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Cryphonectria parasitica in UK: distribution and diversity of vegetative compatibility types and mating types and associated mycoviruses detection, transmission and hypovirulence.

Current projects

Chestnut Blight

  • Vegetative compatibility groups (vcgs) classic screening among UK isolates.
  • Vcgs molecular profiling by six vic genes alleles DNA amplifications.
  • Linkage with particular countries in Europe, Asia and/or America.
  • Pathogenicity and hypovirulence in sweet chestnut sticks and seedlings.
  • Hypo- and reo-viruses detection by RNA extraction and one-step r-t PCRs and amplicons sequencing.
  • On-plates and sweet chestnut sticks viruses transmission trials.
  • Collate and analyse the data. Bring key and specialized knowledge and most up-to-date protocols. Further tests in new UK and northern France isolates.

Pedro joined Forest Research in 2017 to work in the tree health diagnostic and advisory service. He studied biology at Salamanca University after which he received a PhD at the Basque Country University in 2008 for his thesis on the diagnostics, epidemiology and integrated control of conifer bark beetles-associated fungi. Pedro previously worked at the Basque Institute for Agricultural Research and Development (2003-2007, 2008-2010), FABI, Forestry and Agricultural Biotechnology Institute (2011-2013) and the UPV-EHU, Basque Country University (2014-2016).

Affiliations

  • Member of SEF, Spanish Society of Plant Pathology
  • Member of SEEA, Spanish Society of Applied Entomology
  • Elsevier reviewer for Fungal Ecology
  • Elsevier reviewer for Fungal Biology
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Pedro Romón Ochoa

BSc, PhD
Chestnut Blight Researcher
Tree health

Alice Holt

Alice Holt Lodge

Wrecclesham

Farnham

Surrey

Other Research

Chestnut Blight

Peer reviewed journal articles

Romon-Ochoa, P., Gorton, C., Lewis, A., van Der Linde, S., Webber. J., Pérez-Sierra, A. 2019. Hypovirulent effect of the Cryphonectria Hypovirus 1 in British isolates of Cryphonectria parasitica. Pest Management Science, DOI10.1002/ps.5644.

Perez-Sierra, A., Romon-Ochoa, P., Gorton, C., Lewis, A., Rees, H., Van Der Linde, S., Webber, J. 2019. High vegetative compatibility diversity of Cryphonectria parasitica infecting sweet chestnut (Castanea sativa) in Britain indicates multiple pathogen introductions. Plant Pathology, 68: 727-737.

Romón, P., Hatting, H., Goldarazena, A., Iturrondobeitia, J.C. 2018. Variability of deltamethrin-resistant Metarhizium anisopliae aggressive strains group to a population of the cossid moth from Eucalyptus nitens. Open Journal of Forestry, 08: 196-204.

Perez de Heredia, I., Darrouzet, E., Goldarazena, A., Romón, P., Iturrondobeitia, J.C. 2017. Differentiating between gynes and workers in the invasive hornet Vespa velutina (Hymenoptera, Vespidae) in Europe. Journal of Hymenopteran Research, 60: 119-133.

Romón, P., Aparicio, D., Palacios, F., Iturrondobeitia, J.C., Hance, T., Goldarazena, A. 2017. Seasonal terpene variation in needles of Pinus radiata trees attacked by Tomicus piniperda (Coleoptera: Scolytinae) and effect of limonene on beetle aggregation. Journal of Insect Science, 98: 1-6.

Romón, P., Hatting, H., Goldarazena, A., Iturrondobeitia, J.C. 2017. Variation in virulence of Beauveria bassiana and B. pseudobassiana to the pine weevil Pissodes nemorensis in relation to mycelium characteristics and virulence genes. Fungal Biology, 121: 189-197.

Goldarazena, A., Perez de Heredia, I., Romón, P., Iturrondobeitia, J.C., González M., López S. 2015. Spread of the yellow-legged hornet Vespa velutina nigrithorax du Buysson (Hymenoptera: Vespidae) across Northern Spain. EPPO Bulletin, 45: 1-6.

