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anther abortion
相关语句
  花药败育
     While Qiong68S was the type of anther abortion. Its fertility conversion was also affected by temperature, and its sterility was controlled by a single recessive gene on chromosome 2.
     琼68S为花药败育型,其育性转换受温度控制,不育性由一对隐性基因控制,该基因位于第2染色体上。
短句来源
     The research results are as follows:The cytomorphological observation showed that the anther abortion of dominant male sterility in cabbage occurred during the early pollen mother cell stage, however the peak of abortion took place during the period from pollen mother cell pre-meiosis stage to single nuclear microspore development stage.
     首次对甘蓝显性细胞核雄性不育花药发育过程中的超微结构观察表明:甘蓝显性细胞核雄性不育花药败育最早发生在花粉母细胞早期,败育高峰在花粉母细胞减数分裂前期至小孢子单核期。
短句来源
     Changes of Phytohormone Contents in Anther Abortion of Cytoplasmic Male Sterile Cotton
     棉花细胞质雄性不育花药败育过程中内源激素的变化
短句来源
     Identification of Differentially Expressed Genes during Anther Abortion of Taigu Genic Sterile Wheat Using SSH
     用差减抑制杂交方法鉴定太谷核不育小麦花药败育过程中的特异表达基因
短句来源
     Changes of RNase Vitality in the Anther Abortion Processes of Several Male Sterile Lines in Rapeseed(Brassica napus L.)
     几个甘蓝型油菜雄性不育系花药败育过程中核糖核酸酶的变化
短句来源
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  “anther abortion”译为未确定词的双语例句
     The abnormal rate of formation and development of microspore pollen and anther abortion are highest in E, next in X,lowest in N.
     低温处理后,3个品种小孢子的异常率以及花粉和花药的败育率都以E品种最高,X品种次之,N品种最低。
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 stages of anther growth when a large Ca~(2+) amount occurred in the anther connectives differed with the types of anther abortion with the non-pollen sterile lines presenting a large Ca~(2+) amount in the anther connectives at the PMC stage while Nongken 58S presented a large amount of Ca~(2+) in the anther connectives since the uninucleate-pollen stage .
     败育类型不同,药隔中出现大量Ca2+沉淀的时期也不同,无花粉型不育系在花粉母细胞时期药隔中就有大量Ca2+沉淀,而农垦58S从单核花粉时期药隔中才出现大量Ca2+沉淀.
短句来源
     anther and microsporogenesis observations showed that in YX-1 anther abortion mainly took place at tetrad stage because the tetrads could not release uninucleate pollens and the tapetum cells elongated in a radial manner and become vacuolated and then shed off as whole by postponing their disintegration.
     经花药发育及小孢子发生过程观察,YX-1败育主要发生在四分体时期,表现为四分体无法正常释放形成单核花粉粒,绒毡层细胞径向伸长和液泡化,之后延迟解体而整体脱落.
短句来源
  相似匹配句对
     Induced Abortion
     人工流产
短句来源
     Changes of Phytohormone Contents in Anther Abortion of Cytoplasmic Male Sterile Cotton
     棉花细胞质雄性不育花药败育过程中内源激素的变化
短句来源
     (7) The abortion of companion cell of phloem of anther connective vascular bundle.
     (7)药隔维管束韧皮部的伴胞解体。
短句来源
     The anther of Pachyrhizus erosus (L.)
     豆薯(Pachyrhizus erosus(L.)
短句来源
     abortion,stillbirth and malformation.
     妊娠妇女流产、死胎或胎儿畸形。
短句来源
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  anther abortion
The expression of Mn-sod and apx mRNA in anther of CMS line was obviously inhibited when ROS produced with a great deal during anther abortion, however the gene expression in hybrid F1 kept normal with the maintainer.
      


The ultrastructure of leaf epidermis of N, X and E, the three rice breeds, indicates that the stoma of the leaf epidermis of N is small, E is big,X is between N and E. The density of epidermal hair and sillica cell on the leaves of N,X and E is different. The highest density is in N, the lowest is in E,and that of X is between N and E.The size of toma is inversely correlated with cold resistance.During the process of formation and development of microspore, different degree of abnormal phenomena were caused...

The ultrastructure of leaf epidermis of N, X and E, the three rice breeds, indicates that the stoma of the leaf epidermis of N is small, E is big,X is between N and E. The density of epidermal hair and sillica cell on the leaves of N,X and E is different. The highest density is in N, the lowest is in E,and that of X is between N and E.The size of toma is inversely correlated with cold resistance.During the process of formation and development of microspore, different degree of abnormal phenomena were caused by cold treatment at the young microspore stage.It resulted in pollen abortion. At the mature pollen stage,only 2~4 anthers or no anthers were observed in one flower.These anthers are generally white, thin and short, there is no or little mature pollen in them. The abnormal rate of formation and development of microspore pollen and anther abortion are highest in E, next in X,lowest in N.

