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Pestalotiopsis pini sp. nov., an emerging pathogen on stone pine (Pinis pinea L.)
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Orientador(es)
Resumo(s)
Research Highlights: Pestalotiopsis pini sp. nov. is an emerging pathogen on stone pine,
Pinus pinea L., in Portugal. Background and Objectives: Stone pine is one of the most important forest
tree species in Portugal and in the whole Mediterranean basin. Pestalotiopsis species are common
endophytes, saprobes or pathogens in a variety of hosts and environments. The objective of the
present study was to identify the Pestalotiopsis species associated with the symptomatic stone pine
trees. Materials and Methods: Samples of stone pine trees showing shoot blight and stem necrosis
were obtained from stone pine orchards and urban areas in Portugal, and the isolated Pestalotiopsis
species were identified based on morphology and combined ITS, TEF and TUB DNA sequence data.
Artificial inoculations on one-year-old stone pine seedlings were performed with the two species
most frequently found in association with shoot blight disease. Results: Five Pestalotiopsis spp. were
isolated. A taxonomic novelty, Pestalotiopsis pini is described, representing a new pathogen for stone
pine. Conclusions: Pestalotiopsis species may represent a threat to the health of pine forests in the
Mediterranean basin. Future research should be done in order to increase our knowledge about the
potential impact of pestalotioid species in stone pine, in order to develop management strategies
against these pathogens
Descrição
Palavras-chave
dieback Mediterranean forests multi-locus phylogeny pathogenicity pestalotioid fungi
Contexto Educativo
Citação
Forests 2020, 11, 805
Editora
MDPI