文献类型：期刊文献

中文题名：温敏核不育小麦可育花药和败育花药发育观察

英文题名：Observation in Fertile and Sterile Anthers of A Thermo-sensitive Genic Male-sterile Wheat(Triticum astivum L)

作者：李东霄[1];邓小莉[2];李淦[1];徐龙龙[1];茹振钢[1]

第一作者：李东霄

机构：[1]河南科技学院小麦研究中心;[2]新乡学院生命科学与技术系

第一机构：河南科技学院小麦研究中心,新乡453003

年份：2012

卷号：34

期号：9

起止页码：880-885

中文期刊名：中国细胞生物学学报

外文期刊名：Chinese Journal of Cell Biology

收录：CSTPCD;;北大核心:【北大核心2011】；CSCD:【CSCD2011_2012】；

基金：国家科技支撑计划(No.2011BAD07B02);国家高技术研究发展计划(863)(No.2011AA10A106);河南省重大科技专项基金(No.111100110100)资助项目~~

语种：中文

中文关键词：小麦;温敏雄性不育;花粉;花药

外文关键词：wheat; thermo-sensitive genic male-sterile; pollen; anther

摘要：对温敏核不育小麦百农不育系(Bainong sterility,BNS)的可育和不育花药结构进行对比观察。在减数分裂期、小孢子早期和小孢子晚期,可育花药与不育花药的结构相同。小孢子分裂形成二胞花粉后,可育花粉中随着大液泡的分解,细胞质内含物增加,其中出现一些颗粒状物质。不育花药中,小孢子也可分裂形成二胞花粉,但营养细胞的大液泡不分解,细胞质也不增加,最终花粉中的细胞质消失,花粉败育。该种温敏核不育小麦的花粉败育时间发生在二胞花粉早期,可能和其大液泡没有适时分解有关。花粉败育时间的确定为进一步深入研究该种雄性不育小麦的败育机制打下了基础。
We compared structure of the wheat fertile and sterile anthers with section method.There is no difference in both fertile and sterile anthers at microspore mother cell and microspore stage.After microspore divides to form a bi-cellular pollen grain,the big vacuole in vegetative cell of fertile pollen disintegrates and disappears,and the cytoplasm content of the cell increases,including some granules（starches）.However,in sterile anther,microspores also divide to form bi-cellular pollen,however,the big vacuole in vegetative cell does not disintegrate and disappear.Finally,the pollen aborts with its cytoplasm disintegration in bi-cellular state.The time of the pollen abortion in the male sterile anther is at early bi-cellular stage due to the big vacuole no disintegration on time.The time confirmation of pollen abortion in the sterile anther makes a basis of further study for its male sterile mechanism.