珠心

n.nucellus; kernel

网络释义

n.1.nucellus2.kernel

1.nucellus 珠围翠绕〖 richlyornamented〗 珠心〖 nucellus〗 珠玉〖 pearlsandjades;jewelry;gems〗 ...

2.kernel 秃疮〔癣〕，脓癣 kerion 核仁，珠心 kernel 角膜样的，角质状的 keroid ...

1.A minute structure in seed plants, containing the embryo sac and surrounded by the nucellus, that develops into a seed after fertipzation.种子植物的一个小的结构，含有胚囊并被珠心所包围，施肥后长成种子。

2.were filled with endosperms, the embryos began to develop quickly and continued until the ripening of the fruit.当胚乳充满珠心组织时，胚开始迅速发育并—直持续到果实成熟。

3.A female gametophyte of the female gametophyte in the sporangium ovule is the heart of the beads.产生雌配子的雌配子体在大孢子囊即胚珠的珠心处发育。

4.Cell walls were getting thick in nucellus cells near the female gametophyte and polysaccharides accumulated abnormally. 2.另外不育系胚珠珠心组织细胞异常加厚，多糖物质出现异常积累。

5.The result indicated that the corn is an anatropous ovule, thick nucellus embryo sac.结果表明玉米是倒生胚珠，厚珠心胚囊。

6.The tube nucleus disintegrates as the pollen tube penetrates the nucellus .另外的粉管核会在花粉管穿过珠心时发生分裂。

7.integument A layer surrounding the nucellus in the ovules of gymnosperms and angiosperms.是裸子植物和被子植物的胚珠中包裹珠心的结构。

8.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。

9.In the second year, the resting pollen tube revives its activity in the nucellus towards the March.第二年三月，休眠的花粉管在珠心内恢复活动，四月形成二个不等的雄配子。

10.Programmed Cell Death of the Nucellar Cells in Ginkgo biloba L.银杏珠心组织的细胞程序化死亡。