Show simple item record

dc.contributor.authorMonrozier, L. J.en_US
dc.contributor.authorBarkovskii, A.en_US
dc.contributor.authorBouillant, M. -L.en_US
dc.contributor.authorBalandreau, J.en_US
dc.date.accessioned2006-09-11T19:47:11Z
dc.date.available2006-09-11T19:47:11Z
dc.date.issued1995-01en_US
dc.identifier.citationBarkovskii, A.; Bouillant, M. -L.; Monrozier, L. J.; Balandreau, J.; (1995). " Azospirillum strains use phenolic compounds as intermediates for electron transfer under oxygen-limiting conditions." Microbial Ecology 29(1): 99-114. <http://hdl.handle.net/2027.42/48113>en_US
dc.identifier.issn0095-3628en_US
dc.identifier.issn1432-184Xen_US
dc.identifier.urihttps://hdl.handle.net/2027.42/48113
dc.description.abstractThe effects of catechol, vanillic, caffeic (CAF), 2-hydroxyphenylacetic, 4-hydroxy- and 3,4-dihydroxybenzoic (3,4-DHBA) acids on the growth of a common rice rhizosphere inhabitant, Azospirillum lipoferum were studied. Two strains of this nonfermenting nitrogen-fixing bacterium were used: a motile strain (4B), and a nonmotile strain (4T). Under atmospheric conditions (pO 2 = 21 kPa), the growth of strain 4T was inhibited by catechol (0.1 m m ) only. None of these compounds affected the growth of strain 413. Under 5 kPa O 2 , no effect was observed on strain 413, whereas three of the six tested phenolics stimulated the growth of strain 4T; maximum effects were observed for 3,4-DHBA and CAF. As revealed by TLC and HPLC, under low oxygen, more new lipophilic compounds were formed from CAF by strain 4T, differing from CAF autooxydation products and from the products obtained under 21 kPa O 2 . It was hypothesized that strain 4T had the ability to use an oxidized derivative of CAF as a terminal electron acceptor. This hypothesis was tested in experiments under nitrogen-fixing conditions, in the absence of oxygen, and in the presence of N 2 O as a reoxidizing agent for CAF. Acetylene was used both as a substrate to measure nitrogenase activity (ARA) and to inhibit the biological transfer of electrons to N 2 O. The addition of CAF in the presence of N 2 O had the same effect on ARA rates as an addition of oxygen. It is concluded that the strain 4T of Azospirillum lipoferum is able to sustain some of its activities (e.g., N 2 fixation) using phenolics as alternative electron acceptors under low oxygen conditions.en_US
dc.format.extent1009626 bytes
dc.format.extent3115 bytes
dc.format.mimetypeapplication/pdf
dc.format.mimetypetext/plain
dc.language.isoen_US
dc.publisherSpringer-Verlag; Springer-Verlag New York Inc.en_US
dc.subject.otherNature Conservationen_US
dc.subject.otherEcologyen_US
dc.subject.otherLife Sciencesen_US
dc.subject.otherGeoecology/Natural Processesen_US
dc.subject.otherMicrobiologyen_US
dc.titleAzospirillum strains use phenolic compounds as intermediates for electron transfer under oxygen-limiting conditionsen_US
dc.typeArticleen_US
dc.subject.hlbsecondlevelNatural Resources and Environmenten_US
dc.subject.hlbsecondlevelMolecular, Cellular and Developmental Biologyen_US
dc.subject.hlbsecondlevelEcology and Evolutionary Biologyen_US
dc.subject.hlbtoplevelHealth Sciencesen_US
dc.subject.hlbtoplevelScienceen_US
dc.description.peerreviewedPeer Revieweden_US
dc.contributor.affiliationumCNRS, Laboratory of Soil Microbial Ecology, Lyon 1 University, 43 Boulevard du 11 Novembre 1918, 6922, Villeurbanne Cedex, France; Civil and Environmental Engineering Department, Environmental & Water Resources Engineering, The University of Michigan, 1351 Beal, 219 EWRE Bldg, 48109-2125, Ann Arbor, Michiganen_US
dc.contributor.affiliationotherCNRS, Laboratory of Soil Microbial Ecology, Lyon 1 University, 43 Boulevard du 11 Novembre 1918, 6922, Villeurbanne Cedex, Franceen_US
dc.contributor.affiliationotherCNRS, Laboratory of Soil Microbial Ecology, Lyon 1 University, 43 Boulevard du 11 Novembre 1918, 6922, Villeurbanne Cedex, Franceen_US
dc.contributor.affiliationotherCNRS, Laboratory of Soil Microbial Ecology, Lyon 1 University, 43 Boulevard du 11 Novembre 1918, 6922, Villeurbanne Cedex, Franceen_US
dc.contributor.affiliationumcampusAnn Arboren_US
dc.identifier.pmid24186642en_US
dc.description.bitstreamurlhttp://deepblue.lib.umich.edu/bitstream/2027.42/48113/1/248_2004_Article_BF00217426.pdfen_US
dc.identifier.doihttp://dx.doi.org/10.1007/BF00217426en_US
dc.identifier.sourceMicrobial Ecologyen_US
dc.owningcollnameInterdisciplinary and Peer-Reviewed


Files in this item

Show simple item record