Biodegradation of simple chemical mixtures in soil.
Identifieur interne : 000855 ( Main/Exploration ); précédent : 000854; suivant : 000856Biodegradation of simple chemical mixtures in soil.
Auteurs : Kirby C. Donnelly [États-Unis] ; Henry J. Huebner ; Larry D. Claxton ; James A. Calvin ; Gordon A. Vos ; Leslie Cizmas ; Ling-Yu HeSource :
- Environmental toxicology and chemistry [ 0730-7268 ] ; 2005.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical , analysis : Soil.
- Biodegradation, Environmental, Mutagenicity Tests, Soil Microbiology, Time Factors.
Abstract
Exogenous microorganisms often are used to enhance bioremediation. This study compared the capabilities of two exogenous microbial cultures and an indigenous population to detoxify a Weswood silt loam soil amended with a simple chemical mixture. The first three treatments were unamended soils inoculated with either indigenous microorganisms, Pseudomonas aeruginosa, or Phanerochaete sordida. Three additional treatments consisted of soil amended with benzo[a]pyrene, pentachlorophenol, and 2,4,6-trinitrotoluene, which were inoculated with either indigenous microorganisms, P. aeruginosa, or P. sordida. Samples were collected from the soils at several time points from 0 through 540 or 720 d, sequentially extracted with methylene chloride and methanol, and analyzed for genotoxicity (using the Salmonella/microsome assay) and chemical degradation. Although the indigenous microorganisms were effective for removal of benzo[a]pyrene, the Pseudomonas bacteria exhibited slightly greater removal rates for 2,4,6,-trinitrotoluene. The fungal cultures were significantly more effective at degrading pentachlorophenol. The day 540 extracts from all model chemical-amended treatments were genotoxic. In most cases, the day 540 extracts were more genotoxic than the day 0 extracts. The results suggest that, under appropriate conditions, enriched cultures of microorganisms may have an increased capacity to degrade individual chemicals. However, the products of degradation in some cases might be more genotoxic than the parent compounds.
DOI: 10.1897/04-630r.1
PubMed: 16398121
Affiliations:
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Vos</name></author><author><name sortKey="Cizmas, Leslie" sort="Cizmas, Leslie" uniqKey="Cizmas L" first="Leslie" last="Cizmas">Leslie Cizmas</name></author><author><name sortKey="He, Ling Yu" sort="He, Ling Yu" uniqKey="He L" first="Ling-Yu" last="He">Ling-Yu He</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="2005">2005</date><idno type="RBID">pubmed:16398121</idno><idno type="pmid">16398121</idno><idno type="doi">10.1897/04-630r.1</idno><idno type="wicri:Area/Main/Corpus">000802</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000802</idno><idno type="wicri:Area/Main/Curation">000802</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Curation">000802</idno><idno type="wicri:Area/Main/Exploration">000802</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Biodegradation of simple chemical mixtures in soil.</title><author><name sortKey="Donnelly, Kirby C" sort="Donnelly, Kirby C" uniqKey="Donnelly K" first="Kirby C" last="Donnelly">Kirby C. Donnelly</name><affiliation wicri:level="1"><nlm:affiliation>Department of Veterinary Integrative Biosciences, 4458 TAMU, Texas A&M University, College Station, Texas 77843-4458, USA. kdonnelly@cvm.tamu.edu</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Veterinary Integrative Biosciences, 4458 TAMU, Texas A&M University, College Station, Texas 77843-4458</wicri:regionArea><wicri:noRegion>Texas 77843-4458</wicri:noRegion></affiliation></author><author><name sortKey="Huebner, Henry J" sort="Huebner, Henry J" uniqKey="Huebner H" first="Henry J" last="Huebner">Henry J. Huebner</name></author><author><name sortKey="Claxton, Larry D" sort="Claxton, Larry D" uniqKey="Claxton L" first="Larry D" last="Claxton">Larry D. Claxton</name></author><author><name sortKey="Calvin, James A" sort="Calvin, James A" uniqKey="Calvin J" first="James A" last="Calvin">James A. Calvin</name></author><author><name sortKey="Vos, Gordon A" sort="Vos, Gordon A" uniqKey="Vos G" first="Gordon A" last="Vos">Gordon A. Vos</name></author><author><name sortKey="Cizmas, Leslie" sort="Cizmas, Leslie" uniqKey="Cizmas L" first="Leslie" last="Cizmas">Leslie Cizmas</name></author><author><name sortKey="He, Ling Yu" sort="He, Ling Yu" uniqKey="He L" first="Ling-Yu" last="He">Ling-Yu