nucellus的例句大全

The nucellus is usually degraded and absorbed as the endosperm develops.

珠心通常在胚乳发育时被分解和吸收.

The ovule is bitegminous archesporial cell locates under the nucellus epidermis, which develops into functional megasporocyte.

孢原细胞位于珠心表皮之下, 直接起大孢子母细胞的功能.

The cells of the integument and nucellus of some plants form perfectly normal embryos.

某些植物的珠被和珠心细胞形成完全正常的胚.

Food materials may be stored in a special tissue derived from the nucellus, called the perisperm.

营养物质可以贮藏于由珠心产生的一种特殊组织, 叫外胚乳.

There are many wall ingrowths in the boundary wall between endosperm and degenerated nucellus, which is benefit to the material transport from degenerated nucellus to endosperm.

胚乳与珠心组织分界壁-胚囊壁上有发达的壁内突，有利于珠心组织内的物质向胚乳内转运；

Chalaza ( pl . chalaxae or chalazas ) The region of an angiosperm ovule where the nucellus and integuments merge.

合点 :被子植物胚珠上的一个区域,在合点处珠心和珠被愈合.

Embryological observation of ovary culture shows that haploid plants are from megaspore tetrad, while diploid plants are probably from nucellus cell.

同时在珠心细胞中观察到旺盛的分裂活动和细胞团的形成，这可能是二倍体植株的来源。

However, the nucellus cells at the chalaza end split and reproduce, which results in the appearance of an expanded apophysis that keeps its shape until the seed becomes mature during the development process of the fruit in the coming year.

而合点端的珠心细胞不断分裂增值，在来年的果实发育过程中，形成一球状的膨大突起并保持到种子成熟。

The pistil shape structure of the almond is: Wet column cap, style solid, ovary 1 room, the basal placenta, overflowing-ovule, pairs of integuments, thick nucellus, having obturator.

扁桃雌蕊形态结构为：湿型柱头，花柱实心，子房1室，基生胎座，横生胚珠，双珠被，厚珠心，有珠孔塞。

The female archesporium differentiates from many cells under the subhypodermis of nucellus.

雌性孢原为珠心亚表皮下多细胞。

The result were as follows: The embryonic development began in the nucellus tissue from a archesporium cell which would divide to a sporogenous cell and a parietal cell.

结果表明：锥栗胚胎发育始于珠心组织中的一枚孢原细胞。