Microbial Community Comparisons as a Function of the Physical and Geochemical Conditions of Galápagos Island Fumaroles

Autor:	Susan E. Childers, L. E. Mayhew, Dennis Geist, Jacob D. Pierson
Rok vydání:	2007
Předmět:	Basalt geography geography.geographical_feature_category biology Ecology Alcedo biology.organism_classification Microbiology Substrate (marine biology) Fumarole Terminal restriction fragment length polymorphism Volcano Microbial population biology Rhyolite Earth and Planetary Sciences (miscellaneous) Environmental Chemistry Geology General Environmental Science
Zdroj:	Geomicrobiology Journal. 24:615-625
ISSN:	1521-0529 0149-0451
Popis:	Microbial communities at six fumarole fields on Sierra Negra and Alcedo volcanoes in the Galapagos Islands were examined to test how extreme geochemical conditions affect microbial biodiversity. The geologic substrates consist of basalt and rhyolite with varying amounts of alteration and sulfur precipitates. Collected samples of substrates varied in pH from 0–6, and substrate temperatures were within the mesophilic, thermophilic, and hyperthermophilic temperature ranges. Terminal restriction fragment length polymorphism (T-RFLP) analyses were done to assess the relationship of communities to each other as a function of geologic substrate, pH, and temperature. Comparative analyses of community diversity define two distinct clusters showing that the relationship between spatially separated microbial communities at the fumaroles is most influenced by the pH of the local environment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e4acd69506124417b4a6b94276a7b343 https://doi.org/10.1080/01490450701672133 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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