Antibiosis and Acidification by Pantoea agglomerans Strain E325 May Contribute to Suppression of Erwinia amylovora
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منابع مشابه
Antibiosis and acidification by Pantoea agglomerans strain E325 may contribute to suppression of Erwinia amylovora.
Pantoea agglomerans strain E325, a commercially available antagonist for fire blight of apple and pear, was originally selected through screening based on suppression of Erwinia amylovora on flower stigmas, but specific mechanisms of antagonism were unknown. Bacterial modification of pH was evaluated as a possible mechanism by analyzing stigma exudates extracted from 'Gala' apple stigmas. The p...
متن کاملAntibiosis activity of Pantoea agglomerans biocontrol strain E325 against Erwinia amylovora on apple flower stigmas.
Pantoea agglomerans E325, the active ingredient in a commercial product for fire blight control, was previously shown in vitro to produce a unique alkaline- and phosphate-sensitive antibiotic specific to Erwinia amylovora. Antibiosis was evaluated as a mode of antagonism on flower stigmas using two antibiosis-deficient mutants. On King's medium B, mutants E325ad1 and E325ad2 have stable smooth-...
متن کاملPantoea agglomerans strain EH318 produces two antibiotics that inhibit Erwinia amylovora in vitro.
Pantoea agglomerans (synonym: Erwinia herbicola) strain Eh318 produces through antibiosis a complex zone of inhibited growth in an overlay seeded with Erwinia amylovora, the causal agent of fire blight. This zone is caused by two antibiotics, named pantocin A and B. Using a genomic library of Eh318, two cosmids, pCPP702 and pCPP704, were identified that conferred on Escherichia coli the ability...
متن کاملAbsence of lysogeny in wild populations of Erwinia amylovora and Pantoea agglomerans
Lytic bacteriophages are in development as biological control agents for the prevention of fire blight disease caused by Erwinia amylovora. Temperate phages should be excluded as biologicals since lysogeny produces the dual risks of host resistance to phage attack and the transduction of virulence determinants between bacteria. The extent of lysogeny was estimated in wild populations of E. amyl...
متن کاملGenome sequence of Pantoea agglomerans strain IG1.
Pantoea agglomerans is a gram-negative bacterium that grows symbiotically with various plants. Here we report the 4.8-Mb genome sequence of P. agglomerans strain IG1. The lipopolysaccharides derived from P. agglomerans IG1 have been shown to be effective in the prevention of various diseases, such as bacterial or viral infection, lifestyle-related diseases. This genome sequence represents a sub...
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ژورنال
عنوان ژورنال: Phytopathology®
سال: 2008
ISSN: 0031-949X,1943-7684
DOI: 10.1094/phyto-98-10-1136