2) male gametophyte development
雄配子体发育
1.
Cytological studies on meiosis and male gametophyte development in cucumber;
黄瓜花粉母细胞减数分裂及其雄配子体发育的细胞学研究
2.
Studies on male gametophyte development of Euphorbia pulcherima;
一品红雄配子体发育研究
3.
The male gametophyte development of autotetraploid radish(2n=4x=36) was examined by Ehrlich s hematoxylin staining-methyl salicylate clearing and is reported for the first time in the paper.
结果表明:同源四倍体萝卜小孢子核经一次有丝分裂产生营养核与生殖核,生殖核再经一次有丝分裂形成两个精核,最终形成3-细胞型成熟花粉,与相应的二倍体雄配子体的整个发育过程相似;四倍体花粉具2个、3个或4个萌发孔,二倍体多为3孔花粉;四倍体雄配子体发育过程中异常频率为32%,比二倍体高20%,败育主要发生在四分体时期和单核期。
3) Development of male gametophyte
雄配子体发育
1.
Ultrastructural studies of microsporogenesis and development of male gametophyte in Paeonia suffruticosa;
牡丹小孢子发生与雄配子体发育的超微结构研究
2.
On the bases of studies on techniques in chromosome preparation, meiotic behaviours of pollen mother cells (PMCs) and development of male gametophyte were observed on autotetraploid and diploid broccoli, which laid bases for genetic breeding of polyploid broccoli.
本论文以同源四倍体青花菜为材料，以二倍体为对照，系统的进行了染色体制片技术、花粉母细胞减数分裂行为及雄配子体发育的研究，为多倍体青花菜的遗传育种奠定理论基础并提供理论指导。
4) Male gamete abortion
雄配子败育
6) gamete fertility
雌雄配子育性
补充资料：膀胱不发育与发育不全
膀胱不发育与发育不全
aplasia and agenesis of bladder
膀胱不发育与发育不全均罕见。膀胱不发育常并发上尿路及其他系统严重畸形，故为死产或生后不久死亡。在女性有因输尿管直接开口于前庭、阴道，呈完全性尿失禁而存活者。膀胱发育不全也多因并发严重畸形于生后不久死亡，若有生存的病例则与双侧单一输尿管口异位问题相似。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条