Bacterial, archaeal and micro-eukaryotic communities characterize a disease-suppressive or conducive soil and a cultivar resistant or susceptible to common scab

0510023 - BC 2020 RIV GB eng J - Článek v odborném periodiku
Kopecký, J. - Samková, Z. - Sarikhani, E. - Kyselková, Martina - Omelka, M. - Krištůfek, Václav - Diviš, J. - Grundmann, G.G. - Moënne-Loccoz, Y. - Ságová-Marečková, M.
Bacterial, archaeal and micro-eukaryotic communities characterize a disease-suppressive or conducive soil and a cultivar resistant or susceptible to common scab.
Scientific Reports. Roč. 9, č. 1 (2019), č. článku 14883. ISSN 2045-2322. E-ISSN 2045-2322
Institucionální podpora: RVO:60077344
Klíčová slova: cultivar resistant * common scab * microbiome profiles * tuberosphere soil * potato periderm
Obor OECD: Agronomy, plant breeding and plant protection
Impakt faktor: 3.998, rok: 2019
Způsob publikování: Open access
https://www.nature.com/articles/s41598-019-51570-6.pdf

Control of common scab disease can be reached by resistant cultivars or suppressive soils. Both mechanisms are likely to translate into particular potato microbiome profiles, but the relative importance of each is not known. Here, microbiomes of bulk and tuberosphere soil and of potato periderm were studied in one resistant and one susceptible cultivar grown in a conducive and a suppressive field. Disease severity was suppressed similarly by both means yet, the copy numbers of txtB gene (coding for a pathogenicity determinant) were similar in both soils but higher in periderms of the susceptible cultivar from conducive soil. Illumina sequencing of 16S rRNA genes for bacteria (completed by 16S rRNA microarray approach) and archaea, and of 18S rRNA genes for micro-eukarytes showed that in bacteria, the more important was the effect of cultivar and diversity decreased from resistant cultivar to bulk soil to susceptible cultivar. The major changes occurred in proportions of Actinobacteria, Chloroflexi, and Proteobacteria. In archaea and micro-eukaryotes, differences were primarily due to the suppressive and conducive soil. The effect of soil suppressiveness x cultivar resistance depended on the microbial community considered, but differed also with respect to soil and plant nutrient contents particularly in N, S and Fe.
Trvalý link: http://hdl.handle.net/11104/0300728