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Silva Fennica 1926-1997
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Acta Forestalia Fennica
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Articles by Eeva J. Vainio

Category: Research article

article id 500, category Research article
Jarkko Hantula, Eeva Vainio. (2003). Specific primers for the differentiation of Heterobasidion annosum (s.str.) and H. parviporum infected stumps in northern Europe. Silva Fennica vol. 37 no. 2 article id 500. https://doi.org/10.14214/sf.500
Two separate amplification products from random amplified microsatellite fingerprints of Heterobasidion annosum (s.str.) and H. parviporum were converted to specific markers. The markers were tested to be species specific and combined to a single PCR-reaction, which allowed the detection and identification of the two fungi directly from wood samples.
  • Hantula, Finnish Forest Research Institute. Fax +358 9 8570 5531 ORCID ID:E-mail: jarkko.hantula@metla.fi (email)
  • Vainio, Finnish Forest Research Institute. Fax +358 9 8570 5531 ORCID ID:E-mail:

Category: Research note

article id 7749, category Research note
Eeva J. Vainio, Sannakajsa M. Velmala, Pertti Salo, Seppo Huhtinen, Michael M. Müller. (2017). Defoliation of Tilia cordata trees associated with Apiognomonia errabunda infection in Finland. Silva Fennica vol. 51 no. 4 article id 7749. https://doi.org/10.14214/sf.7749
Highlights: Defoliation of Tilia cordata was investigated by fungal isolation from symptomatic leaf petioles and ITS sequence determination; The disease symptoms were associated with the presence of Apiognomonia errabunda; We report the first nucleotide sequences of A. errabunda from the Nordic countries.

We investigated the causative agent of a disease outbreak affecting small-leaved limes (Tilia cordata Mill.) and resulting in darkening of the leaf petioles and excessive defoliation during summer 2016 in southern Finland. The fungal species composition of the symptomatic petioles was examined by culture isolation and molecular identification using ITS rDNA sequences, which revealed the most prevalent fungal species present in the petioles as Apiognomonia errabunda (Roberge) Höhn. Based on reviewing curated herbarium specimens deposited at the Universities of Helsinki and Turku, A. errabunda is native and widely distributed in small-leaved limes in Finland, and occasionally infects also other broadleaved trees, including Quercus robur L. and ornamental species of Tilia L. and Fagus L. The ITS sequence analysis conducted during this study revealed minor within-species polymorphisms similar to those observed earlier in the Central European and Russian populations of A. errabunda, and reports the first nucleotide sequences of this species from the Nordic countries.

  • Vainio, Natural Resources Institute Finland (Luke), Management and Production of Renewable Resources, P.O. Box 2, FI-00791 Helsinki, Finland ORCID ID: http://orcid.org/0000-0002-6739-7968 E-mail: eeva.vainio@luke.fi (email)
  • Velmala, Natural Resources Institute Finland (Luke), Management and Production of Renewable Resources, P.O. Box 2, FI-00791 Helsinki, Finland ORCID ID:E-mail: sannakajsa.velmala@luke.fi
  • Salo, Finnish Museum of Natural History, Botanical Museum, P.O. Box 7, FI-00014 University of Helsinki, Finland ORCID ID:E-mail: pertti.salo@helsinki.fi
  • Huhtinen, University of Turku, Herbarium, Biodiversity Unit, FI-20014 Turku, Finland ORCID ID:E-mail: sephuh@utu.fi
  • Müller, Natural Resources Institute Finland (Luke), Management and Production of Renewable Resources, P.O. Box 2, FI-00791 Helsinki, Finland ORCID ID:E-mail: micms.muller@gmail.com

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