Studies in Mycology (2014) 79, 121-186

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S.S.N. Maharachchikumbura, K.D. Hyde, J.Z. Groenewald, J. Xu and P.W. Crous (2014)
Pestalotiopsis revisited
Studies in Mycology 79 (1), 121-186
Abstract: Species of Pestalotiopsis occur commonly as plant pathogens, and represent a fungal group known to produce a wide range of chemically novel, diverse metabolites. In the present study, we investigated 91 Pestalotiopsis isolates from the CBS-KNAW Fungal Biodiversity Centre (CBS) culture collection. The phylogeny of the Amphisphaeriaceae was constructed based on analysis of 28S nrRNA gene (LSU) sequence data, and taxonomic changes are proposed to reflect more natural groupings. We combined morphological and DNA data, and segregated two novel genera from Pestalotiopsis, namely Neopestalotiopsis and Pseudopestalotiopsis. The three genera are easily distinguishable on the basis of their conidiogenous cells and colour of their median conidial cells. We coupled morphological and combined sequence data of internal transcribed spacer (ITS), partial ß-tubulin (TUB) and partial translation elongation factor 1-alpha (TEF) gene regions, which revealed 30 clades in Neopestalotiopsis and 43 clades in Pestalotiopsis. Based on these data, 11 new species are introduced in Neopestalotiopsis, 24 in Pestalotiopsis, and two in Pseudopestalotiopsis. Several new combinations are proposed to emend monophyly of Neopestalotiopsis, Pestalotiopsis and Pseudopestalotiopsis.
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(original language: English)
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Database assignments for author(s): Pedro W. Crous, Johannes Z. Groenewald

Research topic(s) for pests/diseases/weeds:
identification/taxonomy


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Pseudopestalotiopsis theae Tea (Camellia sinensis) Taiwan
Pseudopestalotiopsis theae Tea (Camellia sinensis) Thailand
Neopestalotiopsis samarangensis Eugenia/Syzygium (genera) Thailand
Neopestalotiopsis mesopotamica Pine (Pinus) Iraq