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- nucellar perisperm 珠心外胚乳
- Embryo planospiral;perisperm scant, glutinous. 胚平面螺旋状外胚乳不够，黏。
- 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。
- The perisperm cells with flat walls are full of starch grains. 外胚乳细胞壁平直，细胞内充满淀粉。
- The nucellar epidermal cell cuts off several layer mucellar parietal cells. 珠心表皮细胞平周分裂产生多层珠心周缘细胞，为厚珠心。
- Activation of nucellar cells by discharge from the pollen tubes has been claimed. 认为由花粉管的流出物能使珠心细胞活化。
- 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。
- The perisperm cells are elongated rectangularity, squareshaped or polygon full of starch grains. 外胚乳细胞长条形、方形或多边形，细胞内充满淀粉；
- The nucellar embryo had a suspensor,its development passed through the similiar stages of the zygotic embryo. 珠心胚发育经历与合子胚相同的发育阶段。
- Firstly, several layers of the nucellar cells at the micropylar end elongate longitudinally. 接着,位于珠心组织最上部(珠孔端)的珠心细胞启始死亡;
- Seed red-brown, sublustrous, lenticular, 2-3 mm in diam.;perisperm farinaceous.Fl. 种子红棕色，近有光泽的，透镜状，2-3毫米直径；
- Cameron J.W., and R.K. Soost. Nucellar lines of citrus, calif. Agr, 1953, 7(1):8,15,16. 周林杰.;我省研制出廉价的无土栽培基质[J]
- Ultimately, nucellar cells digested away all of their cytoplasm, leaving with cell walls. 出现由膜包围的小体,其中含有细胞质基质和一些细胞器;
- SSR( simple sequence repeat) analyses with13 primers indicated that these tetraploid seedlings were all autotetraploid from the nucellar cells. 采用13对ssr引物分析表明这7株四倍体植株均来自珠心细胞,为同源四倍体。
- A single archesporium differentiates immediately below the nucellar epidermis,it functions directly as the megaspore mother cell. 孢原细胞处于珠心表皮之下，直接起大孢子母细胞的功能。
- Among the, five survived seedlings germinating from pale yellow green embryos, four of them are zygotic and the other one is nucellar. 黄绿色胚所萌发之幼苗，其特徵与四季桔相同，为珠心胚；淡黄绿色胚甚少，成活的五株中，四株为有性胚。
- The early stage of pollen chamber development in ovule and the cytological mechanism of nucellar cell death were studied in Ginkgo biloba L. 对银杏(Ginkgo biloba L.;)胚珠贮粉室的早期发育过程以及珠心细胞死亡的细胞学机制进行了研究
- The main abnormality in the mature embryo sac was single central cell(7.1%) and nucellar cells invaded embryo sac(7.1%). 6. 最显著的异常是珠心组织侵入胚囊及极核的异常（1个极核），比例均为7.;1%25。
- The one megaspore archesporial under the nucellar epidermal cell differentiate directly into megaspore mother cell, the meiosis of megaspore mother cell are nomally. 大孢子孢原细胞在直接发育为大孢子母细胞，大孢子母细胞减数分裂正常，四分体直线型；
- Developing endosperm is of the nucellar type. In late July, mature seeds contain very less endosperm and a big embryo with 2 massive cotyledons,the hypocotyl and the radicle. 胚乳之发育为核型。约在7月下旬，成熟种子只具有非常微量之胚乳，以及两枚子叶、胚轴及胚根。
