Fusarium spp. Associated With Root Rot of Pulse Crops and Their Cross-Pathogenicity to Cereal Crops in Montana

• DOI: 10.1094/pdis-04-20-0800-re
• Publication Date: 2020-09-01T14:57:36Z
• Authors: Swarnalatha Moparthi; Mary Burrows; Josephine Mgbechi...; Bright Agindotan
• Keywords: Fusarium culmorum; Root rot; Fusarium solani

Root rot caused by Fusarium species is a major problem in the pulse growing regions of Montana. isolates (n = 112) were obtained from seeds and roots chickpea, dry pea, lentil. Isolates identified comparing sequences internal transcribed spacer region translation elongation factor 1-α Fusarium-ID database. avenaceum was most abundant (28%), followed F. acuminatum (21%), poae (13%), oxysporum (8%), culmorum (6%), redolens sporotrichioides solani (4%), graminearum (2%), torulosum tricinctum (0.9%). The aggressiveness subset 50 that represent various sources isolation tested on three crops two cereal crops. Nonparametric analysis variance conducted ranks disease severity indicated highly aggressive pea chickpea. In lentil, aggressive. barley, avenaceum, solani, culmorum, wheat, graminearum, Two across all found to be cross-pathogenic. One isolate an chickpea lentil seed barley wheat. results indicate multiple spp. can cause root both Rotating these may still lead increase inoculum levels, making crop rotation limited efficacy as management strategy.