Biopolym. Cell. 1994; 10(6):5-35.
Genome variability of plant somatic cells. 1. Variability during ontogenesis
1Kunakh V. A.
  1. Institute of Molecular Biology and Genetics, NAS of Ukraine
    150, Akademika Zabolotnoho Str., Kyiv, Ukraine, 03680


Literature data concerning genome variability of higher plant somatic cells during ontogenesis were reviewed. Genome endoreduplication to occur at various plant developmental steps, differential replication and deamplification events, parallels and differences of genome variability among various plants, functional implication and probable mechanisms and reasons underlying genome variability as well its control were appreciated. Special emphasis was given to supposed key role of hormonal system in the genome variability control during higher plant ontogenesis.


[1] Tomilin NV. Cell genome instability. L. : Nauka, 1983. 158 p.
[2] Khesin RB. Genome instability. Moscow, Nauka, 1984; 472 p.
[3] Paponov VD. Dynamics of the genetic apparatus eukaryotov (dynamics of genome). Usp Sovrem Biol. 1981; 103(3):354-70.
[4] Solovyan VT. Adaptation of cells to environmental factors. Induction of genome rearrangemen. Biopolym Cell. 1991; 7(1):50-54.
[5] Akif'ev AP, Khudoliĭ GA. Mutagenesis and genetic homeostasis in higher organisms. Vestn Ross Akad Med Nauk. 1993;(1):3-9.
[6] D’Amato F. Polyploidy in Cell Differentiation. Caryologia. 1989;42(3-4):183–211.
[7] Kunakh VA. Genome variation in plant somatic cells and factors regulating this process. Tsitol Genet. 1980; 14(1):73-81.
[8] Marx JL. Instability in Plants and the Ghost of Lamarck: The repetitive DNA sequences in the plant genome make a major contribution to genetic instability and variability in plants. Science. 1984;224(4656):1415-6.
[9] Nagl W. Replication. Progress in Botany. 1987;181–91.
[10] Nagl W. Chromosomes role in the differentiation. : Current Achievements molecular biology of chromosomes and cell . Alma-Ata. 1989: 97-134.
[11] Cionlni PG. Nuclear DNA changes during plant development. G bot ital. 1989; 123(1-2):111-21.
[12] Bassi P. Quantitative variations of nuclear DNA during plant development: a critical analysis. Biol Rev. 1990;65(3):185–225.
[13] Lipaeva LI. Polyploidy tissues during ontogenesis of plants. Polyploidy in plants. Moscow: Publ Academy of Sciences SSSR, 1962: 90-7.
[14] Tschermak-Woess E. Karyologische Pflanzenanatomie. Protoplasma. 1956;46(1-4):798–834.
[15] Bennet MD. Nuclear characters in plants. Basic mechanisms in plant morphogenesis: Brookhaven Symp. Biology. 1973; 25: 344-66.
[16] Nagl W. Endopolyploidy and polyteny in differentiation and evolution. Amsterdam : North-Holland, 1978.
[17] Kunakh VA. Variability in chromosomes number during plant ontogenesis. Tsitol Genet. 1978;12(2):160-73. Russian.
[18] Brodsky VY, Uryvaeva IV. Cell polyploidy, proliferation and differentiation. Nauka, 1981. 259 p.
[19] Ioffe MD. Polyploidy in the endosperm of flowering plants. Probl. embryology. K.: Naukova Dumka, 1971: 170-96.
[20] Ioffe MD. Features double fertilization in the genus Melampyrum L. (Scrophulariaceae) (in relation to the formation of diploid endosperm). Bot Zh. 1976;61(11): 1515-30.
[21] Rieger, R., Michaelis, A. Genetic and cytogenetic dictionary. Moscow: Kolos, 1967. 608 p.
[22] Petrova TF. Agglutination de la chromatine au cours des mitoses dans l'albumen chez Eryihronium sibiricum. Rev. cytol biol. veget. 1969; 32(3-4): 391-6.
[23] Sokolov ID. Spontaneous chromatine agglutination in the region of normal endosperm mitosis of Iris Pseudacorus L. Tsitol Genet. 1973; 7(3): 208-9.
[24] Sokolov ID, Bondarenko AM. Abnormal mitoses in the low part of Iris pseudacorus L. and I. pumila L. endosperm. Tsitologiia. 1974; 16(12): 1470-4.
[25] Stephen I. Cytological investigation on the endosperm of Borassus flabellifer. Cytologia. 1974; 39: 195-207.
[26] Syamasundar J, Panchaksharappa MG. The Formation of Hypertrophied Nuclei in the Endosperm of Allium Cepa L. . Caryologia. 1975;28(2):157–62.
[27] Stephen J. Mechanisms of endopolyploidization in Datura endosperm. Cytologia. 1980;45(4):657–61.
[28] Terziyski D, Dumanova A. Cytoembryological study the ontogeny of the endosperm in several species of the genus Lathyrus L .. The sexual process and plant embryogenesis: Proceedings of the All-Union. symposium. M. 1973: 231-2.
[29] Bannikova VP. Cytoembryology interspecific incompatibility in plants. K: Naukova Dumka, 1975. 284 p.
[30] Kowles RV, Srienc F, Phillips RL. Endoreduplication of nuclear DNA in the developing maize endosperm. Dev Genet. 1990;11(2):125–32.
[31] Tschermak-Woess E. Regular appearance of giant chromosomes in chalazahaustorium of Rhinanthus. Chromosoma. 1957;8(5):523-44.
[32] Hasitschka-Jenschke G. Das Langenverhaltnis der Eu- und Heterochromatischen Abschnitte Riesenchromosomenartiger Bildungen Verglichen mit dem der Prophasechromosomen bei Bryonia Dioica. Chromosoma. 1961;12(1):466–83.
[33] Tschermak-Woess E, Hasitschka-Jenschke G. Das Verhalten von B-Chromosomen besonderer Ausbildung in den endopolyploiden Riesenkernen des chalazalen Endospermhaustoriums vonRhinanthus. Osterr bot Z. 1963;110(4):468–80.
[34] Tschermak-Woess E, Enzenberg-Kunz U. Die Struktur der Hoch Endopolyploiden Kerne Im Endosperm von Zea Mays, Das Auffallende Verhalten Ihrer Nucleolen und Ihr Endopolyploidiegrad. Planta. 1965;64(2):149–69.
[35] Geitler L. Riesenchromosomes bei Pflanzen. Forsch Fortschr. 1965; 39(10):295-8.
