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在实验室条件下,培养了一个采自青海尕海湖的孤雌生殖卤虫(Artemia parthenogenetica of Gahai)的克隆。该克隆包括3578个雌体和103个罕见雄体,在这些罕见雄体中发现二例雌雄嵌合体。其外部形态均表现为雄性,即具有正常的执握肢和外交接器,但在其体左侧出现了正常形态特征的卵细胞,表明在这两个外表为雄性的卤虫中有卵巢存在,为雌雄嵌合体。  相似文献   
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本文根据近年来对地面及地下实际地质材料的分析,对太子河流域上古生界分层问题提出如下意见:(1)太子河流域的“黄旗统”及“柳塘统”,下部含有多层海相地层;(2)仅‘柳塘统’的下部是山西统的相当层;(3)‘柳塘统’上部及整个‘彩家统’合在一起与石盒子统相当;(4)建议本区停止使用‘黄旗统’、‘柳塘统’及‘彩冢统’三名称,而分别依次以太原统、山西统及石盒子统代之;(5)本溪彩屯以南,出露于郑家屯至林家崴子一带,复盖于石盒子统上面的红色岩系,相当于石千峰统,与上白垩纪‘大峪统’不同;(6)所谓‘林家统’不是上白垩纪或第三纪沉积,它整合沉积于石千峰交错层砂岩上面,它和石千峰统皆属上二迭纪。故建议改称林家组。  相似文献   
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Proteomics was used to reveal the differential protein expression profiles of acute responses to copper sulfate exposure in larvae of Artemia sinica. Fourteen differentially displayed protein spots were detected and seven of them were identified. Three spots were up-expressed and identified: actin, heat shock protein 70, and chaperone subunit 1; three down-regulated proteins were identified: arginine kinase, elongation factor-2, and glycine-rich protein; and a newly expressed protein was identified as peroxiredoxin. The study indicates the involvement of all the differentially expressed proteins in the early responses of protein expression, and in the survival of A. sinica in the presence of copper and other heavy metals; the findings improve understanding of the organism’s adaptive responses and resistance.  相似文献   
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中华卤虫无节幼体蛋白质组的双向凝胶电泳分析   总被引:1,自引:1,他引:0       下载免费PDF全文
应用双向凝胶电泳和图像分析手段,对比了卤虫(Artemia)初孵无节幼体和孵化24h无节幼体中蛋白表达的变化情况。结果显示。随着卤虫幼体的发育,蛋白表达的种类和个数均明显增多。仅有个别蛋白的表达量下调。这些差异表达的蛋白可能跟卤虫幼体的发育过程密切相关或起重要的调节作用。  相似文献   
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Proteomics was used to reveal the differential protein expression profiles of acute responses to copper sulfate exposure in larvae of Artemia sinica.Fourteen differentially displayed protein spots were detected and seven of them were identified.Three spots were up-expressed and identified:actin, heat shock protein 70,and chaperone subunit 1;three down-regulated proteins were identified:arginine kinase,elongation factor-2,and glycine-rich protein;and a newly expressed protein was identified as peroxiredoxin.The study indicates the involvement of all the differentially expressed proteins in the early responses of protein expression,and in the survival of A.sinica in the presence of copper and other heavy metals;the findings improve understanding of the organism’s adaptive responses and resistance.  相似文献   
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