Application of volatile substance produced by streptomyces fimicarius in control of plant diseases

The invention discloses an application of a volatile substance produced by streptomyces fimicarius in control of plant diseases. Particularly, the volatile substance produced by streptomyces fimicarius can inhibit growth of 15 phytopathogens, has the highest inhibition function on peronophythora litchii, pythium myriotylum, alternaria alternate, fusarium graminearum, colletotrichum musarum and pyricularia grisea and has the inhibition rate up to 100%. The invention further makes clear that the volatile substance produced by streptomyces fimicarius contains 7 compounds with remarkable bacteriostasis, and a direction is provided for future studies of control drugs for peronophythora litchii, pythium myriotylum, alternaria alternate, colletotrichum musarum, pyricularia grisea and other phytopathogens. 本发明公开了粪生链霉菌产生的挥发性物质在植物病害防治中的应用，具体公开粪生链霉菌产生的挥发性物质能够抑制15种植物病原菌的生长，其中对荔枝霜疫霉、群结腐霉、链格孢属、小麦赤霉病菌、香蕉炭疽病菌和水稻稻瘟病菌抑制作用最强,抑制率达100％。本发明还进步明确了粪生链霉菌产生的挥发性物质中7种具有明显抑菌作用的化合物，为今后研究荔枝霜疫霉、群结腐霉、链格孢属、香蕉炭疽病菌、水稻稻瘟病菌等植物病原菌的防治药物提供方向。