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sterile anther
相关语句
  不育花药
     The results showed that :1) The destroying speed of SOD activity in sterile anther of C49S was 4.34 to 4.35 times of its fertile anther during the time of PMC meiosis stage to microspore stage,and at mature pollen stage the activity in fertile anther was 1 to 2 times higher than that in sterile anther;
     结果表明 ,温光型核雄不育小麦不育花药 SOD活性在花粉母细胞减数分裂期至小孢子早期的下降速率是可育花药的 4.34~ 4.35倍 ,在成熟花粉期 ,可育花药的活性比不育花药高 1~ 2倍 ;
短句来源
     Since the metabolism of phytohormones was regulated by many kinds of enzymes, the decrease of tryptophan synthetase activity and the rise of IAA oxidase activity might cause the reduction of IAA content, and affect the balance of IAA and the development of pollen in sterile anther.
     激素代谢受到多种酶的调节,不育花药中色氨酸合成酶活性降低和IAA氧化酶活性升高,降低雄性器官中IAA的含量,影响生长素的库源平衡,影响花粉的发育,可能引起雄性不育的发生;
短句来源
     The tapetum of fertile anther showed ATPase activity in mitochondria and nucleus, while in sterile anther, tapetum exhibited ATPase activity only in nucleus.
     可育花药单核中位期绒毡层ATPase定位于核和线粒体 ,同期不育花药绒毡层ATPase定位于核和核仁上。
短句来源
     According to anther abortion characteristics and hormone functions, it was suggested that IAA, GA3 and ZR deficiency might be associated respectively with the inhibition of starch grain accumulation, pollen mother cell and tapetal cell expansion and tetrad formtion, and that abortion and even death of pollen mother cells and tapetal cells in sterile anther might be accelerated by high ABA accumulation.
     根据内源激素的功能推测,不育花药IAA含量过低使花药淀粉积累受阻,GA_3含量不足影响花粉母细胞和绒毡层细胞的膨大,过低的ZR含量使花粉母细胞不能分裂形成四分体,过高的ABA含量促进花粉母细胞退化和死亡。
短句来源
     The results of disappearance of some bands and lower contents of free histones indicated that the expression of the genes relating to the pollen development were disturbed in the sterile anther.
     不育花药中游离组蛋白某些区带的消失和总含量的减少,进一步表明不育花药中与花粉发育有关的基因表达受到干扰.
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  “sterile anther”译为未确定词的双语例句
     Study on the Development of the Male Sterile Anther in Watermelon G_ (17) AB Line
     西瓜G_(17)AB不育花药的细胞形态学及组织化学研究
短句来源
     The Study on the Sterile Anther and Pollen of Xanthoceras sorbifolia
     文冠果败育花药和花粉发育的解剖学研究
短句来源
     Cytological observations on male sterile anther and pollen developments induced by chemical hybridizing agent GENESIS in wheat
     化学杂交剂GENESIS诱导小麦雄性不育的细胞形态学观察
短句来源
     3. Degeneration of the middle layer in sterile anther also delayed.
     3.败育花药的中间层解体也延迟。
短句来源
     Meanwhile,it was presumed that the tapetal cells in male sterile anther underwent premature programmed cell death(PCD)based on the DNA ladder.
     利用DNA梯度技术发现不育系绒毡层细胞提早发生程序性死亡。
短句来源
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  相似匹配句对
     The Study on the Sterile Anther and Pollen of Xanthoceras sorbifolia
     文冠果败育花药和花粉发育的解剖学研究
短句来源
     Study on Anther Defective Male Sterile Line in Rice
     水稻无花药不育材料的研究
短句来源
     Sterile packaging
     塑料瓶无菌灌装包装
短句来源
     ④sterile tetraploid.
     ④四倍体不育。
短句来源
     Its anther is 4-sporangiate.
     红花木莲花药具有4个小孢子囊,花药壁5~6层。
短句来源
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  sterile anther
We combined nuclear homozygosity for each of the two mst genes with the four different plastomes of Oenothera and demonstrated that in both cases the sterile anther phenotype is independent of the plastome.
      
one is (AB4A5), which was specifically expressed in the sterile anther, and the other (AB3B2), which contained some sequence homologous to a mitochondrial gene (coxII) and whose expression was partially suppressed in the sterile anther.
      


We have studied biochemically the ."Three Lines" (the male sterile line, the maintainer line and the pollen fertility recoverer line) and found that proline in the sterile anther is lower than that in control. Thus the retardation of sugar metabolism and the decrease of amino acid may be one of the important factors responsible for male sterility of rice.

