Plasmids and Phaseolotoxin Production in Pseudomonas syringae pv. phaseolicola
نویسندگان
چکیده
منابع مشابه
Phaseolotoxin-insensitive ornithine carbamoyltransferase of Pseudomonas syringae pv. phaseolicola: basis for immunity to phaseolotoxin.
Cell-free extracts from phaseolotoxin-producing strains of Pseudomonas syringae pv. phaseolicola grown at 18 degrees C, the optimum temperature for phaseolotoxin production, contain an ornithine carbamoyltransferase activity that is insensitive to phaseolotoxin. Extracts from the same strains grown at 30 degrees C, a temperature at which little or no detectable phaseolotoxin is produced, and fr...
متن کاملPseudomonas syringae pv. phaseolicola: from 'has bean' to supermodel.
UNLABELLED Pseudomonas syringae pv. phaseolicola causes halo blight of the common bean, Phaseolus vulgaris, worldwide and remains difficult to control. Races of the pathogen cause either disease symptoms or a resistant hypersensitive response on a series of differentially reacting bean cultivars. The molecular genetics of the interaction between P. syringae pv. phaseolicola and bean, and the ev...
متن کاملFunctional characterization of the gene cluster from Pseudomonas syringae pv. phaseolicola NPS3121 involved in synthesis of phaseolotoxin.
Pseudomonas syringae pv. phaseolicola is the causal agent of halo blight disease of beans (Phaseolus vulgaris L.), which is characterized by water-soaked lesions surrounded by a chlorotic halo resulting from the action of a non-host-specific toxin known as phaseolotoxin. This phytotoxin inhibits the enzyme ornithine carbamoyltransferase involved in arginine biosynthesis. Different evidence sugg...
متن کاملOrnithine Transcarbamylase ArgK Plays a Dual role for the Self-defense of Phaseolotoxin Producing Pseudomonas syringae pv. phaseolicola
Pseudomonas syringae is a phytopathogenic bacterium widely spread on terrestrial plants. Sulfodiaminophosphinyl tripeptide Phaseolotoxins (PHTs), produced by P. syringae pv. phaseolicola and P. syringae pv. actinidiae, represent a kind of antimetabolic phytotoxins. PHTs inhibit host cell Ornithine transcarbamylase (OTCase) activity and induce Arginine auxotrophic phenotype. The biosynthesis of ...
متن کاملPseudomonas syringae pv. phaseolicola can be separated into two genetic lineages distinguished by the possession of the phaseolotoxin biosynthetic cluster.
The bean (Phaseolus spp.) plant pathogen Pseudomonas syringae pv. phaseolicola is characterized by the ability to produce phaseolotoxin (Tox(+)). We recently reported that the majority of the Spanish P. syringae pv. phaseolicola population is unable to synthesize this toxin (Tox(-)). These Tox(-) isolates appear to lack the entire DNA region for the biosynthesis of phaseolotoxin (argK-tox gene ...
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ژورنال
عنوان ژورنال: Microbiology
سال: 1981
ISSN: 1350-0872,1465-2080
DOI: 10.1099/00221287-122-1-161