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Occurrence of the root-knot nematode Meloidogyne arenaria on balm and in a mix...
Karanastasi, E.; Conceição, I. da; Santos, M. dos; Tzortzakakis, E.; Abrantes, I. de O.Summary The root-knot nematode Meloidogyne arenaria was found in Greece infecting balm (Melissa officinalis L.) and grapevine (Vitis vinifera L.). The isolate from balm was M. arenaria while the one from grapevine was a mixture of M. arenaria and M. javanica (prevalent species). This is the first report of the M. arenaria species in the country in which identification was based on biochemical methods and its o...
Phylogenetic relationships among Trichodorus and Paratrichodorus species
Duarte, I. M.; Almeida, M. T. M.; Brown, D. J. F.; Oliveira, C. M. G.; Riga, E.; Karanastasi, E.; Neilson, R.Resumo do poster apresentado no XXVII ESN International Symposium, Rome, 2004. ; Trichodorid nematodes of the genera Trichodorus and Paratrichodorus are known natural vectors of Tobacco Rattle Virus (TRV) to many agronomically important crops. Previous taxonomic studies have reported several trichodorids, including virus-vector species, from Portugal. The trichodorid group is well defined taxonomically but l...
Molecular diagnosis of Trichodorus and Paratrichodorus species
Duarte, I. M.; Almeida, M. T. M.; Brown, D. J. F.; Oliveira, C. M. G.; Riga, E.; Karanastasi, E.; Neilson, R.Some trichodorid species are known to vector specific strains of Tobacco Rattle Virus (TRV) that have a deleterious effect upon several economically important crops, e.g. potato and tobacco. Given the complex relationship that exists between trichodorids and the various TRV strains, it is imperative that a rapid and accurate identification to species level is achieved for the effective use of control measures w...
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