Molecular identification of an endosymbiotic bacterium associated with pederin biosynthesis in Paederus sabaeus (Coleoptera: Staphylinidae)

被引：119

作者：

Kellner, RLL ^{[1
]}

机构：

[1] Fraunhofer Inst Toxicol & Aerosol Res, D-30625 Hannover, Germany

来源：

INSECT BIOCHEMISTRY AND MOLECULAR BIOLOGY | 2002年 / 32卷 / 04期

关键词：

Paederus sabaeus; endosymbionts; 16S rDNA; pederin; Pseudomonas (sensu stricto);

D O I：

10.1016/S0965-1748(01)00115-1

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Biosynthesis of the structurally complex hemolymph toxin pederin is an eminent character of Paederus females. For that capability, however, they rely on endosymbiotic bacteria that are lacking in aposymbiotic females. The bacterial inhabitants of the two phenotypes in Paederus sabaeus are evaluated in a PCR-based analysis of 16S rDNA. A certain fragment, which is not found in aposymbiotic females, is highly dominant in the other, biosynthesizing females and thus identifies the endosymbiont. Its DNA sequence reveals a member Of the 7 subdivision of the Proteobacteria that is clustered within the genus Pseudomonas (sensu stricto) as it is most closely related to Pseudomonas aeruginosa. These bacteria appear as the hypothesized common producers of pederin and the pederin family of analogs from marine sponges. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：389 / 395

页数：7

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