Penicillium citrinum VFI-51 as biocontrol agent to control charcoal rot of sorghum (Sorghum bicolor (L.) Moench)
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M. Sreevidya, Subramaniam Gopalakrishnan. (22/4/2016). Penicillium citrinum VFI-51 as biocontrol agent to control charcoal rot of sorghum (Sorghum bicolor (L. ) Moench). African Journal of Microbiology Research, 10 (19), pp. 669-674.
Abstract
In our earlier investigation, a fungal isolate Penicillium citrinum VFI-51 and its secondary metabolite was
reported to have antagonistic potential against Botrytis cinerea, the causative agent of Botrytis gray
mold disease in chickpea. In the present investigation, P. citrinum VFI-51 was further evaluated for its
antagonistic potential against Macrophomina phaseolina, the causative agent of charcoal rot in
sorghum. P. citrinum VFI-51 inhibited M. phaseolina in both dual culture as well as secondary metabolite
production assays. In the in vivo blotter paper assay, under light chamber conditions, P. citrinum VFI-51
controlled 85% of the charcoal rot disease on the roots when compared to the positive control. Under
greenhouse conditions, when M. phaseolina was inoculated by tooth pick method in to the stalk of
sorghum plant, the charcoal rot disease was controlled by 75% in P. citrinum VFI-51 treatment over the
positive control. This study demonstrates the biocontrol potential of P. citrinum VFI-51 against charcoal
rot of sorghum.
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Gopalakrishnan, Subramaniam https://orcid.org/0000-0003-4053-7016