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首页> 外文期刊>Journal of Clinical Microbiology >A New Phylogenetic Cluster of Cereulide-Producing Bacillus cereus Strains
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A New Phylogenetic Cluster of Cereulide-Producing Bacillus cereus Strains

机译：产蜡状芽孢杆菌蜡状芽孢杆菌菌株的新系统发生群集。

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Phenotypic and molecular studies have established that cereulide-producing strains of Bacillus cereus are a distinct and probably recently emerged clone within the Bacillus population. We analyzed a set of B. cereus strains, both cereulide producers and nonproducers, by multilocus sequence typing. Consistent with earlier reports, nonproducers demonstrated high heterogeneity. Most cereulide-producing strains and all flagellar antigen type H1 strains were allocated to the known sequence type of exclusively emetic B. cereus strains. Several cereulide-producing strains, however, were recovered at a new phylogenetic location, all of which were serotype H3 or H12. We hypothesize that the group of cereulide producers is diversifying progressively, probably by lateral transfer of the corresponding gene complex.
机译：表型和分子研究表明，蜡状芽孢杆菌产生蜡状芽孢杆菌的菌株是芽孢杆菌种群中一个独特的克隆，可能是最近出现的克隆。我们分析了一组 B。多位点序列分型的蜡状芽孢杆菌产生者和非产生者的蜡状芽孢杆菌菌株。与早期报道一致，非生产者表现出高度的异质性。大多数产生蜡状芽孢杆菌的菌株和所有鞭毛抗原类型H1菌株都被分配到已知的排卵素B的已知序列类型。蜡状菌株。然而，在新的系统发育地点回收了数种产生蜡状脑素的菌株，所有菌株均为血清型H3或H12。我们假设蜡状内酯生产者的群体正在逐步多样化，可能是通过相应基因复合物的侧向转移。

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