Effects of temperature, salinity, and substrate on the colonization of surfaces in situ by aquatic bdellovibrios.

Applied and Environmental Microbiology
J I KelleyM L Baer

Abstract

Recent studies suggest that surfaces are a more conducive habitat than the water column for the proliferation of bdellovibrios in the aquatic environment. The effect of temperature and salinity on the colonization of bdellovibrios on oyster shell, glass, and polystyrene surfaces in situ was investigated over an annual cycle. Sterile surfaces were suspended in various bodies of water for intervals ranging from 24 to 120 h. The results revealed that bdellovibrios associated with different types of surfaces over a broad temperature and salinity range. After 24 h of submersion in waters with temperatures from 9.0 to 26.7(deg)C, the ranges in log(inf10) values per square centimeter for the three surfaces were as follows: oyster shell, 2.2 to 2.5; glass, 0.3 to 2.2; and polystyrene, 0.7 to 1.6. Bdellovibrios were not recovered from surfaces submerged in water at temperatures below 8(deg)C during the 120-h experimental cycle. The number of bdellovibrios and culturable bacteria on oyster shells was significantly higher than the numbers on glass and polystyrene at all time intervals. The number of bdellovibrios was positively correlated with temperature and salinity on all surfaces. A positive correlation between the number of recoverab...Continue Reading

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Citations

Jul 8, 2005·Applied and Environmental Microbiology·Daniel Kadouri, George A O'Toole
Apr 23, 2014·FEMS Microbiology Ecology·Prem P KandelEdouard Jurkevitch
Aug 10, 2012·Current Protocols in Microbiology·Edouard Jurkevitch
Nov 17, 2020·Frontiers in Microbiology·Henry N Williams, Huan Chen
Jul 25, 2019·International Journal of Molecular Sciences·Wen YinJin He
Sep 10, 2019·Environmental Microbiology·Hansol ImRobert J Mitchell
Apr 8, 2021·Current Biology : CB·Benjamin R WucherCarey D Nadell
Nov 25, 2021·Environmental Microbiology·Abhirup Mookherjee, Edouard Jurkevitch

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