2Sun L Z, Currier N L, Miller S C. The American coneflower: a propHylactic role involving nonspecific immunity [ J ].J Altern Complement Med, 1999, 5 (5): 437 -446.
3Rehman J, Dillow J M, Carter S M, et al. Increased production of antigen- specific immunoglobulins Gand M following in vivo treatment with the medical plants Echinacea angustifolia and Hydrastis canadensis [ J ] . Immunol Lett,1999, 68(2): 391 -395.
4Burger R A, Torres A R, Warren R P, et al. Echinaceainduced cytokine production by macropHages [ J ]. Int J Immumopharmacol, 1997, 19 (7) :371 - 379.
5Jia Y, Wang BC, Wang XJ, et al. Effect of sound stimulation on roots growth and plasmalemma H + - ATPase activity of chrysanthemum ( Gerbera jamesonii ) [ J ]. Colloids and Surfaces B:Biointerfaces, 2003, 27( 1 ) :65 -69.
6Duan CR, Wang BC, Liu Wanqian, et al. Effect of chemical and physical factors to improve the germination rate of Echinacea angustifolia seeds [ J ]. Colloids and Surfaces B:Biointerfaces, 2004,37:101 - 105.
