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Autotrophic potential in mesophilic heterotrophic bacterial isolates from Sino-Pacific marine sediments

DRS at CSIR-National Institute of Oceanography

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Title Autotrophic potential in mesophilic heterotrophic bacterial isolates from Sino-Pacific marine sediments
 
Creator Cao, W.
Das, A.
Saren, G.
Jiang, M.
Zhang, H.
Yu, X.
 
Subject Microbiology::General
Geology and geophysics::Sediments and sedimentation
 
Description Microbial carbon fixation is a paramount process in the ocean especially below the photic zone both in water and sedimentary ecosystems. Autotrophic microbes that fix carbon dioxide are renowned. However, the question whether heterotrophs can also fix carbon is intriguing. Ten heterotrophically grown, identified bacterial isolates from the Sino-Pacific marine sediments were tested for autotrophic uptake potential with and without addition of electron donors. Nine of the ten isolates showed carbon uptake capacity without addition of any substrate at very low rates in the order of 10?8 to 10?4 fmol/(cell?h). The addition of manganese and ammonium at 1 mmol/L final concentration enhanced the uptake potential. Addition of 1 mmol/L final concentrations of reduced iron (10?6 to 10?5 fmol/(cell?h) and sulfide (10?5 fmol/(cell?h) decreased the uptake potential significantly at p
 
Date 2017-03-01T11:03:51Z
2017-03-01T11:03:51Z
2017
 
Type Journal Article
 
Identifier Acta Oceanologica Sinica, vol.36(2); 2017; 69-77
http://drs.nio.org/drs/handle/2264/5096
 
Language en
 
Rights An edited version of this paper was published by Springer. This paper is for R & D purpose and Copyright [2017] Springer.
 
Publisher Springer and Chinese Society of Oceanography