RRC ID 10744
著者 Nakayama T, Nomura N, Matsumura M.
タイトル Study on the relationship of protease production and luminescence in Vibrio harveyi.
ジャーナル J Appl Microbiol
Abstract AIMS:To demonstrate that Vibrio harveyi produces various types of toxins and how the production of those toxins is related with luminescence.
METHODS AND RESULTS:Luminescence and toxicity of eight V. harveyi were evaluated. We demonstrated that all V. harveyi emitting luminescence were isolated from marine organisms and also showed that they were highly pathogenic when compared with culture collection V. harveyi based on cytotoxic assay test. On the contrary, V. harveyi isolated from shrimp farm showed no luminescence but showed high pathogenicity based on toxicity test. The effect of protease inhibitors on pathogenicity and luminescence was also investigated. We demonstrated that light emission of pathogenic V. harveyi remarkably decreased after addition of protease inhibitor. Furthermore, extracellular proteins from cell-free culture supernatant of luminescent and nonluminescent V. harveyi were compared using SDS-PAGE analysis. Results showed that there were differences in molecular weight and amount of proteins.
CONCLUSIONS:Vibrio harveyi parasiting marine organisms have both luminescence and pathogenicity. Based on this study, luminescence and protease toxin activity in V. harveyi are related. Moreover, this paper clarified that V. harveyi produces various types of toxins.
SIGNIFICANCE AND IMPACT OF THE STUDY:The current study demonstrated that V. harveyi produces two kinds of toxins, haemolysin and protease toxin. It may be clear roots of V. harveyi toxin.
巻・号 101(1)
ページ 200-5
公開日 2006-7-1
DOI 10.1111/j.1365-2672.2006.02887.x
PII JAM2887
PMID 16834607
MeSH Bacterial Proteins / metabolism Endopeptidases / metabolism* Hemolysin Proteins Luminescence* Luminescent Measurements Protease Inhibitors / pharmacology Seawater Toxicity Tests Toxins, Biological / metabolism Vibrio / drug effects Vibrio / metabolism Vibrio / physiology* Virulence Water Microbiology*
IF 3.066
引用数 7
WOS 分野 BIOTECHNOLOGY & APPLIED MICROBIOLOGY MICROBIOLOGY
リソース情報
ヒト・動物細胞 HeLa(RCB0007)