经扫描电镜观察丽江新团黑谷(N)、西南175(X)和矮脚糯(E)3个抗寒性不同的品种叶表皮的结构,结果表明:N的上、下表皮气孔均小,长毛多,硅化细胞分布密;而E的上、下表皮气孔较大,长毛少,硅化细胞分布稀;X上、下表皮气孔大小、长毛多少和硅化细胞分布稀密界于N和E之间。气孔大小与抗寒性成反相关。低温处理后3个品种在小孢子形成和发育的过程中均出现不同程度的异常现象,结果导致花粉和花药的败育。败育的小花成熟时常见只有2~4个花药或完全没有花药。花药白色,瘦瘪而短小,其内没有或很少有成熟花粉粒。低温处理后,3个品种小孢子的异常率以及花粉和花药的败育率都以E品种最高,X品种次之,N品种最低。

Microsporogenesis in normal and NMS lines of sesame was studied. Almost all the NMSlines have normal microspore ontogeny until the tetrad stage, when the abnormality of thepollen organelles are a sign of the abortion that contain largely emerged vocuole,anomalously dilated mitochondria and the sharp decrease in the content of plastids. Theabortion takes place rapidly and thoroughly in a very short duration at the earlynon--vacuolate microspore stage when the content of proteins, polysaccarides and DNA inthe...

Microsporogenesis in normal and NMS lines of sesame was studied. Almost all the NMSlines have normal microspore ontogeny until the tetrad stage, when the abnormality of thepollen organelles are a sign of the abortion that contain largely emerged vocuole,anomalously dilated mitochondria and the sharp decrease in the content of plastids. Theabortion takes place rapidly and thoroughly in a very short duration at the earlynon--vacuolate microspore stage when the content of proteins, polysaccarides and DNA inthe anther are very low as compared with the normal lines. The degenerative microspore isdeficient in tectorial layer. The abortion is closely related to the lask of nutrition supply. Thecomposition of the tapetum plays a decisive role in the anther abortion, which is associatedwth early maturation of the tapetum, reduced storage of organic compounds, decreased con-tent of the tapetal cell, and lack of callose enzyme and the Ubish body.

核不育芝麻小孢子败育发生在四分体形成之后的无液泡小孢子期,败育在很短的时间内完成。败育前小孢子大量液泡化,其线粒体异常膨大与质体的基质化可作为小孢子开始败育的标志。败育小孢子缺少花粉外壁上的覆盖层。芝麻花药绒毡层的异常,包括有机物贮量的降低;细胞内含物的异位分布及迅速减少与消失;不能及时或缺乏分泌胼胝质酶和花粉外壁来源的乌氏体等,是芝麻小孢子败育的直接原因。

Male sterility phenomenon have been reported for the first time in Tetraena mongolica Maxim. 8 stamens are observed in the flower of Tetraena mongolica Maxim, lined in two circles. The anther wall development conforms to basic type with secretory tapetum. The tapetum cell of normal anther begin to disintegrate after the formation of tetrad. The anther abortion of Tetraena mongolica Maxim begin at the prophase of microspore mother cell meiosis I and continue in the following stages. Some abortions...

Male sterility phenomenon have been reported for the first time in Tetraena mongolica Maxim. 8 stamens are observed in the flower of Tetraena mongolica Maxim, lined in two circles. The anther wall development conforms to basic type with secretory tapetum. The tapetum cell of normal anther begin to disintegrate after the formation of tetrad. The anther abortion of Tetraena mongolica Maxim begin at the prophase of microspore mother cell meiosis I and continue in the following stages. Some abortions occur in individual stamen, while others in all stamens. The middle layer and tapetum of abortive anthers begin to disintegrate before the meiosis of microspore mother cell and decompose completly during the meiosis. This makes the meiosis of microspore mother cell abnormal and causes a series of abortions. Thus the abnormal tetrad and uninuclear pollens are formed. The locules of abortive anther collapses, anther wall shrinks and deforms. The abortive pollen are observed in normal matural anther with elliptical or triangular shape.

首次报导了四合木花粉发育过程中存在雄性不育现象.四合木花具八枚雄蕊,分两轮排列.药壁发育属基本型,具腺质绒毡层.正常花药的绒毡层细胞在四分孢子形成之后开始解体.四合木花药败育从小孢子母细胞减数分裂I前期开始,在以后的各个时期均有发生.败育发生在个别雄蕊或全部雄蕊中不等.败育花药的药壁中层、绒毡层在小孢子母细胞减数分裂之前即开始解体,减数分裂过程中基本全部瓦解,使小孢子母细胞正常的减数分裂不能进行,引起以后一系列败育现象,形成不正常的四分孢子或单核花粉粒.败育花药药室瓦解,花粉囊收缩变形.即使在正常发育的成熟花药内,仍能观察到败育的花粉粒,形状为椭圆形或三角形.

 
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