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The huge economic losses caused by bacterial phytopathogens and an increase in bactericide resistance underscore the need for novel and sustainable strategies to manage bacterial plant diseases. Melatonin is a phytochemical that plays a significant role in enhancing plant defense against bacterial pathogens. In this chapter, the impact of melatonin on protease activity, biofilm formation, and mRNA expression, and the practical application of melatonin to manage bacterial plant diseases are discussed. Melatonin enhances plant immunity by regulating protease activity and stress responses to bacterial pathogen infections. It also directly suppresses bacterial pathogens by disrupting biofilm formation and reducing bacterial virulence through the inhibition of quorum sensing. Though melatonin is a high-potential ecofriendly alternative to chemical pesticides, practical application challenges still persist. Future research should optimize procedures to standardize and enhance melatonin production for practical application.

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Melatonin’s Role in Protease Activity, Biofilm Formation, and mRNA Expression to Combat Bacterial Diseases in Plants

  • 章节

  • 发表日期：

    2025年

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  • Jagmohan Singh,
  • Shiv Singla,
  • M. S. Gambo,
  • Asharani Patel,
  • Kuleshwar Parsad Sahu,
  • Nikita Gambhir

摘要

The huge economic losses caused by bacterial phytopathogens and an increase in bactericide resistance underscore the need for novel and sustainable strategies to manage bacterial plant diseases. Melatonin is a phytochemical that plays a significant role in enhancing plant defense against bacterial pathogens. In this chapter, the impact of melatonin on protease activity, biofilm formation, and mRNA expression, and the practical application of melatonin to manage bacterial plant diseases are discussed. Melatonin enhances plant immunity by regulating protease activity and stress responses to bacterial pathogen infections. It also directly suppresses bacterial pathogens by disrupting biofilm formation and reducing bacterial virulence through the inhibition of quorum sensing. Though melatonin is a high-potential ecofriendly alternative to chemical pesticides, practical application challenges still persist. Future research should optimize procedures to standardize and enhance melatonin production for practical application.