Journal
3 BIOTECH
Volume 12, Issue 8, Pages -Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s13205-022-03216-0
Keywords
Ascomycota; Colletotrichum lindemuthianum; Multigene phylogeny; Plant disease
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Funding
- Council of Scientific and Industrial Research (CSIR), Govt. of India [09/1238(0001)/2019-EMR-I]
- School of Biotechnology, SKUAST-Jammu
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This study investigated Colletotrichum strains from common beans in the northern Himalayas of India based on both morphological and DNA sequence data, and identified C. lindemuthianum as the causative agent of anthracnose, which exhibited variation in symptomology and disease progression.
With an annual loss of up to 100%, anthracnose caused by Colletotrichum is one of the most devastating diseases of common beans (Phaseolus vulgaris L.). Due to few distinctive morphological characters, Colletotrichum species are frequently misidentified. In India, several Colletotrichum species have been reported as pathogens of Phaseolus species, but none had previously been validated by means of molecular tools. In this study, we studied Colletotrichum strains from common beans cv. Bhaderwah-Rajmash from the northern Himalayas of India based on both morphological and DNA sequence data of six loci, namely ITS, gapdh, chs-1, his3, act, tub2. The strains were identified as C. lindemuthianum that belongs to the C. orbiculare species complex. Representative C. lindemuthianum strains tested on Phaseolus vulgaris cv. Bhaderwah-Rajmash were pathogenic and exhibited variation in symptomology and disease progression. By identifying the causal agent, we provided substantial information to develop the best control strategies for anthracnose of Phaseolus vulgaris from the northern Himalayas of India.
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