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Pfeiffer, S.* ; Mitter, B.* ; Oswald, A.* ; Schloter-Hai, B. ; Schloter, M. ; Declerck, S.* ; Sessitsch, A.*

Rhizosphere microbiomes of potato cultivated in the High Andes show stable and dynamic core microbiomes with different responses to plant development.

FEMS Microbiol. Ecol. 93:fiw242 (2017)
DOI PMC
Open Access Green as soon as Postprint is submitted to ZB.
The rhizosphere hosts a rich microflora supporting plant nutrition and health. We examined bacterial rhizosphere microbiota of Solanum tuberosum grown in its center of origin, the Central Andean Highlands, at different vegetation stages and sites at altitudes ranging from 3245 to 4070 m.a.s.l., differing in soil characteristics, climate and the agricultural practices by 454 sequence analysis of 16S rRNA genes. We observed that the taxonomic composition of bacteria repeatedly occurring at particular stages of plant development was almost unaffected by highly diverse environmental conditions. A detailed statistical analysis on the operational taxonomic unit (OTU) level, representing bacterial species, revealed a complex community structure of the rhizosphere. We identified an opportunistic microbiome which comprises OTUs that occur randomly or under specific environmental conditions. In contrast, core microbiome members were found at all sites. The ‘stable’ component of the core microbiome consisted of few ubiquitous OTUs that were continuously abundant in all samples and vegetation stages, whereas the ‘dynamic’ component comprised OTUs that were enriched at specific vegetation stages.
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Publication type Article: Journal article
Document type Scientific Article
Corresponding Author
Keywords rhizosphere; core microbiome; 16S rRNA; potato; Growth-promoting Rhizobacteria; Bacterial Community Structure; 16s Ribosomal-rna; Arabidopsis-thaliana; Interaction Networks; Soil Type; Diversity; Dna; Bradyrhizobium; Populations
ISSN (print) / ISBN 0168-6496
e-ISSN 1574-6941
Quellenangaben Volume: 93, Issue: 2, Pages: , Article Number: fiw242 Supplement: ,
Publisher Wiley
Publishing Place Oxford
Non-patent literature Publications
Reviewing status Peer reviewed