Pathogenic Variability Among Populations of the Pinewood Nematode, Bursaphelenchus Xylophilus
Virulence of populations of Bursaphelenchus spp. associated with conifers varies throughout the range of this nematode in the United States and Japan. Populations of B. xylophilus (pinewood nematode, PWN) from Japanese black and red pine in the same and distantly separated pine stands in Japan range in virulence from 0-100% and there is a tendency for the most virulent populations to be in the northernmost part of the nematode's range where establishment has been relatively recent. Virulence of PWN populations, however, does not vary within a single pine or vector insect. Isozyme patterns are similar between virulent and avirulent populations and therefore cannot be used to differentiate them. Aspartate transaminase isozyme patterns can be used to differentiate between B. xylophilus and B. mucronatus. Pathogenicity of PWN in the United States depends on the interaction of the pine species with different PWN populations, the physiological status of the infected pine, and environmental conditions. Mating and reproductive potential, virulence, DNA sequence differences determined by restriction fragment length polymorphisms, and isozyme differences are useful criteria for studying population biology and genetics of PWN, and when used together, for describing speciation of Bursaphelenchus associated with conifers. For. Sci. 36(4):1061-1076.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
Document Type: Journal Article
Affiliations: Professor and Chair, Department of Biology, Saint Louis University, 3507 Laclede Av., St. Louis, MO 63103-2010
Publication date: 1990-12-01
More about this publication?
- Important Notice: SAF's journals are now published through partnership with the Oxford University Press. Access to archived material will be available here on the Ingenta website until March 31, 2018. For new material, please access the journals via OUP's website. Note that access via Ingenta will be permanently discontinued after March 31, 2018. Members requiring support to access SAF's journals via OUP's site should contact SAF's membership department for assistance.
Forest Science is a peer-reviewed journal publishing fundamental and applied research that explores all aspects of natural and social sciences as they apply to the function and management of the forested ecosystems of the world. Topics include silviculture, forest management, biometrics, economics, entomology & pathology, fire & fuels management, forest ecology, genetics & tree improvement, geospatial technologies, harvesting & utilization, landscape ecology, operations research, forest policy, physiology, recreation, social sciences, soils & hydrology, and wildlife management.
Forest Science is published bimonthly in February, April, June, August, October, and December.
2016 Impact Factor: 1.782 (Rank 17/64 in forestry)
Average time from submission to first decision: 62.5 days*
June 1, 2016 to Feb. 28, 2017
Also published by SAF:
Journal of Forestry
Other SAF Publications
- Submit a Paper
- Membership Information
- Author Guidelines
- Ingenta Connect is not responsible for the content or availability of external websites