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Syringomycin production is stimulated by cysteine in Pseudomonas syringae pv. syringae


, : Syringomycin production is stimulated by cysteine in Pseudomonas syringae pv. syringae. FEMS Microbiology Letters 72(1-2): 177-181

The influence of cysteine and serine in the production of syringomycin by P. syringae pv. syringae was studied. Both amino acids increased toxin synthesis in wild-type strs, although cysteine has a higher stimulatory effect than serine. To corroborate the role of cysteine in the production of syringomycin, a Cys- mutant of P. syringae pv. syringae was isolated by transpositional mutagenesis with Tn5; this Cys- mutant did not produce syringomycin.

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Related references

Garriga X.; Castano M.; Barbe J., 1990: Syringomycin production is stimulated by cysteine in pseudomonas syringae pathovar syringae. FEMS Microbiology Letters 72(1-2): 177-182

X.G.W.; Gross D.C., 1988: Evaluation of the role of syringomycin in plant pathogenesis by using tn5 mutants of pseudomonas syringae pathovar syringae defective in syringomycin production. Syringomycin is a necrosis-inducing phytotoxin produced by Pseudomonas syringae pv. syringae. To determine whether syringomycin production is a determinant in virulence or pathogenicity, we isolated nontoxigenic (Tox-) Tn5-containing mutants and t...

Xu, G.W.; Gross, D.C., 1988: Evaluation of the Role of Syringomycin in Plant Pathogenesis by Using Tn5 Mutants of Pseudomonas syringae pv. syringae Defective in Syringomycin Production. Syringomycin is a necrosis-inducing phytotoxin produced by Pseudomonas syringae pv. syringae. To determine whether syringomycin production is a determinant in virulence or pathogenicity, we isolated nontoxigenic (Tox-) Tn5-containing mutants and t...

Gross, D.C., 1985: Regulation of syringomycin synthesis in Pseudomonas syringae pv. syringae and defined conditions for its production. Production of the phytotoxin, syringomycin (SR), by Pseudomonas syringae pv. syringae strain B301D was regulated by both iron and inorganic phosphate similar to that of many bacterial secondary metabolites. Iron concentrations of 2 mumol/l or more...

Gross, D.C., 1985: Regulation of syringomycin synthesis in Pseudomonas syringae pv. syringae and defined conditions for its production. Production of the phytotoxin, syringomycin (SR), by Pseudomonas syringae pv. syringae strain B301D was regulated by both iron and inorganic phosphate similar to that of many bacterial secondary metabolites. Iron concentrations of 2 mumol/l or more...

Hrabak, E.M.; Willis, D.K., 1993: Involvement of the lemA gene in production of syringomycin and protease by Pseudomonas syringae pv. syringae. The lemA gene of P. s. pv. syringae has been proposed to encode a transmembrane protein related to a large family of bacterial regulatory proteins. A lemA mutation in P. s. pv. syringae isolate B728a eliminates lesion development in brown spot dis...

Gross D.C., 1985: Characterization of syringomycin production mutants of pseudomonas syringae pathovar syringae caused by tn 5 insertions. Phytopathology: 1325

Surico, G.; Lavermicocca, P.; Minafra, A., 1988: Multiplication of Pseudomonas syringae pv. syringae in maize tissues in relation to the production of syringomycin and syringotoxin. Observations are described on the multiplication in maize leaves of 2 wild type strs of P. syringae pv. syringae, a compatible (B3A) syringomycin (SR) producer, an incompatible (ITM24) syringotoxin (ST) producer, and of 6 induced mutants. Growth c...

M.Y.Y.; Gross D.C., 1988: Expression of the syr b gene required for syringomycin production by pseudomonas syringae pathovar syringae during phytopathogenesis. Phytopathology 78(12 PART 1): 1534

Gross D.C., 1985: Regulation of syringomycin synthesis in pseudomonas syringae pathovar syringae and defined conditions for its production. Production of the phytotoxin, syringomycin (SR) by Pseudomonas syringae pv. [pathovar] syringae strain B301D was regulated by Fe and P similiar to that of many bacterial secondary metabolites. Fe concentrations of .gtoreq. 2 .mu.mol/l in deferrate...