Abstract
Among the 194 Fusarium verticillioides isolates screened from 127 cereal samples, 176 were fumonisin producers and others were non-producers. Representative nine Fusarium verticillioides strains along with one reference standard strain MTCC156 were selected to study their morphological, pathological and mycotoxicological variations by conventional and molecular approaches. Fusarium verticillioides strains FVM86, FVM146, FV200 and FVS3 showed significant pathogenicity and also in pigmentation production but varied in fumonisin production. Fusarium verticillioides strain FVP19 recorded variations in all the assays. Fusarium verticillioides strain FVM42 showed drastic phenotypic variation and it also produced fumonisin. Genetic variation among the strains was independent of geographic area of origin but depended on their ability to produce fumonisin. The strains were independent in their cultural characteristics, pigmentation production, pathogenicity assays, fumonisin production and in their genetic variability without having any correlation.
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Acknowledgements
We thank the Indian Council of Medical Research (ICMR) for providing grants through ICMR-SRF. The authors acknowledge Bhavani P.V and Sowmya rao N for their kind help and support in conducting genotypic variation assay, Deepthi B.V., and Poorna Chandra Rao K for their kind co-operation for conducting stalk rot assay in the field and Institute of Excellence, Vijnana bhavan, Mysore, for their valuable support.
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Deepa, N., Rakesh, S. & Sreenivasa, M.Y. Morphological, pathological and mycotoxicological variations among Fusarium verticillioides isolated from cereals. 3 Biotech 8, 105 (2018). https://doi.org/10.1007/s13205-018-1136-z
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DOI: https://doi.org/10.1007/s13205-018-1136-z