He</name></author></analytic><series><title level="j">Environmental toxicology and chemistry</title><idno type="ISSN">0730-7268</idno><imprint><date when="2005" type="published">2005</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Biodegradation, Environmental (MeSH)</term><term>Mutagenicity Tests (MeSH)</term><term>Soil (analysis)</term><term>Soil Microbiology (MeSH)</term><term>Time Factors (MeSH)</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Dépollution biologique de l'environnement (MeSH)</term><term>Facteurs temps (MeSH)</term><term>Microbiologie du sol (MeSH)</term><term>Sol (analyse)</term><term>Tests de mutagénicité (MeSH)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Soil</term></keywords><keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Sol</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biodegradation, Environmental</term><term>Mutagenicity Tests</term><term>Soil Microbiology</term><term>Time Factors</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Dépollution biologique de l'environnement</term><term>Facteurs temps</term><term>Microbiologie du sol</term><term>Tests de mutagénicité</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Exogenous microorganisms often are used to enhance bioremediation. This study compared the capabilities of two exogenous microbial cultures and an indigenous population to detoxify a Weswood silt loam soil amended with a simple chemical mixture. The first three treatments were unamended soils inoculated with either indigenous microorganisms, Pseudomonas aeruginosa, or Phanerochaete sordida. Three additional treatments consisted of soil amended with benzo[a]pyrene, pentachlorophenol, and 2,4,6-trinitrotoluene, which were inoculated with either indigenous microorganisms, P. aeruginosa, or P. sordida. Samples were collected from the soils at several time points from 0 through 540 or 720 d, sequentially extracted with methylene chloride and methanol, and analyzed for genotoxicity (using the Salmonella/microsome assay) and chemical degradation. Although the indigenous microorganisms were effective for removal of benzo[a]pyrene, the Pseudomonas bacteria exhibited slightly greater removal rates for 2,4,6,-trinitrotoluene. The fungal cultures were significantly more effective at degrading pentachlorophenol. The day 540 extracts from all model chemical-amended treatments were genotoxic. In most cases, the day 540 extracts were more genotoxic than the day 0 extracts. The results suggest that, under appropriate conditions, enriched cultures of microorganisms may have an increased capacity to degrade individual chemicals. However, the products of degradation in some cases might be more genotoxic than the parent compounds.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">16398121</PMID><DateCompleted><Year>2006</Year><Month>03</Month><Day>02</Day></DateCompleted><DateRevised><Year>2019</Year><Month>09</Month><Day>17</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0730-7268</ISSN><JournalIssue CitedMedium="Print"><Volume>24</Volume><Issue>11</Issue><PubDate><Year>2005</Year><Month>Nov</Month></PubDate></JournalIssue><Title>Environmental toxicology and chemistry</Title><ISOAbbreviation>Environ Toxicol Chem</ISOAbbreviation></Journal><ArticleTitle>Biodegradation of simple chemical mixtures in soil.</ArticleTitle><Pagination><MedlinePgn>2839-45</MedlinePgn></Pagination><Abstract><AbstractText>Exogenous microorganisms often are used to enhance bioremediation. This study compared the capabilities of two exogenous microbial cultures and an indigenous population to detoxify a Weswood silt loam soil amended with a simple chemical mixture. The first three treatments were unamended soils inoculated with either indigenous microorganisms, Pseudomonas aeruginosa, or Phanerochaete sordida. Three additional treatments consisted of soil amended with benzo[a]pyrene, pentachlorophenol, and 2,4,6-trinitrotoluene, which were inoculated with either indigenous microorganisms, P. aeruginosa, or P. sordida. Samples were collected from the soils at several time points from 0 through 540 or 720 d, sequentially extracted with methylene chloride and methanol, and analyzed for genotoxicity (using the Salmonella/microsome assay) and chemical degradation. Although the indigenous microorganisms were effective for removal of benzo[a]pyrene, the Pseudomonas bacteria exhibited slightly greater removal rates for 2,4,6,-trinitrotoluene. The fungal cultures were significantly more effective at degrading pentachlorophenol. The day 540 extracts from all model chemical-amended treatments were genotoxic. In most cases, the day 540 extracts were more genotoxic than the day 0 extracts. The results suggest that, under appropriate conditions, enriched cultures of microorganisms may have an increased capacity to degrade individual chemicals. However, the products of degradation in some cases might be more genotoxic than the parent compounds.