| Full text | |
| Author(s): |
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]
Total Authors: 9
|
| Affiliation: | [1] Sao Paulo State Univ Unesp, Sch Agr, Dept Plant Protect, Ave Univ 3780, BR-18610034 Botucatu, SP - Brazil
Total Affiliations: 1
|
| Document type: | Journal article |
| Source: | European Journal of Plant Pathology; v. 160, n. 1 FEB 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
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) | |
| FAPESP's process: | 16/20737-6 - CHARACTERIZATION OF RESISTANCE MECHANISMS AND EVALUATION OF AGRONOMIC PARAMETERS OF COMMON BEAN CULTIVARS INFECTED BY Curtobacterium flaccumfaciens PV. flaccumfaciens |
| Grantee: | Antonio Carlos Maringoni |
| Support Opportunities: | Regular Research Grants |