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Ying Yong Sheng Tai Xue Bao

Title:		[Interactive effects between allelochemical substitutes]
Author(s):		He H; Shen L; Song B; Guo Y; Liang Y; Liang K; Lin W;
Address:		"Key Laboratory of Pesticide and Chemical Biology of Education Ministry, College of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. hehuaqin@pub2.fz.fj.cn"
Journal Title:		Ying Yong Sheng Tai Xue Bao
Year:		2005
Volume:		16
Issue:		5
Page Number:		890 - 894
DOI:
ISSN/ISBN:		1001-9332 (Print) 1001-9332 (Linking)
Abstract:		"In order to understand the allelopathic mechanisms of rice on weed, the allelochemical substitutes salicylic acid, p-hydroxybenzonic acid, cinnamic acid, vanillic acid and ferulic acid were used in an orthogonally gyrating regression experiment to study their interactive effects on the growth of barnyardgrass. The results indicated that whether the interactive effects between two substitutes, e.g., between salicylic and cinnamic acid or between salicylic and p-hydrobanzonic acid, were synergistic or antagonistic depended on the concentrations of each substitutes in the mixture. In the mixture of salicylic acid and p-hydrobanzonic acid, the effect of salicylic acid was synergistic at < 0.14 mmol.L(-1) but antagonistic at > 0.14 mmol.L(-1), while p-hydrobanzonic acid showed an antagonistic effect at > 0.425 mmol.L(-1). Salicylic acid at all test concentrations exhibited antagonism to cinnamic acid, while cinnamic acid had a synergistic at < 0.14 mmol.L(-1), but an antagonistic effect at >0.14 mmol.L(-1) on alicylic acid. The interactive effects between cinnamic and ferulic acid were all synergistic at test concentrations"
Keywords:		Cinnamates/*chemistry Drug Interactions Hydroxybenzoates/*chemistry Oryza/chemistry/growth & development Pheromones/*chemistry Poaceae/growth & development Salicylic Acid/*chemistry Vanillic Acid/chemistry;
Notes:		"MedlineHe, Huaqin Shen, Lihua Song, Biqing Guo, Yuchun Liang, Yiyuan Liang, Kangjing Lin, Wenxiong chi Research Support, Non-U.S. Gov't China 2005/08/23 Ying Yong Sheng Tai Xue Bao. 2005 May; 16(5):890-4"