Somaclonal variation breeding was a new applicable method of cell engineering under breeding after pollen and anther culture.
体细胞无性系变异是继花粉和花药培养之后的又一种实用化的细胞工程育种新方法。
The sensitive phase of fertility alteration of D18 and D23 occurred from the second branch differentiation phase to pollen mother cell formation.
水稻光温敏核不育系d 18和D23的育性转换的敏感期是第二次枝梗分化期到花粉母细胞形成期。
Combining cell morphology, the growth and decline state of tapetum in anther wall tissue are closely related with pollen fertility and amino acid metabolism.
结合细胞形态学观察，药壁组织的绒毡层的发育与解体状况和花粉育性、氨基酸代谢有着密切关系。
As a possible peptide primary messenger, extracellular calmodulin (CaM) may regulate processes such as cell proliferation, pollen germination and expression of some genes.
细胞外钙调素可能作为多肽第一信使，调节细胞增殖、花粉萌发、特定基因表达等生理过程。
The explosive reactions are activated when an allergen (such as pollen particles) binds to receptors on the surface of the mast cell, which then opens and secretes part of its contents.
当变应原(例如花粉微粒)粘附到肥大细胞表面受体后，将引发爆炸反应，肥大细胞裂开并且分泌出部分内含物。
The soluble protein content in spikelet of Zhenshan 97a of cytoplasmic male sterile rice decreased rapidly after the formation stage of pollen mother cell (PMC).
水稻细胞质雄性不育系珍汕97a，在花粉母细胞形成期以后可溶性蛋白含量迅速降低。
There was no report on plant pollen development using cell cycle genes, which could influence the growth of plant.
细胞周期基因是一类对植物生长发育有重要影响的功能基因，但它们对植物花粉发育形成的影响还很少研究。
So were chromosomal deficiency or reproduction, and unequal division in the period of pollen mother cell.
花粉母细胞染色体数不恒定，后期两极染色体数分配不均等。
The process of pollen tube growth involves many aspects, especially the synthesis of cell wall and the cytoplasmic movements.
花粉管的生长过程包括许多方面，其中最为重要的是花粉管细胞壁的合成和胞质运动。
New productive technique should be improved in practice in order to meet the demand of producing high-quality bee cell pollen.
新的生产技术在实践中不断改进生产措施，便于养蜂者操作，生产优质高产的蜂房花粉。
But it is difficult to collect bee cell pollen because of being locked in the bee's comb at present.
但蜂房花粉被牢固的贮存在蜜蜂巢房里，采收困难。
After entering the pollen tube, the generative cell approached the vegetative nucleus before long and sticked each other.
当生殖细胞进人花粉管后，在较短的时间内接近营养核，并与其相贴合。
The mature pollen grain is of 2-cell.
成熟花粉为二细胞型。
Objective: To determine flavonoids content in rape bee pollen by HPLC and analyze the effects of six cell wall-breaking techniques on flavonoids extraction from rape bee pollen.
目的：六种破壁方法处理油菜蜂花粉，运用HPLC测定花粉中的黄酮含量，研究不同破壁方法对黄酮提取的影响。
Objective: To determine flavonoids content in rape bee pollen by HPLC and analyze the effects of six cell wall-breaking techniques on flavonoids extraction from rape bee pollen.
目的：六种破壁方法处理油菜蜂花粉，运用HPLC测定花粉中的黄酮含量，研究不同破壁方法对黄酮提取的影响。
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