BACTERIOCINOGENESIS IN CELLS OF XENORHABDUS-NEMATOPHILUS AND PHOTORHABDUS-LUMINESCENS - ENTEROBACTERIACEAE ASSOCIATED WITH ENTOMOPATHOGENIC NEMATODES

被引:20
作者
BAGHDIGUIAN, S
BOYERGIGLIO, MH
THALER, JO
BONNOT, G
BOEMARE, N
机构
[1] UNIV MONTPELLIER 2,INRA,PATHOL COMPAREE LAB CP 101,CNRS,URA 1184,F-34095 MONTPELLIER 05,FRANCE
[2] INST NATL SCI APPL,INRA,BIOL APPL LAB,UA 23203,F-69621 VILLEURBANNE,FRANCE
关键词
BACTERIOCIN MORPHOGENESIS; BACTERIAL LYSIS; MITOMYCIN C; PHAGE-TAIL LIKE PARTICLES; IMAGE PROCESSING;
D O I
10.1016/0248-4900(93)90254-C
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
Xenorhabdus nematophilus F1 strain and Photorhabdus luminescens NC19 strain produced bacteriocins after mitomycin C treatment and under natural conditions respectively. The ultrastructure of these two strains was described and compared to the ultrastructure of untreated or normal cells. After image processing of purified bacteriocins we found morphological homology in infected cells with protoplasmic rods in longitudinal section and hexagonal aggregates in transversal section. We concluded that these particular structures, so-called 'lattice structures' and previously interpreted as 'photosomes', are in fact the early stages of in situ production of bacteriocins in these two bacterial genera. Natural occurrence of Photorhabdus spp bacteriocinogenesis was observed in other strains, while other lysogenic strains of Xenorhabdus spp are lysed after a mitomycin C treatment.
引用
收藏
页码:177 / 185
页数:9
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