Abstract
Symbiotic bacteria in the Vibrionaceae are a dynamic group of γ-Proteobacteria that are commonly found throughout the world. Although they primarily are free-living in the environment, they can be commonly found associated with various Eukarya, either as beneficial or pathogenic symbionts. Interestingly, this dual lifestyle (free-living or in symbiosis) enables the bacteria to have enormous ecological breadth, where they can accommodate a variety of stresses in both stages. Here, we discuss some of the most common stressors thatVibriobacteria encounter when in their free-living state or associated with an animal host, and how some of the mechanisms that are used to cope with these stressors can be used as an evolutionary advantage that increases their diversity both in the environment and within their specific hosts.
Highlights
The Vibrionaceae are a cosmopolitan family of gram-negative bacteria that form special associations with metazoan organisms (Thompson et al, 2006)
How Vibrio bacteria respond to such changes, and whether stress increases bacterial fitness and their ability to diversify among different associations with various eukaryotes, has yet to be determined
Vibrio bacteria have been observed in a wide range of habitats that vary in temperature, creating conditions that select for specific phenotypes that can survive and proliferate, both in their free-living mode as well as in their symbiotic lifestyle (Kimbell et al, 2002; Soto et al, 2009)
Summary
The Vibrionaceae are a cosmopolitan family of gram-negative bacteria that form special associations with metazoan organisms (Thompson et al, 2006). How Vibrio bacteria respond to such changes, and whether stress increases bacterial fitness and their ability to diversify among different associations with various eukaryotes, has yet to be determined.
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