Autor(es):
Mota, Manuel 
; Vieira, Paulo
Data: 2004
Identificador Persistente: http://hdl.handle.net/10174/6729
Origem: Repositório Científico da Universidade de Évora
Assunto(s): pinewood Nematode; threat; pine wilt disease; forest ecosystems; Bursaphelenchus xylophilus
Descrição
According to the European Plant Protection Organization, the pinewood nematode
(PWN), Bursaphelenchus xylophilus is a quarantine organism at the top of the list of the
pathogenic species. PWN may be found in North America (Canada, USA and Mexico)
and in East Asia (Japan, Korea, China and Taiwan) and has a highly destructive capability
towards conifers, in a relatively short time, causing serious economic damage in Japan,
China and Korea. This nematode surveying is extremely important and a correct identification
of nematode species associated with conifers is essential. Several conifers species
are very susceptible (Pinus sylvestris, Pinus nigra and Pinus pinaster), the last one
(maritime pine) is a particulary important economic specie in Portugal, and in southern
Europe.
In 1999, this nematode was found and identified for the first time in Portugal and in
Europe. During 1999 and 2000, the Portuguese government, following an alert provided
to European Community officials initiated an extensive national survey. During 2000 and
2001, research has been carried out regarding the morphobiometric as well as molecular
(DNA: ITS-RFLP) characterization of the collected populations, as well as closely related
species of Bursaphelenchus.
The book details the Proceedings of an international workshop held at the University of
Évora in 2001, covering all major aspects of the bioecology of the pinewood nematode
(PWN), Bursaphelenchus xylophilus, its insect vectors and effects on the tree.
Topics covered are: global issues and national surveys; morphology and molecular
methods of identification of PWN; ecology and epidemiology; quarantine issues; tree
physiology, resistance and histopathology; biology of PWN and relationships to its
cerambycid vectors; control methods. General quarantine and political views are also
presented.