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Donnelly</LastName><ForeName>Kirby C</ForeName><Initials>KC</Initials><AffiliationInfo><Affiliation>Department of Veterinary Integrative Biosciences, 4458 TAMU, Texas A&M University, College Station, Texas 77843-4458, USA. kdonnelly@cvm.tamu.edu</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Huebner</LastName><ForeName>Henry J</ForeName><Initials>HJ</Initials></Author><Author ValidYN="Y"><LastName>Claxton</LastName><ForeName>Larry D</ForeName><Initials>LD</Initials></Author><Author ValidYN="Y"><LastName>Calvin</LastName><ForeName>James A</ForeName><Initials>JA</Initials></Author><Author ValidYN="Y"><LastName>Vos</LastName><ForeName>Gordon A</ForeName><Initials>GA</Initials></Author><Author ValidYN="Y"><LastName>Cizmas</LastName><ForeName>Leslie</ForeName><Initials>L</Initials></Author><Author ValidYN="Y"><LastName>He</LastName><ForeName>Ling-Yu</ForeName><Initials>LY</Initials></Author></AuthorList><Language>eng</Language><GrantList CompleteYN="Y"><Grant><GrantID>P42 ES04917</GrantID><Acronym>ES</Acronym><Agency>NIEHS NIH HHS</Agency><Country>United States</Country></Grant></GrantList><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D052061">Research Support, N.I.H., Extramural</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Environ Toxicol Chem</MedlineTA><NlmUniqueID>8308958</NlmUniqueID><ISSNLinking>0730-7268</ISSNLinking></MedlineJournalInfo><ChemicalList><Chemical><RegistryNumber>0</RegistryNumber><NameOfSubstance UI="D012987">Soil</NameOfSubstance></Chemical></ChemicalList><CitationSubset>IM</CitationSubset><MeshHeadingList><MeshHeading><DescriptorName UI="D001673" MajorTopicYN="N">Biodegradation, Environmental</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D009152" MajorTopicYN="N">Mutagenicity Tests</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D012987" MajorTopicYN="N">Soil</DescriptorName><QualifierName UI="Q000032" MajorTopicYN="Y">analysis</QualifierName></MeshHeading><MeshHeading><DescriptorName UI="D012988" MajorTopicYN="Y">Soil Microbiology</DescriptorName></MeshHeading><MeshHeading><DescriptorName UI="D013997" MajorTopicYN="N">Time Factors</DescriptorName></MeshHeading></MeshHeadingList></MedlineCitation><PubmedData><History><PubMedPubDate PubStatus="pubmed"><Year>2006</Year><Month>1</Month><Day>10</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="medline"><Year>2006</Year><Month>3</Month><Day>3</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate><PubMedPubDate PubStatus="entrez"><Year>2006</Year><Month>1</Month><Day>10</Day><Hour>9</Hour><Minute>0</Minute></PubMedPubDate></History><PublicationStatus>ppublish</PublicationStatus><ArticleIdList><ArticleId IdType="pubmed">16398121</ArticleId><ArticleId IdType="doi">10.1897/04-630r.1</ArticleId></ArticleIdList></PubmedData></pubmed><affiliations><list><country><li>États-Unis</li></country></list><tree><noCountry><name sortKey="Calvin, James A" sort="Calvin, James A" uniqKey="Calvin J" first="James A" last="Calvin">James A. Calvin</name><name sortKey="Cizmas, Leslie" sort="Cizmas, Leslie" uniqKey="Cizmas L" first="Leslie" last="Cizmas">Leslie Cizmas</name><name sortKey="Claxton, Larry D" sort="Claxton, Larry D" uniqKey="Claxton L" first="Larry D" last="Claxton">Larry D. Claxton</name><name sortKey="He, Ling Yu" sort="He, Ling Yu" uniqKey="He L" first="Ling-Yu" last="He">Ling-Yu He</name><name sortKey="Huebner, Henry J" sort="Huebner, Henry J" uniqKey="Huebner H" first="Henry J" last="Huebner">Henry J. Huebner</name><name sortKey="Vos, Gordon A" sort="Vos, Gordon A" uniqKey="Vos G" first="Gordon A" last="Vos">Gordon A. Vos</name></noCountry><country name="États-Unis"><noRegion><name sortKey="Donnelly, Kirby C" sort="Donnelly, Kirby C" uniqKey="Donnelly K" first="Kirby C" last="Donnelly">Kirby C. Donnelly</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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