The research of bacteriostasis of volatile organic compounds from eight landscape herbaceous plants

Authors LIU Yang; WANG Fei; TIAN Zhi-guo; WANG Jian; GONG Yi

Journal Journal of Northwest A & F University. Natural Science Edition , 2009,3:37

Abstract [Objective] The comparison of the inhibition effect on the biogenic volatile organic compounds of 8 kinds of common landscape herbaceous plants in north of China could provide a basis for the rational distribution of plants in landscape. [Method] The antibacterial rate of 1 g and 2 g whole leaves and broken leaves of 8 kinds of tested plants (Salvia splendens Ker-Gawl, Petunia hybrida Vilm. ,Celosia cris-tata Ⅰ ,Celosia cristata Ⅱ ,Tagetes erecta L. ,Coleus blumei ,Brassica oleracea var. acephala,Oxalis trian-gularis) to Escherichia coli, Staphylococcus aureus , Bacillus subtilis and Saccharomyces cerevisiae were determined with the method of testing in dish, and then the difference of their antibacterial activity was compared. [Result] All of the bacteriostasis from the tested plants had antibacterial activities to a certain extent. Regularly,the antibacterial rate of broken leaves was greater than that of whole leaves of the same quality,and the antibacterial rate of 2 g leaves was greater than that of 1 g leaves. The antibacterial rate of 2 g broken leaves of the 8 kinds of plants against E. coli was 14. 84%66. 41%,among which the antibacterial rates of C. blumei,B. acephala,P. hybrida Vilm. were more than 50%. The antibacterial rate against S. aureus was 23. 93% 54. 70% , among which the antibacterial rate of C. blumei was more than 50% only. The antibacterial rate against B. subtilis was 11. 82% 65. 59%,among which the antibacterial rates of C.blumei,S. splendens,T. erecta L were more than 50%. The antibacterial rate against S. cerevisiae was 34. 91%74. 52% ,among which the antibacterial rates of S. splendens,P. hybrida Vilm. ,B. acephala,C. blumei were more than 50% ,but C. cristata Ⅱ didn''t have the ability to inhibit S. cerevisiae. [Conclusion] C.blumei,B.acephala,P. hybrida Vilm. and S. splendens had stronger antibacterial activities,therefore, they could be viewed as ideal choice for ecological healthy virescence mode in cities.

Species covered 万寿菊 Tagetes erecta 块根芍药（变种） Paeonia anomala var. intermedia 鸡冠花 Celosia cristata