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Ying Yong Sheng Tai Xue Bao


Title:[Chemical components of root exudates from allelopathic rice accession PI312777 seedlings]
Author(s):He H; Chen X; Lin R; Lin W; He H; Jia X; Xiong J; Shen L; Liang Y;
Address:"Laboratory of Pesticide and Chemical Biology of Education Ministry, School of Life Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. alexhhb@163.com"
Journal Title:Ying Yong Sheng Tai Xue Bao
Year:2005
Volume:16
Issue:12
Page Number:2383 - 2388
DOI:
ISSN/ISBN:1001-9332 (Print) 1001-9332 (Linking)
Abstract:"In this study, allelopathic rice accession PI312777 seedlings were grown on a paddy soil under near natural condition, and their root exudates were collected by using circulation method, with the solution collected from no seedlings- planted soil as the control. The ether extracts of the root exudates and soil solution were detected by GC-MS, and identified with the mass spectral database of NIST and WILEY Library. The results showed that there were 36 compounds in the rice root exudates, including 9 terpenoids (peak area 10.97%), 8 phenols or quinones (5.87%), 6 esters (10.68%), 3 aldehydes or ketones (1.44%), 4 heterocycles (68.04%), 2 alcohols (1.23%), 2 ethers (0.57%), and 2 others (1.20%). A distinctly similar structure was observed among the terpenoids and among the phenols or quinones. In the soil solution, 39 compounds were detected, and 7 of them were the same of the root exudates. The difference of the compounds in rice root exudates and soil solution, and the possible allelopathic mechanisms of these compounds were discussed in this paper"
Keywords:Heterocyclic Compounds/isolation & purification Molecular Structure Oryza/*chemistry/classification/growth & development Phenols/isolation & purification Pheromones/*isolation & purification Plant Extracts/chemistry Plant Roots/*chemistry Seedlings/*chemi;
Notes:"MedlineHe, Haibin Chen, Xiangxu Lin, Ruiyu Lin, Wenxiong He, Huaqin Jia, Xiaoli Xiong, Jun Shen, Lihua Liang, Yiyuan chi Research Support, Non-U.S. Gov't China 2006/03/07 Ying Yong Sheng Tai Xue Bao. 2005 Dec; 16(12):2383-8"

 
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