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The mitochondrial genome of the pinewood nematode (Bursaphelenchus xylophilus) ...

Moreira, Claudia; Asch, Barbara; Fonseca, Luis; Pereira-Castro, Isabel; Silva, Raquel; Azevedo, Luísa; Mota, Manuel; Abrantes, Isabel; Amorim, António

The pinewood nematode (PWN) Bursaphelenchus xylophilus is the causative agent of pine wilt disease and the greatest biological threat to conifer forests worldwide. Here we describe the near-complete mitochondrial DNA (mtDNA) sequence (12,945 bp) of the PWN lineage recently introduced in Europe. The absence of polymorphisms across the mtDNA of three Portuguese isolates suggests that a single mitochondrial lineag...


New Insights into the Phylogeny and Worldwide Dispersion of Two Closely Related...

Pereira, Filipe; Moreira, Claudia; Fonseca, Luis; Asch, Barbara; Mota, Manuel; Abrantes, Isabel; Amorim, António

The pinewood nematode, Bursaphelenchus xylophilus, is one of the greatest threats to coniferous forests worldwide, causing severe ecological damage and economic loss. The biology of B. xylophilus is similar to that of its closest relative, B. mucronatus, as both species share food resources and insect vectors, and have very similar morphological characteristics, although little pathogenicity to conifers has bee...


Coniferous bark hot steam treatment for the elimination of the pinewood nematode

Fonseca, Luís; Santos, José António dos; Nestler, Hartmut; Verdasca, Joaquim; Oliveira, Rui; Abrantes, Isabel; Serra, Clara

In order to develop an artificial heat treatment to eliminate the pinewood nematode (PWN), Bursaphelenchus xylophilus, from coniferous bark, an industrial equipment, based on hot steam was build up which enables continuous bark treatment for more than 30 min with temperatures above 80ºC. Biological assays were performed using experimental units (bags) with Pinus pinaster bark and wood chips containing more than...

Data: 2013   |   Origem: Repositório do LNEG

The pinewood nematode, Bursaphelenchus xylophilus, in Madeira Island

Fonseca, L; Cardoso, J.M.S.; Lopes, A; Pestana, M; Abreu, F; Nunes, N; Mota, Manuel; Abrantes, Isabel

The environmental conditions in Madeira Island are favorable for the presence and dissemination of the pinewood nematode (PWN), Bursaphelenchus xylophilus. Five hundred Pinus pinaster wood samples were collected in several forest areas and PWN was detected in 22.8 % of the samples. Bursaphelenchus xylophilus isolates from Madeira Island displayed the species-specific diagnostic characters. A morphological varia...


Ciência, Crise e Mudança. 3.º Encontro Nacional de História das Ciências e da T...

Brandão, José Manuel; Nunes, Maria de Fátima; Dias, Pedro Sousa; Abrantes, Isabel; Almeida, Maria Antónia; Antunes, Carlos; Assis, José Luís

III Encontro Nacional de História das Ciências e da Tecnologia. O Centro de Estudos de História e Filosofia da Ciência, organiza o 3.º Encontro Nacional de História da Ciência e da Técnica, sob o tema «Ciência, Crise e Mudança» que tem lugar na Universidade de Évora, nos dias 26, 27 e 28 de Setembro de 2012. O Primeiro Encontro Nacional de História da Ciência teve lugar em 21 e 22 Julho de 2009, no seguimento ...


Coniferous bark heat treatment for the elimination of the pinewood nematode

Santos, José António dos; Fonseca, Luís; Naves, Pedro; Nestler, Hartmut; Oliveira, Rui; Verdasca, Joaquim; Sousa, Edmundo; Abrantes, Isabel

Data: 2012   |   Origem: Repositório do LNEG

Coniferous bark heat treatment for the elimination of the pinewood nematode by ...

Serra, Clara; Santos, José António dos; Fonseca, Luís; Abrantes, Isabel

Data: 2012   |   Origem: Repositório do LNEG

Nematodes associated with cork oak, Quercus suber, in Montado ecosystems

Costa, S. R.; Martins, Ana F.; Arosa, Maria Luisa; Freitas, Helena; Almeida, M. T. M.; Maleita, Carla M. N.; Abrantes, Isabel Maria de Oliveira

ONTA - Organization of Nematologists of Tropical America


Diversity of Bacteria Associated with Bursaphelenchus xylophilus and Other Nema...

Proença, Diogo Neves; Francisco, Romeu; Santos, Clara Vieira; Lopes, André; Fonseca, Luís; Abrantes, Isabel M. O.; Morais, Paula V.

The pinewood nematode (PWN), Bursaphelenchus xylophilus, has been thought to be the only causal agent of pine wilt disease (PWD), however, since bacteria have been suggested to play a role in PWD, it is important to know the diversity of the microbial community associated to it. This study aimed to assess the microbial community associated with B. xylophilus and with other nematodes isolated from pine trees, Pi...


Risk assessment and ecological sustainability of cork oak in montado ecosystems

Costa, S. R.; Freitas, H.; Abrantes, Isabel Maria de Oliveira; Cravador, A.; Almeida, M. T. M.


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    Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência Programa Operacional da Sociedade do Conhecimento União Europeia