查询词典 pollen

In this study, in order to examine the dynamics of tip [Ca2+]i together with the dynamics of tip-localized F-actin in vivo, a kind of double labeled material was constructed. The Ca2+ and actin microfilaments of Arabidopsis pollen tubes were labeled by cameleon and GFP-mTalin respectively.

本研究以拟南芥花粉管为材料，通过转基因技术，将分别标记Ca~(2+)和微丝的两种荧光蛋白cameleon与GFP-mTalin在花粉管中同时表达，实现活体花粉管中Ca~(2+)与微丝的同时标记。

Cryptogams 3,000, fungi 9,000, and an extensive collection of pollen.

菌类，并且延伸到花粉的收藏。

Cycads and ginkgo have motile sperm, unlike gnetophytes and conifers, which produce pollen.

苏铁和银杏具活动精子可区别于买麻藤和松柏类，它们不产生花粉。

Warm, sunny, dry days are usually the ones with the greatest pollen, Demain said.

原文如此温暖、阳光充足、干燥的天气通常有着最高水平的花粉，德美恩说。

The present paper for the first time describes the SEM morphologic features of the pollen of the samples from 10 demes (including7species in2subgenera).

首次报道了绞股蓝属（GynostemmaBl。）2亚属7种10居群样品花粉在扫描电镜下的形态特征。

Hazel leaves are characterized by tuft domatia and pubescent veins but pollen abundance was relatively low.

榛叶的特点是绺多马IA和青春期的静脉，但花粉丰度相对较低。

Pollen exine ultrastructure were compared for 18 populations growing under in the same environment by means of scanning electron microscope.

借助扫描电镜对栽培在同一生境下的18个半夏居群的花粉形态、大小及表面纹饰等特征进行观测比较。

Pollen morphology is remarkably diverse, particularly in aperture and exine ornamentation.

花粉形态特征，特别是在萌发孔和外壁纹饰上表现出多样化。

The structure of pollen wall provides many characteristics for systematic botany, among which the stratification, struture and ornamentation of exine is basel.

花粉壁的构造提供了若干在系统发育上有用的特征，其中外壁的层次、结构以及纹饰是基本的。

However, differences exist in pollen size, aperture, exine thickness and ornamentation.

但在花粉大小、萌发孔形状、外壁厚度以及表面纹饰等方面存在差异。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。