首页|期刊导航|中国农业科学（英文版）|An ABAGS-Like Metabolite of Botrytis cinerea Isolate BC4 and Its Inhibitory Activity to Seed Germination of Weeds
中国农业科学（英文版）2005，Vol.4Issue(11)：845-850,6.
An ABAGS-Like Metabolite of Botrytis cinerea Isolate BC4 and Its Inhibitory Activity to Seed Germination of Weeds
An ABAGS-Like Metabolite of Botrytis cinerea Isolate BC4 and Its Inhibitory Activity to Seed Germination of Weeds
摘要
Abstract
Aimed at finding out natural compounds to kill weeds, a plant pathogenic fungus, Botrytis cinerea isolate BC4, was chosen as a source. A significantly polar metabolite, which was different in chromatographic behavior from ABAGE-like metabolite, was isolated from cultural filtrate of the fungus by column chromatography on silica gel, preparative LC, TLC and HPLC. The structure of the metabolite was determined by HPLC-ESI MS, g.l.c, IR, 1H NMR and hydrolysis. The results showed that this metabolite was quite similar with ABAGS. The bioassay showed the metabolite had inhibition to seed germination of both broadleaf weeds [Amaranthus retroflerus L. and Chenopodium album L.] and gramineae weeds [Digitaria sanguinalis L. Scop and Echinochloa crusgalii L. Beauv]. It also had inhibitory activity to the seedling growth of broadleaf weeds. The bioassay, using Amaranthus retroflexus L. as an indicator, showed that the lowest concentration of the metabolite to inhibit root+sprout growth of A. retroflexus was 0.6 μM, and the concentration for 50%inhibition was 1.3 μM.关键词
Botrytis cinerea/ABAGS/Amaranthus retroflexus L./Inhibitory effectKey words
Botrytis cinerea/ABAGS/Amaranthus retroflexus L./Inhibitory effect分类
农业科技引用本文复制引用
..An ABAGS-Like Metabolite of Botrytis cinerea Isolate BC4 and Its Inhibitory Activity to Seed Germination of Weeds[J].中国农业科学（英文版）,2005,4(11):845-850,6.基金项目
This research was supported by the Natural Science Foundation of Shaanxi Province, P.R.China (142101),the Key Project of Science and Technology of Hebei Province, P.R.China, the Project of Agriculture Key Problem of Shaanxi Province, P.R.China (2003K03-G2-03) and 9816 Key Project of Hebei Agricultural University. （142101）
