Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/16365
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dc.contributor.authorMarschner, P.en
dc.contributor.authorGrierson, P.en
dc.contributor.authorRengel, Z.en
dc.date.issued2005en
dc.identifier.citationApplied Soil Ecology, 2005; 28(3):191-201en
dc.identifier.issn0929-1393en
dc.identifier.issn1873-0272en
dc.identifier.urihttp://hdl.handle.net/2440/16365-
dc.descriptionCopyright © 2004 Elsevier B.V. All rights reserved.en
dc.description.abstractAnnual plant species differ in their rhizosphere microbial community composition. However, rhizosphere communities are often investigated under controlled conditions, and it is unclear if perennial plants growing in the field also have rhizosphere communities that are specific to a particular plant species. The aim of our study was to determine the bacterial community composition of three species of Banksia (B. attenuata R. Brown, B. ilicifolia R. Brown and B. menziesii R. Brown) growing in close proximity in a native woodland in Western Australia and to relate community structure to function. All three species are small trees that produce cluster roots in the field following winter rains. Cluster roots and rhizosphere soil were sampled in early spring (August 2001) and again four weeks later (September 2001). Many new cluster roots were formed in the period between the August and the September sampling. Rhizosphere soil pH, percent soil moisture and C and N content did not differ significantly among species or sampling times. However, the bacterial community composition on the cluster roots and in the rhizosphere soil, studied by denaturing gradient gel electrophoresis (DGGE), differed among the three species, with cluster root age class (young or mature to senescing) and also between sampling times. These changes in community composition were accompanied by changes in the activity of some of the enzymes studied. The activities of β-glucosidase and protease increased over time. The three species differed in asparaginase activity, but not in the activity of acid and alkaline phosphatase in the rhizosphere. These results suggest a relationship between the changes in composition and function of bacterial communities.en
dc.description.statementofresponsibilityPetra Marschner, Pauline F. Grierson and Zed Rengelen
dc.description.urihttp://www.elsevier.com/wps/find/journaldescription.cws_home/524518/description#descriptionen
dc.language.isoenen
dc.publisherElsevier Science BVen
dc.subjectBacterial community composition; Banksia; Cluster roots; DGGE; Enzyme activity; Rhizosphereen
dc.titleMicrobial community composition and functioning in the rhizosphere of three Banksia species in native woodland in Western Australiaen
dc.typeJournal articleen
dc.identifier.rmid0020050114en
dc.identifier.doi10.1016/j.apsoil.2004.09.001en
dc.identifier.pubid55291-
pubs.library.collectionEarth and Environmental Sciences publicationsen
pubs.verification-statusVerifieden
pubs.publication-statusPublisheden
dc.identifier.orcidMarschner, P. [0000-0001-6808-0244]en
Appears in Collections:Earth and Environmental Sciences publications

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