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CHENG Yangjian XIE Yongming ZHENG Jing WU Zhaoxian CHEN Zhi MA Xiaoyan LI Bin LIN Zhang 《环境科学学报(英文版)》2009,21(12):1673-1678
A Gram-negative, chromium(VI) tolerant and reductive strain CTS-325, isolated from a Chinese chromate plant, was identified as Ochrobactrum anthropi based on its biochemical properties and 16S rDNA sequence analysis. It was able to tolerate up to 10 mmol/L Cr(VI) and completely reduce 1 mmol/L Cr(VI) to Cr(III) within 48 h. When the strain CTS-325 was induced with Cr(VI), a protein increased significantly in the whole cell proteins. Liquid chromatography tandem mass spectrometry (LC-MS/MS) analysis revealed that this protein was a superoxide dismutase (SOD) homology. The measured superoxide dismutase activity was 2694 U/mg after three steps of purification. The SOD catalyzes the dismutation of the superoxide anion (O2·−) into hydrogen peroxide and molecular oxygen. This protein is considered to be one of the most important anti-oxidative enzymes for O. anthropi as it allows the bacterium to survive high oxygen stress environments, such as the environment produced during the reduction process of Cr(VI). 相似文献
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为满足生产需要,同时为冶金技术队伍储备后备力量,今年,淮钢特钢有限公司新进数百余名新工人。这批新工人中有大专生、技校生、还有农民工。为了让“新人”顺利地转换新角色、适应新环境、走向新岗位。公司把“新人”岗前培训作为转变观念、提高认识的有效措施,对新分配的学生、新招的农民工因“类”施“教”,采取不同的方式为职工上好第一课。 相似文献
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李惠清 《防灾技术高等专科学校学报》2003,5(2):31-34,7
从对马克思主义人的全面发展的内涵出发,阐述了邓小平以“四有”新人为主要内容的青年全面发展理论。并进一步探讨了江泽民针对国际国内形势和时代特征对邓小平这一理论的继承与发展。 相似文献
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人居行业,正在迎接一个品质时代的来临。而这一时代的来临,是与现代化的痛苦与需求紧密地联系在一起——尽管其涉及的人群和影响可能并没有想象的广泛和深度。我们将用绿色建筑这一极具标志性的人居典范,来定义这一新人居时代的美学品质。 相似文献
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