1) 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。
2) 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 & female-gametophyte
雌雄配子体发生
5) gametophyte development
配子体发育
1.
Observation on gametophyte development of Cibotium barometz;
重点保护药用植物金毛狗配子体发育过程的研究
2.
Allelopathic effects of Eupatorium adenophorum on spore germination and gametophyte development in Cibotium barometz;
紫茎泽兰对金毛狗孢子萌发和配子体发育的化感作用
3.
Observation on the gametophyte development of Macrothelypteris torresiana;
普通针毛蕨配子体发育的研究
6) Gametophytic development
配子体发育
1.
Effects of light, temperature and pH on spore germination and early gametophytic development of Alsophila metteniana
光照、温度和pH值对小黑桫椤孢子萌发及早期配子体发育的影响
2.
Based on these result,the effects of light,temperature and pH on spore germination and early gametophytic development of Cyatheaceae was implemented.
作者在近3年的研究生学习过程中,对桫椤科4植物孢子的外部形态进行扫描电镜分析,并且研究了桫椤(Alsophila spinulosa)、黑桫椤(Alsophilapodophylla)、小黑桫椤(Alsophila metteniana)和大叶黑桫椤(Alsophila gigantea)的孢子繁殖,观察记录了以上蕨类植物的孢子萌发及配子体发育过程。
补充资料：尿道海绵体与阴茎海绵体发育缺损
尿道海绵体与阴茎海绵体发育缺损
病名。 阴茎与尿道先天性畸形之一。属阴茎勃起组织发育不全。可分三度：Ⅰ尿道海绵体局部缺损 造成阴茎部尿道扩大呈囊状憩室，其直抵白膜下，压迫和阻塞尿道；Ⅱ尿 道海绵体缺损较大，形成巨阴茎部尿道，使阴茎在排尿时呈舟状；Ⅲ阴茎海绵体的严重不发 育和尿道海绵体的缺损，使尿道扩大呈梭形。均罕见(见图37)。
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