Bacteriophages Infecting Gram-Negative Bacteria in a Commercial Cucumber Fermentation

Frontiers in Microbiology
Zhongjing LuFred Breidt

Abstract

Cucumber fermentations are one of the most important vegetable fermentations in the United States. The fermentation is usually driven by lactic acid bacteria (LAB) indigenous to fresh cucumbers. But LAB are greatly outnumbered by many Gram-negative bacteria on fresh cucumbers, which may influence the growth of LAB and the incidence of bloater defect (hollow cavities formed inside fermented cucumbers) leading to serious economic loss to the pickle industry. Rapid elimination of Gram-negative bacteria is crucial to the dominance of LAB and the reduction of bloater defect in the fermentation. Various factors can affect the viability of Gram-negative bacteria in cucumber fermentation. Bacteriophages (phages) may be one of such factors. This study explored the abundance, diversity, and functional role of phages infecting Gram-negative bacteria in a commercial cucumber fermentation. Cover brine samples were taken from a commercial fermentation tank over a 30-day period. On day 1 and day 3 of the fermentation, 39 Gram-negative bacteria and 26 independent phages were isolated. Nearly 67% of Gram-negative bacterial isolates were susceptible to phage infection. Phage hosts include Enterobacter, Citrobacter, Escherichia, Pantoea, Serratia...Continue Reading

References

Jun 5, 2003·International Journal of Food Microbiology·Z LuT R Klaenhammer
Jun 6, 2003·Applied and Environmental Microbiology·Z LuH P Fleming
Dec 8, 2005·Applied and Environmental Microbiology·Amy Beumer, Jayne B Robinson
Mar 21, 2007·Diagnostic Microbiology and Infectious Disease·Hong Nhung PhamTakayuki Ezaki
Nov 22, 2007·Poultry Science·L BielkeB M Hargis
May 4, 2011·Journal of Food Science·Frederick Breidt, Jane M Caldwell
Dec 20, 2011·Applied and Environmental Microbiology·Wendy FrancoRoger F McFeeters
Sep 28, 2012·Journal of Applied Microbiology·W Franco, I M Pérez-Díaz
Oct 2, 2012·Applied and Environmental Microbiology·Z LuF Breidt

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Citations

Jul 17, 2021·Journal of Agricultural and Food Chemistry·Xin LinYuanlong Chi

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Datasets Mentioned

BETA
MG678921

Methods Mentioned

BETA
electron
electrophoresis
transmission electron microscopy
electron microscopy

Software Mentioned

Statistica
API20E

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