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Microbial metabolites in plant disease management

Dixit, R and Kumari, M (2022) Microbial metabolites in plant disease management. [Book Chapter]

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Official URL: https://doi.org/10.1016/B978-0-323-99476-7.00005-3


Controlling plant diseases has always been a mammoth task for increasing plant productivity and yield. The microbe-derived products can be a sustainable and economical approach to substitute the harmful chemical pesticides. The microbes are known to produce diverse compounds, including alkaloids, phenolics, flavonoids, terpenes, quinolones, steroids, non-ribosomal peptides, and polyketides which can act as potent antimicrobials against plant pathogens. Various fungi such as Trichoderma, Trichothecium, Talaromyces, Aspergillus, bacteria such as Bacillis, Agrobacterium, Pseudomonas, and actinomycetes such as Streptomyces, Actinoplanes, Streptoverticillium, and Spirillospora are prolific producers of antimicrobial compounds which can be used in plant disease management. Pyocyanin, viridian, hydrogen cyanide, glyovirin, iturin, siderophores, trichodermins, and koningins are some of the isolated metabolites from microbes that have been used to ameliorate plant biotic stress in greenhouse conditions either by direct killing, induction of oxidative stress, depriving the pathogen of iron source or any other mechanism. Endophytes, lichens, extremophiles are some of the newly emerged microbes, while genome mining and metagenomics are some of the approaches for rapid screening of microbes for synthesis of antimicrobial secondary metabolites, which can be novel. Many prospective metabolite characteristics, such as low yield and solubility of the metabolites, have an effect on humans and the environment, and the costing policies have to be analyzed carefully for the smooth journey of these biopesticides from lab to land. © 2023 Elsevier Inc. All rights reserved.

Item Type: Book Chapter
Publication: Microbial Biomolecules: Emerging Approach in Agriculture, Pharmaceuticals and Environment Management
Publisher: Elsevier
Additional Information: The copyright for this article belongs to Elsevier.
Keywords: Bacillus; mechanism; Microbes; secondary metabolites; Trichoderma
Department/Centre: Division of Biological Sciences > Biochemistry
Date Deposited: 25 Apr 2023 05:49
Last Modified: 25 Apr 2023 05:49
URI: https://eprints.iisc.ac.in/id/eprint/81276

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