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The detection of magnetotactic bacteria in deep sea sediments from the east P acific M anganese N odule P rovince
Author(s) -
Dong Yi,
Li Jinhua,
Zhang Wuchang,
Zhang Wenyan,
Zhao Yuan,
Xiao Tian,
Wu LongFei,
Pan Hongmiao
Publication year - 2016
Publication title -
environmental microbiology reports
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.229
H-Index - 69
ISSN - 1758-2229
DOI - 10.1111/1758-2229.12374
Subject(s) - magnetotactic bacteria , bacteria , food science , chemistry , microbiology and biotechnology , biology , genetics
Summary Magnetotactic bacteria ( MTB ) are distributed ubiquitously in sediments from coastal environments to the deep sea. The P acific M anganese N odule P rovince contains numerous polymetallic nodules mainly composed of manganese, iron, cobalt, copper and nickel. In the present study we used Illumina MiSeq sequencing technology to assess the communities of putative MTB in deep sea surface sediments at nine stations in the east P acific M anganese N odule P rovince. A total of 402 sequence reads from MTB were classified into six operational taxonomic units ( OTUs ). Among these, OTU 113 and OTU 759 were affiliated with the genus Magnetospira , OTU 2224 and OTU 2794 were affiliated with the genus M agnetococcus and M agnetovibrio , respectively, OTU 3017 had no known genus affiliation, and OTU 2556 was most similar to C andidatus M agnetananas. Interestingly, OTU 759 was widely distributed, occurring at all study sites. Magnetism measurements revealed that all sediments were dominated by low coercivity, non‐interacting single domain magnetic minerals. Transmission electron microscopy confirmed that the magnetic minerals were magnetosomes. Our data suggest that diverse putative MTB are widely distributed in deep sea surface sediments from the east P acific M anganese N odule P rovince.