Spatiotemporal distribution of marine magnetotactic bacteria in a seasonally stratified coastal salt pond.

ABSTRACT: The occurrence and distribution of magnetotactic bacteria (MB) were studied as a function of the physical and chemical conditions in meromictic Salt Pond, Falmouth, Mass., throughout summer 2002. Three dominant MB morphotypes were observed to occur within the chemocline. Small microaerophilic magnetite-producing cocci were present at the top of the chemocline, while a greigite-producing packet-forming bacterium occurred at the base of the chemocline. The distributions of these groups displayed sharp changes in abundance over small length scales within the water column as well as strong seasonal fluctuations in population abundance. We identified a novel, greigite-producing rod in the sulfidic hypolimnion that was present in relatively constant abundance over the course of the season. This

SUBMITTER: Simmons SL 

PROVIDER: S-EPMC522115 | biostudies-literature | 2004 Oct

REPOSITORIES: biostudies-literature