白蚁菌属放线菌Isoptericola sp. G72及应用

By screening Isoptericola sp. G72, a termite fungus, from marine sediments, and developing its metabolites into microbial pesticides, the problem of screening marine actinomycetes has been solved, enabling effective control of various plant diseases.

CN116355790BActive Publication Date: 2026-07-17RUSHAN HANWEI BIO TECHN & SCI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
RUSHAN HANWEI BIO TECHN & SCI
Filing Date
2022-12-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, the screening and repeated discovery of marine actinomycetes leads to a low probability of discovering novel bioactive compounds, making it difficult to effectively control agricultural diseases.

Method used

Isoptericola sp. G72, an actinomycete of the genus Isoptericola, was isolated and screened from marine sediments. Its metabolites exhibit antibacterial activity against a variety of plant pathogens, and microbial pesticides were developed for the control of gray mold, cucumber wilt, cucumber anthracnose, rice sheath blight, and asparagus stem blight.

Benefits of technology

The termite fungus Isoptericola sp. G72 can grow under a wide range of conditions, and its metabolites have significant antibacterial activity against a variety of plant pathogens, providing broad-spectrum control effects.

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Abstract

本发明提供了一种海洋放线菌Isoptericola sp. G72,所述的海洋放线菌Isoptericola sp. G72,保藏于中国微生物菌种保藏管理委员会普通微生物中心,保藏编号为CGMCC No.25782。本发明分离筛选出的海洋放线菌Isoptericola sp. G72在温度4‑45℃、pH6.0‑11.0的环境下都可以生长,生长条件宽松,便于成活,适合广泛培养。本发明分离筛选出的海洋放线菌Isoptericola sp. G72代谢产物对以灰葡萄孢菌为病原体的灰霉病、以尖镰孢菌黄瓜专化型为病原体的黄瓜枯萎病、以葫芦科刺盘孢菌为病原体的黄瓜炭疽病、以立枯丝核菌为病原体的水稻纹枯病以及以天门冬拟茎点菌为病原体的芦笋茎枯病都具有良好的抑菌活性,具有广谱抑菌的效果。
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