論文

査読有り
2014年4月

Phospholipid-Derived Fatty Acids and Quinones as Markers for Bacterial Biomass and Community Structure in Marine Sediments

PLOS ONE
  • Tadao Kunihiro
  • ,
  • Bart Veuger
  • ,
  • Diana Vasquez-Cardenas
  • ,
  • Lara Pozzato
  • ,
  • Marie Le Guitton
  • ,
  • Kazuyoshi Moriya
  • ,
  • Michinobu Kuwae
  • ,
  • Koji Omori
  • ,
  • Henricus T. S. Boschker
  • ,
  • Dick van Oevelen

9
4
開始ページ
e96219
終了ページ
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1371/journal.pone.0096219
出版者・発行元
PUBLIC LIBRARY SCIENCE

Phospholipid-derived fatty acids (PLFA) and respiratory quinones (RQ) are microbial compounds that have been utilized as biomarkers to quantify bacterial biomass and to characterize microbial community structure in sediments, waters, and soils. While PLFAs have been widely used as quantitative bacterial biomarkers in marine sediments, applications of quinone analysis in marine sediments are very limited. In this study, we investigated the relation between both groups of bacterial biomarkers in a broad range of marine sediments from the intertidal zone to the deep sea. We found a good log-log correlation between concentrations of bacterial PLFA and RQ over several orders of magnitude. This relationship is probably due to metabolic variation in quinone concentrations in bacterial cells in different environments, whereas PLFA concentrations are relatively stable under different conditions. We also found a good agreement in the community structure classifications based on the bacterial PLFAs and RQs. These results strengthen the application of both compounds as quantitative bacterial biomarkers. Moreover, the bacterial PLFA- and RQ profiles revealed a comparable dissimilarity pattern of the sampled sediments, but with a higher level of dissimilarity for the RQs. This means that the quinone method has a higher resolution for resolving differences in bacterial community composition. Combining PLFA and quinone analysis as a complementary method is a good strategy to yield higher resolving power in bacterial community structure.

リンク情報
DOI
https://doi.org/10.1371/journal.pone.0096219
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000336736600031&DestApp=WOS_CPL
ID情報
  • DOI : 10.1371/journal.pone.0096219
  • ISSN : 1932-6203
  • Web of Science ID : WOS:000336736600031

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