[36] Ivanovskaya IV. Developmental polyploidy in tissues weevil cereals. Izv Akad Nauk SSSR Biol. 1968; 1(4):507-516.
[37] Stephen I. Occurrence of polyteny, endopolyploidy and numerical variation of nucleoli in maize endosperm. Sci Cult. 1973; 37: 323-324.
[38] Guervin C, Le Coq C, Brouland M. L'ontogenese de l'albumen chez le Delphinium ajacis L.: le probleme de la «regulation» du nombire des chromosomes et de la quantite d'ADN intranucleaire. C. r. Acad, sci. 1976; (12): 1175-8.
[39] Le Coq C, Brouland M, Guervin G. Le probleme de la regulation nucleaire au cours de l'ontogenesis de l'albumen, a la lumiere de resultats obtens chez les Renunculacees. Bull Soc bot France. 1978; 125(1-2): 261-5.
[40] Pontovich VE. Early embryogenesis of angiosperms and its hormonal regulation. Plant growth. Primary mechanisms. M., 1978: 205-234.
[41] Smith AR, van Staden J. Cytokinins in excised embryos and endosperm of Zea mays L. grown under aseptic conditions. Z Pflanzenphysiol. 1979;93(2):95–103.
[42] Kandelaki GV. Hybridization and pseudogamy phenomenon. Apomixis and selection. Moscow: Nauka, 1970: 171-82.
[43] Leung DW, Reid JS, Bewley JD. Degradation of the endosperm cell walls of Lactuca sativa L., cv. grand rapids in relation to the mobilisation of proteins and the production of hydrolytic enzymes in the axis, cotyledons and endosperm. Planta. 1979;146(3):335-41.
[44] Zagorcheva L, Molhoua E. Study on endosperm karyology of Cucumis sativus L. diploid and tetraploid forms and of their reciprocal crosses. Dokl Bolg Akad Nauk. 1976; 29(7):1063-6.
[45] Solntseva MP. Polyploidy nucleus by hemigamnius embryos. XIV International genet. Congr. (Moscow, 21-30 August., 1978): Proc. Conf. M., 1978, Part 2: 41.
[46] Yermakov IP, Barantzeva LM, Matveeva NP. A cytochemical study of DNA during the process of egg maturation and the early embryogenesis Pinus sibirica Du Tour. Ontogenez. 1981;12(4):339-45.
[47] Vallade J, Cornu A, Essad S, Alabouvette J. Niveaux de DNA dans les noyaex zygotiques chez le Petunia hybrida hort. Bull Soc bot (France). 1978; 125(1-2):253-8.
[48] Mericle LW, Mericle RP. Confounding the quandary of zygotic DNA. Barley Genet. Newsl. Colo : Fort Collins, 1973. Vol. 3: 39-42.
[49] Tschermak-Woess E. Die DNS-Reproduktion in ihrer Beziehung zum endomitotischen Strukturwechsel. Chromosoma. 1959;10(1-6):497–503.
[50] Viegi L, Cela R, Cela G. Determinazione citofotometrica del contenuto in DNA nelle cellule del sospensore di alcune Cruciferae. G bot Ital. 1977; 111(6):358-9.
[51] Silcock DJ, Francis D, Bryant JA, Hughes SG. Changes in Nuclear DNA Content, Cell and Nuclear Size, and Frequency of Cell Division in the Cotyledons of Brassica napus L. during Embryogenesis. J Exp Bot. 1990;41(4):401–7.
[52] Bohdanowicz J. Karyological anatomy of the suspensor in Alisma L. 1. Alisma ptantagoaquatica L. Acta biol crac Ser bot. 1973; 16(2):235-46.
[53] Nagl W. Puffing of polytene chromosomes in a plant (Phaseolus vulgaris). Naturwissenschaften. 1969;56(4):221-2.
[54] Nagl W. Inhibition of Polytene Chromosome Formation in Phaseolus by Polyploid Mitoses. Cytologia. 1970;35(2):252–8.
[55] Brady T. Activities of polytene chromosomes in Phaseolus. J Cell Biol. 1970; 47(2):223.
[56] Malyshev LV, Bannikova VP, GlebaYu Yu. Polytene chromosomes of Phaseolus vulgaris. Tsitol Genet. 1982; 22(3):47-8.
[57] Ilina GM. Structure of giant nuclei and antipodal cell suspension Nuresoit procumbens L. The sexual process and plant embryogenesis: Proceedings of the All-Union. Symp. M., 1973: 85-6.
[58] Brady T. Feulgen cytophotometric determination of the DNA content of the embryo proper and suspensor cells of Phaseolus coccineus. Cell Differ. 1973;2(2):65–75.
[59] Nagl W. DNA synthesis in tissue and cell cultures. Tissue culture and plant science. New York : Acad, press, 1974: 19-42.
[60] Ayanzi S, Cionini PG, Cremonini R. et al. I chromosomi politenici di Phaseolus coccineus L. Boil zool. 1975; 42(4):432-3.
[61] Yeung EC, Sussex IM. Embryogeny of phaseolus coccineus: the suspensor and the growth of the embryo-proper in vitro. Z Pflanzenphysiol. 1979;91(5):423–33.
[62] Ivanovskaya EV. Cytoembryological study differentiation of plant cells. Moscow: Moscow State University, 1983. 142 p.
[63] Zakhar'eva OI. Polyploidy in the ontogeny of plants. Polyploidy in plants, Proc. Meeting on polyploidy in plants. Moscow: Publ USSR Academy of Sciences, 1962: 98-109.
[64] Berlyn GP, Anoruo AO, Beck RC, Cheng J. DNA content polymorphism and tissue culture regeneration in Caribbean pine. Botanique. 1987;65(5):954–61.
[65] Del Nero-Buffalino L, Witkus R. The first appearance of polyploid nuclei in primary roots ol two diploid angiosperms. Ann Bot. 1984; 53(1): 53-8.
[66] Cottignies A. Dormance et arret du cycle cellulaire dans l'embryon de Frene. C. r. Acad, sci. 1983; 296(21):1019-24.
[67] Conger BV, Carabia JV. Proportions of 2C and 4C nuclei in the root and shoot of dormant and germinated embryos of Festuca arundinacea and Dactylis glomerata. Environ Exp Bot. 1978;18(1):55–9.
[68] Dhillon SS, Miksche JP. DNA content and heterochromatin variations in various tissues of peanut (Arachis hypogaea). Am J Bot. 1982;69(2):219-26.
[69] Singh BD. Occurrence of endopolyploidy in mature seeds of Vicia hajastana Grossh. Ind J Exp Biol. 1974; 12(5):468-9.
[70] Nagl W, Capesius I. Endopolyploidy inHelianthus annuus (Asteraceae), A scanning cytophotometric study. Plant Syst Evol. 1976;125(4):261–8.
[71] Johnson KA, Sussex IM. Genomic amplification in the cotyledon parenchyma of common bean. Chromosoma. 1990;99(3):223-30.
[72] Bryans C, Smith DL. Endopolyploidy, cell volume and nuclear volume interrelationships in cotyledons of the Leguminosae. Ann Bot. 1985; 56(2): 225-37.
[73] Broekaert D, van Parijs R. The relationship between the endomitotic cell cycle and the enhanced capacity for protein synthesis in Leguminosae Embryogeny. Z Pflanzenphysiol. 1978;86(2):165–75.
[74] Capesius I, Stöhr M. Endopolyploidy during elongation growth of the hypocotyl of Sinapis alba (author's transl). Protoplasma. 1974;82(1):147-53.
[75] Wright GS. Growth and cellular differentiation in the wheat coleoptile (Triticum vulgare L.). 1. Estimation of cell number cell volume and certain nitrogenous constituents. J Exp Bot. 1961; 12:303-18.
[76] Svarinskaya RA, Gavrilova NS. Cytogenetic analysis of gibberellin Effect on barley seedlings. Genetika. 1976; 12(6):20-9.
[77] Ahmed ZU, Kamra OP. DNA content of dormant barley leaf nuclei and the rate of cell entry into S-Phase and mitosis. Caryologi. 1976;29(2):187–93.
[78] Boeken G, Oostveldt PV, Parijs RV, Fredericq H. Proceedings: Phytochrome-controlled endomitosis during the process of cell elongation in the epicotyl of Pisum sativum seedlings. Arch Int Physiol Biochim. 1975;83(1):169-71.
[79] Boeken G, Van Oostveldt P. Gibberellic-acid-induced cell elongation in pea epicotyls: Effect on polyploidy and DNA content. Planta. 1977;135(1):89-91.
[80] Nougarede A, Rembur J. Extension cellulaire division cellulaire et niveaux de ploidie des cellules corticales de l'epicotyle du pois en cours d'elongation. Can J Bot. 1980; 58(4):486-501.
[81] Cavallini A, Cremonini R, Cionini G, Cionini PG. Polysomaty and somatic reduction in Phaseolus coccineus L. Genome. 1988;30(5):671–6.
[82] Marciniak K, Bilecka A. Changes in nuclear, nucleolar and cytoplasmic RNA content during growth and differentiation of root parenchyma cells in plant species with different dynamics of DNA endoreplication. Folia Histochem Cytobiol. 1985;23(4):231-45.
[83] Levi M, Tarquini F, Sgorbati S, Sparvoli E. Determination of DNA content by static cytofluorimetry in nuclei released from fixed plant tissue. Protoplasma. 1986;132(1-2):64–8.
[84] Gimenez-Martin G, Risueno MC, Lopez-Skez JF. Nuclear fusion in somatic cells. Observation with the electron microscope. Fyton. 1965; 22(2):173-5.
[85] Vig BC. Relationship between mitotic events and leaf spotting in Glycine max. Can J Genet Cytol. 1969;11(1):147-52.
[86] Atabekova AI. A mechanism of polyploid nuclei in plants. Polyploidy and selection, Proc. soveshch. (14-18 January. 1963). M L.: Nauka, 1965: 129-33.
[87] Tang H, Liang GH. An improved technique for cytological observations and occurrence of polysomaticism in sorghum root tips. J Hered. 1987; 78(1):51-3.
[88] Ahmed R, Gupta SD, Ghosh PD. The cytological status of plants regenerated from shoot-meristem culture of Pisum sativum L. Plant Breeding. 1987;98(4):306–11.
[89] Nishibayashi S. Microspectrophotometrical studies on the nuclear DNA content in the somatic tissues of Spinacia oleracea L. J Sci Hiroshima Univ. Ser. B. 1983; 2:191-233.
[90] Barlow PW. The time-course of endoreduplication of nuclear DNA in the root cap of Zea mays. Cytobiologie. 1977; 16(1):98-105.
[91] Murry LE, Christianson ML. Phylogenetic comparison of large nuclear dna contents of differentiated cells in the roots of equisetum, tradescantia, and hordeum. Am J Bot. 1987;74(12):1772-8.
[92] Kubica S. Determination of the DNA content in the central and peripheral metaxylem of the barley root. Biologia (SSSR). 1981; 36(6): 413-7.
[93] Demchenko NP. Mitotic and endoreduplication cycles in the development of the wheat root metaxylem cell lines. Tsitologiia. 1984;26(4):382-91.
[94] Demchenko NP. Dependence of inhibition sequence in transition of the percycle and xylem cells to DNA synthesis and to division on their localization in wteat root. Tsitologiia 1990; 32(3):209-19.
[95] Ivanov VB. Cell-based plant growth. Nauka, 1974. 224 p.
[96] Vahitov VA, Fatkhutdinova RA. DNA content in the cells of the leaves and roots of different zones di-and polyploid species of wheat and Aegilops. Biochim. and Fiziol. genet. bases of heterosis and homeostasis of plants. Ufa, 1986: 3-14.
[97] Demchenko NP. Changes in DNA content in phloem group cells of the wheat root in the course of development. Tsitologiia. 1989; 31(6):664-76.
[98] Hervás JP. Mitotic activity of endopolyploid root cells inAllium cepa. Experientia. 1975;31(10):1143–4.
[99] Kubica S, Baluska F, Gasparikovk O. Pattern of nucleic acids synthesis in the root apex of Zea mays L. Biologia. 1989; 44(3):201-7.
[100] Damsz B, Łuchniak P. Nuclear DNA endoreplication and plastid index in mesophyll of some dicotyledonous species. Acta Societatis Botanicorum Poloniae. 1988;57(3):303–16.
[101] Pijnacker LP, Sree Ramulu K, Dijkhuis P, Ferwerda MA. Flow cytometric and karyological analysis of polysomaty and polyploidization during callus formation from leaf segments of various potato genotypes. Theor Appl Genet. 1989;77(1):102-10.
[102] Troshina NB, Arslangulova AS. The DNA content in the cells of the leaves of various forms of peas and corn. Genet. selection. research in the Urals. Inf. mat. Sverdlovsk, 1984: 92-93.
