Effect of Exogenous or Endogenous Regulatory Factors on Metabolic Responses of Plants to Biotic/Abiotic Stress

Dear Colleagues,

Metabolic responses of plants to biotic/abiotic stress are crucial for their survival and adaptation in various environmental conditions. Environmental conditions include drought, salinity, heat stress, heavy metal pollution, nutrient deficiency, and multiple organisms like microorganisms and animals. When faced with such pressures, the plants mobilize their defense mechanisms, such as metabolism, to safeguard their well-being. Special regulatory factors, including exogenous or endogenous factors, play a key role in initiating these defense responses. For example, regulatory factors modulate metabolic biosynthesis or gene expression related to osmoprotectants accumulation (e.g., proline), antioxidant enzymes production (e.g., superoxide dismutase), and stomatal closure regulation (e.g., ABA-responsive genes). These adaptations help plants maintain cellular homeostasis and minimize damage caused by abiotic/biotic stresses. The exogenous or endogenous factors include chemical substances, including inorganic or organic, rhizospheric/endophyte microorganisms and others.

Understanding the intricate interplay between metabolic responses and regulatory factors is essential for developing strategies to enhance plant resilience against various stresses. This Special Issue of Metabolites is devoted to original research and review articles on the effect of exogenous or endogenous regulatory factors on the metabolic responses of plants to biotic/abiotic stress. Topics of interest to this Special Issue include, but are not limited to, the following:

• Induction of metabolite biosynthesis in plants subjected to biotic/abiotic stresses that are regulated by exogenous or endogenous regulatory factors;
• Root exudates under biotic and abiotic;
• Plant metabolite biosynthesis under biotic/abiotic;
• Lipid metabolism of plants under biotic/abiotic and the mechanism characterization;
• Exogenous chemical substances that enhance plant stress tolerance and their mechanism characterization;
• Environmental microorganisms, including endophytes, enhance plant stress tolerance and facilitate mechanism characterization;
• Induction of metabolite biosynthesis in plants via regulated factors in response to biotic and abiotic stresses.

Dr. Bo Yuan
Guest Editor

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