In the course of present investigation in interspecific hybrid of tritical crops , cytomixis mas observed at microspore stage , the present investigation deals with detailed analysis of this phenomenon at different conditions 作者在麦类远缘杂种的减数分裂过程中发现,在减数分裂的前期和小孢子时期均存在核穿壁的现象,并对各种状态下的穿壁现象进行了详细的观察研究。
The factors to affect anther tissue culture of gourd vegetable crops , genotype , period of microspore ' s growth , environment of material ' s growth , media , carbon sources , plant growth regulators , active carbon and culture conditions were summarized 对影响瓜类蔬菜花药培养的主要因素基因型、小孢子发育时期、材料发育时期生长环境、基本培养基、碳源、激素、活性炭及培养方法中的相关条件进行了综述。
The ultrastructural changes of microspore mother cells and tapetal cells in anthers during the abortion of male sterile cotton " kang a " were observed by comparing with its maintainer " kang b " and by using transmission electron microscopy 摘要以棉花细胞质雄性不育系“抗a ”为材料,以其同核异质保持系“抗b ”为对照,用透射电子显微镜技术,观察了不育系败育过程中小抱子母细胞与绒毡层细胞超微结构的变化。
3 . the development of the anther wall follows the basic type . cytokinesis in the microspore mother cell is of the successive type . the arrangement of microspore in tetrad is tetrahedral . mature pollen grain is of 2 - celled type . the anther has 4 four rooms , accidentally seen six or seven rooms 花药壁的发育为基本型,小孢子减数分裂为连续型,小孢子四分体为四面体型,成熟花粉为二细胞型。花药多为四室,偶见六室和七室。 4
Here we found g proteins also function in leaf , silique development and the yield of pollen microspore . we observed several traits or characters in the offsprings of gpal , agbl null mutation and gpa1 overexpression lines and found that the width of mutants " lamina is larger than that of the wild type , whereas the lamina length , petiole length and rosette diameter is smaller than the wild type , the ga overexpression lines is different from the mutants ; the silique length and the pedicel length is larger in mutants than that of wild type , and slightly smaller in overexpression lines than the control ; the morphometric character in silique tip is different in gpal from agbl mutants ; the yield of pollen microspore is larger in null mutants than wild type whereas smaller in overexpression lines 实验中我们跟踪观察了多代异三聚体g蛋白a亚基超表达转基因植株及a , p亚基缺失突变体的表型特征,发现突变体的叶片宽度大于对应的野生型,叶片长度,叶柄长度及莲座直径小于野生型,而超表达植株的上述某些特征与突变体相反; gp时突变体的长角果长度,花梗柄部长度大于野生型,而超表达ga植株种英则略小于对照; gpal突变体长角果尖端未出现咭乙i突变体的特征: gpal ,口gbl突变体花粉生成量大于野生型,而超表达ga植株的花粉生成量则略小于对照。
Microspores are spores that develop into a male gametophyte, whereas megaspores develop into female gametophytes. The male gametophyte then gives rise to sperm cells, which are used for fertilization.
microsporeとは意味:{名} : 小胞子 microspore meaning: Noun: microspore 'mIkru`spor Smaller of the two types of spore produced in heterosporous plants; develops in the pollen sac into a male gametophyte Derived forms: microspores ...microspore перевод:1) _бот. _биол. микроспора