Mathematical Modeling and Review of Pine Wilt Disease

Abdul Ghaffar Khan, Imran -, Hayat Zada, Ansar Hussain, Tariq Mahmood


Pine Wilt Disease (PWD), caused by the pinewood nematode (PWN) Bursaphelenchus xylophilus, causes significant losses in coniferous forests in eastern Asia, including Japan, China, and South Korea, as well as western Europe, including Portugal. The results of the research papers given at the International Symposium on Pine Wilt Disease (IUFRO Working Party Meeting 4.04.03) in Nanjing, China, in July 2009 are summarized in this article. The basic themes discussed included pine wilt disease (PWD), the pinewood nematode (PWN) Bursaphelenchus xylophilus, and other PWN-associated microorganisms that play a significant role in PWD, such as bacteria (e.g., Pseudomonas fluorescens). The majority of the papers are based on PWD-PWN research in East Asia and Russia. The following are some of the specific topics covered: 1) fundamental concepts of PWD development, 2) pathogenicity, 3) host-parasite relationships, including histopathology of diseased conifers and the role of toxins from bacteria-nematode ecto-symbionts, 4) PWN life cycle and transmission, 5) B. xylophilus dissemination models, 6) associations (with other nematodes), 7) diagnostics, 8) quarantine and control of the PWN and 9) biocontrol of the PWN.

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