子囊孢子:先是生殖菌丝产生造囊器与雄器,接着雄器的核及细胞质自受精丝进入造囊器,进行质配与核配,然后造囊器产生造囊丝形成子囊,核配后经三次分裂,形成八个核,每核形成一个孢子,原在造囊器下面的细胞产生许多菌丝,将产囊器包围形成子囊果.子囊果的形态大小随种而异,有三种类型:闭囊壳,子囊果为完全封闭式呈圆球形;子囊壳,子囊果有孔;子囊盘,子囊果呈盘状.子囊成熟释放出子囊孢子.
n. spermary ; antheridium
misc. antherid
...ew species, oogonium, antheridium, oospore, molecularly phylogenetic tree [gap=432]关键词:腐霉属,新种,藏卵器,雄器,卵孢子,分子系统发育树 ...
基于500个网页-相关网页
... 祇有雄花的 androecious(Uexkull-Syllenband 1901) 雄蕊群;雄器 androecium(Rocper); stamens 纯雄植物;纯雄体 androecy ...
基于1个网页-相关网页
... 祇有雄花的 androecious(Uexkull-Syllenband 1901) 雄蕊群;雄器 androecium(Rocper); stamens 纯雄植物;纯雄体 androecy ...
基于1个网页-相关网页
·2,447,543篇论文数据,部分数据来源于NoteExpress
雌老鼠,神经元所具有的CRF接受器比雄老鼠更为紧密地受到激素的约束,因此对CRF的反应也就比较大。
In female rats, neurons had receptors for CRF that bound more tightly to the hormone than in male rats, and so were more responsive to CRF.
工程学教授、该项目的实验室工作负责人宫崎文雄说:“你不用手就能启动播放器。”
"You are able to operate the devices without using your hands," said Fumio Miyazaki, an engineering science professor who heads the laboratory working on the project.
他还以翁翁叫的蜜蜂为原型发明了微型“雄峰”飞行器,它同样能实施监视任务。这个飞行器只有六英寸翼展(15cm),还内置了一个摄象机。
Spying could be done, too, with the tiny "drones" he invented, based on bumble bees, with a six-inch (15cm) wingspan and video cameras inside them.
应用推荐