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淋病奈瑟菌及相关物种中25.2兆达尔顿接合型四环素抗性质粒的宿主范围。

Host range of the conjugative 25.2-megadalton tetracycline resistance plasmid from Neisseria gonorrhoeae and related species.

作者信息

Roberts M C, Knapp J S

机构信息

Department of Pathobiology, University of Washington, Seattle 98195.

出版信息

Antimicrob Agents Chemother. 1988 Apr;32(4):488-91. doi: 10.1128/AAC.32.4.488.

Abstract

High-level tetracycline resistance in strains of Neisseria gonorrhoeae, Neisseria meningitidis, Kingella denitrificans, and Eikenella corrodens has recently been described. The resistance in each species is due to the acquisition of 25.2-megadalton conjugative plasmids that carry the tetracycline resistance determinant TetM. We examined the ability of commensal Neisseria species to serve as recipients in conjugation for these new plasmids. Most of the recipients (n = 21) tested had detectable conjugation frequencies (greater than 10(-9] with one or more of the donor strains. Transfer was not detected in Branhamella catarrhalis. Transconjugants were able to maintain the plasmids and act as donors in subsequent matings.

摘要

最近已报道淋病奈瑟菌、脑膜炎奈瑟菌、反硝化金氏菌和腐蚀艾肯菌菌株中存在高水平四环素耐药性。每个菌种中的耐药性是由于获得了携带四环素耐药决定簇TetM的25.2兆达尔顿接合质粒。我们检测了共生奈瑟菌属菌种作为这些新质粒接合受体的能力。所检测的大多数受体(n = 21)与一种或多种供体菌株的接合频率可检测到(大于10^(-9))。在卡他布兰汉菌中未检测到转移。接合子能够维持质粒并在随后的交配中作为供体。

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