| Title: | Identification and Characterization of Nematicidal Volatile Organic Compounds from Deep-Sea Virgibacillus dokdonensis MCCC 1A00493 |
| Author(s): | Huang D; Yu C; Shao Z; Cai M; Li G; Zheng L; Yu Z; Zhang J; |
| Address: | "State Key Laboratory of Agricultural Microbiology, National Engineering Research Center of Microbe Pesticides, College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China. Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen 361005, China" |
| DOI: | 10.3390/molecules25030744 |
| ISSN/ISBN: | 1420-3049 (Electronic) 1420-3049 (Linking) |
| Abstract: | "Root-knot nematode diseases cause severe yield and economic losses each year in global agricultural production. Virgibacillus dokdonensis MCCC 1A00493, a deep-sea bacterium, shows a significant nematicidal activity against Meloidogyne incognita in vitro. However, information about the active substances of V. dokdonensis MCCC 1A00493 is limited. In this study, volatile organic compounds (VOCs) from V. dokdonensis MCCC 1A00493 were isolated and analyzed through solid-phase microextraction and gas chromatography-mass spectrometry. Four VOCs, namely, acetaldehyde, dimethyl disulfide, ethylbenzene, and 2-butanone, were identified, and their nematicidal activities were evaluated. The four VOCs had a variety of active modes on M. incognita juveniles. Acetaldehyde had direct contact killing, fumigation, and attraction activities; dimethyl disulfide had direct contact killing and attraction activities; ethylbenzene had an attraction activity; and 2-butanone had a repellent activity. Only acetaldehyde had a fumigant activity to inhibit egg hatching. Combining this fumigant activity against eggs and juveniles could be an effective strategy to control the different developmental stages of M. incognita. The combination of direct contact and attraction activities could also establish trapping and killing strategies against root-knot nematodes. Considering all nematicidal modes or strategies, we could use V. dokdonensis MCCC 1A00493 to set up an integrated strategy to control root-knot nematodes" |
| Keywords: | Acetaldehyde/isolation & purification/pharmacology Animals Antinematodal Agents/*isolation & purification/pharmacology Aquatic Organisms Benzene Derivatives/isolation & purification/pharmacology Butanones/isolation & purification/pharmacology Chemotaxis/d; |
| Notes: | "MedlineHuang, Dian Yu, Chen Shao, Zongze Cai, Minmin Li, Guangyu Zheng, Longyu Yu, Ziniu Zhang, Jibin eng DY135-B2-17/China Ocean Mineral Resources Research and Development Association/ 2017ABA072/the Major Projects of Technological Innovation in Hubei Province, China/ Switzerland 2020/02/14 Molecules. 2020 Feb 9; 25(3):744. doi: 10.3390/molecules25030744" |
