Articles > Journals > Applied Sciences journals > Canadian Journal of Microbiology articles > June 2006

Article: Bacteriocin-like substance inhibits potato soft rot caused by Erwinia carotovora.

Article from:
Canadian Journal of Microbiology
Article date:
June 1, 2006
Author:
Copyright

Abstract: Soft rot is a major problem encountered in potatoes during postharvest storage. The soft rot bacterium Erwinia carotovora was inhibited by a novel bacteriocin-like substance (BLS) produced by Bacillus licheniformis P40. The BLS caused a bactericidal effect on E. carotovora cells at 30 [micro]g m[L.sup.-1]. Transmission electron microscopy showed that BLS-treated cells presented wrinkled bacterial surfaces and shrinkage of the whole cell, indicating plasmolysis. Erwinia carotovora cells treated with BLS were analyzed by FTIR showing differences in the 1390 [cm.sup.-1] and 1250-1220 [cm.sup.-1] bands, corresponding to assignments of membrane lipids. BLS was ...

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