Variations of Archaeal communities in sediments of coastal Delaware
Date
2013
Authors
Journal Title
Journal ISSN
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Publisher
University of Delaware
Abstract
Members of Archaea are important microbes in various marine and terrestrial
habitats, yet we know little about their distribution patterns. In this study, we
combined culture-independent analyses with geochemical measurements to investigate
the archaeal communities from sediments at five sites in Delaware coastal areas,
including the Great Marsh, Inland Bays and three sites in the Broadkill River.
Delaware sediments housed 158 archaeal operational taxonomic units, including
ubiquitous mesophilic groups and close relatives of deep biosphere taxa. The
distributions of these archaeal groups were different among sites. However,
community structure was generally constant throughout all depths within each site.
This suggests site selection of the microbial communities, and a high level of vertical
relatedness within the sediments.
Description
Keywords
Archaeal diversity, Shallow marine sediment, 16S rRNA clone library, Catalyzed reporter deposition fluorescence in situ hybridization (CARD-FISH)