[103] Troshina NB. Variations in DNA content under differentiation and ageing of cell of maize and pea plants leaves mesophyll. Fiziologiia i biokhimiia kul'turnykh rasteniy. 1991;23(1):88-91.
[104] Kinyapina NL, Ivleva LA, Farkhutdinova GF, Kireyeva TA. Endopolyploidy in Pisum sativum L . 4th All-Union. biochem. Congress: Abstracts. scientific. msg. M. 1979; 2: 229.
[105] Nandi S, Eriksson T. Nuclear behaviour of pea leaf protoplasts. Hereditas. 1977;85(1):49–56.
[106] Aliyev RT, Mammadov AD. On the mechanism of increasing the content of DNA in the cell nuclei heterosis hybrids of wheat and tomatoes. Agrichult. biology. 1987;6:9-12.
[107] Uijtewaal BA. Ploidy variability in greenhouse cultured and in vitro propagated potato (Solanum tuberosum) monohaploids (2n=x=12) as determined by flow cytometry. Plant Cell Rep. 1987;6(3):252-5.
[108] Brossard-Chriqui D. Origine et degres de ploidie des meristemes racinaires regeneres in vitro sur des disques foliaires issus de plantes haploides, diploides et tetraploides de Nicotiana tabacum (varietes «Wisconsin 382» et «Xanth»). Can J Bot. 1980; 58(4):477-85.
[109] Van Oostveldt P, Lemeur JR, Van Parijs R, Schatck J. Genetic and somatic polyploidy in relation to photosynthesis in Beta vulgaris. Meded Fac landbouwwetensch Rijksuniu. Gent. 1986; 51(2):499-508.
[110] Nazarov MN. Nuclear size and cytophotometry of DNA content in cells of leaves emerging species of Cerasus. Biol. basics of plant breeding. Voronezh, 1985: 85-94.
[111] Shcherbakov VK. Polyploidization and chromosome division reduction in plants under the influence of various factors and the role of the nucleus and cytoplasm in these processes. Usp Sovrem Biol. 1962;54:146-57. Russian.
[112] D'Amato F. Nuclear cytology in relation to development. Cambridge: Univ. press, 1977.
[113] Warden J, Catarino FM. Endopolyploidy in Bryophyllum crenatum. The effect of leaf age and photoperiod on the nuclear DNA content. Part, acta biol. 1977-1979.. A15(1-4): 39-58.
[114] Baranov PA, Matveeva TS. Value of polyploidy in experimental botany. Polyploidy in plants. M .: Publ Academy of Sciences SSSR, 1962: 11-20.
[115] Corsi G, Corsi R. Nuclear structure and DNA content in glandular hairs of Salvia officinalis L. Hereditas. 2008;109(1):83–7.
[116] Kausch AP, Horner HT. Increased nuclear DNA content in raphide crystal idioblasts during development in Vanilla planifolia L. (Orchidaceae). Eur J Cell Biol. 1984;33(1):7-12.
[117] Olszewska MJ, Damsz B, Kononovicz AK. Cytochemical analysis of changes in nuclear DNA content in leaves from young and flowering plants of Vicia faba L. Biol Zentralbl. 1986; 105: 57-68.
[118] Brossard D. Rootorganogenesis from foliar dfecs of Crepis capillaris L. Walir. Cultured in vitro: cytochemical and microspectrophotometric analysis. New Phytol. 1977; 79(2): 423-9.
[119] Kaufman PB, Petering LB, Soni SL. Ultrastructural studies on cellular differentiation in internodal epidermic of Avena sativa. Phytomorphology. 1970; 20(3):281-309.
[120] Landre P. Teneurs en DNA nucleaire de quelques types cellulaires de l'epiderme de la morelle noire (Solanum nigrum L.) au cours du development de la fenille. Etude histologique et cytophotometrique. Ann sci natur Bot. et biol. veget. 1976; 17(1):5-104.
[121] Borodin IP. Course of plant anatomy: Peterburt; Moscow: Izd MO Wolf, 1910. 367 p.
[122] Winkier H. Uber die Experimented Erzeugnuung von Pflanzen mit abweichenden Chromosomenzahlen. Zeit Bot. 1916; 8:417-31.
[123] Ermakov IP, Kabanov VV. cytophotometry amount of DNA in the nuclei of cells of different parts of pea plants. Biol nauki. 1967; 8: 99-102.
[124] Mohamed Y, Bopp M. Distribution of polyploidy in elongating and non-elongating shoot axis of Pisum sativum. Z Pflanzenphysiol. 1980;98(1):25–33.
[125] Brossard D. La neoformation de bourgeons vegetatifs a partir de la molle du Tabac (Nicotiana tabacum L. var Wisconsin 38) cultivee in vitro. Analyse cytochimique, historadiographique et cytophotometrique. Ann. sci. natur. Bot: et biol. veget., 1975; 16(1):43-150.
[126] Franklin CI, Mott RL, Vuke TM. Stable ploidy levels in long-term callus cultures of loblolly pine. Plant Cell Rep. 1989;8(2):101-4.
[127] Sauter JJ, Ulrich H. Cytophotometric investigation of DNA and RNA content in nuclei of active Strasburger cells in Pinus nigra var. austriaca (Hoess) Badoux. Planta. 1977;137(1):5-11.
[128] Mellerowicz EJ, Riding RT. Does DNA Endoreduplication Occur During Differentiation of Secondary Xylem and Phloem in Abies balsamea? Int J Plant Sci. 1992;153(1):26-30.
[129] Bennici A, Buiatti M, D’Amato F. Nuclear conditions in haploid Pelargonium in vivo and in vitro. Chromosoma. 1968;24(2):194–201.
[130] Zobel AM. Mixoploidy of tannin coenocytes in Sambucus racemosa L.. Acta Soc. bot. pol. 1975; 44(4):491-500.
[131] Kunakh VA. Polyploidy in cell culture in vitro and its possible causes. Experim. polyploidy in crop plants. Kiev: Naukova, Dumka, 1974: 39-57.
[132] Prokofiev-Bel'govskaya AA. Nuclear cycle cand differentiated somatic cells. Issues. Cytology and general physiology. M. L: Izd AN SSSR, 1960: 215-53.
[133] Goroshchenko YuL, Chuksanova NA. Endopolyploidy as a factor in increasing the size of potato tuber in the process of speciation. Polyploidy and selection, Proc. soveshch. (14-118 January., 1963). M, L .: Science, 1965: 285-9.
[134] Hovenkamp-Hermelink JHM, Jacobsen E, Pijnacker LP, Vries JN, Witholt B, Feenstra WJ. Cytological studies on adventitious shoots and minitubers of a monoploid potato clone. Euphytica. 1988;39(3):213–9.
[135] Falavigna A, ffussey G. Multiplicazione in vitro della cipolla (Allium cepa). Genet agr. 1980;34(1-2):165-6.
[136] POddubnaya-Arnoldu VA. Microsporogenesis and male gametophyte of angiosperms. Probl. embryology. K: Naukova Dumka, 1971: 26-72.
[137] Cavallini A, Cionini PG. Nuclear DNA content in differentiated tissues of sunflower (Helianthus annuus L.). Protoplasma. 1986;130(2-3):91–7.
[138] Del Castillo AM. Cytophotometry and cycle kinetics in tapetum of Allium cepa L. anthers . Acta Bot Gallica. 1988;135(2):137–45.
[139] Turala-Szybowska K. Inhibited prophases in the differentiation of the anthers tapetum in Ranunculus fluitans Lam. Acta biol crac Sor bot. 1984;26:33—42.
[140] Karlova AA. Development of anther wall, microsporogenesis and the formation of male gametophyte in four species of the genus Digitalis L. Biol. science. 1973; 8(116): 55-7.
[141] Oksala T, Therman E. Endomitosis in Tapetal Cells of Eremurus (Liliaceae). Am J Bot. 1977;64(7):866-72.
[142] Sokolowska-Kulczycka A. Kariologia tapetum pylnikowego Lilium bulbiferum L.. Spraw. czyn. i pos. nauk LTN. 1980; 34(3):1-6.
[143] Herich R. Study of specific programmes of cytodifferentiation and degradation of tapetal cells. Acta Fac rerum natur. Univ. comen. Physiol, plant. 1983. 19: 1-7.
[144] Mahanets IA. Apparance of polyploid cells in the generative organs of rye. Metabolism of the cell nucleus and nuclear-cytoplasmic ratio. III All-Union. Symp. the structure and functions of the cell nucleus: Proc. Conf : Naukova Dumka. 1970: 143-146.
[145] Novkk FJ, Vyskot B. Cytology and pollen fertility of Nicotiana tabacum L. haploids derived from anther and tissue cultures. Beitr Biol. Pflanz. 1978; 54(3): 329-51.
[146] Vlasova NA. Endopolyploidy cotton floss. Botanich Zh. 1976, 61(1):99-106.
[147] Radjabov DH, Vlasova NA. Change ploidy nuclei of different varieties of cotton floss. Uzbek biol Zh. 1982; 5: 61-5.
[148] Radjabov DH. The change in volume of the nuclei of cotton fibrils due to their ploidy. Changing ploidy nuclei of different varieties of cotton floss. Uzbek biol Zh. 1976;6: 69-72.
[149] Barclay IR. High frequencies of haploid production in wheat (Triticum aestivum) by chromosome elimination. Nature.; 1975;256(5516):410–1.
[150] Sato Shinichk The nuclear DNA contents in the synergids and antipodal cells of the mature embryo sac of Allium tuberosum. Sci. Repts Hirosaki Univ. 1990;37(2): 124-7.
[151] Alekseeva TV, Matveenko NP, Il'ina GM, Ermakov IP. Cytochemical study of the antipodal complex in Papaver somniferum L. Nauchnye Doki Vyss Shkoly Biol Nauki. 1976;(6):97-102.
[152] Hasitschka G. Bildung von Chromosomenbundeln nach art der speicheldrusenchromosomen, spiralisierte Ruhekernchromosomen und andere Struktureigentumlichkeiten in den endopolyploiden Riesenkernen der Antipoden von Papaver rhoeas. Chromosoma. 1956;8(1):87–113.
[153] Hasitschka-Jenschke G. Vergleichende karyologische untersuchungen an antipoden. Chromosoma. 1959;10(1-6):229–67.
[154] Geitler L, Tschermak-Woess E. Morphologie und Entwicklungsgeschichte der Zelle. Fortschr. Bot. 1969;32:1-17.
[155] Odenbach W. Histologische und cytologische Untersuchungen der Entwicklungsvorgange nach der Bestaubung von Gerste mit Roggen». Z Pflanzenzucht. 1965; 53:1-52.
[156] Ivanovskaya HV, Prokofieva ZD. Nature pseudofragmentation of nuclei with polytene chromosomes. Tsitol Genet. 1970; 4(5):392-6.
[157] Ivanovskaya EV. Functional morphology of polytene chromosomes of wheat antipode. Tsitologiia. 1973; 15(12):1445-52.
[158] Pushkina NN, Ananiev EV, Barsky VE, Yakovleva EYu. Light and electron microscopic investigation of the structure and regularities of formation of polytene chromosomes in antipode cells of Hordeum vulgare. Tsitologiia. 1989; 31(9):1120-33.
[159] Manteuffel R, Mintz K, Puckel M, Scholz G. Phase dependent changes of DNA, RNA and protein accumulation during ontogenesis of broad bean seeds (Vicia jaba). Biochem Physiol Pflanz. 1976; 169: 595-605.
[160] Danzhar P. Cytology of plants and general cytology. M., 1950. 289 p.
[161] Newbury HJ, Sedgley M, Possingham JV. Nucleic acid metabolism during early development of pollinated and auxin-induced parthenocarpic watermelon fruits. J Exp Bot. 1978;29(1):207–15.
[162] Bradley M, Crane J. Influence of 2,4,5-trichlorophenoxyacetic acid by the amount of cells and nuclei in the parenchyma and endopolyploidy apricot fruit. The use of growth promoters in fruit growing. M., 1958: 170-91.
[163] Kolesnikova LS. Dual core apple pericarp cells as a result of conjugation and auto teterosinteticheskih processes. 2 nd Congress of the All-Union. soc of Plant Physiologists (Minsk, 24-29 September., 1990) Proc. Conf. M., 1992, Ch 2: 104.
[164] Grant WF. Decreased DNA content of birch (Betula) chromosomes at high ploidy as determined by cytophotometry. Chromosoma. 1969;26(3):326–36.
[165] Ali-Zadeh MA, Ahundova EM. DNA content in somatic cells in polyploid forms of mulberry Morus L. Dokl Akad Nauk SSSR. 1970. 191(4): 939-940.
