Breeding for soil-borne pathogen resistance impacts active rhizosphere microbiome of common bean

Autor(es)

Mendes, Lucas William ^{[1, 2]} ; Mendes, Rodrigo ^[3] ; Raaijmakers, Jos M. ^{[1, 4]} ; Tsai, Siu Mui ^[2]

Afiliação do(s) autor(es)

^[1] Netherlands Inst Ecol NIOO KNAW, Dept Microbial Ecol, NL-6708 PB Wageningen - Netherlands

^[2] Univ Sao Paulo, Ctr Nucl Energy Agr CENA, Cell & Mol Biol Lab, BR-13416000 Piracicaba, SP - Brazil

^[3] Embrapa Meio Ambiente, BR-18020000 Jaguariuna - Brazil

^[4] Leiden Univ, Inst Biol, Leiden - Netherlands

• Tipo de documento: Artigo Científico
• Fonte: ISME Journal; v. 12, n. 12, p. 3038-3042, DEC 2018.
• Citações Web of Science: 5

Resumo

Over the past century, plant breeding programs have substantially improved plant growth and health, but have not yet considered the potential effects on the plant microbiome. Here, we conducted metatranscriptome analysis to determine if and how breeding for resistance of common bean against the root pathogen Fusarium oxysporum (Fox) affected gene expression in the rhizobacterial community. Our data revealed that the microbiome of the Fox-resistant cultivar presented a significantly higher expression of genes associated with nutrient metabolism, motility, chemotaxis, and the biosynthesis of the antifungal compounds phenazine and colicin V. Network analysis further revealed a more complex community for Fox-resistant cultivar and indicated Paenibacillus as a keystone genus in the rhizosphere microbiome. We suggest that resistance breeding in common bean has unintentionally co-selected for plant traits that strengthen the rhizosphere microbiome network structure and enrich for specific beneficial bacterial genera that express antifungal traits involved in plant protection against infections by root pathogens. (AU)

• Processo FAPESP: 15/00251-9 - Análise do microbioma associado ao sistema radicular de feijão
• Beneficiário: Lucas William Mendes
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Pós-Doutorado
• Processo FAPESP: 14/03217-3 - Microbioma da rizosfera de feijão resistente ao patógeno de solo Fusarium oxysporum
• Beneficiário: Lucas William Mendes
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado