Protection on myocardial ischemia and reperfusion injury by Salvia miltiorrhizahairy root in isolated Langendorff rat hearts Effects of elicitors on accumulation of phenolic acids and tanshinones in Salvia miltiorrhiza hairy root Synergistic effects of biotic and abiotic elicitors on the production of tanshinones in Salvia miltiorrhiza hairy root culture In situ extraction effect of macroporous resins on tanshinones in Salvia miltiorrhiza hairy root culture Roles of reactive oxygen species in Streptomyces pactum Act12-induced tanshinone production in Salvia miltiorrhiza hairy roots