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European Journal of Plant Pathology

, Volume 146, Issue 2, pp 245–257 | Cite as

Diversity and potential impact of Botryosphaeriaceae species associated with Eucalyptus globulus plantations in Portugal

  • Carla Barradas
  • Alan J. L. Phillips
  • António Correia
  • Eugénio Diogo
  • Helena Bragança
  • Artur Alves
Article

Abstract

Eucalyptus globulus, a non-native species, is currently the most abundant forest species in Portugal. This economically important forest tree is exploited mainly for the production of pulp for the paper industry. The community of Botryosphaeriaceae species occurring on diseased and healthy E. globulus trees was studied on plantations throughout the country. Nine species from three different genera were identified, namely Botryosphaeria (B. dothidea), Diplodia (D. corticola and D. seriata) and Neofusicoccum (N. australe, N. algeriense, N. eucalyptorum, N. kwambonambiense, N. parvum and Neofusicoccum sp.). Of these, N. algeriense, D. corticola and D. seriata are reported for the first time on E. globulus, while N. algeriense, N. eucalyptorum and N. kwambonambiense correspond to first reports in Portugal. The genus Neofusicoccum was clearly dominant with N. australe and N. eucalyptorum being the most abundant species on both diseased and healthy trees. In artificial inoculation trials representative isolates from all nine species were shown to be pathogenic to E. globulus but there were marked differences in aggressiveness between them. Thus, D. corticola and N. kwambonambiense were the most aggressive while B. dothidea and D. seriata were the least aggressive of the species studied.

Keywords

Botryosphaeria Diplodia Neofusicoccum Canker Dieback Endophytic 

Notes

Acknowledgments

This work was financed by European Funds through COMPETE and by National Funds through the Portuguese Foundation for Science and Technology (FCT) within project PANDORA (PTDC/AGR-FOR/3807/2012 – FCOMP-01-0124-FEDER-027979). The authors acknowledge FCT financing to CESAM (UID/AMB/50017/2013), Artur Alves (FCT Investigator Programme – IF/00835/2013) and Carla Barradas (PhD grant –SFRH/BD/77939/2011). The authors are thankful to Altri Florestal, SA for supplying diseased plant material from their plantations as well as the E. globulus clone used for pathogenicity trials.

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Copyright information

© Koninklijke Nederlandse Planteziektenkundige Vereniging 2016

Authors and Affiliations

  • Carla Barradas
    • 1
  • Alan J. L. Phillips
    • 2
  • António Correia
    • 1
  • Eugénio Diogo
    • 3
  • Helena Bragança
    • 3
  • Artur Alves
    • 1
  1. 1.Departamento de BiologiaCESAM, Universidade de AveiroAveiroPortugal
  2. 2.UCIBIO, Departamento de Ciências da Vida, Faculdade de Ciências e TecnologiaUniversidade Nova de LisboaCaparicaPortugal
  3. 3.Instituto Nacional de Investigação Agrária e VeterináriaOeirasPortugal

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