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Climate change is radically remodeling plant-pathogen relationships, particularly in the context of virus-plant interactions. Long viewed as devastating, new evidence has revealed a complex role for plant viruses, from pathogenic villains to possible mutualists that provide stress tolerance. This chapter discusses the dynamic interaction between viruses and plants under abiotic stresses, such as heat, drought, and salinity. It presents the burgeoning positive impacts of some viruses on plant productivity and health. Through the discussion of some illustrative case studies, mechanisms such as hormone regulation, osmolyte accumulation, and genome editing technologies are presented. The chapter also elaborates on cross-protection, CRISPR-based viral genome editing, and the eco-evolutionary dynamics that foster plant adaptation to the changing climate. Comprehension of these interactions provides the gateway for sustainable agriculture and the formation of crops that can sustain a harsh climate. The identification of viruses as mutualism, biocontrol, and biotechnology agents represents a paradigm shift in how we perceive plant virology in the context of global food security.

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Plant Viruses in a Changing Climate: Tomato Leaf Curl New Delhi Virus Dynamics, Evolution, and the Myth and Reality of Beneficial Interaction

  • 章节

  • 发表日期：

    2026年

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  • Bibhu Prasad Behera,
  • Krishnamayee Mallick,
  • Akanksha Behera,
  • Ankita Das,
  • Rajit Kumar Pal,
  • Gulab Chand Arya,
  • Aditya Mallick,
  • Namisha Sharma

摘要

Climate change is radically remodeling plant-pathogen relationships, particularly in the context of virus-plant interactions. Long viewed as devastating, new evidence has revealed a complex role for plant viruses, from pathogenic villains to possible mutualists that provide stress tolerance. This chapter discusses the dynamic interaction between viruses and plants under abiotic stresses, such as heat, drought, and salinity. It presents the burgeoning positive impacts of some viruses on plant productivity and health. Through the discussion of some illustrative case studies, mechanisms such as hormone regulation, osmolyte accumulation, and genome editing technologies are presented. The chapter also elaborates on cross-protection, CRISPR-based viral genome editing, and the eco-evolutionary dynamics that foster plant adaptation to the changing climate. Comprehension of these interactions provides the gateway for sustainable agriculture and the formation of crops that can sustain a harsh climate. The identification of viruses as mutualism, biocontrol, and biotechnology agents represents a paradigm shift in how we perceive plant virology in the context of global food security.