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Bacterial composition in brassica‐cultivated soils with low and high severity of clubroot
Author(s) -
Saraiva Ana Luiza da R. F.,
Bhering Aline da S.,
Carmo Margarida G. F.,
Andreote Fernando D.,
Dias Armando C.F.,
Coelho Irene da S.
Publication year - 2020
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/jph.12941
Subject(s) - clubroot , biology , soil water , brassica , bradyrhizobium , soil microbiology , composition (language) , brassicaceae , nitrospira , botany , methylobacterium , plant disease , agronomy , microbial population biology , bacteria , microbiology and biotechnology , ecology , 16s ribosomal rna , symbiosis , linguistics , philosophy , genetics
The natural bacterial communities of the soil–plant system are relevant in the process of suppressing diseases caused by soilborne plant pathogens. However, little is known regarding the structure of these communities in soils cultivated with brassica vegetables and their relationship with clubroot severity, a disease caused by Plasmodiophora brassicae . In the present study, the composition of bacterial communities in soils cultivated with cauliflower with distinct levels of disease severity was compared. The bacterial composition in soils with lower and higher clubroot severity differs in phylum and genera levels. Soils associated with plants with lower disease severity showed predominance of Kaistobacter , Flavisolibacter , Sphingobacterium , Koribacter , Nitrospira , Bradyrhizobium and Bacillus . Our study reinforces the importance of management strategies that promote improving the physical–chemical characteristics of soil, which are essential to modulate bacterial populations correlated with plant disease suppression.