Figure 4From: A rapid and robust method for simultaneously measuring changes in the phytohormones ABA, JA and SA in plants following biotic and abiotic stressPhytohormone response metrics. To determine whether 10 mg was sufficient sample to elicit a linear response in LC/MS signal, phytohormones were determined in 5, 10 and 15 mg amounts of freeze dried material. ABA, JA and SA and SA-glyc (a-d respectively) all show a linear response with increasing amounts of sample (R2 > 0.997).Back to article page