Publication:
Belowground fungal volatiles perception in okra (Abelmoschus esculentus) facilitates plant growth under biotic stress

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dc.contributor.authorSingh, Jyoti
dc.contributor.authorSingh, Prachi
dc.contributor.authorVaishnav, Anukool
dc.contributor.authorRay, Shatrupa
dc.contributor.authorRajput, Rahul Singh
dc.contributor.authorSingh, Shiv Mohan
dc.contributor.authorSingh, Harikesh Bahadur
dc.date.accessioned2025-01-30T06:03:48Z
dc.date.available2025-01-30T06:03:48Z
dc.date.issued2021
dc.description.abstractMicrobial volatile organic compounds (mVOCs) have great potential in plant ecophysiology, yet the role of belowground VOCs in plant stress management remains largely obscure. Analysis of biocontrol producing VOCs into the soil allow detailed insight into their interaction with soil borne pathogens for plant disease management. A root interaction trial was set up to evaluate the effects of VOCs released from Trichoderma viride BHU-V2 on soil-inhabiting fungal pathogen and okra plant growth. VOCs released into soil by T. viride BHU-V2 inhibited the growth of collar rot pathogen, Sclerotium rolfsii. Okra plants responded to VOCs by increasing the root growth (lateral roots) and total biomass content. VOCs exposure increased defense mechanism in okra plants by inducing different enzyme activities i.e. chitinase (0.89 fold), ?-1,3-glucanase (0.42 fold), peroxidase (0.29 fold), polyphenol oxidase (0.33 fold) and phenylalanine lyase (0.7 fold) when inoculated with S. rolfsii. In addition, T. viride BHU-V2 secreted VOCs reduced lipid peroxidation and cell death in okra plants under pathogen inoculated condition. GC/MS analysis of VOCs blend revealed that T. viride BHU-V2 produced more number of antifungal compounds in soil medium as compared to standard medium. Based on the above observations it is concluded that okra plant roots perceive VOCs secreted by T. viride BHU-V2 into soil that involved in induction of plant defense system against S. rolfsii. In an ecological context, the findings reveal that belowground microbial VOCs may play an important role in stress signaling mechanism to interact with plants. � 2021
dc.identifier.doihttps://doi.org/10.1016/j.micres.2021.126721
dc.identifier.issn9445013
dc.identifier.urihttps://dl.bhu.ac.in/ir/handle/123456789/25143
dc.publisherElsevier GmbH
dc.subjectBiocontrol
dc.subjectInduced systemic resistance
dc.subjectSclerotium rolfsii
dc.subjectTrichoderma
dc.subjectVolatiles
dc.titleBelowground fungal volatiles perception in okra (Abelmoschus esculentus) facilitates plant growth under biotic stress
dc.typeArticle
dspace.entity.typePublication
journal.titleMicrobiological Research
journalvolume.identifier.volume246

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2021