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- Title
The effect of endobacteria on the development and virulence of the pine wood nematode, Bursaphelenchus xylophilus.
- Authors
Xiao-Jing TIAN; Xiao-Qin WU; Yang XIANG; Xin FANG; Jian-Ren YE
- Abstract
Pine wilt disease (PWD) caused by the pine wood nematode (PWN), Bursaphelenchus xylophilus, is a destructive forest disease. Recent studies showed that bacteria associated with PWN might play important roles in PWD. In this study, the effects of endobacteria isolated from PWN on the development and virulence of PWN were evaluated. The results revealed that endobacteria isolated from high virulence PWN could partially promote the development of the nematode, while endobacteria from PWN with low virulence could inhibit the development of nematode. Both bacteria-free and non-sterilised nematodes were able to infect microcuttings of Pinus densiflora. The endobacterial isolates, Stenotrophomonas maltophilia NSBx.14 and Achromobacter xylosoxidans ssp. xylosoxidans NSBx.22, enhanced the virulence of low virulence PWN but reduced the virulence of high virulence PWN. The results suggest the pathogenicity of PWN is not affected by loss of bacteria and endobacteria might play a role in the development and virulence of PWN.
- Subjects
PINEWOOD nematode; MICROBIAL virulence; NEMATODE development; BACTERIA; PLANT cuttings
- Publication
Nematology, 2015, Vol 17, Issue 5, p581
- ISSN
1388-5545
- Publication type
Article
- DOI
10.1163/15685411-00002892