Phenolic acids as plant growth inhibitors from Tridax procumbens L.

International Conference on Sustainable Agriculture for Rural Development 2018

Andriana, Y.^1^2 ; Quy, T.N.^1 ; Xuan, T.D.^1

Graduate School for International Development and Cooperation, Hiroshima University Kagamiyama, Higashi-Hiroshima, Hiroshima

739-8529, Japan^1

Development Center for Appropriate Technology, Indonesian Institute of Sciences, Jl. KS. Tubun No. 5, Subang, Jawa Barat

41213, Indonesia^2

关键词: Agricultural practices;    Ethyl acetates;    Ferulic acids;    Inhibitory effect;    Phenolic acids;    Raphanus sativus;    Root elongation;    Shoot growth;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/250/1/012024/pdf
DOI  :  10.1088/1755-1315/250/1/012024

来源: IOP

【 摘 要 】

This study examined inhibitory effects of phenolic acids from Tridax procumbens L. on germination and growth of Raphanus sativus (radish). Four phenolic acids from this plant, namely benzoic acid, ellagic acid, vanillin, and ferulic acid were identified and quantified from a fraction of ethyl acetate extract by high performance liquid chromatography. These phenolic acids were subjected to germination and growth assays. Vanillin was the major constituents (364.689 μg/mg fraction) of ethyl acetate extract of this plant followed by benzoic, ellagic, and ferulic acids (69.888, 17.589, and 3.590 μg/mg fraction, respectively). In germination and growth assays, benzoic acid presented the most inhibitory effects (IC50 of germination = 5.148 mM) on radish germination and growth. This compound decreased root elongation and shoot growth with IC50 values of 0.947 mM and 3.452 mM respectively. This study revealed that T. procumbens possessed phenolic acids that can be utilized as plant growth inhibitors. Benzoic acid might play a role in the phytotoxicity of this plant. However, further trials on evaluating how this plant releases benzoic acid in soil, and examining the influence on more plants in its vicinity are needed to clarify potential use of this plant in weed control of agricultural practice.