Susceptibility to hydrogen peroxide and catalase activity of root nodule bacteria

The root nodule bacteria (free-living cells) tested had higher susceptibility to hydrogen peroxide (H202) than the other genera of aerobic or facultative anaerobic bacteria tested. The catalase activities tended to have a positive correlation with H202 resistance among all bacteria tested. Addition...

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Bibliographic Details
Published in:Bioscience, biotechnology, and biochemistry biotechnology, and biochemistry, 1999-03, Vol.63 (3), p.457-462
Main Authors: Ohwada, T. (Obihiro Univ. of Agriculture and Veterinary Medicine, Hokkaido (Japan)), Shirakawa, Y, Kusumoto, M, Masuda, H, Sato, T
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Amitrole - pharmacology
Bacteria, Aerobic - drug effects
Bacteria, Aerobic - enzymology
Bacteria, Aerobic - growth & development
Bacteria, Anaerobic - drug effects
Bacteria, Anaerobic - enzymology
Bacteria, Anaerobic - growth & development
Bacteriology
Biological and medical sciences
Bradyrhizobium - drug effects
Bradyrhizobium - enzymology
Bradyrhizobium - growth & development
CATALASA
CATALASE
Catalase - metabolism
Economic plant physiology
Electrophoresis, Polyacrylamide Gel
Fundamental and applied biological sciences. Psychology
HYDROGEN PEROXIDE
hydrogen peroxide (H
Hydrogen Peroxide - metabolism
Hydrogen Peroxide - pharmacology
Metabolism. Enzymes
Microbiology
Oxidants - metabolism
Oxidants - pharmacology
Peroxidases - metabolism
PEROXIDO DE HIDROGENO
PEROXYDE D'HYDROGENE
Plant Roots - microbiology
Rhizobiaceae - drug effects
Rhizobiaceae - enzymology
Rhizobiaceae - growth & development
RHIZOBIUM LEGUMINOSARUM
Rhizobium leguminosarum - drug effects
Rhizobium leguminosarum - enzymology
Rhizobium leguminosarum - growth & development
root nodule bacteria
Sinorhizobium meliloti - drug effects
Sinorhizobium meliloti - enzymology
Sinorhizobium meliloti - growth & development
Symbiosis (nodules, symbiotic nitrogen fixation, mycorrhiza...)
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Summary:The root nodule bacteria (free-living cells) tested had higher susceptibility to hydrogen peroxide (H202) than the other genera of aerobic or facultative anaerobic bacteria tested. The catalase activities tended to have a positive correlation with H202 resistance among all bacteria tested. Addition of a catalase inhibitor such as 3-amino-1,2,4-triazole increased the susceptibility to H2O2. These results suggest that the lower catalase activity brings about the higher susceptibility of root nodule bacteria to H2O2. Root nodule bacteria seemed to have two or three catalase isozymes during growth and their catalase activities were higher in log phase than in stationary phase, contrary to other genera of bacteria tested
ISSN:0916-8451
1347-6947
DOI:10.1271/bbb.63.457