endothecium
常见例句
- At the time of pre-dehiscence, the epidermal and endothecium are still intact.
花药开裂前,表皮及内壁层仍保持完整。 - The anther wall is composed of four layers: epidermis, endothecium, middle layer and tapetum.
巨龙竹的花药壁由4层结构组成,包括表皮、药室内壁、中层、绒毡层; - Anatomical observation showed that anther wall browning took place mainly in epidermis and endothecium.
结果表明:药壁褐变主要发生在表皮与药室内壁。 - The anther wall consist of an epidermis, one endothecium, 1 to 2 middle layer and 1 to 2 tapetum in December.
花药壁层由一层表皮层,一层内壁层,一或二层中间层,一或二层营养层所构成。 - The endothecium and epidermis persist.Cytokinesis in the microsporocyte meiosis is simultaneous type and the microspore teads are tetrahedral.
药室内壁纤维状加厚;药壁表皮宿存.;小孢子母细胞减数分裂为同时型; - At the late microspore stage, the degeneration of the tapetal cell begins, and the thickening of the endothecium cell wall by callose happens.
小孢子晚期,绒毡层细胞开始解体,药室内壁细胞开始加厚,其加厚的物质为胼胝质类物质。 返回 endothecium