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A Beginner's Guide to Osmoprotection by Biostimulants.

David Jiménez-Arias1, Francisco J García-Machado1,2, Sarai Morales-Sierra2

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Rising temperatures and drought threaten crop productivity and food security. Biostimulants offer a promising solution to enhance plant tolerance to osmotic stress, aiding cultivation under water deficit conditions.

Keywords:
biostimulantsdroughtosmoprotectantsosmotic stresssalinity

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Area of Science:

  • Agricultural Science
  • Plant Physiology
  • Environmental Science

Background:

  • Water is essential for all life, but osmotic stress from salinity and drought poses a significant threat to global crop productivity.
  • Climate change exacerbates these issues through rising temperatures and reduced precipitation, increasing vulnerability and threatening food security.
  • Developing strategies to conserve water and enable cultivation under water-scarce conditions is a critical scientific challenge.

Purpose of the Study:

  • To review the current state of research on biostimulants for improving crop tolerance to osmotic stress.
  • To explore innovative solutions for water conservation in agriculture.
  • To address the challenges posed by drought and salinity in the context of climate change.

Main Methods:

  • This review synthesizes recent scientific literature on plant responses to osmotic stress.
  • It focuses on the application and efficacy of biostimulants in mitigating the negative impacts of drought and salinity.
  • The review examines various biostimulant formulations and their mechanisms of action.

Main Results:

  • Biostimulants show significant potential in enhancing plant tolerance to drought and salinity stress.
  • These formulations can improve physiological and biochemical plant responses, leading to better crop performance under adverse conditions.
  • The use of biostimulants represents a viable strategy for sustainable agriculture in water-limited environments.

Conclusions:

  • Biostimulants are a promising approach to improve crop resilience against osmotic stress, contributing to food security.
  • Further research into novel biostimulant formulations and application methods is warranted.
  • Integrating biostimulants into agricultural practices can support sustainable cultivation under challenging environmental conditions.