In this study, the e n d o phyt i c fungi were i so la ted f rom the
root, ste m and leaf of P. ostii . The objective of the present study
wa s to explore an endophytic fungus with the capability to
produce the same biologically-active constituent paeonol as the
host plant P. ostii ; prove the relationship between the
endophytic fungi and active constituents in P. ostii ; prove the
relationship between the endophytic fungi and geoherbalism of
Cortex Moutan preliminary