304642-91-9 | Flagellin 22 (flg22)

Chemical type

• Peptide-based pathogen-associated molecular pattern (PAMP)
• Bacterial-derived signalling peptide

Key properties

• 22–amino-acid conserved fragment of bacterial flagellin
• Recognised by plant pattern-recognition receptors
• Triggers immune-related Ca²⁺ signalling without growth inhibition

• Induction of PAMP-triggered immunity (PTI)
• Activation of immune-specific signalling pathways
• Comparative biotic stressor against abiotic stress (PEG, NaCl)

Classification by use

• Chemicals used to trigger plant immune responses
• Chemicals used as biological signalling probes
• Chemicals used in plant–pathogen interaction studies

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Demei Chemical Technology Co., Ltd. is a modern high-tech enterprise integrating R&D, production, and sales. The company's founder, Dr. Arron, born in April 1975, graduated from the School of Mechanical Engineering at Yanshan University and has been engaged in research in the fields of mechanical engineering and chemical synthesis for many years. The company's products focus on the chemical industry, primarily dealing in chemical raw materials and chemical production machinery and equipment. With its strong technical capabilities, advanced production equipment, and strict quality management system, the company has earned the trust of customers worldwide.

1. Ca2+ and ROS signalling exhibit divergent root-specific dynamics in Arabidopsis responses to abiotic stress and PAMPs, Current Plant Biology, Volume 45, January 2026, 100571