Special Section: Embryology of Flowering Plants
نویسندگان
چکیده
A combination of environmental factors and endogenous cues trigger floral meristem initiation on the flanks of the shoot meristem. A plethora of regulatory genes have been implicated in this process. They function either as activators or as repressors of floral initiation. This review describes the mode of their action in a regulatory network that ensures the correct temporal and spatial control of floral meristem specification, its maintenance and determinate development.
منابع مشابه
Special Section: Embryology of Flowering Plants
P. Maheshwari who served as Professor and Head of the Department of Botany, University of Delhi from 1950 to 1966 built a flourishing school of embryology which became internationally recognized. His colleagues and students have contributed significantly to all areas of embryology through integrative approaches. In memory of his birth centenary year, we have prepared this article that summarize...
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Sexual reproduction in higher plants requires the development of a special cell protrusion, the so-called pollen tube, which is generated by the male gametophyte. Like other plant cells, the pollen tube contains a conspicuous cytoskeletal apparatus that regulates and promotes most of its biological functions, the most important of which is the transport of sperm cells. The study of the pollen t...
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Androgenesis in flowering plants is a unique biological process. It provides an understanding of the biological basis of single-cell microspore embryogenesis to the production of a dihaploid plant. This system provides an unparalleled opportunity to shorten the breeding cycle and fix agronomic traits in the homozygous state, such as recessive genes for disease resistance. The most desirable dih...
متن کاملSpecial Section: Embryology of Flowering Plants
The plant life cycle alternates between the diploid sporophyte (spore-producing organism) and the haploid gametophyte (gamete-producing organism). The female gametophyte of flowering plants develops within the ovule, a specialized structure within the ovary, which gives rise to the seed after fertilization. The female gametophyte, or embryo sac, contains a small number of clonally derived cell ...
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