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ar·chaea 英ɑː'kɪə美ɑː'kɪə COCA⁸⁵³²⁹BNC¹⁴⁴⁶⁶⁴⁺³Economist⁵³⁵⁸¹⁺¹ 基本例句 n.古细菌¹⁰⁰ An archaean converts DNA into proteins very differently from, say, Streptococcus— in fact, protein synthesis in Archaea is more similar to the human process than to bacteria. 古生菌,比如链球菌,将 DNA转录成蛋白质会非常困难——实际上与细菌相比,古生菌的蛋白质合成过程与人类的蛋白质合成过程更相似。 yeeyan However, microorganisms are still observed in these harsh environments, mainly bacteria and archaea. 在这种极端环境中仍然存在一定的微生物种群,主要是细菌与古菌。 boshuo In this dissertation, we reviewed the development of bacterial taxonomy, the study on halophilic archaea. and the structure, function and application of BR protein. 本文对细菌分类学、嗜盐古菌的研究和 BR蛋白结构、功能和应用进行了概述。 cnki S-layer surface layer has been identified as the outermost structure of cellular envelopes in numerous organisms from bacteria and archaea domains. 在一些古细菌和真细菌中,表层蛋白是细胞膜最外层的结构。 kns50.chkd.cnki.net The cluster analysis showed that crop type impacts the community structure of soil archaea. 聚类分析结果显示,作物类型会影响土壤古菌群落结构。 biodiversity-science All of life can be divided into three domains: Eukarya including plants, animals, fungi, and other organisms Bacteria, and Archaea. 所有的生命形式可以划分为三大类:真核生物包括植物,动物,真菌,以及其他生物、细菌以及古生菌。 yeeyan Although similar in size and shape to bacteria, genetic analysis reveals that archaea are actually more closely related to humans and other eukaryotes. 古细菌尽管在大小和形状上与细菌相似,但遗传分析表明它们实际上更接近于人类和其它真核生物。 mdchome As to importance, when originally identified as distinct, the archaea, too, were regarded as marginal—yet their methane-generating properties are now a factor in climate-change calculations. 至于其重要性,古菌群在最开始被认定为自成一类时,也被视为无关紧要—— 但是它们释放甲烷的特性现在已被纳入气候变化的考察因素。 ecocn But while bacteria reproduce rapidly, the Archaea population doubles over the course of hundreds, even thousands, of years thanks to a slower metabolism and distinct genetic structure. 尽管细菌繁殖很快,但是由于古生菌新陈代谢较慢,细胞结构截然不同,其数量需要历经几百年甚至几千年的时间才能翻倍。163 Characteristics of Archaea community was significant, which shown a vertical distribution. 古菌群落特征显著,呈明显垂直分布。 fabiao In order to study and analyze the species and bacteriorhodopsin BR protein resource, a strain of extremely halophilic archaea AB3 was isolated. 为了研究分析嗜盐古生菌物种与细菌视紫红质 BR蛋白基因资源,分离纯化得到极端嗜盐古生菌 AB3。 dictall Objective To investigate the effects of periodontal therapy on Archaea colonization in subgingival plaque. 目的研究牙周治疗对龈下菌斑中古细菌定植的影响。 xuebao.shsmu.edu.cn Or are there other biological domains hiding in the shadows—missed, like the archaea were for so long, because biologists have been using the wrong tools to look? 或者是否还有其他的生物“域”隐藏在某个神秘角落? ——不为人所知,就好像古菌一样,因为生物学家误用观察工具所致,默默无闻多时。 ecocn Perhaps Archaea has been relegated to its seemingly second-class status because it is a relatively recent discovery— the separate domain was first proposed in1977. 古生菌被归为不太重要的二等类别,或许是因为它是新近才被发现的——首次提议将古生菌作为单独的类别是在1977年。 yeeyan Scientists thought formate was too poor an energy source to support life. But these archaea do fine. 科学家认为甲酸盐做为供养生命的能量源简直太苛刻了,但是这些古细菌却很好地生存下来。 yeeyan Sure, the concept of Archaea as a domain on the level of bacteria and eukaryotes is relatively recent, but the science behind the distinction is quite solid. 的确,古生菌是与细菌、真核生物同等水平的生物类别,这一概念是新近才有的,但是这种划分背后的科学基础却是相当坚实的。 yeeyan The third great domain of life, the archaea, look, under a microscope, like bacteria. 第三大“域”是古菌域,在显微镜下察看时,古菌看起来像细菌。 ecocn The anaerobic methane oxidation is also a microbial mediated procedure, dominated by methanotrophic archaea and sulfate reducing bacteria. 该过程发生在海底以下一个非常局限的区带,称为硫酸盐还原-甲烷厌氧氧化区带。 dictall Viruses are already known to infect animals, plants, fungi, protozoa, archaea, and bacteria. 病毒已知感染动物,植物,真菌,原生动物,古菌和细菌。 yeeyan While archaea resemble bacteria in morphology and genomic organization, they resemble eukarya in their method of genomic replication. 古细菌在形态学和基因组构造方面与细菌相似,在基因组复制方式方面与真核生物相似。 www3.chkd.cnki.net |