Role of organic acid chelators in manganese regulation of lignin degradation by Phanerochaete chrysosporium.
Identifieur interne : 000E37 ( Main/Corpus ); précédent : 000E36; suivant : 000E38Role of organic acid chelators in manganese regulation of lignin degradation by Phanerochaete chrysosporium.
Auteurs : J. Perez ; T W JeffriesSource :
- Applied biochemistry and biotechnology [ 0273-2289 ] ; 1993.
English descriptors
- KwdEn :
- Acids (metabolism), Basidiomycota (metabolism), Benzyl Alcohols (metabolism), Biodegradation, Environmental (MeSH), Chelating Agents (metabolism), Enzyme Stability (MeSH), Isoenzymes (metabolism), Lignin (metabolism), Malonates (metabolism), Manganese (metabolism), Oxidation-Reduction (MeSH), Peroxidases (metabolism).
- MESH :
- chemical , metabolism : Acids, Benzyl Alcohols, Chelating Agents, Isoenzymes, Lignin, Malonates, Manganese, Peroxidases.
- metabolism : Basidiomycota.
- Biodegradation, Environmental, Enzyme Stability, Oxidation-Reduction.
Abstract
Nitrogen, carbon, and manganese are potent regulators of lignin degradation, but although nitrogen and carbon elicit a generalizated response when cells are starved, manganese is a relatively specific regulator of lignin and manganese peroxidase (LiP and MnP, respectively). At high manganese levels, MnP is induced, and LiP is repressed. At low Mn levels, MnP is repressed, and LiP is induced. Organic acid chelators are very important in attaining LiP repression with high Mn. Both mineralization and lignin depolymerization are regulated by manganese in the presence of organic acid chelators. As long as the chelators keep Mn(II) and Mn(III) in solution, repression is observed, but eventually, dismutation reactions cause the formation and precipitation of Mn (IV) as MnO2. Repression is immediately relieved, and depolymerization and mineralization proceed at a high rate.
DOI: 10.1007/BF02918992
PubMed: 8323262
Links to Exploration step
pubmed:8323262Le document en format XML
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Perez</name><affiliation><nlm:affiliation>Institute for Microbial and Biochemical Technology, Forest Products Laboratory, Madison, WI 53705.</nlm:affiliation></affiliation></author><author><name sortKey="Jeffries, T W" sort="Jeffries, T W" uniqKey="Jeffries T" first="T W" last="Jeffries">T W Jeffries</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="1993">1993</date><idno type="RBID">pubmed:8323262</idno><idno type="pmid">8323262</idno><idno type="doi">10.1007/BF02918992</idno><idno type="wicri:Area/Main/Corpus">000E37</idno><idno type="wicri:explorRef" wicri:stream="Main" wicri:step="Corpus" wicri:corpus="PubMed">000E37</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Role of organic acid chelators in manganese regulation of lignin degradation by Phanerochaete chrysosporium.</title><author><name sortKey="Perez, J" sort="Perez, J" uniqKey="Perez J" first="J" last="Perez">J. Perez</name><affiliation><nlm:affiliation>Institute for Microbial and Biochemical Technology, Forest Products Laboratory, Madison, WI 53705.</nlm:affiliation></affiliation></author><author><name sortKey="Jeffries, T W" sort="Jeffries, T W" uniqKey="Jeffries T" first="T W" last="Jeffries">T W Jeffries</name></author></analytic><series><title level="j">Applied biochemistry and biotechnology</title><idno type="ISSN">0273-2289</idno><imprint><date when="1993" type="published">1993</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acids (metabolism)</term><term>Basidiomycota (metabolism)</term><term>Benzyl Alcohols (metabolism)</term><term>Biodegradation, Environmental (MeSH)</term><term>Chelating Agents (metabolism)</term><term>Enzyme Stability (MeSH)</term><term>Isoenzymes (metabolism)</term><term>Lignin (metabolism)</term><term>Malonates (metabolism)</term><term>Manganese (metabolism)</term><term>Oxidation-Reduction (MeSH)</term><term>Peroxidases (metabolism)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Acids</term><term>Benzyl Alcohols</term><term>Chelating Agents</term><term>Isoenzymes</term><term>Lignin</term><term>Malonates</term><term>Manganese</term><term>Peroxidases</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Basidiomycota</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Biodegradation, Environmental</term><term>Enzyme Stability</term><term>Oxidation-Reduction</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Nitrogen, carbon, and manganese are potent regulators of lignin degradation, but although nitrogen and carbon elicit a generalizated response when cells are starved, manganese is a relatively specific regulator of lignin and manganese peroxidase (LiP and MnP, respectively). At high manganese levels, MnP is induced, and LiP is repressed. At low Mn levels, MnP is repressed, and LiP is induced. Organic acid chelators are very important in attaining LiP repression with high Mn. Both mineralization and lignin depolymerization are regulated by manganese in the presence of organic acid chelators. As long as the chelators keep Mn(II) and Mn(III) in solution, repression is observed, but eventually, dismutation reactions cause the formation and precipitation of Mn (IV) as MnO2. Repression is immediately relieved, and depolymerization and mineralization proceed at a high rate.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">8323262</PMID><DateCompleted><Year>1993</Year><Month>08</Month><Day>05</Day></DateCompleted><DateRevised><Year>2019</Year><Month>09</Month><Day>09</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0273-2289</ISSN><JournalIssue CitedMedium="Print"><Volume>39-40</Volume><PubDate><Year>1993</Year><Season>Spring</Season></PubDate></JournalIssue><Title>Applied biochemistry and biotechnology</Title><ISOAbbreviation>Appl Biochem Biotechnol</ISOAbbreviation></Journal><ArticleTitle>Role of organic acid chelators in manganese regulation of lignin degradation by Phanerochaete chrysosporium.</ArticleTitle><Pagination><MedlinePgn>227-38</MedlinePgn></Pagination><Abstract><AbstractText>Nitrogen, carbon, and manganese are potent regulators of lignin degradation, but although nitrogen and carbon elicit a generalizated response when cells are starved, manganese is a relatively specific regulator of lignin and manganese peroxidase (LiP and MnP, respectively). At high manganese levels, MnP is induced, and LiP is repressed. At low Mn levels, MnP is repressed, and LiP is induced. Organic acid chelators are very important in attaining LiP repression with high Mn. Both mineralization and lignin depolymerization are regulated by manganese in the presence of organic acid chelators. As long as the chelators keep Mn(II) and Mn(III) in solution, repression is observed, but eventually, dismutation reactions cause the formation and precipitation of Mn (IV) as MnO2. Repression is immediately relieved, and depolymerization and mineralization proceed at a high rate.</AbstractText></Abstract><AuthorList CompleteYN="Y"><Author ValidYN="Y"><LastName>Perez</LastName><ForeName>J</ForeName><Initials>J</Initials><AffiliationInfo><Affiliation>Institute for Microbial and Biochemical Technology, Forest Products Laboratory, Madison, WI 53705.</Affiliation></AffiliationInfo></Author><Author ValidYN="Y"><LastName>Jeffries</LastName><ForeName>T W</ForeName><Initials>TW</Initials></Author></AuthorList><Language>eng</Language><PublicationTypeList><PublicationType UI="D016428">Journal Article</PublicationType><PublicationType UI="D013486">Research Support, U.S. Gov't, Non-P.H.S.</PublicationType></PublicationTypeList></Article><MedlineJournalInfo><Country>United States</Country><MedlineTA>Appl Biochem 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