| Title: | Volatile organic compounds of Bacillus pumilus strain S1-10 exhibit fumigant activity against Meloidogyne incognita |
| Author(s): | Dai M; Liu R; Jiang H; Zhang X; Song W; Zhang J; Liang C; Zhao HH; Shi Q; |
| Address: | "Qingdao Agricultural University, College of Plant Health and Medicine, Qingdao Agricultural University, Qingdao, Shandong, China, 266109; 1061743919@qq.com. Gansu Agricultural University College of Plant Protection, 578534, Lanzhou, Gansu, China. Chinese Academy of Agricultural Sciences Institute of Vegetables and Flowers, 471462, Beijing, Beijing, China; 18404983798@163.com. Qingdao, China; 1127406298@qq.com. Beijing, China; zxping8281@163.com. Qingdao Agricultural University, 98431, College of Plant Health and Medicine, 700# Changcheng Road, Chengyang Disrict, Qingdao, China, 266109; songwenwen2002@163.com. Qingdao, China; 20170204939@stu.qau.edu.cn. Qingdao Agricultural University, College of Plant Health and Medicine, 700#,Changcheng Rd. Chengyang Distri., Qingdao, Shandong, China, 266109. Qingdao Agricultural University, 98431; syliangchen@163.com. Qingdao Agricultural University, College of Agronomy and Plant Protection, No.700, Changcheng Rd., Chengyang Distr. Qingdao City, Qingdao, Shandong, China, 266109; hhzhao@qau.edu.cn. Changcheng Road 700, Chengyang DestrictQingdao, Shandong, China, 266109; quanyueshi@foxmail.com" |
| DOI: | 10.1094/PDIS-10-22-2391-RE |
| ISSN/ISBN: | 0191-2917 (Print) 0191-2917 (Linking) |
| Abstract: | "Root-knot nematodes (RKNs) are highly specialized parasites that cause significant yield losses worldwide. In this study, we isolated Bacillus pumilus strain S1-10 from the rhizosphere soil of Zingiber officinale Rosc. plants and evaluated its fumigant activity against Meloidogyne incognita. S1-10 exhibited a strong repellent effect on second-stage juveniles (J2s) of M. incognita, and in vitro assays indicated that S1-10 VOCs suppressed J2 activity and egg hatching. Under greenhouse conditions, 71% and 79% reductions of nematodes and eggs were detected on plants treated with S-10 volatile organic compounds (VOCs) compared with controls. Ten VOCs were identified through gas chromatography and mass spectrometry (GC-MS), of which 2-(methylamino)-ethanol (2-ME) had strong fumigant activity against J2s of M. incognita, with a LC50 value of 1.5 mM at 12 h. These results indicate that S1-10 represents a potential novel biocontrol agent for RKNs" |
| Keywords: | Causal Agent Crop Type Disease management Nematodes Subject Areas Vegetables; |
| Notes: | "PublisherDai, Mingming Liu, Rui Jiang, Hao Zhang, Xiaoping Song, Wenwen Zhang, Jie Liang, Chen Zhao, Hong-Hai Shi, Qianqian eng 2023/03/15 Plant Dis. 2023 Mar 14. doi: 10.1094/PDIS-10-22-2391-RE" |
