英汉双语例句-生物医药大词典

Pollen mother cell (PMC) In angiosperms and gymnosperms, a somatic cell that gives rise to four haploid pollen grains by meiosis.

中文意思：
花粉母细胞（PMC）：指在被子植物和裸子植物中，能通过减数分裂产生4个单倍体花粉粒的体细胞。

以下为相关句子列表(点击查看，可以看对应的解释）：

	Pollack, too, was first turned down, but Shashi Tharoor, head of U.N. public information, who read the script, convinced Secretary-General Kofi Annan and others the film would be seen by millions the organization could never reach itself.			悉尼·波拉克刚开始也遭到了同样的拒绝，但是联合国信息事务副秘书长沙希·塔罗尔看过剧本后说服联合国秘书长科菲·安南和其他高级官员说，数百万人可以通过这部电影走近联合国，这是联合国自己办不到的。
	Pollen analysis A means of obtaining information on the composition and extent of past floras and environments by examining fossil pollen grains, spores, and similar structures in peat and sedimentary deposits.			花粉分析：指通过检测花粉化石、孢子以及在泥炭和沉积物中类似的结构，以获得历史上曾有过的植物区系、组分以及分布范围与环境信息的方法。
	Pollen grains are adapted according to the method of pollination, those carried by insects often being sticky or barbed, while wind-pollinated plants generally produce smooth light pollen.			花粉粒与授粉方式相适应，那些虫媒花，花粉通常是粘性的或有刺的，而具有风媒花的植物，其花粉通常光滑而轻。
	Pollen grains are highly variable in size and shape ranging from 5μ to over 200μ in diameter and from circular to tetrahedral or dumbbell shaped.			花粉粒的壁由两层构成，外壁为孢粉素壁，具有很强的抵抗力，其上有特征性雕纹或孔纹。
	Pollen grains are rich in mitochondria, Golgi apparatus, and endoplasmic reticulum.			花粉粒富含线粒体、高尔基体以及内质网上。
	Pollen mother cell (PMC) In angiosperms and gymnosperms, a somatic cell that gives rise to four haploid pollen grains by meiosis.			花粉母细胞（PMC）：指在被子植物和裸子植物中，能通过减数分裂产生4个单倍体花粉粒的体细胞。
	Pollen never deteriorates. It is one of the few naturally secreted su tances that last indefinitely.			花粉永远不会变质，是自然界中少有的几种可以无限期存在的物质之一。
	Pollen never deteriorates. It is one of the few naturally secreted substances that last indefinitely.			花粉永远不会变质，是自然界中少有的几种可以无限期存在的物质之一。
	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。
	Pollen that floats is light and water repellent, and may have a coating of oil that alters the surface tension of the water.			漂浮在水面的花粉非常轻且具有疏水性，其原因可能是花粉表面具有一层油脂使得水的表面张力发生改变。
	Pollen tubes are the polarized tip-growing system that delivers the male gametes towards the ovaries, which is very essential for sexual reproduction in higher plants.			摘要花粉管的极性顶端生长是将雄配子体运输到子房的过程，在高等植物有性生殖过程中起著重要的作用。