Busca avançada
Ano de início
Entree
Conteúdo relacionado
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Survival of Curtobacterium flaccumfaciens pv. flaccumfaciens in the phyllosphere and rhizosphere of crops

Texto completo
Autor(es):
Nascimento, Daniele M. [1] ; Oliveira, Leticia R. [1] ; Melo, Luana L. [1] ; Silva, Joao C. [1] ; Soman, Jose M. [1] ; Ribeiro-Junior, Marcos R. [1] ; Sartori, Maria M. P. [1] ; Silva Junior, Tadeu A. F. [1] ; Maringoni, Antonio C. [1]
Número total de Autores: 9
Afiliação do(s) autor(es):
[1] Sao Paulo State Univ Unesp, Sch Agr, Dept Plant Protect, Ave Univ 3780, BR-18610034 Botucatu, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: European Journal of Plant Pathology; v. 160, n. 1 FEB 2021.
Citações Web of Science: 0
Resumo

Knowledge of the ecological survival niches of Curtobacterium flaccumfaciens pv. flaccumfaciens (Cff), the causal agent of bean bacterial wilt, is essential for the efficient disease management. Our study evaluated the survival of Cff in the phyllospheres and rhizospheres of barley, black oat, canola, common bean, forage turnip, maize, pearl millet, ryegrass, sorghum, soybean, sunflower, velvet bean, wheat and white oat planted in a greenhouse. The aerial parts of the plants were inoculated by spraying a bacterial suspension (10(7) CFU.mL(-1)) from the strain Feij. 2628A, which is resistant to rifampicin and pathogenic to common bean. The soil of the pots was infested with 200 mL of the same suspension. Cff survival was evaluated every seven days for 70 days, and the survival periods were confirmed by selecting strains from all samples and performing PCR with specific primers. Cff survived for at least seven days in the phyllosphere, and 21 days in the rhizosphere of all evaluated crops. Based on our results, barley, black oat, canola, forage turnip, maize, pearl millet, ryegrass, sorghum, soybean, sunflower, velvet bean, wheat and white oat can be potential asymptomatic hosts for Cff, and their cultivation in succession with common bean is not recommended in areas with a history of bacterial wilt occurrence. (AU)

Processo FAPESP: 16/20737-6 - CARACTERIZAÇÃO DOS MECANISMOS DE RESISTÊNCIA E AVALIAÇÃO DOS PARÂMETROS AGRONÔMICOS DE CULTIVARES DE FEIJOEIROS INFECTADOS POR Curtobacterium flaccumfaciens PV. flaccumfaciens
Beneficiário:Antonio Carlos Maringoni
Modalidade de apoio: Auxílio à Pesquisa - Regular