[166] Ahundova EM. Change of DNA content in the plant cell and chromosome due to polyploidization. Exp Plant mutagenesis. Baku: Elm, 1974, Vol 2: 143-5.
[167] Ali-Zadeh MA, Ahundova EM, Gajiyev ShI. Reducing the number of DNA s nucleus of a somatic cell during ontogeny. Structure and function of the cell nucleus: Proc. msg. Novosibirsk, 1975: 143-4.
[168] Bennett MD, Jellings AJ. DNA content of colchicine-induced endopolyploid nuclei in vicia faba L. Heredity. 1975;35(2):261–72.
[169] Vakhitov VA, Makhlayeva RF, Gilyazetdinov ShYa, Konarev VG. Comparative study of repetitive nucleotide sequences of DNA alloploidov wheat and their wild relatives. Works on Appl. botany, genetics and breeding. Institute of Plant. 1976; 58(1):57-68.
[170] Aliyev RT. The changes of repeated sequences fractions in plant the genomes under heterosis. Genetika. 1993; 29(6):990-4.
[171] Cullis CA, Davies DR. Ribosomal DNA Amounts in PISUM SATIVUM. Genetics. 1975;81(3):485-92.
[172] Giliazetdinov SI, Vakhitov VA, Iakhin IA. Repeatability of rRNA cistrons in heterosis plant hybrids. Tsitol Genet. 1976;10(4):312-6.
[173] Gilyazetdinov ShYa, Yakhin IA, Kamaletdinova MA, Erkeev MI, Aliev RT. The content of rDNA in organs and tissues of maize heterosis hybrids and their parental forms. Fiziologiia rasteniy. 1977; 24(3):513-20.
[174] Giliazetdinov SI, Iakhin IA, Ivleva LA. The content of nucleic acids and proteins in embryonic cells and tissues differentiated parent forms heterotic hybrids of maize. Fiziologiya i biokhimiya kul't rasteniy. 1978;10(6):601-7.
[175] Giliazetdinov SI. Cell polyploidy, rDNA content and productivity of maize plants and peas. Agricult biology. 1985;1: 57-62.
[176] Bulko AP, Gordei IA. The amount of DNA and rDNA in cells line and their initial parents variety at certain stages of plant development. Vests BSSR. 1989;2: 44-7.
[177] Landré P. Evolution of Nuclear DNA Content in Secretory Trichome Cells of Solanum Nigrum L. During Their Formation . Caryologia. 1976;29(2):235–45.
[178] Durante M, Cremonini R, Brunori A, Avanzi S, Innocenti AM. Differentiation of metaxylem cell line in the root of Allium cepa. I. DNA heterogeneity and ribosomal cistrons of two different stages of differentiation. Protoplasma. 1977;93(2-3):289-303.
[179] Dührssen E, Schäfer A, Neumann K-H. Qualitative Differences in the DNA of Some Higher Plants, and Aspects of Selective DNA Replication During Differentiation. Plant Syst Evol. 1979;95–103.
[180] Altamura MM, Bassi P, Cavallini A, Cionini G, Cremonini R, Monacelli B, et al. Nuclear DNA changes during plant development and the morphogenetic response in vitro of Nicotiana tabacum tissues. Plant Sci. 1987;53(1):73–9.
[181] Ali-Zade MA, Akhundova EM. Quantitative changes in the content of nucleic acids and proteins in the leaves of mulberry in relation to their age. Izv Akad Nauk AzSSR. 1976; 2: 40-7.
[182] Cavallini A, Zolfino C, Natali L, Cionini G, Cionini PG. Nuclear DNA changes within Helianthus annuus L.: origin and control mechanism. Theor Appl Genet. 1989;77(1):12-6.
[183] Schäffner K-H, Nagl W. Differential DNA Replication Involved in Transition From Juvenile to Adult Phase in Hedera helix (Araliaceae). Plant Syst Evol. 1979;105–10.
[184] Patankar S, Ranjekar PK. Condensed chromatin and its underreplication during root differentiation in leguminosae. Plant Cell Rep. 1984;3(6):250-3.
[185] Kononowicz AK, Olszewska MJ, Waldoch E. Changes in heterochromatin content during differentiation of some rooit tissues in Vicia faba L. subsp. major and subsp. minor. Biol Zbl. 1983; 102(6) 675-84.
[186] Marciniak K, Maszewski J. Replicon size and the rate of DNA synthesis during root cell differentiation in Vicia faba subsp. minor and major,. Biol Zbl. 1988; 108(3):241-8.
[187] Cremonini R, Cionini PG. Extra DNA synthesis in embryo suspensor cells ofPhaseolus coccineus. Protoplasma. 1977;91(3):303–13.
[188] Gilyazetdinov ShYA, Vakhitov VA, Yerkeyev MI. Repeated nucleotide sequences in DNA and differentiated embryonic tissues wheat. Fiziologiya RAsteniy. 1976; 23(5): 996-1002.
[189] Broekaert D, van Oostveldt P, van Parijs R. Differential DNA replication in Pisum sativum L. Seedlings at the onset of germination. Biochem Physiol Planz. 1979; 174(8):629-40.
[190] Chuksanova NA. Variability of chromosome size and shape in the course of evolution of the angiospermea plants. Tsitologiia. 1969; 11(7):785-95.
[191] Mukherjee S, Sharma AK. In situ nuclear DNA quantitation in organs of different strains of Cicer arietinum. Cytobios. 1986; 48(194-195):151-6.
[192] Cavallini A, Zolfino C, Cionini G, Cremonini R, Natali L, Sassoli O, Cionini PG. Nuclear DNA changes within Helianthus annuus L.: cytophotometric, karyological and biochemical analyses. Theor Appl Genet. 1986;73(1):20-6.
[193] Pearson MJ. Polyteny and the functional significance of the polytene cell cycle. J Cell Sci. 1974;15(2):457-79.
[194] Nagl W. Polytene chromosomes of plants. Int Rev Cytol. 1981; 73:21-53.
[195] Lawrence ME, Possingham JV. Direct measurement of femtogram amounts of DNA in cells and chloroplasts by quantitative microspectrofluorometry. J Histochem Cytochem. 1986;34(6):761-8.
[196] Kuroiwa T., Suzuki T, Ogawa K, Kawano S. Chloroplast nucleus: General occurrence, number, size, shape and a model for amplification of chloroplast genome during chloroplast development. Plant Cell Physiol. 1981; 22: 381-96.
[197] Evans LS, Hof JV. Is Polyploidy Necessary for Tissue Differentiation in Higher Plants? Am J Bot. 1975;62(10):1060-4.
