Fatty acid composition and microbial activity of benthic marine sediment from McMurdo Sound, Antarctica
Signature lipids from the phospholipid esterlinked fatty acids (PELFA) of cell membranes were used to describe benthic microbial communities of 4 Antarctic sediments. Metabolic activities of the communities were determined by incorporation of [3H]thymidine into bacterial DNA and sodium [14C]acetate...
Published in: | FEMS Microbiology Letters |
---|---|
Main Authors: | , , |
Format: | Text |
Language: | English |
Published: |
Oxford University Press
1986
|
Subjects: | |
Online Access: | http://femsec.oxfordjournals.org/cgi/content/short/2/4/219 https://doi.org/10.1111/j.1574-6968.1986.tb01732.x |
id |
fthighwire:oai:open-archive.highwire.org:femsec:2/4/219 |
---|---|
record_format |
openpolar |
spelling |
fthighwire:oai:open-archive.highwire.org:femsec:2/4/219 2023-05-15T14:02:29+02:00 Fatty acid composition and microbial activity of benthic marine sediment from McMurdo Sound, Antarctica Smith, Glen A. Nichols, Peter D. White, David C. 1986-10-01 00:00:00.0 text/html http://femsec.oxfordjournals.org/cgi/content/short/2/4/219 https://doi.org/10.1111/j.1574-6968.1986.tb01732.x en eng Oxford University Press http://femsec.oxfordjournals.org/cgi/content/short/2/4/219 http://dx.doi.org/10.1111/j.1574-6968.1986.tb01732.x Copyright (C) 1986, Oxford University Press Articles TEXT 1986 fthighwire https://doi.org/10.1111/j.1574-6968.1986.tb01732.x 2015-02-28T23:53:10Z Signature lipids from the phospholipid esterlinked fatty acids (PELFA) of cell membranes were used to describe benthic microbial communities of 4 Antarctic sediments. Metabolic activities of the communities were determined by incorporation of [3H]thymidine into bacterial DNA and sodium [14C]acetate into membrane lipids. Biomass measurements from extractable phospholipid fatty acids per g dry wt. ranged between 6 to 76 nmol, or when converted to number of bacteria, 3.7 × 108 to 4.5 × 109 cells per g dry wt. The West Sound site at New Harbor contained the lowest biomass, while Cape Evans on the East Sound contained the greatest. A marked difference was also noted between sites in their sediment microbial community structure. The East Sound sites at Cape Armitage and Cape Evans contained a greater abundance of diatom marker lipids, whilst both sides of the Sound contained approximately the same relative amounts of bacterial groups distinguished using PELFA. Activity of sediment microorganisms measured by radiolabel incorporation under ambient conditions followed the trends of the biomass measurements. The East Sound sites were more active by an average of 45–73% for [3H]thymidine and possibly also for sodium [14C]acetate. Text Antarc* Antarctic Antarctica McMurdo Sound HighWire Press (Stanford University) Antarctic Armitage ENVELOPE(166.667,166.667,-77.850,-77.850) Cape Armitage ENVELOPE(163.250,163.250,-78.150,-78.150) Cape Evans ENVELOPE(161.550,161.550,-75.100,-75.100) East Sound ENVELOPE(-89.417,-89.417,76.468,76.468) McMurdo Sound New Harbor ENVELOPE(163.850,163.850,-77.600,-77.600) FEMS Microbiology Letters 38 4 219 231 |
institution |
Open Polar |
collection |
HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
Articles |
spellingShingle |
Articles Smith, Glen A. Nichols, Peter D. White, David C. Fatty acid composition and microbial activity of benthic marine sediment from McMurdo Sound, Antarctica |
topic_facet |
Articles |
description |
Signature lipids from the phospholipid esterlinked fatty acids (PELFA) of cell membranes were used to describe benthic microbial communities of 4 Antarctic sediments. Metabolic activities of the communities were determined by incorporation of [3H]thymidine into bacterial DNA and sodium [14C]acetate into membrane lipids. Biomass measurements from extractable phospholipid fatty acids per g dry wt. ranged between 6 to 76 nmol, or when converted to number of bacteria, 3.7 × 108 to 4.5 × 109 cells per g dry wt. The West Sound site at New Harbor contained the lowest biomass, while Cape Evans on the East Sound contained the greatest. A marked difference was also noted between sites in their sediment microbial community structure. The East Sound sites at Cape Armitage and Cape Evans contained a greater abundance of diatom marker lipids, whilst both sides of the Sound contained approximately the same relative amounts of bacterial groups distinguished using PELFA. Activity of sediment microorganisms measured by radiolabel incorporation under ambient conditions followed the trends of the biomass measurements. The East Sound sites were more active by an average of 45–73% for [3H]thymidine and possibly also for sodium [14C]acetate. |
format |
Text |
author |
Smith, Glen A. Nichols, Peter D. White, David C. |
author_facet |
Smith, Glen A. Nichols, Peter D. White, David C. |
author_sort |
Smith, Glen A. |
title |
Fatty acid composition and microbial activity of benthic marine sediment from McMurdo Sound, Antarctica |
title_short |
Fatty acid composition and microbial activity of benthic marine sediment from McMurdo Sound, Antarctica |
title_full |
Fatty acid composition and microbial activity of benthic marine sediment from McMurdo Sound, Antarctica |
title_fullStr |
Fatty acid composition and microbial activity of benthic marine sediment from McMurdo Sound, Antarctica |
title_full_unstemmed |
Fatty acid composition and microbial activity of benthic marine sediment from McMurdo Sound, Antarctica |
title_sort |
fatty acid composition and microbial activity of benthic marine sediment from mcmurdo sound, antarctica |
publisher |
Oxford University Press |
publishDate |
1986 |
url |
http://femsec.oxfordjournals.org/cgi/content/short/2/4/219 https://doi.org/10.1111/j.1574-6968.1986.tb01732.x |
long_lat |
ENVELOPE(166.667,166.667,-77.850,-77.850) ENVELOPE(163.250,163.250,-78.150,-78.150) ENVELOPE(161.550,161.550,-75.100,-75.100) ENVELOPE(-89.417,-89.417,76.468,76.468) ENVELOPE(163.850,163.850,-77.600,-77.600) |
geographic |
Antarctic Armitage Cape Armitage Cape Evans East Sound McMurdo Sound New Harbor |
geographic_facet |
Antarctic Armitage Cape Armitage Cape Evans East Sound McMurdo Sound New Harbor |
genre |
Antarc* Antarctic Antarctica McMurdo Sound |
genre_facet |
Antarc* Antarctic Antarctica McMurdo Sound |
op_relation |
http://femsec.oxfordjournals.org/cgi/content/short/2/4/219 http://dx.doi.org/10.1111/j.1574-6968.1986.tb01732.x |
op_rights |
Copyright (C) 1986, Oxford University Press |
op_doi |
https://doi.org/10.1111/j.1574-6968.1986.tb01732.x |
container_title |
FEMS Microbiology Letters |
container_volume |
38 |
container_issue |
4 |
container_start_page |
219 |
op_container_end_page |
231 |
_version_ |
1766272754776014848 |