The Fermentation Broth of Streptomyces noursei Strain S86 as a Potential Biocontrol Product for Fusarium Crown Rot of Wheat
文献类型： 外文期刊
作者： Wang, Jing 1 ; Xu, Chunli 1 ; Xiao, Wenqing 1 ; Wang, Miaomiao 1 ; Han, Xue 1 ; Sun, Yang 2 ; Ge, Beibei 1 ;
作者机构： 1.Chinese Acad Agr Sci, State Key Lab Biol Plant Dis & Insect Pests, Inst Plant Protect, Beijing 100193, Peoples R China
2.Anhui Normal Univ, Coll Life Sci, Key Lab Conservat & Use Important Biol Resources, Anhui Prov Key Lab Mol Enzymol & Mech Major Dis, Wuhu 241000, Anhui, Peoples R China
关键词：
biological control; fermentation broth; Fusarium crown rot;
期刊名称：PLANT DISEASE （ 影响因子：4.4； 五年影响因子：4.8 ）
ISSN： 0191-2917
年卷期： 2025 年 109 卷 8 期
页码：
收录情况： SCI
摘要： Fusarium crown rot of wheat, caused by Fusarium pseudograminearum, significantly affects the yield and quality of wheat worldwide. Here, Streptomyces noursei strain S86 (herein referred to as S86) was evaluated for its biocontrol efficacy and biochemical characteristics. Strain S86 was found to secrete cellulase, amylase, and other enzymes. Whole-genome sequencing and LC-MS analyses confirmed that S86 could produce toyocamycin, nystatin, anisomycin, natamycin, and other antimicrobial metabolites. The fermentation broth of S86 inhibited the growth of F. pseudograminearum and had broad-spectrum inhibitory activity against Rhizoctonia cerealis, Cochliobolus sativus, Fusarium graminearum, and Gaeumannomyces graminis var. graminis. A greenhouse experiment demonstrated that wheat seeds coated with the S86 fermentation broth showed better control efficiency against Fusarium crown rot (68.33%), which was 22.63% higher than direct root irrigation with the S86 fermentation broth. These results indicate that S86 fermentation products have the potential to be developed as biological controls of Fusarium crown rot disease in the field.
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