Root colonizing and soil borne communities of arbuscular mycorrhizal fungi differ among soybean fields with contrasting historical land use

cic.lugarDesarrolloInstituto de Botánica Carlos Spegazzinies
dc.titleRoot colonizing and soil borne communities of arbuscular mycorrhizal fungi differ among soybean fields with contrasting historical land useen
dcterms.abstractArbuscular mycorrhizal fungi (AMF) are a key component of soil microbiota in natural and anthropogenic ecosystems. Even though soil type and climate conditioned land uses in the past, soybean cultivation has overrode such limitations and replaced the earlier diverse agro- and natural ecosystems in many countries of South America. We investigated whether actual diversity patterns of local AMF communities were determined by previous land uses and their intrinsic environmental conditions. We sequenced AMF DNA from root and soil samples collected from current soybean fields with three historical land use situations (HLU): agricultural fields, livestock farming and forest sites. We detected overall high AMF richness: 87 virtual taxa (VT) in soil and 69 VT in soybean roots. Mean number of VT per sample ranged from 8.1 to 19.2; it was not affected by HLU nor type of sample, but correlated with soil texture, pH, and plant density. Conversely, AMF community composition did significantly diverge among HLU and type of sample. A distinctive community composition was observed in roots of historical agricultural fields which differed from any other soil and root sample evaluated in this study. We attribute this finding to variations in the abundance pattern of predominant AMF taxa (<em>Glomeraceae</em>and<em>Gigasporaceae</em>). Our results indicate that soybean cultivation supports relatively high AMF diversity, with apparent legacies from earlier management and natural habitats in the composition of resident AMF communities.en
dcterms.creator.authorFaggioli, Valeria Soledades
dcterms.creator.authorCabello, Marta Noemíes
dcterms.creator.authorGrilli, Gabrieles
dcterms.creator.authorVasar, Martties
dcterms.creator.authorCovacevich, Fernandaes
dcterms.creator.authorÖpik, Maarjaes
dcterms.identifier.urlRecurso Completoes
dcterms.isPartOf.issuevol. 269, no. 1es
dcterms.isPartOf.seriesAgriculture, Ecosystems and Environmentes
dcterms.licenseAttribution-NonCommercial-ShareAlike 4.0 International (BY-NC-SA 4.0)es
dcterms.subjectGlycine maxen
dcterms.subject18S rDNAen
dcterms.subjectLand use changeen
dcterms.subject.materiaAgronomía, reproducción y protección de plantases
Paquete original
Mostrando1 - 1 de 1
Imagen en miniatura
Faggioli Cabello - Root colonizing and soil borne communities of arbuscular.pdf-PDFA.pdf
606.66 KB
Adobe Portable Document Format
Documento Completo