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- Title
Pectobacterium punjabense causing soft rot and blackleg of potato in Sinaloa, Mexico.
- Authors
Palafox-Leal, Noe Leonardo; Castillo Batista, Jesus Christopher; Santos-Cervantes, María Elena; Méndez-Lozano, Jesus; Rodríguez-Negrete, Edgar Antonio; Cervantes-Cárdenas, Libnih Abdeel; Leyva-López, Norma Elena
- Abstract
Pectinolytic plant-bacteria members of the Pectobacterium genera represent an important threat to potato (Solanum tuberosum L.) cultivation worldwide. Despite several Pectobaterium species having been described infecting cultivated plants in Mexico, studies of its occurrence in economically important crops including potato are limited. In the present study, 51 Pectobacterium isolates were obtained from potato plants collected in January 2020 in Sinaloa state, showing blackleg and soft rot symptoms. Biochemical and molecular analysis confirmed that 13 out of the 51 obtained isolates corresponded to Pectobacterium punjabense. Virulence analysis of LFLA-136 and LFLA-138 representative isolates showed that both display similar levels of aggressiveness with different tuber maceration capacities on the two evaluated potato varieties. Additionally, putative control strategies were evaluated by in vitro inhibition assays using chemical and biological products, with biological control by Trichoderma harzianum (T-22) being the most effective treatment. Our data highlights the importance of studying the occurrence of Pectobacterium species infecting potatoes in Mexico. To our knowledge, this is the first report of P. punjabense causing soft rot and blackleg of potato in Mexico.
- Subjects
MEXICO; SINALOA (Mexico : State); ERWINIA; BIOLOGICAL products; CULTIVATED plants; TRICHODERMA harzianum; TUBERS; POTATOES
- Publication
European Journal of Plant Pathology, 2024, Vol 168, Issue 1, p29
- ISSN
0929-1873
- Publication type
Article
- DOI
10.1007/s10658-023-02725-9