The microspore lacks a large central vacuole.
小孢子缺中央大液泡。
Shrink of cytoplasm at stage of central nucleus microspore. 21.
单核中央期小孢子细胞质收缩。
Vacuolation of cytoplasm at stage of central nucleus microspore . 20.
单核中央期小孢子细胞质液泡化。
The best development period for microspore culture is monokaryotic stage;
小孢子离体培养的最佳发育时期是单核期；
The endogenous hormonal ratio was interdependent to the microspore abortion of radish.
可见，萝卜小孢子的败育与内源激素平衡的破坏有关。
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；
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。
Therefore the behavior of vacuome may be the earliest morphological index for microspore abortion.
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。
All the materials microspore embryoid yield had significant improvement under low temperature pretreatment.
供试材料经低温预处理，小孢子胚产量均有明显提高。
The principle and structure of rice microspore microscopy image collection and analysis system are discussed.
文章描述了水稻花粉颗粒显微图像采集与分析系统的原理及结构。
Phenomenon that cytoplasm of late microspore moved directionally and formed cytoplasm bridge was observed clearly.
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 results showed that microspore mother cells and tetrad microspores accumulated numerous lipids but no starches.
结果发现小孢子母细胞和四分体小孢子中积累了一些脂滴，但没有淀粉。
The effects of colchicine on in vitro microspore embryogenesis of Brassica napus were investigated using 23 genotypes.
研究了秋水仙碱不同浓度和处理时间对甘蓝型油菜23个基因型离体小孢子胚胎发生的影响。
The tapetal cells degenerated at microspore stage and its cytoplasm transform into lipids for the microspore absorbing.
最内层的绒毡层细胞在小孢子时期开始解体，细胞质转变为脂滴，供花粉吸收。
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。
The yield of microspore-derived embryoids (No. of embryoids per 100 anthers)varied from 0.11% to 17.62% among varieties.
各品种间小孢子胚产量差别较大，每100枚花药产胚数（诱导率）在0.11%-17.62%之间。
Observation was made on the cell morphology of the microspore development of the sterile and fertile plants in the Aibai wheat.
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。
Tissue culture, such as microspore culture and embryo technique was widely developed in rapeseed breeding and fundamental studies.
小孢子技术、体细胞原生质体融合技术等组织培养手段已广泛应用于油菜育种及基础性研究。
In sterile anthers, abnormal distribution of calcium gran - ules first appeared in callus wall of microspore mother cell (Plate IV-1).
在不育花药中，最早出现的钙颗粒异常分布是在小孢子母细胞的胼胝质壁中积累了较多的钙颗粒。
Through ultra-structure observation, it is found that the microspore of Jin A began to abort at the stage of sporogenous cell division.
小孢子发育的超微结构观察发现，晋A不育系在造孢细胞增殖时期即表现出败育迹象。
It is of great interrelation between cytology growing period of strawberry's microspore and the outside shape and size of flower organ.
草莓小孢子细胞学发育时期与花器外部形态、大小密切相关。
At the late stage of microspore formation, microtubule bundles became thinner and reticulately oriented to form a tightly knitted network.
当小孢子发育至成熟期，细胞内的微管束变得纤细，而网络则变得紧密。
This study focus on selection of disease-resistant restorer lines through two approaches of microspore culture and marker assisted selection.
本研究以小孢子培养和分子标记辅助选择两种途径来选育抗病的恢复系。
In recent 20 years with more studies of rapeseed microspore culture a perfect regenerative system of rapeseed microspore culture has been set up.
近20年，油菜小孢子培养已得到深入的研究，并建立了完善的油菜小孢子再生体系。
The tapetum of P. hortorum belongs to periplasmodial tapetum. The invasion into the locule occurs when microspore form large vacuole in its cytoplasm.
天竺葵的绒毡层属周原质团绒毡层，其原生质体侵入药室的时间发生在小孢子中大液泡开始形成的时期。
The efficiency of regeneration of pollen plants with the pollen embryo inducement in pollen culture is higher greatly than that of isolated microspore culture.
花药培养的花粉胚植株再生率要明显高于游离小孢子培养。
Improving microspores embryogenic ability and plantlet regeneration ability from microspore-derived embryos is the key of isolated microspores culture technique.
胚胎发生能力和再生植株转化率是游离小孢子培养技术的关键问题。
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。
The procedure of isolated microspore culture with higher regeneration was established by the technique optimization and the platform of maize DH breeding was developed.
通过技术优化，建立玉米小孢子离体培养高频再生技术程序，在此基础上构建了玉米dh育种技术平台。
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。
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