New abscisic acid-related metabolites from Phellinus vaninii.

Two new and three known abscisic acid-related metabolites were obtained from the potato dextrose agar culture of Phellinus vaninii YB2005. Their structures were established on the basis of detailed spectroscopic analyses, including 1D NMR, 2D NMR, and HR-Q-TOF-MS techniques. The putative biosynthesis pathway of these secondary metabolites would decipher the mechanism of the symbiosis between plant and fungi from the view of chemistry.