WebAug 5, 2024 · The anther is composed of four layers- epidermis, endothecium, middle layer, and tapetum layer. The tapetum is a special cell layer around the pollen sac with a dual or multi-nucleated structure. The cells contain more RNA and protein, as well as nutrients such as oil and carotenoids, which can supply the nutrients required for the … WebBy the time the anther has developed its characteristic four-lobed appearance, five different cell layers are evident. The innermost cells are diploid microsporocytes, identifiable by their large, centrally located nucleus and prominent nucleolus. Surrounding the microsporocytes is a layer of secretory tapetal cells (Fig. 2A), which have ...
Endothecium - Unacademy
WebApr 22, 2011 · The developed anther consists of the meiotic cells (also called microsporocytes) at the center, surrounded by the anther wall with four somatic layers: the epidermis, the endothecium, the middle layer, and the tapetum, from the surface to the interior (Goldberg et al., 1993). WebEach of these will be surrounded by 4 4 4 4 layers - the epidermis, endothecium, middle layers, and innermost tapetum. Tapetal cells have dense cytoplasm, are usually at least binucleate, and nourish developing pollen grains. The other layers act as barriers and … google maps inishowen
Anther and pollen development: A conserved developmental …
WebIn normal anther development in maize (Zea mays L), large hypodermal cells in anther primordia undergo a series of proscribed cell divisions to form an anther containing … WebSolution. The correct option is C. Middle layers. Anther is the male reproductive part of a flower. It is the anther which produces the male gametophyte or pollen grain by reduction division of sporogenous cells. The sporogenous cells in the anther are protected by multilayered protective tissues which constitute the anther wall. WebEpithelium or epithelial tissue is one of the four basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue.It is a thin, continuous, protective … chi chi goten and trunks fan fiction