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Int. J. Mol. Sci. 2015, 16(3), 5216-5234; doi:10.3390/ijms16035216

Molecular Characterization and Functional Analysis of Three Pathogenesis-Related Cytochrome P450 Genes from Bursaphelenchus xylophilus (Tylenchida: Aphelenchoidoidea)

1,2
,
1,2,* , 1,2
and
1,2
1
Co-Innovation Center for Sustainable Forestry in Southern China, College of Forestry, Nanjing Forestry University, Nanjing 210037, China
2
Jiangsu Key Laboratory for Prevention and Management of Invasive Species, Nanjing Forestry University, Nanjing 210037, China
*
Author to whom correspondence should be addressed.
Academic Editor: Jan Schirawski
Received: 22 December 2014 / Revised: 5 February 2015 / Accepted: 15 February 2015 / Published: 6 March 2015
(This article belongs to the Special Issue Plant Microbe Interaction)
View Full-Text   |   Download PDF [4454 KB, uploaded 6 March 2015]   |  

Abstract

Bursaphelenchus xylophilus, the causal agent of pine wilt disease, causes huge economic losses in pine forests. The high expression of cytochrome P450 genes in B. xylophilus during infection in P. thunbergii indicated that these genes had a certain relationship with the pathogenic process of B. xylophilus. Thus, we attempted to identify the molecular characterization and functions of cytochrome P450 genes in B. xylophilus. In this study, full-length cDNA of three cytochrome P450 genes, BxCYP33C9, BxCYP33C4 and BxCYP33D3 were first cloned from B. xylophilus using 3' and 5' RACE PCR amplification. Sequence analysis showed that all of them contained a highly-conserved cytochrome P450 domain. The characteristics of the three putative proteins were analyzed with bioinformatic methods. RNA interference (RNAi) was used to assess the functions of BxCYP33C9, BxCYP33C4 and BxCYP33D3. The results revealed that these cytochrome P450 genes were likely to be associated with the vitality, dispersal ability, reproduction, pathogenicity and pesticide metabolism of B. xylophilus. This discovery confirmed the molecular characterization and functions of three cytochrome P450 genes from B. xylophilus and provided fundamental information in elucidating the molecular interaction mechanism between B. xylophilus and its host plant. View Full-Text
Keywords: pine wood nematode; cytochrome P450 (CYP); rapid-amplification of cDNA ends (RACE); RNA interference (RNAi); detoxification pine wood nematode; cytochrome P450 (CYP); rapid-amplification of cDNA ends (RACE); RNA interference (RNAi); detoxification
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Xu, X.-L.; Wu, X.-Q.; Ye, J.-R.; Huang, L. Molecular Characterization and Functional Analysis of Three Pathogenesis-Related Cytochrome P450 Genes from Bursaphelenchus xylophilus (Tylenchida: Aphelenchoidoidea). Int. J. Mol. Sci. 2015, 16, 5216-5234.

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