Isolation and identification of the endophytic fungus producing polydatin in Polygonum cuspidatum

Abstract:

Endophytic fungi isolated from Polygonum cuspidatum in Qinba Mountains, China, were studied in this paper. Screening of metabolites in submerged cultures for these isolates by HPLC showed strain M-56 could produce polydatin with the yield of 1.029 mg/L. According to the morphological characteristics and ITS sequence, we identified the strain as Alternaria alternaria.