González, M., López, S., Romón, P., Iturrondobeitia, J.C., Goldarazena, A. 2014. Phenology, ecology and diversity of the family Ceratopogonidae (Diptera: Nematocera), excluding the genus Culicoides, in the Basque Country region (Iberian Peninsula). Boletin de la Sociedad Entomologica Aragonesa, 55: 205-215.

Romón, P., De Beer, Z.W., Fernández, M., Diez, J., Wingfield, B.D., Wingfield, M.J. 2014. Ophiostomatoid fungi including two new species associated with pine root-feeding beetles in northern Spain. Antonie van Leeuwenhoek, 106: 1167-1184.

Romón, P., De Beer, Z.W., Zhou, X.D., Duong, T.A., Wingfield, B.D., Wingfield, M.J. 2014. Multigene phylogenies of Ophiostomataceae ascomycetes associated with Monterey pine bark beetles in Spain reveal three new fungal species. Mycologia, 106: 119-132.

González, M., Baldet, T., Delecolle, J.C., López, S., Romón, P., Goldarazena, A. 2013. Monitoring of Culicoides Latreille (Diptera: Ceratopogonidae) after BTV outbreaks, in sheep farms and natural habitats from the Basque Country (northern Spain). Proceedings of the Entomological Society of Washington, 115: 48-69.

Romón, P., Higuera, M., Delecolle, J.C., Baldet, T., Aduriz, G., Goldarazena, A. 2012. Phenology and attraction of potential Culicoides vectors of bluetongue virus in Basque Country (northern Spain). Veterinary Parasitology, 186: 415-424.

Book and book chapters (including published conference proceedings)

Goldarazena, A., Romón, P., López, S. 2012. Bark beetles control in forest of northern Spain. In: Integrated Pest Management and Pest Control – Current and Future Tactics. INTECH (Ed.). pp.: 323-352. ISBN: 978-953-51-0050-8.

Romón, P., Troya, M., Fernández de Gamarra, M.E., Eguzkitza, A., Iturrondobeitia, J.C., Goldarazena, A. 2010. Comunidades fúngicas asociadas al chancro resinoso de Pinus radiata causado por Fusarium circinatum en el Norte de España: asociación con insectos e interacciones patógeno-saprófitos. In: XV Congreso de la Sociedad Española de Fitopatología. Resumenes de ponencias. Gráficas Varona (Ed.). pp.: 411. Depósito Legal VI-427/2010.

Romón, P., Troya, M., Fernández de Gamarra, M.E., Eguzkitza, A., Iturrondobeitia, J.C., Goldarazena, A. 2008. Fungal community associated with pitch canker disease of Monterey pine caused by Fusarium circinatum in Northern Spain: association with insects and pathogen-saprophytes antagonistic interactions. Canadian Journal of Plant Pathology, 30: 241-253.

Goldarazena, A., Romón, P., Aduriz, G., Balenguien, T., Baldet, T., Delecolle, J.C. 2008. First record of Culicoides imicola, the main vector of bluetongue virus in Europe, in the Basque Country (Northern Spain). Veterinary Record, 162: 820-821.

Romón, P., Zhou, X.D., Iturrondobeitia, J.C., Wingfield, M.J., Goldarazena, A. 2007. Ophiostoma species (Ascomycetes: Ophiostomatales) associated with bark beetles (Coleoptera: Scolytinae) colonizing Pinus radiata in Northern Spain. Canadian Journal of Microbiology, 53: 756-767.

Romón, P., Iturrondobeitia, J.C., Gibson, K., Lindgren, B.S., Goldarazena, A. 2007. Quantitative association of bark beetles with pitch canker fungus and effects of verbenone on their semiochemical communication in Monterey pine forests in Northern Spain. Environmental Entomology, 36: 743-750.