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以人参6种病原真菌及其6种拮抗细菌和4种拮抗放线菌为受体,研究了新林土、三年生人参根际土壤、撂荒10年老参地土甲醇提取物对其生长的影响。结果表明:人参根际土壤提取物对病原真菌生长的影响存在抑制和促进2种类型,对拮抗细菌、拮抗放线菌的影响表现为抑制;对受体真菌、细菌、放线菌的影响存在明显的种间差异;综合比较抑制作用强弱顺序为拮抗细菌>拮抗放线菌>病原真菌。新林土中本身存在着影响受体微生物生长的物质组分,栽培人参后,该组分活性增强,表明人参根际土壤中物质和组成的变化与人参病原真菌、拮抗细菌、拮抗放线菌的生长具有一定的相关性。
With 6 kinds of pathogenic fungi of ginseng, 6 kinds of antagonistic bacteria and 4 kinds of antagonistic actinomycetes as the receptor, the effects of methanol extract of new forest soil, perennial rhizosphere soil of three years old, influences. The results showed that there were two kinds of inhibitory and promotion effects on the growth of pathogenic fungi in rhizosphere soil of ginseng, which inhibited the antagonistic and antagonistic actinomycetes; the effects on the fungi, bacteria and actinomycetes Significant interspecific differences; comprehensive comparison of the inhibitory effect of the order of antagonistic bacteria> antagonistic actinomycetes> pathogenic fungi. The new forest soil itself has a substance that affects the growth of recipient microorganisms. After the cultivation of ginseng, the activity of this component is enhanced, indicating that the changes of the substance and composition in rhizosphere soil of ginseng are similar to the pathogenic fungi, antagonistic bacteria and actinomycetes The growth of a certain correlation.