Low temperature induces two growth-arrested stages and change of secondary metabolites in Bursaphelenchus xylophilus
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- Li Lin Zhao
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, P.R. China
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- Wei Wei
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, P.R. China
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- David L. Kulhavy
- Arthur Temple College of Forestry and Agriculture, Stephen F. Austin State University, Nacogdcohes, TX 75962, USA
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- Xing Yao Zhang
- Research Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Beijing 100091, P.R. China
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- Jiang Hua Sun
- State Key Laboratory of Integrated Management of Pest Insects and Rodents, Institute of Zoology, Chinese Academy of Sciences, Beijing 100080, P.R. China;, Email: sunjh@ioz.ac.cn
説明
<jats:sec> <jats:title>Abstract</jats:title> <jats:p>The third-stage dispersal juvenile (JIII) is the stage for survival and dispersal in the winter of the pine wood nematode, Bursaphelenchus xylophilus. Through investigations at different temperatures, we found two kinds of growth-arrested development, including the adult longevity extension and JIII formation induced by low temperature. They showed similar characters: densely packed lipid droplets and extended longevity. We considered that there were four stages in the formation of growth-arrested stages: induction, growth-arrested pathway, growth-arrested development and cold-tolerance duration. Moreover, at 4°C there were significant changes in secondary metabolites, which may be related to signal communication and metabolism associated with the formation of growth-arrested stages. The results suggested that low temperature was necessary for the dispersal of pine wood nematode and influenced distribution and intensity of pine wilt.</jats:p> </jats:sec>
収録刊行物
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- Nematology
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Nematology 9 (5), 663-670, 2007
Walter de Gruyter GmbH
