We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
From Abiotic Stress to Emerging Environmental Pollutants: Expanding Roles of Melatonin and NO in Plant Defense
Summary
This review paper looks at how plants use two natural compounds—melatonin and nitric oxide—to protect themselves from stress, including newer pollutants like microplastics and nanoparticles that are increasingly showing up in soil and water. Understanding how plants defend themselves against these contaminants matters for us too, since it could help scientists breed hardier crops that stay healthier (and safer to eat) even when grown in polluted environments. This is a summary of existing research rather than new experiments, so it points to promising directions rather than proven solutions.
In the current era of industrial expansion, the environmental landscape is characterized by an evolving spectrum of contaminants, exposing plants to new types of stress. Plants are forced to employ defensive strategies to survive these conditions. Melatonin (MT) is an amine signaling molecule involved in plant defense processes. Its protective properties in response to various environmental stressors have recently been intensively studied. Melatonin-mediated growth and defense responses result from a multifaceted signaling architecture that involves a wide range of molecules. Among them, nitric oxide (NO) is a key contributor. This review synthesizes existing knowledge of the MT contributions in mitigating well-established abiotic stresses, particularly in connection with NO signaling, and explores the potential to apply these findings to emerging environmental pollutants, such as microplastics, nanoparticles, and surfactants.