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- The meiosis process of pollen mother cell in hemp were basically normal, and cytoplasm divided simultaneity. 供试材料减数分裂染色体行为表现正常,胞质分裂为同时型;
- 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。
- Abstract Within the rice anther, meiosis of the pollen mother cell produces microspores, which further develop into pollen grains. 摘要 水稻的小孢子母细胞在花粉囊中进行减数分裂产生小孢子, 小孢子进一步发育成花粉粒。
- The results showed that the meiosis behavior of pollen mother cell of sterile is normal.Abortion occurred after formation of tetrads. 结果表明,不育株花粉母细胞减数分裂染色体行为未见异常,败育发生在四分小孢子形成之后。
- The meiosis behavior of pollen mother cell and development of anther and microspore of genetic male sterile (NMS) pepper were observed. 摘要以甜椒雄性不育两用系为试材,对不育株与可育株花粉母细胞减数分裂过程中染色体行为、花药和小孢子发育过程进行了研究。
- It took 2-3 days from pollen mother cell to binary, 24 hours from binary to tetrad, and 3 days from tetrad to grains of pollen. 从花粉母细胞到二分体经过2-3天时间,二分体到四分体约24小时,四分体到花粉粒约3天左右。
- The lagging chromosome,chromatid bridge and multivalent were observed in meiosis of pollen mother cell of amphidioploid . 四分体阶段有微核和不同类型的四分孢子群。
- Chromosome 12 of pollen mother cell of japonica trisomic rice (Oryza sativa L.) was successfully isolated using microglassneedles under the micromanipulator in this study. 首次以粳稻第12号三体为材料,采用玻璃针染色体微分离法,成功地分离到了水稻第12号染色体。
- The chromosome behavior of pollen mother cell (PMCs) in meiosis was investigated in hybrid F1, homeologous chromosome pairing between wheat and rye occurred in 22.9% of PMC. 实验中对杂种F1代植株减数分裂各时期的花粉母细胞染色体行为进行分析,结果发现有22.;91%25的花粉母细胞中黑麦染色体与小麦染色体发生同祖配对。
- Petunia cultivar Menghuan was used to observe the meiosis of pollen mother cell and formation of male gametophyte.The results showed that: seven rod or ring bivalents could be observed in diakinesis. 摘要以矮牵牛品种梦幻为材料,对花粉母细胞减数分裂和雄配子形成进行细胞学观察,结果表明:终变期有7个二价体,有棒状和环状构型。
- Fertility was sensitive to temperature in the forth young panicle development stage i.e. fertility was sensitive lo temperature from stamen and pistil formation stage to pollen mother cell stage. 育性温度敏感期为幼穗分化第四期(雌雄蕊形成期至花粉母细胞形成期);在相同低温的条件下,短日处理的光温敏核不育系的不育度大大降低。
- Global or filament actin was visualized in cytoplasm and nucleus of tobacco pollen mother cells, under immunoelectron microscope. 免疫电镜观察发现,花粉母细胞中的细胞质及核中存在线状和粒状的肌动蛋白微丝。
- In this paper,the meiotic behavior of pollen mother cells of cultivated variety of P.rockii is first reported. 首次对紫斑牡丹栽培品种的花粉母细胞减数分裂过程进行了系统研究。
- Preliminary Studies on the Relationship Between Meiosis of Pollen Mother Cells and Pollen Abortion of Aloe arboresens Mill. 木立芦荟小孢子母细胞减数分裂与花粉育性关系的初步研究。
- Pollen mother cells undergo meioses through simultaneous cytokinesis and give rise to tetrads of microspores, which are tetrahedrally arranged. 花粉母细胞行减数分裂,细胞质分裂属同时型,产生小孢子四分体,为四面体形。
- The chromosome variation in meiosis may cause a part of pollen mother cells to abort, but it is not the main cause of abortion. 花粉母细胞减数分裂过程染色体异常可以引起部分花粉败育,但不是该变异体败育的主要原因。
- Pollen mother cells undergo meioses through simultaneous cytokinesis and give rise to tetrads of microspores, which are mostly terahedrally arranged. 花粉母细胞减数分裂,同时地细胞质分裂,产生四分体小孢子,多排成四面体。
- After implantation of N~+ ion with 30kev/amu into cotton seed, the cytolo-gical effects on plumule cells and pollen mother cells in M_1 were analysed. 本文分析了N~+离子注入棉子后,其胚芽细胞和当代植株花粉母细胞的细胞学效应。
- Pollen mother cells(PMC)meiosis and relevant parameters of diploid and autotetraploid broccoli were studied comparatively. 观察二、四倍体青花菜花粉母细胞减数分裂过程并对分裂各时期参数进行统计分析。