Phenolic Acids in Plant-Soil-Microbe System: A ReviewEnglish Full Text

LI SHOUTIAN, ZHOU JIANMIN, WANG HUOYAN and CHEN XIAOQIN Institute of Soil Science, the Chinese Academy of Sciences, P. O. Box 821, Nanjing S10008 (China)

Abstract: Phenolic acids are very common compounds in pedosphere. The objective of this review was to summarize the current knowledge of the behaviors of phenolic acids in plant-soil-microbe system. When phenolic acids originated from leaching, decomposition and exudation of living and dead plant tissues enter soils, they can react physicochemically with soil particle surfaces and/or incorporate into humic matter. Phenolic acids desorbed from soil particle surfaces and remained in solution phase can be utilized by microbe as carbon sources and absorbed by plants. The degradation products of phenolic acids by microbe include some organic and/or inorganic compounds such as new phenolic acids. In addition, phenolic acids in soils can stimulate population and activity of microbe. Phenolic acids can inhibit plants growth by affecting ion leakage, phytohormone activity, membrane permeability, hydraulic conductivity, net nutrient uptake, and enzyme activity. Behaviors of phenolic acids in soils are influenced by other organic compounds （phenolic acids, methionine, glucose, etc.） and/or inorganic ions. The role of phenolic acids as allelopathic agents should not be neglected only based on their low specific concentrations in natural soils, because numbers and interactions of phenolic acids will increase their allelopathic activities.

Keywords：

allelopathic activity; phenolic acids; plant-soil-microbe system;

Series：
(D) Agriculture
Subject：
Fundamental Science of Agriculture; Agronomy
Classification Code：
S153.61

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Phenolic Acids in Plant-Soil-Microbe System: A ReviewEnglish Full Text

LI SHOUTIAN, ZHOU JIANMIN, WANG HUOYAN and CHEN XIAOQIN Institute of Soil Science, the Chinese Academy of Sciences, P. O. Box 821, Nanjing S10008 (China)

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