69-72-7 | Salicylic Acid (SA)

Chemical type

• Plant hormone (phytohormone)

^[1]

• Plant hormone
• Defense signal

^[2,3]

Key properties

• Endogenous signaling molecule
• Regulates immune responses and systemic resistance
• Downregulated by certain mVOCs in favor of JA pathways

^[1]

• Induces ROS accumulation and AQP internalization
• Reduces membrane water permeability
• Interacts with ABA and JA pathways

^[2]

• Key signaling molecule mediating Systemic Acquired Resistance (SAR)
• Its pathway is modulated by T. harzianum
• Levels increase in plants inoculated with T. harzianum

^[3]

• Activates defense genes and pathogen resistance
• Influences root architecture and herbivore interactions
• Coordinates with other hormones for stress adaptation

^[1]

• Modulates root hydraulic conductivity under stress
• Links redox signaling to water transport
• Enhances tolerance in mycorrhizal symbiosis

^[2]

• Indirect pest control by activating plant defense responses against pests and pathogens.

^[3]

Classification by use

• Regulators of plant development and defense
• Components of hormonal crosstalk networks

^[1]

• Hormonal regulators of AQP trafficking
• Chemicals in defense and abiotic stress responses

^[2]

• Plant defense elicitor

^[3]

A trustworthy factory and manufacturer

1. [1] Microbial volatile organic compounds reshape plant hormonal networks and root herbivore defense, Current Plant Biology, Volume 45, January 2026, 100584
2. [2] Systematic Review of Plant AQPs: Molecular mechanisms, intracellular trafficking, and emerging roles in stress adaptation, Current Plant Biology, Volume 45, January 2026, 100586
3. [Cite:3] Trichoderma harzianum for the control of agricultural pests: Potential, progress, applications and future prospectsControl de plagas agrícolas con Trichoderma harzianum: potencial, avances, aplicaciones y perspectivas futuras, Revista Argentina de Microbiología, 11 October 2025