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Phaseolotoxin production by Pseudomonas syringae pv. phaseolicola : The influence of temperature
Author(s) -
Nüske Jörg,
Fritsche Wolfgang
Publication year - 1989
Publication title -
journal of basic microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.58
H-Index - 54
eISSN - 1521-4028
pISSN - 0233-111X
DOI - 10.1002/jobm.3620290713
Subject(s) - pseudomonas syringae , phytotoxin , chloramphenicol , toxin , pseudomonadales , metabolite , secondary metabolite , pseudomonadaceae , enzyme , microbiology and biotechnology , biology , pseudomonas , bacteria , biochemistry , antibiotics , gene , pathogen , genetics
Phaseolotoxin (N‐sulphodiaminophosphinyl‐ornithyl‐alanyl‐homoarginine) is a phytotoxic secondary metabolite produced by Pseudomonas syringae pv. phaseolicola. The production of the phytotoxin is strongly regulated by temperature. The optimal temperature for phaseolotoxin production is 18 °C. Temperatures in the range between 18 °C and 30 °C inhibit the production of phaseolotoxin in an increasing manner. By temperature shift experiments and the inhibition of protein synthesis by chloramphenicol it was demonstrated, that the synthesis of enzymes related to toxin synthesis and not the regulation of the activity of the responsible enzyme system is affected by higher temperatures.