Parasitic plasmid-host dynamics and host competition in flowing habitats
| Autor: | James P. Grover, Feng-Bin Wang |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Statistics and Probability Range (biology) media_common.quotation_subject Bacteriocin Plasmids Zoology Biology Bacterial Physiological Phenomena 010603 evolutionary biology 01 natural sciences Models Biological General Biochemistry Genetics and Molecular Biology Competition (biology) 03 medical and health sciences Plasmid Ecosystem media_common 0303 health sciences General Immunology and Microbiology 030306 microbiology Host (biology) Applied Mathematics Dynamics (mechanics) General Medicine Habitat Modeling and Simulation General Agricultural and Biological Sciences |
| Zdroj: | Mathematical biosciences. 311 |
| ISSN: | 1879-3134 |
| Popis: | Competition and coexistence were examined for two bacterial species, each potentially carrying a fitness-reducing, parasitic plasmid that was vertically transmitted with possible loss through segregation. Here, the fitness reduction of hosts was due to a toxin produced by plasmid-bearing cells and inhibiting plasmid-free cells. These populations were placed in a flow reactor habitat representing an idealized mammal gut. It was numerically shown that parasitic plasmids can mediate coexistence of competing host species, in conditions where plasmid-free hosts could not coexist. Numerical construction of a coexistence example suggests that it arises only for a narrow parameter range. In particular, both rates of segregation and the growth costs of plasmid carriage must be relatively low. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect