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在实验室模拟条件下研究了土著放线菌Streptomyces hygroscopicus A-4对植物病原微生物Fusarium avenaceum 7/2根中定殖及对冬黑麦(Secale cеreale L.)和红三叶草(Trifolium pratense L.)幼苗污染的影响。检测了冬黑麦和红三叶草根际的世代间关系。结果表明:播种前用S.hygroscopicus孢子处理种子,幼苗根中植物病原微生物菌丝大量减少,感染率下降60%~70%,根的生长加快。从生态安全的角度讨论了增强土壤抑制自然病害特性及利用原核细胞提高植物抵抗病原体稳定性的可能性。
The effects of indigenous actinomycetes Streptomyces hygroscopicus A-4 on colonization of plant root-pathogenic microorganism Fusarium avenaceum 7/2 and on the growth of winter rye (Secale calereale L.) and red clover (Trifolium pratense L.) were studied under laboratory simulation conditions. Effect of seedling pollution. The inter-generational relationships between winter rye and red clover rhizosphere were examined. The results showed that the seeds of S.hygroscopicus were treated with S.hygroscopicus before sowing, the number of mycorrhizal fungi in the root of seedlings decreased significantly, the infection rate decreased by 60% -70% and the root growth accelerated. From the point of view of ecological security, we discussed the possibility of enhancing the characteristics of soil inhibition of natural diseases and using prokaryotic cells to enhance the stability of plants against pathogens.