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松材线虫体内细菌对宿主繁殖和致病力的影响(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2016年03期
Page:
47-51
Column:
研究论文
publishdate:
2016-05-18

Article Info:/Info

Title:
Effects of endobacteria on reproduction and virulence of Bursaphelenchus xylophilus
Article ID:
1000-2006(2016)03-0047-05
Author(s):
HE Longxi12 XUE Qi1 WU Xiaoqin1*
1.Co-Innovation Center for Sustainable Forestry in Southern China, Jiangsu Key Laboratory for Pest Prevention and Management of Invasive specie, College of Forestry, Nanjing Forestry University, Nanjing 210037, China;
2. Jiangxi Forest Pest Control and Quarantine Bureau, Nanchang 330038, China
Keywords:
Bursaphelenchus xylophilus Stenotrophomonas maltophilia reproduction virulence masson pine
Classification number :
S763.16
DOI:
10.3969/j.issn.1000-2006.2016.03.008
Document Code:
A
Abstract:
To investigate the role of endobacterium in the pine wilt disease, the reproduction and virulence of non-parasitic Bursaphelenchus xylophilus, B. xylophilus treated with endobactria and wild-type B. Xylophilus were measured. We found that the spawning number, hatching rate and reproduction number of aseptic B. xylophilus was higher than B. xylophilus treated with bacteria in non-parasitic condition. Extracellular metabolism of endobacterium could inhibit the reproduction of B. xylophilus. After inoculated with 3 years old Pinus massoniana, the reproduction number of nematodes from high to low was as follow:wild-type B. xylophilus>B. xylophilus treated with endobacterium> aseptic B. xylophilus. The pines that inoculated with wild-type B. xylophilus firstly occurred wilting and the course of disease was the shortest in the three different treatments of B. xylophilus. Secondly, the B. xylophilus treated with endobacteria appeared wilting, and the aseptic B. xylophilus appeared lastly. These results indicated that endobacterium exerted different effect on the development of B. xylophilus in non-parasitic and parasitism condition and could enhance the virulence of nematode.

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Last Update: 2016-06-30