megaspore是什么意思
网络释义:大孢子
megaspore怎么读(音标发音)
megaspore例句及用法
1 . The gametophyte is derived from the product of a reduction division in the megaspore mother cell.
该配子体是由大孢子母细胞进行减数分裂而来.
来自辞典例句
2 . A single archesporium differentiates immediately below the nucellar epidermis, it functions directly 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.
来自互联网
3 . Megaspore tetrad is linear. The chalazal megaspore develops into an embryo sac of Polygonum type.
大孢子四分体为线形, 合点端功能大孢子发育成为蓼型胚囊.
来自互联网
4 . The functional megaspore in the linear tetrad is the one endsac is the polygonum type.
大孢子四分体为直线型、少数为“T”型排列,合点端的一个为功能性大孢子.
来自互联网
5 . As development goes on, callose fluorescence disappears in the chalazal wall of diplosporous functional megaspore .
二倍体功能大孢子的合点端细胞壁内的胼胝质荧光消失.
来自互联网
1.大孢子同macrospore:①四个单倍体孢子之一,通常较微孢子为大,在大孢子囊内从大孢子母细胞形成,并由此而形成大配子体或雌性配子体
2.②大分生孢子
1.大孢子
2. 又称 :大孢子(macrospore )
1.大孢子
1 . 大孢子
...大孢子编辑大孢子(megaspore)孢子有大小两型其大形者称为大孢子、产生于大孢子囊中、在蕨类植物,大孢子萌发后成退化的雌性原叶体、另外,被子植物及裸子植目录1大孢子megaspore2晚古生代大孢子研究取得新进展.
megaspore相关短语搭配
1 . 大孢子壁
megashear 巨大切变带megaspore membrane 大孢子壁megaspore 大孢子
1 . 存活胚囊
germinate pollen grain使花粉粒生长surviving megaspore存活胚囊- 基于2个网页
1 . 大孢子吸器
megaphyllous 巨型叶的megaspore haustorium 大孢子吸器megaspore mother cell 大孢子母细胞
1 . 功能大孢子
plasmodesmata in the chalazal end wall as a site for symplastic transportation between nucellar cells and embryo sac only appear in functional megaspore and 1-nucleate embryo sac at early stage .在功能大孢子及单核胚囊早期是通过合点端的胞间连丝与珠心细胞以共质体形式相通;