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- Title
Agresividad de aislados de Bipolaris sorokiniana y Alternaria alternata en variedades de trigo en México.
- Authors
Itzel Mata-Santoyo, Cassandra; Gerardo Leyva-Mir, Santos; Camacho-Tapia, Moisés; Manuel Tovar-Pedraza, Juan; Huerta-Espino, Julio; Eduardo Villaseñor-Mir, Héctor; García-León, Elizabeth
- Abstract
From samples of wheat cultivar CIRNO C2008 with leaf blight symptoms from southern Sonora, four isolates of Bipolaris sorokiniana and Alternaria alternata were obtained. The fungal species were identified by morphological characterization and ITS sequence analysis of rDNA. Thirteen bread wheat (Triticum aestivum) and 6 durum wheat (Triticum durum) cultivars were inoculated with the eight fungal isolates under greenhouse conditions. The aggressiveness of the isolates was assessed using a severity scale of 1 to 9, with 1 being minimal lesions and 9 being necrosis and generalized chlorosis indicating susceptibility. Cultivars Vicam S70, Kronstad F2004, and Río Bravo C2016 were moderately resistant to B. sorokiniana; while Bárcenas S2002, Morocco, Borlaug 100 F2014, Bacanora T88, Luminaria F2012, the advanced line C, Villa Juárez F2009, Maya S2007, Urbina S2007, PBW343, Nana F2007, Local Red, Noio and JC advanced line were highly susceptible. Additionally, it was observed that A. alternata is a secondary pathogen that invades the lesions caused by B. sorokiniana.
- Publication
Revista Mexicana de Fitopatología, 2018, Vol 36, Issue 3, p432
- ISSN
0185-3309
- Publication type
Article
- DOI
10.18781/R.MEX.FIT.1803-3