Flagelin 22 (flg22) is a 22-amino-acid peptide, which corresponds to the highly conserved N-terminal region of flagellin, can induce immunity reaction in various plants such as tomato (Solanum lycopersicum), potato (Solanum tuberosum), tobacco (Nicotiana tabacum), and Arabidopsis thaliana. Flagelin 22 can induce oxidative bursts and hypersensitive responses (HR) in both female gametophytes and sporophytes of Saccharina japonica, indicating that algae and plants may share similar mechanisms for recognizing pathogens. After culturing the female gametophytes of S. japonica in the presence of Flagelin 22, flg15, flg14, and flg22D43A for 40 days, both Flagelin 22 and flg15 significantly induce growth inhibition of the algae at a concentration of 1 μM. The fresh weights of Flagelin 22- and flg15-challenged female gametophytes are less than one half of the control^[1] .

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

2386.50

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Room temperature in continental US; may vary elsewhere.

Powder-80°C2 years-20°C1 yearIn solvent-80°C6 months-20°C1 month

In Vitro: 

H₂O : ≥ 50 mg/mL (20.95 mM)

* "≥" means soluble, but saturation unknown.

Preparing 
Stock Solutions

ConcentrationSolventMass1 mg5 mg10 mg1 mM0.4190 mL2.0951 mL4.1902 mL5 mM0.0838 mL0.4190 mL0.8380 mL10 mM0.0419 mL0.2095 mL0.4190 mL

*

请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。
储备液的保存方式和期限：-80°C, 6 months; -20°C, 1 month。-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。

• [1]. Bojun Lu, et al. Defense responses in female gametophytes of Saccharina japonica (Phaeophyta) induced by flg22-derived peptides. Journal of Applied Phycology (2016), 28(3), 1793-1801.