| Resistance of marine bacterioneuston to solar radiation. | |
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MedLine Citation:
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PMID: 16151115 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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A total of 90 bacterial strains were isolated from the sea surface microlayer (i.e., bacterioneuston) and underlying waters (i.e., bacterioplankton) from two sites of the northwestern Mediterranean Sea. The strains were identified by sequence analysis, and growth recovery was investigated after exposure to simulated solar radiation. Bacterioneuston and bacterioplankton isolates were subjected to six different exposure times, ranging from 0.5 to 7 h of simulated noontime solar radiation. Following exposure, the growth of each isolate was monitored, and different classes of resistance were determined according to the growth pattern. Large interspecific differences among the 90 marine isolates were observed. Medium and highly resistant strains accounted for 41% and 22% of the isolates, respectively, and only 16% were sensitive strains. Resistance to solar radiation was equally distributed within the bacterioneuston and bacterioplankton. Relative contributions to the highly resistant class were 43% for gamma-proteobacteria and 14% and 8% for alpha-proteobacteria and the Cytophaga/Flavobacterium/Bacteroides (CFB) group, respectively. Within the gamma-proteobacteria, the Pseudoalteromonas and Alteromonas genera appeared to be highly resistant to solar radiation. The majority of the CFB group (76%) had medium resistance. Our study further provides evidence that pigmented bacteria are not more resistant to solar radiation than nonpigmented bacteria. |
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Authors:
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Hélène Agogué; Fabien Joux; Ingrid Obernosterer; Philippe Lebaron |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Applied and environmental microbiology Volume: 71 ISSN: 0099-2240 ISO Abbreviation: Appl. Environ. Microbiol. Publication Date: 2005 Sep |
Date Detail:
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Created Date: 2005-09-09 Completed Date: 2005-11-01 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 7605801 Medline TA: Appl Environ Microbiol Country: United States |
Other Details:
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Languages: eng Pagination: 5282-9 Citation Subset: IM |
Affiliation:
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Observatoire Océanologique, Université Pierre et Marie Curie, UMR 7621-INSU-CNRS, BP44, 66651 Banyuls-sur-Mer, France. |
| Data Bank Information | |
Bank Name/Acc. No.:
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GENBANK/AY576689; AY576690; AY576691; AY576692; AY576693; AY576694; AY576695; AY576696; AY576697; AY576698; AY576699; AY576700; AY576701; AY576702; AY576703; AY576704; AY576705; AY576706; AY576707; AY576708; AY576709; AY576710; AY576711; AY576712; AY576713; AY576714; AY576715; AY576716; AY576717; AY576718; AY576719; AY576720; AY576721; AY576722; AY576723; AY576724; AY576725; AY576726; AY576727; AY576728; AY576729; AY576730; AY576731; AY576732; AY576733; AY576734; AY576735; AY576736; AY576737; AY576738; AY576739; AY576740; AY576741; AY576742; AY576743; AY576744; AY576745; AY576746; AY576747; AY576748; AY576749; AY576750; AY576751; AY576752; AY576753; AY576754; AY576755; AY576756; AY576757; AY576758; AY576759; AY576760; AY576761; AY576762; AY576763; AY576764; AY576765; AY576766; AY576767; AY576768; AY576769; AY576770; AY576771; AY576772; AY576773; AY576774; AY576775; AY576776; AY576777 |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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DNA, Bacterial
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analysis DNA, Ribosomal / analysis Gram-Negative Bacteria / classification, growth & development, isolation & purification, radiation effects* Molecular Sequence Data Plankton / classification, growth & development, isolation & purification, radiation effects RNA, Ribosomal, 16S / genetics Radiation Tolerance* Seawater / microbiology Sequence Analysis, DNA Sunlight* |
| Chemical | |
Reg. No./Substance:
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0/DNA, Bacterial; 0/DNA, Ribosomal; 0/RNA, Ribosomal, 16S |
| Comments/Corrections | |
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