[198] Cullis CA. Unstable genes in plants. Plast. Plants: Symp., (Durham, 3-6 Sept., 1985). Cambridge, 1986: 77-84.
[199] Boddi P, Gennai D, Bennici A. Differenziazione cellulare e contenuto di dna nei tessuti somatici di alcune Liliaceae. G bot ital. 1982; 116(Suppl., N 1):81-2.
[200] Bennici A, Gennai D. Cytophotometric DNA measurements on differentiated tissues of some lilium species. Caryologia. 1985;38(2):221–7.
[201] Banerjee M, Sharma AK. Variations in DNA content. Experientia. 1979;35(1):42–3.
[202] Nagl W. Differential DNA replication in plants: a critical review. Z Pflanzenphysiol. 1979;95(4):283–314.
[203] Walbot V. Rapid genomic change in higher plants. Annu Rev Plant Physiol Plant Mol Biol. 1985;36(1):367–96.
[204] Flavell RB. Repetitive DNA and chromosome evolution in plants. Philos Trans R Soc Lond B Biol Sci. 1986;312(1154):227-42.
[205] Ananev EV. Chernyshev AI. Molecular organization of the genome of plants. Organization of the genome. M., 1989: 218-236.
[206] Robertson DS. Mutator activity in maize: timing of its activation in ontogeny. Science. 1981;213(4515):1515-7.
[207] Magakian IU. Somatic polyploidy in animal embryogenesis. Tsitologiia. 1976;18(3):243-54.
[208] Scheuermann W. Cytological phenomena studied in Vicia faba, in relation to Pelc's hypothesis of a "metabolic" DNA (author's transl). Cytobiologie. 1978;17(1):232-45.
[209] Brodskiĭ VIa, Uryvaeva IV. Somatic polyploidy in tissue development. Ontogenez. 1974;5(6):594-605.
[210] Krenke NP. Chimera plants. M L Izd An SSSR, 1947. 386 p.
[211] Ivanov VB, Filippenko VN. On the role of asymmetric mitosis in cell differentiation rizodermy festucoides cereals. Dokl Akad Nauk SSSR. 1976;230(3): 712-5.
[212] Newell J. Immortality at the price of one daughter cell. Nucl. 1975; 13(8-9): 11-12.
[213] Dyer AF. Modifications and errors of mitotic cell division in relation to differentiation. Cell Div Higher Plants. 1976:199-249.
[214] Davidson D, Pertens E, Eastman MA. Nuclear and cell sizes in different regions of root meristems of Zea mays L.. Ann Bot. 1978;42(182): 1429-38.
[215] Wareing PF. Determination in plant development. Bat Mag Tokyo. 1978; Spec. Iss 1: 3-17.
[216] Portelli C. The L-cell and D-cell of mitosis. J Theor Biol. 1983;101(2):241-6.
[217] Barlow PW. Endopolyploidy: Towards an understanding of its biological significance. Acta Biotheor. 1978;27(1-2):1–18.
[218] Mohr H. Control of plant development: Signals from without—Signals from within. Bot Mag Tokyo. 1988;101(1):79–101.
[219] Troshina N.B, Arslangulova AS. Study of the level of cell polyploidy in various forms of peas and corn. Biochim. and Fiziol. genet. bases of heterosis and homeostasis of plants. 1986: 111-118.
[220] Shcherbakov VK. Forms epigenetic variation and heritable changes caused by the growth conditions of plants. Works on Appl. Botany, Genetics and Breeding, Institute of Plant. 1976; 58(1):110-23.
[221] Walbot V. Rapid genomic change in maize. Is this a new form of developmental plasticity?. J Embryol Exp Morphol. 1984; 82, Suppl: 5.
[222] Cullis CA. The Generation of Somatic and Heritable Variation in Response to Stress. Am Nat. 1987;130(s1):S62-73.
[223] Cebrat S. Kierunkowosc rekombinacyjnych zmian wew-natrzgenomowych. Kosmos. 1987; 36(3):593-605.
[224] Olenov YuM. Cellular heredity, cell differentiation and carcinogenesis as a problem of evolutionary genetics. L. : Nauka, 1967; 310 p.
[225] Nagl W. Nuclear Organization. Annu Rev Plant Physiol. 1976;27(1):39–69.
[226] Patra NK, Chauhan SP. Genetic components of chromosome behaviour in Papaver somniferum L. . Genome. 1988;30(5):677–9.
[227] Lilov D, Andonova T. Change on cytokinin lozata grapes. Plant Physiology (Bulgaria) 1975; 1(4): 3-11.
[228] Ribitska H, Engel'brekht L, Mikulovich TP, Kulayeva OI. Investigation of endogenous substances with cytokinin activity in pumpkin cotyledons due to the specific action of the exogenous cytokinin. Fiziologiya rasteniy. 1977; 24(2):371-9.
[229] Kefeli VI. Plant growth and photomorphogenesis. Fiziologiia rasteniy. 1987;34(4):685-97.
[230] Kefeli VI. Phytohormones and search for new regulators of plant productivity. Agricult biology. 1987;12:81-5.
[231] Kefeli VI, Vlasov YaV, Prusakova LD et al. Natural and synthetic regulators of plant ontogenesis. Results of science and technology. M .: VINITI, (Ser. Plant Physiology, vol. 7). 1990: 158 p.
[232] Chaylakhyan MKh, Negretskiy VA, Lozhnikova VN. Dynamics of cytokinin activity in the ontogenesis of tobacco plants with different photoperiodic sensitivity. Agricult biology. 1987;6: 8-13.
[233] Julin-Tegelman A. The changes in endogenous cytokinin-like substances in Zea mays seeds during germination. Plant Sci Lett. 1979;14(3):259–62.
[234] Guern I. Regulation from within: The hormone dilemma. Ann Bot. 1987; 60(Suppl. 4):72-102.
[235] Nandi SK, Palni LMS, Letham DS, Knypl JS. The Biosynthesis of Cytokinins in Germinating Lupin Seeds. J Exp Bot. 1988;39(12):1649–65.
[236] Ivanov VB. Cell proliferation in plants. Itogi nauki i tekhniki. M.: VINITI,. M .: VINITI (Ser. Cytology, vol 6), 1987;220 p.
[237] Moskaleva OV. Effect of plant hormones on the mitotic activity of maize seedlings. Vestn LGU. 1987;2: 118-21.
[238] Moskaleva OV, Karavaiko NN. Studies of endogenous phytohormones in developing maize seedlings. Fiziologiia rasteniy. 1990; 37(6):1113-20.
[239] Pontovich VE. Tissue and hormonal interactions in early embryogenesis in vitro I. tissue. and cellular. culture in plant breeding. M .: Kolos, 1979: 104-114.
[240] Miller AN, Walsh CS, Cohen JD. Measurement of Indole-3-Acetic Acid in Peach Fruits (Prunus persica L. Batsch cv Redhaven) during Development. Plant Physiol. 1987;84(2):491-4.
[241] McWha JA, Jamesom PE. Are cytokinins Implicated in tuberisation in potato (Solanum tuberosum L.)?. Acta Univ. agr. 1985; A33(3):467-70.
[242] Cionini PG, Bennici A, Alpi A, D'Amato F. Suspensor, gibberellin and in vitro development of Phaseolus coccineus embryos. Planta. 1976;131(2):115-7.
[243] Lorenzi R, Bennici A, Cionini PG, Alpi A, D’Amato F. Embryo-suspensor relations in Phaseolus coccineus: cytokinins during seed development. Planta. 1978;143(1):59–62.
[244] Kalinin FL, Sarnatskaya VV, Polishchuk VE. Tissue culture methods in physiology and biochemistry of plants. Kyiv: Naukova Dumka. 1980; 488 p.
[245] Kallak H, Kaarep YU. Cytogenetics of action of 2,4-D on callus tissue Haplopappus gracilis. Tartu Ulikooli toimetised: Ouch. Taptus notes. Univ. 1976;383:32-51.
[246] Kunakh VA, Zosimovich VP. Effect of kinetin on the frequency and types of chromosome aberrations in a tissue culture of Haplopappus gracilis. Genetika. 1977; 13(8):1355-65.
[247] Kunakh VA, Sidorenko PG, Zosimovich VP. Effect of kinetin on the reproduction of cells of different ploidy. Success of polyploidy. Kiev: Naukova, Dumka, 1977: 203-215.
[248] Kunakh VA, Alpatova LK. The role of plant hormones in the variability of the number of chromosomes in tissue culture Haplopappus gracilis. Dokl Akad Nauk SSSR. 1979;245(4):967-90.
[249] Zakhlenyuk OV, Alekseyeva IV, Chernetskiy VP, Kunakh VA. Effect of kinetics and gliatsidina on tissue culture of tobacco. Plant cell culture and biotechnology. M., 1986: 37-41.
[250] Zakhlenyuk OV, Kunakh VA. Cytophysiological and cytogenetic effects adeniia derivatives in tissue culture Haplopappus gracilis. Fiziologiya rasteniy. 1987;34(3):584-94.
[251] Ogura H. Studies on the genetic instability of cultured tissues and the regenerated plants-effects of auxins and cytokinins on mitosis of Viciallaba cells. Proc. 5 Int. Congr. Plant Tissue and Cell. Cult. (Tokyo and Lake Yamanaka, July 11-16, 1982). Tokyo, 1982: 433-4.
[252] Singh BD. Effects of IAA, NAA and 2, 4-D on cytogenetic behaviour of Haplopappus gracilis (nutt.) gray callus cultures. Caryologia. 1976;29(4):447–55.
[253] Singh BD. Variation in chromosome number and structure in plant cells during in vitro culture. Plant tissue and cell culture. Application to crop improvement: Proc. Int. symp. Prague, 1984: 305-14.
[254] Oono K. Rice tissue cultures. Annu. Rept. Nat. Inst. Agrobiol. Resour. 1985;1:27-8.
[255] Bennici A, Buialti M, D'Amato F, Pagliai M. Nuclear behaviour in Haplopappus gracilis callus grown in vitro on different culture media. Colloq. int. CNRS. 1970;193: 245-50.
[256] Grisvard J, Tuffet-Anghileri A. Variations in the satellite DNA content of Cucumis melo in relation to dedifferentiation and hormone concentration. Nucleic Acids Res. 1980;8(12):2843-58.
[257] Solovyan VT, Popovitch VA, Kunakh VA. Genome rearangement in Crepis capillaris L. (Wallr) cultured cells. Genetika. 1989; 25(10):1768-75.
[258] Kerkis J. Some problems of spontaneous and induced mutagenesis in mammals and man. Mutat Res. 1975;29(2):271-7.
[259] Paulini K, Mohr W. Hormone-dependent Polyploidy in the glandula orbitalis externa and glandula infraorbitalis of animals of different age. Beitr Pathol. 1975;156(1):65-74.
[260] Jordan BR, Thomas B, Partis MD. Light activated genes: prospects for modifying them to increase crop productivity. Biotechnol Crop Impr Prot.: Proc. symp. (Cambridge, 24-26 March, 1986). Thornton Heath, 1986: 49-59.
[261] Willmitzer L. Functional analysis of genes in transgenic plants. Biochem Soc. 1987: 31.
[262] Movsisyan GS. Effect of day length on the activity of auxin and inhibitors in the roots of buckwheat. Works Inst Bot Arm SSR. 1977; 20: 61-7.
[263] Konstantinova TN, Aksenova NP, Sergeeva LI, Chailakhyan MKh. Interaction of light and phytohormones in regulation of morphogenetic processes in the in vitro culture. Fiziologiia rasteniy. 1987;34(4):795-802.
[264] Karnachuk RA, Protasova NI, Golovatskaya IF. Plant growth and hormone levels, depending on the spectral composition of light. Growth and plant resistance. Novosibirsk, 1988: 71-81.
[265] Saugy M, Mayor G, Pilet PE. Endogenous ABA in Growing Maize Roots: Light Effects. Plant Physiol. 1989;89(2):622-7.
[266] Borisova TA, Mahachkova I, Kefeli VI. Effect of light on the growth characteristics and phytohormone seedlings genetically distinct forms of wheat. Dokl Ross Akad Nauk. 1993; 332(6):797-8.
[267] Petrovskaya-Baranova TP. Physiology adaptation and introduction of plants. M .: Nauka, 1983. 152 p.
[268] Kuiper D, Kuiper PJC, Lambers H, Schuit J, Staal M. Cytokinin concentration in relation to mineral nutrition and benzyladenine treatment in Plantago major ssp. pleiosperma. Physiol Plant. 1989;75(4):511–7.
[269] Barlow PW. The hierarchical organization of plants and the transfer of information during their development. Post biol Komerki. 1987; 14(2): 68-81,