Comparative ultrastructural analysis of the in vitro microspore embryoids and in vivo zygotic embryos of wheat as a basis for understanding of cytophysiological aspects of their development

Comparative ultrastructural analysis of the in vitro microspore embryoids and in vivo zygotic... Ultrastructures of in vitro microspore embryoids and in vivo zygotic embryos of spring wheat have been analyzed and compared. Along with the similarity of ultrastructural characteristics of embryoid and embryo cells at the corresponding developmental stages, some differences have been revealed. Unlike embryos, embryoid cells are characterized by lipid inclusions and numerous mitochondria with well-developed internal membranes. According to our hypothesis, lipids represent an alternative energy source required for active cell divisions in the forming embryoids. Unlike embryos, since the earliest developmental stages, embryoid cells accumulate a significant amount of starch and then utilize it during the organogenesis and germination. A conclusion has been made that embryoid cells create their own reserve of carbohydrates, which is then mobilized during their development. The concept of T.B. Batygina (1987, 1997, 2014) about the universal character of the plant morphogenesis in vivo, in situ, and in vitro has been confirmed. The prospects for the use of microspore embryoidogenesis in vitro as a model to study cytophysiological aspects of zygotic embryogenesis in vivo are discussed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Developmental Biology Springer Journals

Comparative ultrastructural analysis of the in vitro microspore embryoids and in vivo zygotic embryos of wheat as a basis for understanding of cytophysiological aspects of their development

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Publisher
Pleiades Publishing
Copyright
Copyright © 2017 by Pleiades Publishing, Inc.
Subject
Life Sciences; Developmental Biology; Animal Anatomy / Morphology / Histology
ISSN
1062-3604
eISSN
1608-3326
D.O.I.
10.1134/S1062360417030109
Publisher site
See Article on Publisher Site

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