Distribution of Hydrocarbon-Utilizing Microorganisms and Hydrocarbon Biodegradation Potentials in Alaskan Continental Shelf Areas
Hydrocarbon-utilizing microorganisms were enumerated from Alaskan continental shelf areas by using plate counts and a new most-probable-number procedure based on mineralization of 14C-labeled hydrocarbons. Hydrocarbon utilizers were ubiquitously distributed, with no significant overall concentration...
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ftpubmed:oai:pubmedcentral.nih.gov:242950 2023-05-15T15:40:33+02:00 Distribution of Hydrocarbon-Utilizing Microorganisms and Hydrocarbon Biodegradation Potentials in Alaskan Continental Shelf Areas Roubal, George Atlas, Ronald M. 1978-05 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC242950 http://www.ncbi.nlm.nih.gov/pubmed/655706 en eng http://www.ncbi.nlm.nih.gov/pmc/articles/PMC242950 http://www.ncbi.nlm.nih.gov/pubmed/655706 Copyright © 1978 American Society for Microbiology Applied Environmental and Public Health Microbiology Text 1978 ftpubmed 2013-08-29T16:05:52Z Hydrocarbon-utilizing microorganisms were enumerated from Alaskan continental shelf areas by using plate counts and a new most-probable-number procedure based on mineralization of 14C-labeled hydrocarbons. Hydrocarbon utilizers were ubiquitously distributed, with no significant overall concentration differences between sampling regions or between surface water and sediment samples. There were, however, significant seasonal differences in numbers of hydrocarbon utilizers. Distribution of hydrocarbon utilizers within Cook Inlet was positively correlated with occurrence of hydrocarbons in the environment. Hydrocarbon biodegradation potentials were measured by using 14C-radiolabeled hydrocarbon-spiked crude oil. There was no significant correlation between numbers of hydrocarbon utilizers and hydrocarbon biodegradation potentials. The biodegradation potentials showed large seasonal variations in the Beaufort Sea, probably due to seasonal depletion of available nutrients. Non-nutrient-limited biodegradation potentials followed the order hexadecane > naphthalene ≫ pristane > benzanthracene. In Cook Inlet, biodegradation potentials for hexadecane and naphthalene were dependent on availability of inorganic nutrients. Biodegradation potentials for pristane and benzanthracene were restricted, probably by resistance to attack by available enzymes in the indigenous population. Text Beaufort Sea PubMed Central (PMC) |
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PubMed Central (PMC) |
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English |
topic |
Applied Environmental and Public Health Microbiology |
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Applied Environmental and Public Health Microbiology Roubal, George Atlas, Ronald M. Distribution of Hydrocarbon-Utilizing Microorganisms and Hydrocarbon Biodegradation Potentials in Alaskan Continental Shelf Areas |
topic_facet |
Applied Environmental and Public Health Microbiology |
description |
Hydrocarbon-utilizing microorganisms were enumerated from Alaskan continental shelf areas by using plate counts and a new most-probable-number procedure based on mineralization of 14C-labeled hydrocarbons. Hydrocarbon utilizers were ubiquitously distributed, with no significant overall concentration differences between sampling regions or between surface water and sediment samples. There were, however, significant seasonal differences in numbers of hydrocarbon utilizers. Distribution of hydrocarbon utilizers within Cook Inlet was positively correlated with occurrence of hydrocarbons in the environment. Hydrocarbon biodegradation potentials were measured by using 14C-radiolabeled hydrocarbon-spiked crude oil. There was no significant correlation between numbers of hydrocarbon utilizers and hydrocarbon biodegradation potentials. The biodegradation potentials showed large seasonal variations in the Beaufort Sea, probably due to seasonal depletion of available nutrients. Non-nutrient-limited biodegradation potentials followed the order hexadecane > naphthalene ≫ pristane > benzanthracene. In Cook Inlet, biodegradation potentials for hexadecane and naphthalene were dependent on availability of inorganic nutrients. Biodegradation potentials for pristane and benzanthracene were restricted, probably by resistance to attack by available enzymes in the indigenous population. |
format |
Text |
author |
Roubal, George Atlas, Ronald M. |
author_facet |
Roubal, George Atlas, Ronald M. |
author_sort |
Roubal, George |
title |
Distribution of Hydrocarbon-Utilizing Microorganisms and Hydrocarbon Biodegradation Potentials in Alaskan Continental Shelf Areas |
title_short |
Distribution of Hydrocarbon-Utilizing Microorganisms and Hydrocarbon Biodegradation Potentials in Alaskan Continental Shelf Areas |
title_full |
Distribution of Hydrocarbon-Utilizing Microorganisms and Hydrocarbon Biodegradation Potentials in Alaskan Continental Shelf Areas |
title_fullStr |
Distribution of Hydrocarbon-Utilizing Microorganisms and Hydrocarbon Biodegradation Potentials in Alaskan Continental Shelf Areas |
title_full_unstemmed |
Distribution of Hydrocarbon-Utilizing Microorganisms and Hydrocarbon Biodegradation Potentials in Alaskan Continental Shelf Areas |
title_sort |
distribution of hydrocarbon-utilizing microorganisms and hydrocarbon biodegradation potentials in alaskan continental shelf areas |
publishDate |
1978 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC242950 http://www.ncbi.nlm.nih.gov/pubmed/655706 |
genre |
Beaufort Sea |
genre_facet |
Beaufort Sea |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC242950 http://www.ncbi.nlm.nih.gov/pubmed/655706 |
op_rights |
Copyright © 1978 American Society for Microbiology |
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1766372973432799232 |