Targeted search for actinomycetes from nearshore and deep-sea marine sediments

TitleTargeted search for actinomycetes from nearshore and deep-sea marine sediments
Publication TypeJournal Article
Year of Publication2013
AuthorsPrieto-Davo A, Villarreal-Gomez LJ, Forschner-Dancause S, Bull AT, Stach JEM, Smith DC, Rowley DC, Jensen PR
JournalFems Microbiology Ecology
Date Published2013/06
Type of ArticleArticle
ISBN Number0168-6496
Accession NumberWOS:000318932300006
KeywordsActinobacteria; cultivation independent; gen. nov.; marine microbial ecology; marine-derived actinomycetes; phylogenetic diversity; primers; Salinispora; south china sea; sp nov.

Sediment samples collected off the coast of San Diego were analyzed for actinomycete diversity using culture-independent techniques. Eight new operational taxonomic units (OTUs) in the Streptomycetaceae were identified as well as new diversity within previously cultured marine OTUs. Sequences belonging to the marine actinomycete genus Salinispora were also detected, despite the fact that this genus has only been reported from more tropical environments. Independent analyses of marine sediments from the Canary Basin (3814m) and the South Pacific Gyre (5126 and 5699m) also revealed Salinispora sequences providing further support for the occurrence of this genus in deep-sea sediments. Efforts to culture Salinispora spp. from these samples have yet to be successful. This is the first report of Salinispora spp. from marine sediments >1100m and suggests that the distribution of this genus is broader than previously believed.

Short TitleFEMS Microbiol. Ecol.