Abstract
Evolution has favored the establishment, in Phanerogams, of a propagation and survival organ, the seed; this contains, in a resting state, the embryo, a young plant which resumes growth and differentiation at seed germination. The embryo shows a variety of developmental patterns and may attain, at seed maturity, different sizes and degrees of differentiations. The fully developed embryo commonly consists of an axis bearing one or more cotyledons and, at its opposite ends, the primordium of the root and the primordium of the shoot. The root and shoot primordia vary in degree of differentiation from simple apical meristems to embryonic organs: the embryonic root -or radicle-and the embryonic shoot -or plumule- with one or more leaf primordia. In the grass family, the highly differentiated embryos also bears the primordia of adventitious roots.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Alfert, M., and Geschwind, I.I.(1953) A selective staining method for the basic proteins of cell nuclei. Proc. Natl. Acad. Sci. 39: 991–999.
Avanzi, S., Brunori, A., and D’Amato, F. (1969) Sequential development of meristems in the embryo of Triticum durum. A DNA autoradiographic and cytophotometric analysis. Developmental Biol. 20: 368–377.
Avanzi, S., Brunori, A., D’Amato, F., Nuti Ronchi, V., and Scarascia Mugnozza, G. T. (1963) Occurrence of 2C (G1) and 4C (G2) nuclei in the radicle meristems of dry seeds in Triticum durum. Its implications in studies on chromosome breakage and developmental processes. Caryologia 16: 553–558.
Avanzi, S., Brunori, A., and Giorgi, B. (1966) Radiation response of dry seeds in two varieties of Triticum durum. Mutation Res. 3: 426–437.
Bogdanov, Y. F., and Jordansky, A. B. (1964) Autoradiographic investigations of nuclei of root meristem of germinating pea seeds with the employment of H3-thymidine. Zh. Obshch. Biol. 25: 357–363.
Bogdanov, Y. F., Liapunova, N. A., and Sherudilo, A.I. (1967) Cell population in pea embryos and root tip meristem. Microphotometric and autoradiographic studies. Tsitologia 9: 569–576.
Brunori, A. (1967) Relationship between DNA synthesis and water content during ripening of Vicia faba seed. Caryologia 20: 333–338.
Brunori, A., and Ancora, G. (1968) The DNA content of nuclei in the embryonic root apices of Allium cepa and their radiation response. Caryologia 21: 261–269.
Brunori, A., Avanzi, S., and D’Amato, F. (1966) Chromatid and chromosome aberrations in irradiated dry seeds of Vicia faba. Mutation Res. 3: 305–313.
Brunori, A., and D’Amato, F. (1967) The DNA content of nuclei in the embryo of dry seeds of Pinus pinea and Lactuca sativa. Caryologia 20: 153–161.
Brunori, A., Georgieva, J., and D’Amato, F. (1970) Further observation on the X-irradiation response of G1 cells in dry seeds. Mutation Res. 9: 481–487.
Bryant, T. R. (1969) DNA synthesis and cell division in germinating onion. I. Onset of DNA synthesis and mitosis. Caryologia 22: 127–138.
Bryant, T. R. (1969) DNA synthesis and cell division in germinating onion. II. Mitotic cycle and DNA content. Caryologia 22: 139–148.
Caldecott, R. S., and Smith, L. (1952) A study of X-ray induced chromosomal aberrations in barley. Cytologia 17: 224–242.
D’Amato, F. (1964) Nuclear changes and their relationships to histological differentiation. Caryologia 17: 317–325.
D’Amato, F. (1965) Endopolyploidy as a factor in plant tissue development, in ‘Proc. Internatl. Conference on Plant Tissue Culture’ (ed. P. R. White and A. R. Grove), McCutchan Publ. Corp., Berkeley, Calif.: 449-462.
Deitch, A. D. (1955) Microspectrophotometric study of the binding of the anionic dye, naphtol yellow S, by tissue sections and purified proteins. Lab. Invest. 4: 324–351.
Dubinin, N. P., Nemtseva, L. S., and Halikov, P. H. (1971) Radiation induced chromatid aberrations in the G1 phase of Crepis capillaris cells. Caryologia 24: 117–128.
Evans, H. J. (1965) Effects of radiations on meristematic cells. Radiation Eotany 5: 171–182.
Evans, H. J., and Savage, J. R. K. (1963) The relation between DNA synthesis and chromosome structure as resolved by X-ray damage. J. Cell Biol. 18: 525–540.
Grant, C. J. (1965) Chromosome aberrations and the mitotic cycle in Triticum root tips after X-irradiation. Mutation Res. 2: 247–262.
Hsu, T. C., Dewey, W. C., and Humphrey, R. M. (1962) Radiosensitivity of cells of Chinese hamster in vitro in relation to the cell cycle. Exptl. Cell Res. 27: 441–452.
Röbbelen, G., and Nirula, S. (1965) Der Replikationzustand der chromosomalen DNS in ruhenden Samen von Haplopappus gracilis. Naturwiss. 52: 649–650.
Sire, M.W., and Nilan, R. A. (1959) The relation of oxygen post-treatment and heterochromatin to X-ray-induced chromosome aberration frequencies in Crepis capillaris. Genetics 44: 124–136.
Stein, O.L., and Quastler, H. (1963) The use of tritiated thymidine in the study of tissue activation during germination in Zea mays. Amer. J. Bot. 50: 1000–1011.
Van’t Hof, J. (1968) Control of cell progression through the mitotic cycle by carbohydrate provision. I. Regulation of cell division in excised plant tissue. J. Cell Biol., 37: 773–778.
Van’t Hof, J. (1970) Metabolism and the prolonged retention of cells in the G1 and S period of the mitotic cycle of cultured pea roots. Exptl. Cell Res. 61: 173–182.
Wangenheim, K. H., and Walther, F. (1968) Strahlenbiologische Untersuchungen an Getreidearten. II. Unterschiedliche Strahlensensibilität bei gleichem Kernvolumen und DNA-gehalt. Radiation Botany 8: 251–258.
Wolff, S., and Luippold, H. E. (1964) Chromosome splitting as revealed by combined X-ray and labelling experiments. Exptl. Cell Res. 34: 548–556.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1972 Plenum Press, New York
About this chapter
Cite this chapter
D’Amato, F. (1972). Morphogenetic Aspects of the Development of Meristems in Seed Embryos. In: Miller, M.W., Kuehnert, C.C. (eds) The Dynamics of Meristem Cell Populations. Advances in Experimental Medicine and Biology, vol 18. Springer, Boston, MA. https://doi.org/10.1007/978-1-4684-3207-7_9
Download citation
DOI: https://doi.org/10.1007/978-1-4684-3207-7_9
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4684-3209-1
Online ISBN: 978-1-4684-3207-7
eBook Packages: Springer Book Archive