Biomass of the cryptoendolithic microbiota from the Antarctic desert
Extractable lipid phosphate was used to determine the biomass of the cryptoendolithic microbiota that colonizes sandstone rocks in the Ross Desert region of Antarctica. The mean amount of lipid phosphate was 0.053 micromole/cm2 (n = 9), which equals 2.54 g of C per m2 (range, 1.92 to 3.26 g of C per...
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Language: | English |
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American Society for Microbiology
1988
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Online Access: | http://dx.doi.org/10.1128/aem.54.4.957-959.1988 https://journals.asm.org/doi/pdf/10.1128/aem.54.4.957-959.1988 |
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crasmicro:10.1128/aem.54.4.957-959.1988 2024-10-06T13:43:11+00:00 Biomass of the cryptoendolithic microbiota from the Antarctic desert Vestal, J R 1988 http://dx.doi.org/10.1128/aem.54.4.957-959.1988 https://journals.asm.org/doi/pdf/10.1128/aem.54.4.957-959.1988 en eng American Society for Microbiology https://journals.asm.org/non-commercial-tdm-license Applied and Environmental Microbiology volume 54, issue 4, page 957-959 ISSN 0099-2240 1098-5336 journal-article 1988 crasmicro https://doi.org/10.1128/aem.54.4.957-959.1988 2024-09-09T04:15:48Z Extractable lipid phosphate was used to determine the biomass of the cryptoendolithic microbiota that colonizes sandstone rocks in the Ross Desert region of Antarctica. The mean amount of lipid phosphate was 0.053 micromole/cm2 (n = 9), which equals 2.54 g of C per m2 (range, 1.92 to 3.26 g of C per m2) of biomass in the biotic zone of these rocks. The turnover of phospholipids was comparable to that of temperate sediments and soils (t1/2, 6 to 9 days) at 0 degrees C and a light intensity of 305 micromoles of photons per m2 per s, indicating that this was a good method to measure viable biomass. The biomass was 0.3 to 9.6% of the total carbon content of the biotic zone and was about 2 orders of magnitude smaller than the epilithic lichen dry weight at a location some 7 degrees north in latitude. The cryptoendolithic microbiota had a uniform density throughout the biotic zone under the rock surface. The results indicate that the cryptoendolithic microbial biomass is small but viable in this unique, extreme ecosystem. Article in Journal/Newspaper Antarc* Antarctic Antarctica ASM Journals (American Society for Microbiology) Antarctic The Antarctic Applied and Environmental Microbiology 54 4 957 959 |
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Open Polar |
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ASM Journals (American Society for Microbiology) |
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crasmicro |
language |
English |
description |
Extractable lipid phosphate was used to determine the biomass of the cryptoendolithic microbiota that colonizes sandstone rocks in the Ross Desert region of Antarctica. The mean amount of lipid phosphate was 0.053 micromole/cm2 (n = 9), which equals 2.54 g of C per m2 (range, 1.92 to 3.26 g of C per m2) of biomass in the biotic zone of these rocks. The turnover of phospholipids was comparable to that of temperate sediments and soils (t1/2, 6 to 9 days) at 0 degrees C and a light intensity of 305 micromoles of photons per m2 per s, indicating that this was a good method to measure viable biomass. The biomass was 0.3 to 9.6% of the total carbon content of the biotic zone and was about 2 orders of magnitude smaller than the epilithic lichen dry weight at a location some 7 degrees north in latitude. The cryptoendolithic microbiota had a uniform density throughout the biotic zone under the rock surface. The results indicate that the cryptoendolithic microbial biomass is small but viable in this unique, extreme ecosystem. |
format |
Article in Journal/Newspaper |
author |
Vestal, J R |
spellingShingle |
Vestal, J R Biomass of the cryptoendolithic microbiota from the Antarctic desert |
author_facet |
Vestal, J R |
author_sort |
Vestal, J R |
title |
Biomass of the cryptoendolithic microbiota from the Antarctic desert |
title_short |
Biomass of the cryptoendolithic microbiota from the Antarctic desert |
title_full |
Biomass of the cryptoendolithic microbiota from the Antarctic desert |
title_fullStr |
Biomass of the cryptoendolithic microbiota from the Antarctic desert |
title_full_unstemmed |
Biomass of the cryptoendolithic microbiota from the Antarctic desert |
title_sort |
biomass of the cryptoendolithic microbiota from the antarctic desert |
publisher |
American Society for Microbiology |
publishDate |
1988 |
url |
http://dx.doi.org/10.1128/aem.54.4.957-959.1988 https://journals.asm.org/doi/pdf/10.1128/aem.54.4.957-959.1988 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctica |
genre_facet |
Antarc* Antarctic Antarctica |
op_source |
Applied and Environmental Microbiology volume 54, issue 4, page 957-959 ISSN 0099-2240 1098-5336 |
op_rights |
https://journals.asm.org/non-commercial-tdm-license |
op_doi |
https://doi.org/10.1128/aem.54.4.957-959.1988 |
container_title |
Applied and Environmental Microbiology |
container_volume |
54 |
container_issue |
4 |
container_start_page |
957 |
op_container_end_page |
959 |
_version_ |
1812179287045832704 |