microspore
英音[ ˈmaɪkrəʊspɔː ] 美音[ ˈmaɪkroʊˌspɔːr ]

小孢子

常用释义

词性释义

n.

小孢子;(种子植物的)花粉粒
例句
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In theterosporous species, a distinction is usually made between megaspore mother cells and microspore mother cells.
在异型孢子体种类中,可区分为大孢子母细胞和小孢子母细胞。
Observation on microspore abortion of 'White angel was made by means of light microscopy.
对王百合雄性不育突变体‘白天使’小孢子败育的过程进行了显微观察。
明确了脱分化小孢子的发育过程,其显著特点是:核位置改变,细胞质重组。
Microspore mother cells in an anther started but did not end the meiosis at the same time.
小孢子母细胞减数分裂同时开始,但不同时结束,分裂过程高度不同步。
游离小孢子培养技术是获得大白菜单倍体植株的有效途径之一。
供试材料经低温预处理,小孢子胚产量均有明显提高。
从分类、分子进化、分子生物学、化学治疗等方面综述了微孢子虫研究的进展。
二分体、四分体和小孢子时期,细胞内普遍观察到微核,且出现大量异形细胞。
预处理是诱导小麦小孢子胚胎发生的重要方法。
扫描电镜观察结果也显示突变体花药中小孢子外壁异常且有破裂。
When the petal is longer than the calyx, the anther is greenish white or white, most of the microspore is at binucleate stage.
当花瓣微露、萼瓣等长或瓣稍长,花药白色时,大多数小孢子处于单核靠边期;
花药、小孢子体系的建立,促进了单倍体育种的进行,加速了作物育种进程。
However, mechanism of male sterility is very complex, which involved a set of structural and regulative genes in microspore development.
要彻底阐明雄性不育产生的机制,必须分离、克隆出小孢子发育过程中的相关基因,并对其特征特性进行研究。
At the stage of microspore, the tapetal cells evidently degenerated, and starches in parenchyma around vascular bundle became large.
在小孢子时期,药隔薄壁细胞中淀粉粒体积增大,绒毡层细胞明显退化;
液泡系的行为,可能可以作为小孢子败育的最早的形态上的标志。
小孢子母细胞时期和减数分裂前期是对低温最敏感的发育阶段。
清晰观察到晚期小孢子细胞质定向移动形成细胞质桥现象。
The cytokinesis of the microspore mother cells in meiosis is successive and the microspore tetrads are tetrahedral.
小孢子母细胞减数分裂中的胞质分裂为连续型,四分孢子为四面体型;
Embryogenesis via Isolated Microspore Culture of Brassica campestris. Ssp. Chinensis L.
小白菜小孢子培养胚状体的诱导。
The microspore mother cells in meiosis is successive and the microspore tetrads are tetrahedral and bilateral symmetry.
小孢子减数分裂为连续型。四分体呈四面体型和左右对成型。
单核液泡期的小孢子细胞质完全解体。
Successive cytokinesis in the microspore mother cells (MMCs) follows meiosis.
小孢子母细胞减数分裂的胞质分裂为连续型。
ABA was observed to distribute in cytoplasmic matrix and small vacuoles of microspore mother cell.
短日照条件下,花粉母细胞细胞质基质及小液泡内有金颗粒分布;
The two sperm nuclei and the tube nucleus are all derived from a single microspore nucleus by mitosis.
两个精核和管核都是从同一个小孢子核有丝分裂产生的。
Effects of Addition of Activated Charcoal on Microspore Embryogenesis in Brassica napus L .
油菜小孢子培养影响因素及黄籽油菜双单倍体群体的构建。
对矮败小麦中的可育株和不育株进行了小孢子发育过程的细胞形态学观察。
We obtain haploid by isolated microspore culture, and the pure-line is very useful in Purple Flowering Stalks breeding.
利用游离小孢子培养技术获得单倍体,所获纯合系在育种上有较高利用价值。
收缩的小孢子母细胞中核进入减数分裂终变期。
麻疯树小孢子发育的超微结构研究。
收缩的小孢子母细胞质中核进入减数分裂末期。
1·Also, the progresses in researches of barley microspore culture, cell suspension culture, protoplast culture and protoplast fusion are briefly introduced in this paper.
并对大麦小孢子培养,细胞悬浮培养,原生质体培养和原生质体融合研究的最新进展作了简要介绍。
2·Rape have established regeneration system of cotyledons, hypocotyls, protoplasts and microspore culture.
油菜已经建立了子叶、胚轴、原生质体及小孢子培养的再生体系。
3·The ubisch bodies which appeared on the inner tangential wall of the tapetum at the time of microspore wall formation are partially remain on the surface of matured pollen grain.
小孢子壁形成时开始在绒毡层内切线壁出现的球状体到花粉粒成熟时仍有一部分附着于花粉粒表面。
4·The pretreatment with low temperature was beneficial to maintaining microspore vitality.
低温预处理有利于保持小孢子的活力;
5·It is not synchronous highly that the meiosis of pollen mother cells and the development of microspore in the same anther but different pollen sac and in the same anther chamber.
同一花药不同花粉囊相同一药室,花粉母细胞减数分裂和小孢子的发育,并不是高度同步的。