Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/9944
Título: Susceptibility evaluation of Picea abies and Cupressus lusitanica to the pinewood nematode, Bursaphelenchus xylophilus
Autor: Silva, M. Nunes da
Lima, M. R. M.
Vasconcelos, M. W.
Palavras-chave: Chlorophyll
Disease resistance
Lignin
Phenolic compounds
Pine wilt disease
Pinus pinaster
Data: 2013
Editora: British Society for Plant Pathology
Citação: SILVA, M. Nunes da; LIMA, M. R. M.; VASCONCELOS, M. W. - Susceptibility evaluation of Picea abies and Cupressus lusitanica to the pinewood nematode, Bursaphelenchus xylophilus. Plant Pathology. ISSN 1365-3059. vol. 62, nº6 (2013), p. 1398-1406
Resumo: Pine wilt disease (PWD), recently introduced into Europe, is caused by the pine wood nematode (PWN) Bursaphelen- chus xylophilus and is a devastating illness that affects mainly pine trees. It is known that the PWN is capable of infecting other conifers; however, there is currently no information on which other plant species may be susceptible to PWD. In this study, the potential susceptibility of two common species of European forests, Picea abies and Cupressus lusitanica, to PWN was assessed through the monitoring of visual external symptoms, dimension and localization of the nematode population in stems, quantification of total chlorophyll, total soluble phenolics and lignin, at 7, 14, 21 and 28 days after inoculation. The degree of susceptibility was established through the comparison of symptoms with Pinus pinaster, a well-known PWN host. Furthermore, the stem ultrastructure of P. abies, C. lusitanica and Pn. pinas- ter was analysed by scanning electron microscopy. The results suggest that P. abies and C. lusitanica are resistant to PWN, and that lignin biosynthesis in these species is affected at an early stage of the infestation. Nevertheless, P. abies seems to be a compatible host that could act as a repository for PWN.
Peer review: yes
URI: http://hdl.handle.net/10400.14/9944
Versão do Editor: Doi: 10.1111/ppa.12037
Aparece nas colecções:CBQF - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

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