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3 wrz 2024 · The endosperm is a tissue found in seeds of flowering plants that provides nourishment to the developing embryo. It is formed from the fertilization of a secondary nucleus by a sperm cell and can vary in structure, including nuclear, cellular, or ruminate types, depending on the plant species.
24 cze 2014 · Its structure and function in the mature dry seed is divergent and specialized among different plant species. A subset of endospermic tissues are composed of living cells even after seed maturation, and play an active role in the regulation of seed germination.
The endosperm is a tissue produced inside the seeds of most of the flowering plants following double fertilization. It is triploid (meaning three chromosome sets per nucleus) in most species, [1] which may be auxin -driven. [2] . It surrounds the embryo and provides nutrition in the form of starch, though it can also contain oils and protein.
Its structure and function in the mature dry seed is divergent and specialized among different plant species. A subset of endospermic tissues are composed of living cells even after seed maturation, and play an active role in the regulation of seed germination.
24 cze 2014 · The endosperm plays an important role in supporting the embryonic growth by supplying nutrients, protecting the embryo, and controlling embryo growth by acting as a mechanical barrier during...
1 sty 2007 · This chapter deals with the mechanisms by which endosperm cell walls arise, with the composition and synthesis of endosperm cell wall polysaccharides, and with their specific functions during seed development and germination.
1 lut 2003 · The endosperm is an essential part of the seed that sustains embryo development and reserve storage. Several genes that are involved in endosperm differentiation and that have domains of expression arranged along a conserved antero–posterior axis have been isolated in Arabidopsis and in cereals.
