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Title: The rise of pathogens : predation as a factor D driving the evolution of human pathogens in the environment
Authors: Erken, Martina
Lutz, Carla
McDougald, Diane
Keywords: DRNTU::Science::Biological sciences
Issue Date: 2013
Source: Erken, M., Lutz, C., & McDougald, D. (2013). The Rise of Pathogens: Predation as a Factor Driving the Evolution of Human Pathogens in the Environment. Microbial Ecology, 65(4), 860-868.
Series/Report no.: Microbial ecology
Abstract: Bacteria in the environment must survive predation from bacteriophage, heterotrophic protists, and predatory bacteria. This selective pressure has resulted in the evolution of a variety of defense mechanisms, which can also function as virulence factors. Here we discuss the potential dual function of some of the mechanisms, which protect against heterotrophic protists, and how predation pressure leads to the evolution of pathogenicity. This is in accordance with the coincidental evolution hypothesis, which suggests that virulence factors arose as a response to other selective pressures, for example, predation rather than for virulence per se. In this review we discuss some of those environmental factors that may be associated with the rise of pathogens in the marine environment. In particular, we will discuss the role of heterotrophic protists in the evolution of virulence factors in marine bacteria. Finally, we will discuss the implications for expansion of current pathogens and emergence of new pathogens.
DOI: 10.1007/s00248-013-0189-0
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SBS Journal Articles

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