Culturable bacteria community development in postglacial soils of Ecology Glacier, King George Island, Antarctica

摘要: Glacier forelands are excellent sites in which to study microbial succession because conditions change rapidly the emerging soil. Development of bacterial community was studied along two transects on lateral moraines Ecology Glacier, King George Island, by culture-dependent and culture-independent approaches (denaturating gradient gel electrophoresis). Environmental such as cryoturbation soil composition affected both abundance phylogenetic diversity communities. Microbiocenosis structure transect 1 (severe cryoturbation) differed markedly from that 2 (minor cryoturbation). Soil physical chemical factors changed chronosequence (time since exposure) influenced taxonomic cultivated bacteria, particularly 2. Arthrobacter spp. played a pioneer role were present all samples, but most abundant 1. Cultivated bacteria isolated taxonomically more diverse than those 1; tended express broader range enzyme assimilation activities. Our data suggest is major factor controlling development postglacial soils, shed light glacier forelands, add new parameter models describe phenomena.