Generation and properties of a luminescent insect pathogen Xenorhabdus nematophilus (Enterobacteriaceae).
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چکیده
منابع مشابه
A homoserine lactone autoinducer regulates virulence of an insect-pathogenic bacterium, Xenorhabdus nematophilus (Enterobacteriaceae).
N-beta-Hydroxybutanoyl homoserine lactone (HBHL), the autoinducer of the luminescent system of Vibrio harveyi, has been identified as the first small compound to restore virulence to avirulent mutants of Xenorhabdus nematophilus. HBHL stimulated the level of lipase activity excreted by avirulent X. nematophilus and lowered the phenoloxidase activity in the hemolymph of insects infected with X. ...
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Xenorhabdus spp. and Photorhabdus spp., entomopathogenic bacteria symbiotically associated with nematodes of the families Steinernematidae and Heterorhabditidae, respectively, were shown to produce different lipases when they were grown on suitable nutrient agar. Substrate specificity studies showed that Photorhabdus spp. exhibited a broad lipase activity, while most of the Xenorhabdus spp. sec...
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The trade-off hypothesis proposes that the evolution of pathogens' virulence is shaped by a link between virulence and contagiousness. This link is often assumed to come from the fact that pathogens are contagious only if they can reach high parasitic load in the infected host. In this paper we present an experimental test of the hypothesis that selection on fast replication can affect virulenc...
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ژورنال
عنوان ژورنال: The Journal of General and Applied Microbiology
سال: 1998
ISSN: 0022-1260,1349-8037
DOI: 10.2323/jgam.44.259