In Situ Study of Metabolic Response of Leaves to Salt Stress by Neutral Desorption-Extractive Electrospray Ionization Mass Spectrometry.

Salt stress is one of the most common factors limiting plant cultivation. In this study, metabolic responses to salt stress in () leaves were analyzed in situ by neutral desorption-extractive electrospray ionization mass spectrometry (ND-EESI-MS) without any sample pretreatment. Metabolic changes of leaves were observed in response to salt stress conditions, including the levels of serine, glutamic acid, arginine, cinnamic acid, ferulic acid, caffeic acid, protocatechuic acid, epicatechin, morin, myricetin, apigravin, and β-cotonefuran.