Summary
Cells of the young embryo contain highly differentiated organelles. During maturation and dehydration, complexity is reduced, the many layers of endoplasmic reticulum associated with electron lucent bodies become reduced to a few residual crescents, lipid droplets distributed in the cytoplasm migrate to and become closely appressed to the plasmalemma, mitochondrial cristae are reduced in number and dictyosomes are compacted.
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References
Abdul-Baki, A., Baker, J. E.: Changes in respiration and cyanide sensitivity of the barley floret during development and maturation. Plant Physiol. 45, 698–702 (1970).
Bain, J. M., Mercer, F. V.: Subcellular organization of the developing cotyledons of Pisum sativum L. Aust. J. biol. Sci. 19, 49–67 (1966).
Berjak, P.: A lysosome-like organelle in the root cap of Zea mays. J. Ultrastruct. Res. 27, 233–242 (1968).
Berjak, P., Villiers, T. A.: Ageing in plant embryos. I. The establishment of the sequence of development of senescence in the root cap during germination. New Phytol. 69, 929–938 (1970).
Durzan, D. J., Mia, A. J., Ramaian, P. K.: The metabolism and subcellular organization of the jack pine embryo (Pinus banksiana) during germination. Canad. J. Bot. 49, 927–938 (1971).
Fisher, D. B.: Cotton embryogenesis: Double fertilization. Phytomorphology 17, 261–269 (1967).
Frey-Wyssling, A., Grieshaber, E., Müllethaler, K.: Origin of spherosomes in plant cells. J. Ultrastruct. Res. 8, 506–516 (1963).
Horner, H. T., Jr., Arnott, H. J.: A histochemical and ultrastructural study of pre and post germianted Yucca seeds. Bot. Gaz. 127, 48–64 (1966).
Jensen, W. A.: The ultrastructure and composition of the egg and central cell of cotton. Amer. J. Bot. 52, 781–797 (1965).
Marinos, N. G.: Embryogenesis of the Pea (Pisum sativum). I. The cytological environment of the developing embryo. Protoplasma 70, 261–279 (1970).
Mollenhauer, H. H., Totten, C.: Studies on seeds. II. Origin and degradation of lipid vesicles in pea and bean cotyledons. J. Cell Biol. 48, 395–405 (1971).
Perner, E.: Electronenmikroskopische Untersuchungen an Zellen von Embryonen in Zustand völliger Samenruhe. I. Mitt.: Die zellulare Strukturordnung in der Radicula lufttrockener Samen von Pisum sativum. Planta (Berl.) 65, 334–357 (1965).
Reynolds, E. S.: The use of lead citrate at high pH as an electron opaque stain in electron microscopy. J. Cell Biol. 17, 208–213 (1963).
Schulz, Sister Richardis, Jensen, W. A.: Capsella Embryogenesis: The early embryo J. Ultrastruct Res. 22, 376–392 (1968).
Yoo, B. Y.: Ultrastructural changes in cells of pea embryos and radicles during germination. J. Cell Biol. 45, 158–171 (1970).
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Hallam, N.D. Embryogenesis and germination in rye (Secale cereale L.). Planta 104, 157–166 (1972). https://doi.org/10.1007/BF00386992
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DOI: https://doi.org/10.1007/BF00386992