我们对水稻“三系”及杂交水稻进行了生化方面的研究,结果表明:不育系的花药中脯氨酸含量均比正常植株低。因此,糖代谢受阻与氨基酸含量降低,可能是水稻雄性不育的重要原因之一。

The features of anther and pollen development of male-sterile wheat line "you-boa" were studied morphocytologieally and those of the maintaining line were secured for comparison.The results obtained are summarized as follows: 1. Anther of male-sterile line consists of one to four chambers. The decrease of chamber number is partly due to the fusion of anther chambers. 2. The features of anther and pollen development in male-sterile wheat were found in two types: (1) Anther with abortive pollen. Under this type,...

The features of anther and pollen development of male-sterile wheat line "you-boa" were studied morphocytologieally and those of the maintaining line were secured for comparison.The results obtained are summarized as follows: 1. Anther of male-sterile line consists of one to four chambers. The decrease of chamber number is partly due to the fusion of anther chambers. 2. The features of anther and pollen development in male-sterile wheat were found in two types: (1) Anther with abortive pollen. Under this type, three subtypes could be again divided. (a) Pollen development was arrested at l-nucleate. (b) l-nucleate pollen aborted in some anthers. (c) One anther was found to have hypertrophitic tapetum. (2) Anther without pollen due to PMC disorganization. There are three cases in the disorganization of the pollen mother cells. (a)Pollen mother cells disorganized while tapetal layers developed normally. (b)Both pollen mother cells and tapetallayers disorganized.(c)Pollen mother cells fused with tapetal cells to form pesiplasmodium and then disorganized. Anthers both in (a) and (b) have hypertrophic middle layers. The develoment of tapetal cells was found to be normal in the anther with abortive pollen,but not in the anther without pollen. Since the pollen mother cells in the anther without pollen disorganized simultaneously with or even before the disorganization of the tapetal cells, it seems that the abnormal development of tapetal cells can not be attributed as the cause of pollen abortion. The conception that inadequate differentiation of vascular bundles in male-sterile anther leads to pollen abortion is not supported in this investigation.

“蚰包”小麦不育系的花药为1至4室,药室数减少,部分地是由于药室合并的结果。花药、花粉发育可分为败育型及无花粉型。败育型的减数分裂正常,花粉停滞在单核靠边期或在单核期败育;无花粉型的花粉母细胞在减数分裂前败育,其药壁中层有肥大生长现象。本观察结果,难以说明毡绒层异常为花粉败育的根源,花粉败育与药隔维管束亦无关。

Using the three-lines of rice and restored hybrids as testing materials,the biochemical causes of male sterility and restoration of fertility were investigated.It was found that content of auxin-liked substances in anthers from sterile line was lowered to 1/25 or 1/8 of.that of normal level and restored to 1/2 or 3/4 in restored anthers (while only to 1/5 by weak restorer).Auxin deficiency in anthers of sterile line could be attributed to the duplex or triplex rising of IAA-oxidizing activity of peroxidase which...

Using the three-lines of rice and restored hybrids as testing materials,the biochemical causes of male sterility and restoration of fertility were investigated.It was found that content of auxin-liked substances in anthers from sterile line was lowered to 1/25 or 1/8 of.that of normal level and restored to 1/2 or 3/4 in restored anthers (while only to 1/5 by weak restorer).Auxin deficiency in anthers of sterile line could be attributed to the duplex or triplex rising of IAA-oxidizing activity of peroxidase which exhibited 10 extra spots of activated isozyme in two dimensional PAGE.In restored hybrid,the further activated isoxymes were recovered and peroxidase activity was reduced to normal level.Based on these facts and the accumulation of tryptophan (the sole precursor of auxins) in the sterile anther,we suggest that auxin metabolic pool is deteriorated in sterile anther by input shortening and ourput augmenting while restoration of fertility is attained by reestablishing the equilibrium between input and output,A brief discussion on the genetics of plant male sterility and restoration of fertility was given

本文报告以水稻三系及其杂种为主要材料所进行的育性问题的生化遗传分析结果。数据和电泳酶谱显示了:不育系花药生长素类物含量降低工作对照的可育材料的1/8或1/25。完全恢复的杂种,其含量恢复到1/2或3/4;不完全恢复的杂种只升高到对照的1/5。不育系花药生长素亏损与其过氧化物酶活力增高2~3倍相联系;电泳技术显示酶活力剧增是由于10多个同工酶斑被激活。育性恢复材料中,这些激活的酶斑减少,酶活力因而恢复到常规品种的水平。本文根据不育系花药中有色氨酸积累及过氧化物酶活力剧增的事实,提出生长素代谢库概念,认为雄性不育的起因在于生长素代谢库输入减少输出巨增;育性恢复是由于代谢库输入与输出恢复了平衡。据此,讨论了雄性不育与育性恢复的实质,探讨了不育基因、恢复基因等假说的难点。

 
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