Microbial Mineralization in Soils and Plant Material from Antarctica
The process of microbial mineralization was analyzed in soil samples and plant material, mainly lichens, from the maritime and continental Antarctic (King George Island and Wilkes Land, resp.) to examine effects of temperature and moisture. Three methods were used: total C02-evolution and biological...
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ftdtic:ADP007319 2023-05-15T13:38:48+02:00 Microbial Mineralization in Soils and Plant Material from Antarctica Boelter, Manfred KIEL UNIV (GERMANY F R) 1992-03 text/html http://www.dtic.mil/docs/citations/ADP007319 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007319 en eng http://www.dtic.mil/docs/citations/ADP007319 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Geography Microbiology Geology Geochemistry and Mineralogy *BIOCHEMICAL OXYGEN DEMAND *GLUCOSE *LICHENS *MINERALIZATION *ORGANIC MATERIALS *SOILS *ANTARCTIC REGIONS *PLANTS(BOTANY) COMPARISON INDICATORS ISLANDS MATERIALS MICROORGANISMS MODELS MOISTURE OXYGEN POPULATION QUALITY TEMPERATURE SYMPOSIA CARBON DIOXIDE METABOLISM ADAPTIVE SYSTEMS Component Reports *Microbial populations Text 1992 ftdtic 2016-02-19T17:39:36Z The process of microbial mineralization was analyzed in soil samples and plant material, mainly lichens, from the maritime and continental Antarctic (King George Island and Wilkes Land, resp.) to examine effects of temperature and moisture. Three methods were used: total C02-evolution and biological oxygen demand as a measure of general metabolic activity, and remineralization of 14C-labeled glucose (which may serve as a model for dissolved organic matter) as a measure of the activity of heterotrophic microorganisms. These methods are used as indicators for different fractions of organic material and microbial populations. A comparison of the results of these methods showed that the portion of respired material from 14C-labeled glucose may even outcompete the totally metabolized material. These data differ with respect to the parent material and thus give an indication of its quality and the actual activity of the bacterial population which is considered to be mainly responsible for the turnover and mineralization of dissolved organic matter. This article is from 'Proceedings of the International Conference on the Role of the Polar Regions in Global Change Held in Fairbanks, Alaska on 11-15 June 990. Volume 2', AD-A253 028, p418-422. See also Volume 1, AD-A253 027. Text Antarc* Antarctic Antarctica King George Island Wilkes Land Alaska Defense Technical Information Center: DTIC Technical Reports database Antarctic Fairbanks King George Island Wilkes Land ENVELOPE(120.000,120.000,-69.000,-69.000) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Geography Microbiology Geology Geochemistry and Mineralogy *BIOCHEMICAL OXYGEN DEMAND *GLUCOSE *LICHENS *MINERALIZATION *ORGANIC MATERIALS *SOILS *ANTARCTIC REGIONS *PLANTS(BOTANY) COMPARISON INDICATORS ISLANDS MATERIALS MICROORGANISMS MODELS MOISTURE OXYGEN POPULATION QUALITY TEMPERATURE SYMPOSIA CARBON DIOXIDE METABOLISM ADAPTIVE SYSTEMS Component Reports *Microbial populations |
spellingShingle |
Geography Microbiology Geology Geochemistry and Mineralogy *BIOCHEMICAL OXYGEN DEMAND *GLUCOSE *LICHENS *MINERALIZATION *ORGANIC MATERIALS *SOILS *ANTARCTIC REGIONS *PLANTS(BOTANY) COMPARISON INDICATORS ISLANDS MATERIALS MICROORGANISMS MODELS MOISTURE OXYGEN POPULATION QUALITY TEMPERATURE SYMPOSIA CARBON DIOXIDE METABOLISM ADAPTIVE SYSTEMS Component Reports *Microbial populations Boelter, Manfred Microbial Mineralization in Soils and Plant Material from Antarctica |
topic_facet |
Geography Microbiology Geology Geochemistry and Mineralogy *BIOCHEMICAL OXYGEN DEMAND *GLUCOSE *LICHENS *MINERALIZATION *ORGANIC MATERIALS *SOILS *ANTARCTIC REGIONS *PLANTS(BOTANY) COMPARISON INDICATORS ISLANDS MATERIALS MICROORGANISMS MODELS MOISTURE OXYGEN POPULATION QUALITY TEMPERATURE SYMPOSIA CARBON DIOXIDE METABOLISM ADAPTIVE SYSTEMS Component Reports *Microbial populations |
description |
The process of microbial mineralization was analyzed in soil samples and plant material, mainly lichens, from the maritime and continental Antarctic (King George Island and Wilkes Land, resp.) to examine effects of temperature and moisture. Three methods were used: total C02-evolution and biological oxygen demand as a measure of general metabolic activity, and remineralization of 14C-labeled glucose (which may serve as a model for dissolved organic matter) as a measure of the activity of heterotrophic microorganisms. These methods are used as indicators for different fractions of organic material and microbial populations. A comparison of the results of these methods showed that the portion of respired material from 14C-labeled glucose may even outcompete the totally metabolized material. These data differ with respect to the parent material and thus give an indication of its quality and the actual activity of the bacterial population which is considered to be mainly responsible for the turnover and mineralization of dissolved organic matter. This article is from 'Proceedings of the International Conference on the Role of the Polar Regions in Global Change Held in Fairbanks, Alaska on 11-15 June 990. Volume 2', AD-A253 028, p418-422. See also Volume 1, AD-A253 027. |
author2 |
KIEL UNIV (GERMANY F R) |
format |
Text |
author |
Boelter, Manfred |
author_facet |
Boelter, Manfred |
author_sort |
Boelter, Manfred |
title |
Microbial Mineralization in Soils and Plant Material from Antarctica |
title_short |
Microbial Mineralization in Soils and Plant Material from Antarctica |
title_full |
Microbial Mineralization in Soils and Plant Material from Antarctica |
title_fullStr |
Microbial Mineralization in Soils and Plant Material from Antarctica |
title_full_unstemmed |
Microbial Mineralization in Soils and Plant Material from Antarctica |
title_sort |
microbial mineralization in soils and plant material from antarctica |
publishDate |
1992 |
url |
http://www.dtic.mil/docs/citations/ADP007319 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007319 |
long_lat |
ENVELOPE(120.000,120.000,-69.000,-69.000) |
geographic |
Antarctic Fairbanks King George Island Wilkes Land |
geographic_facet |
Antarctic Fairbanks King George Island Wilkes Land |
genre |
Antarc* Antarctic Antarctica King George Island Wilkes Land Alaska |
genre_facet |
Antarc* Antarctic Antarctica King George Island Wilkes Land Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADP007319 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766111256344788992 |