| An ABAGS-Like Metabolite of Botrytis cinerea Isolate BC4 and Its Inhibitory Activity to Seed Germination of Weeds |
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| 作者姓名： | WANG hui DONG Jin-gao SHANGHong-sheng |
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| 作者单位： | [1]College of Plant Protection, Northwest A＆F University, Yangling 712100, P.R. China [2]Mycotoxin Laboratory, Hebei Agricultural University, Baoding 071001, P.R. China |
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| 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. |
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| 摘 要： | 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 1.3μM.
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| 关 键 词： | 蘑菇 灰质菇 ABAGS 代谢物 抑制作用 |
An ABAGS-Like Metabolite of Botrytis cinerea Isolate BC4 and Its Inhibitory Activity to Seed Germination of Weeds |
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| WANG hui DONG Jin-gao SHANGHong-sheng.An ABAGS-Like Metabolite of Botrytis cinerea Isolate BC4 and Its Inhibitory Activity to Seed Germination of Weeds[J].Agricultural Sciences in China,2005,4(11):845-850. |
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| Authors: | WANG hui DONG Jin-gao SHANG Hong-sheng |
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| 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. |
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| Keywords: | Botrytis cinerea ABAGS Amaranthus retroflexus L Inhibitory effect |
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