pollen sac
- pollen sac的基本解释
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花粉囊
- 更多网络例句与pollen sac相关的网络例句 [注：此内容来源于网络，仅供参考]
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Pollen sac A chamber in which the pollen is formed in the angiosperms and conifers.
花粉囊：在被子植物和针叶类中形成花粉的小室。
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The pollen and embryo sac fertility were controlled by two sets of different genes, and both of them made contributions to F〓 spikelet fertility.
花粉育性和胚囊育性分别出不同的遗传基因控制，两者共同决定小穗育性的高低。
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Stomia The site at which a sporangium or pollen sac ruptures to release the spores or pollen.
裂口：孢子囊或花粉囊的开裂位置，小孢子或花粉粒从中散出。
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In third stage,at maturing of the embryo sac,pollen tubes grow directionally toward micropyle into embryo sac.
然而由于技术上存在困难，有关花粉管活体状态下生长的研究很少[1]。
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The capacity of dehiscent anther was determined to the size and the morpha of anther stomium cell, epidermal cell and fibrous stratum's plastic property of the pollen sac wall.
成熟花药开裂的能力与花药裂口细胞的大小、形态有关，同时又与成熟花粉囊壁的表皮细胞和纤维层细胞的可塑性结构功能有关。
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pollen sac：花粉囊
每一花药通常由4个或2个花粉囊(pollen sac)组成,左右对称分开,中间以药隔(connective)相连. 花粉囊内产生许多花粉粒(pollen grain). 花粉成熟后,花粉囊裂开花粉粒散出. 总体概况 雄蕊是花的雄性生殖器官,