Allelochemicals and allelopathy from microorganisms in wheat rhizosphers
Allelochemicals and allelopathy from microorganisms in wheat rhizosphers作者机构：Res. Ctr. for Eco-Environ. Sciences Chinese Academy of Sciences Beijing 100085 China
出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)
年 卷 期：1997年第9卷第1期
页 面：108-112页
核心收录：
学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 07[理学] 09[农学] 0903[农学-农业资源与环境] 0713[理学-生态学]
基 金：The project was supported by National Natural Sciences Foundation of China
主 题：allelochemicals allelopathy soil bacteria soil fungi.
摘 要：Allelochemicals from fungi and bacteria in wheat rhizosphere,as well as their allelo- pathic effects on wheat and maize have been *** and bacteria were incubated at tem- perature 28-30℃.The extracts were tested for *** samples identified to be responsi- ble for allelopathy have been determined by *** chemicals identified were selected to test again their *** results showed that acidic extracts were more toxic to germination of wheat and maize seeds(statistic significant difference P0.01 or P0.05)and basic extracts were less toxic and stimulated effects on germination in some cases.A good relationship has been observed between the data of chemical analysis and bioassay. A wide variety of chemicals such as phenolic acids,organic acids,aldehydes,alcohol,ke- tones,nitrogen-containing chemicals,were identified by *** phenols and organic acids were identified to be inhibit and nitrogens-containing compounds were to be stimulate to germina- tion of seeds and extension of root and shoot of wheat and maize.
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