The Novel Disease Caused by in China: Implications for Host Growth, Photosynthesis, and Nutritional Quality.

, an important forage legume on China's Qinghai-Tibetan Plateau, exhibited dark-brown sunken lesions on their stems at the Qingyang Experimental Station of Lanzhou University. The fungus isolated from the diseased tissues was identified as via a multi-locus phylogeny (ITS-----). The pathogenicity was confirmed by Koch's postulates. The inoculated plants showed significantly reduced ( < 0.05) growth parameters (height, root length, and biomass), photosynthetic indices (net rate, transpiration, and stomatal conductance), and nutritional quality (crude protein, crude fat, crude ash, and crude fiber) compared to the controls. additionally infected six legume species (, , , , , and ). Optimal in vitro growth occurred on oatmeal agar (mycelium) and cornmeal agar (spores), with D-sucrose and D-peptone as the best carbon and nitrogen sources. This first report of causing anthracnose advances the understanding of legume anthracnose pathogens.