Publications by authors named "U Sivakumar"

Unlabelled: Volatiles produced by the leaves of medicinal plants are increasingly used as a new plant disease management strategy due to their induction of diverse antimicrobial activities, it is highly essential for the development of a new phyto-fumigant product to sustain crop production. The present study attempted to find the active role of associated volatile formulation in the suppression of the growth of under pot culture and field conditions. Damping off disease-causing is a devastating disease that infects the tomato crop from seed sprouting to the seedling stage.

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Maize is an important cereal crop which is severely affected by . The study aims to identify endophytic bacteria of maize root and leaf apoplastic fluid with bioprotective traits against and plant growth promoting properties. Among 15 bacterial endophytic isolates, two strains-namely, RAF5 and LAF5-were selected and identified as sp.

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Article Synopsis
  • The study explores how MAMP gene products from Bacillus velezensis and groundnut bud necrosis virus interact with the plant defense system in tomatoes, leading to the activation of key defense genes.
  • Secondary metabolites from Bacillus species significantly reduce GBNV symptoms in cowpea, showing a notable decrease in lesions compared to untreated controls.
  • Field experiments indicate that using a combination of Bacillus strains as soil and foliar treatments can lower disease incidence and enhance plant growth and yield.
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An endophytic fungal antagonist Trichoderma longibrachiatum EF5 exhibited biocontrol activity against a soil-borne fungal pathogen Macrophomina phaseolina. Under dual co-culture, T. longibrachiatum EF5 showed 58% inhibition against M.

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Three bacteria namely K2, K12 and BioCWB possessing plant growth promotion and biocontrol potential against phytopathogens and rice leaf folder were identified from organic soils of Sikkim, India. The results revealed significant higher production of phytohormones IAA (97.1 μg mL) and GA (10.

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