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José Marques historiador e medievalista

Algumas considerações a propósito da documentação existente em Barcelona respei...

Alguns aspectos das relações diplomáticas entre Portugal e Castela em meados do...

Uma carta do Condestável Dom Pedro sobre a política marroquina de D. Afonso V

Portugal e o Mediterrâneo, entre Castela e Marrocos : a formação da fronteira m...

Through the dialectic of the maritime areas with relevance in medieval Portuguese history (the Atlantic and the Mediterranean), the paper stresses its importance in the relations with Castile and Morocco. It also examines the four dimensions of the maritime frontier: affirmation of naval power, border of the geography of Christendom, diplomatic articulation with Castile, and rear. It ends with a reflection abou...

As relações entre história e literatura no contexto da actual crise da dimensão...

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

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...

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...

Assessment of the Geographic Origins of Pinewood Nematode Isolates via Single N...

The pinewood nematode, Bursaphelenchus xylophilus, is native to North America but it only causes damaging pine wilt disease in those regions of the world where it has been introduced. The accurate detection of the species and its dispersal routes are thus essential to define effective control measures. The main goals of this study were to analyse the genetic diversity among B. xylophilus isolates from different...

Nematicidal Bacteria Associated to Pinewood Nematode Produce Extracellular Prot...

Bacteria associated with the nematode Bursaphelenchus xylophilus, a pathogen of trees and the causal agent of pine wilt disease (PWD) may play a role in the disease. In order to evaluate their role (positive or negative to the tree), strains isolated from the track of nematodes from infected Pinus pinaster trees were screened, in vitro, for their nematicidal potential. The bacterial products, from strains more ...