Document Type
Article
Publication Date
5-17-2007
Abstract
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.
Repository Citation
Zhao, L. L.; Wei, W.; Kulhavy, David L.; Zhang, Xing Yao; and Sun, Jiang Hua, "Low temperature induces two growth-arrested stages and change of secondary metabolites in Bursaphelenchus xylophilus" (2007). Faculty Publications. 268.
https://scholarworks.sfasu.edu/forestry/268
Comments
Posted with permission of Nematology (appeared in Nematology 9(5) 2007)