| Title: | Volatile Metabolites from Brevundimonas diminuta and Nematicidal Esters Inhibit Meloidogyne javanica |
| Author(s): | Sun Y; Ran Y; Yang H; Mo M; Li G; |
| Address: | "State Key Laboratory for Conservation and Utilization of Bio-Resources in Yunnan, School of Life Sciences, Yunnan University, Kunming 650091, China" |
| DOI: | 10.3390/microorganisms11040966 |
| ISSN/ISBN: | 2076-2607 (Print) 2076-2607 (Electronic) 2076-2607 (Linking) |
| Abstract: | "Brevundimonas diminuta is broadly distributed in terrestrial and aquatic environments and has various biological activities. In this study, we found that B. diminuta exhibited nematicidal activity against the plant root-knot nematode, Meloidogyne javanica. A total of 42 volatile organic compounds (VOCs) from B. diminuta were identified using gas chromatography-mass spectrometry (GC-MS). The nematicidal activity of the 10 main VOCs was tested against M. javanica. Butyl butanoate (4 microL) caused the mortality of 80.13% of M. javanica after 4 h. The nematicidal activity of an additional 38 butyl-butyrate-like volatile esters was also investigated. Of these, seven had strong nematicidal activity against M. javanica, five of which showed egg-hatching inhibitory activity. This study is the first to report that butyl butanoate, ethyl 2-methylbutanoate, ethyl 4-methylpentanoate, ethyl pent-4-enoate, and methyl undecanoate have nematicidal activity against M. javanica. The results indicated that B. diminuta could serve as a candidate microorganism for the biocontrol of plant root-knot nematodes, showing that volatile esters have great potential as nematicides" |
| Keywords: | Brevundimonas diminuta Meloidogyne javanica egg-hatching inhibitory esters nematicidal activity volatile metabolites; |
| Notes: | "PubMed-not-MEDLINESun, Yongxiang Ran, Yuan Yang, Hanbo Mo, Minghe Li, Guohong eng 32160012 ??e 3186001/National Natural Science Foundation of China/ Switzerland 2023/04/28 Microorganisms. 2023 Apr 7; 11(4):966. doi: 10.3390/microorganisms11040966" |
