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Five new species of Neopestalotiopsis associated with diseased Eucalyptus spp. in Portugal

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Abstract

Eucalyptus globulus, an exotic species in Portugal, is one of the dominant and intensively managed forest species in the country. A disease syndrome characterised by leaf necrosis, stem girdling and cutting dieback in eucalyptus and associated with pestalotioid fungi has been detected in nurseries and young plantations in the last years. Twenty-seven isolates were recovered from diseased plants. Phylogenetic analysis based on internal transcribed spacers, partial translation elongation factor 1-α gene and partial β-tubulin gene sequence data grouped the isolates in five separate clades. Combining morphological, cultural and molecular data, five new species of Neopestalotiopsis are described, namely, Neopestalotiopsis eucalyptorum, Neopestalotiopsis hispanica, Neopestalotiopsis iberica, Neopestalotiopsis longiappendiculata and Neopestalotiopsis lusitanica.

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Data availability

Strains are available at MEAN (https://www.iniav.pt/recursos-geneticos-microbianos) and CBS (https://wi.knaw.nl/page/Collection) culture collections. Sequences are available at GenBank (https://www.ncbi.nlm.nih.gov/genbank) and alignments and trees are deposited in TreeBase (https://treebase.org).

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Acknowledgements

The authors would like to thank to Joana Henriques for help on molecular biology, to Isabel Lourenço and Florinda Medeiros for assistance in the Mycology laboratory. We also thank Ana Reis, from Altri Florestal, for providing one sample and Saowaluck Tibpromma, Kunming Institute for Botany, China, for sending sequences before they were made available in GenBank. Alan JL Phillips acknowledges the support from UIDB/04046/2020 and UIDP/04046/2020 Centre grants from FCT, Portugal (to BioISI).

Funding

This work was funded by a collaborative protocol, “Estudo das Doenças do eucalipto – prospecção e controlo” established between INIAV, the RAIZ Institute and Altri Florestal.

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Authors and Affiliations

Authors

Contributions

H.B., E.D., C.I.G. and C.V. designed the experiments; E.D. and A.C.S. performed morphological and phylogenetic analysis; C.I.B and E.D. wrote the first draft of the manuscript; H.B and A.J.L.P. reviewed and edited the manuscript. HB and A.J.L.P. supervised the study. All authors have read, edited and approved the final manuscript.

Corresponding author

Correspondence to Eugénio Diogo.

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Conflict of interest

The authors declare no competing interests.

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Section editor: Marc Stadler

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Diogo, E., Gonçalves, C.I., Silva, A.C. et al. Five new species of Neopestalotiopsis associated with diseased Eucalyptus spp. in Portugal. Mycol Progress 20, 1441–1456 (2021). https://doi.org/10.1007/s11557-021-01741-5

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  • DOI: https://doi.org/10.1007/s11557-021-01741-5

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