Document Detail


Adaptation of Rhodococcus erythropolis cells for growth and bioremediation under extreme conditions.
MedLine Citation:
PMID:  22146587     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Bioremediation of contaminated sites is rarely performed in nature under ideal growth conditions for bacteria. Extremophiles can grow at extreme values of temperature, pH, ionic strength and metal concentrations, etc., but it may be difficult to find and isolate those possessing the required metabolic activities. In the present work, Rhodococcus erythropolis, a bacterium known to possess a large number of catabolic activities, was adapted to grow at 4-37°C, pH 3-11 and in the presence of up to 7.5% sodium chloride and 1% copper sulfate. The large majority of adapted cells were able to maintain polarization of the membrane under the most difficult conditions tested and to adjust the net surface charge. The cells changed the composition of fatty acids of the cellular membrane according to conditions endured. Changes in the relative proportion of straight, methyl and cyclopropyl saturated, unsaturated and hydroxyl substituted fatty acids were observed, as well as production of polyunsaturated fatty acids unusual in bacteria. The adapted R. erythropolis cells were able to degrade C6-C16 n-alkanes and alcohols under the previously considered extreme conditions for this bacterium.
Authors:
Carla C C R de Carvalho
Related Documents :
4974387 - Development of competence in thymine-starved bacillus subtilis with chromosomes arreste...
1895437 - A case of granulomatous hepatitis after intravesical bacillus calmette-guerin administr...
6154037 - Incorporation and excision of 5-fluorouracil from deoxyribonucleic acid in escherichia ...
1090577 - Rejoining of radiation-induced single-strand breaks in deoxyribonucleic acid of escheri...
11210137 - Stability and bioavailability of antioxidants in garland (chrysanthemum coronarium l.).
16777417 - Boc-lysinated-betulonic acid: a potent, anti-prostate cancer agent.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-11-22
Journal Detail:
Title:  Research in microbiology     Volume:  -     ISSN:  1769-7123     ISO Abbreviation:  -     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-12-7     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8907468     Medline TA:  Res Microbiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011. Published by Elsevier Masson SAS.
Affiliation:
IBB-Institute for Biotechnology and Bioengineering, Centre for Biological and Chemical Engineering, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal; Department of Bioengineering, Instituto Superior Técnico, Universidade Técnica de Lisboa, Portugal.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Normobaric hyperoxia protects the blood brain barrier through inhibiting Nox2 containing NADPH oxida...
Next Document:  Response of leaf-associated bacterial communities to primary acyl-homoserine lactone in the tobacco ...