Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 546084
Title Families and genera of diaporthalean fungi associated with canker and dieback of tree hosts
Author(s) Fan, X.L.; Bezerra, J.D.P.; Tian, Cheng Ming; Crous, P.W.
Source Persoonia 40 (2018)June. - ISSN 0031-5850 - p. 119 - 134.
DOI https://doi.org/10.3767/persoonia.2018.40.05
Department(s) Laboratory of Phytopathology
Publication type Refereed Article in a scientific journal
Publication year 2018
Keyword(s) Ascomycota - Phylogeny - Sordariomycetes - Taxonomy
Abstract

In this study we accept 25 families in Diaporthales based on phylogenetic analyses using partial ITS, LSU, rpb2 and tef1-α gene sequences. Four different families associated with canker and dieback of tree hosts are morphologically treated and phylogenetically compared. These include three new families (Diaporthostomata-ceae, Pseudomelanconidaceae, Synnemasporellaceae), and one new genus, Dendrostoma (Erythrogloeaceae). Dendrostoma is newly described from Malus spectabilis, Osmanthus fragrans and Quercus acutissima having fusoid to cylindrical, bicellular ascospores, with three new species namely D. mali, D. osmanthi and D. quercinum. Diaporthostomataceae is characterised by conical and discrete perithecia with bicellular, fusoid ascospores on branches of Machilus leptophylla. Pseudomelanconidaceae is defined by conidiogenous cells with apical collarets and discreet annellations, and the inconspicuous hyaline conidial sheath when mature on Carya cathayensis, compared to morphologically similar families Melanconidaceae and Juglanconidaceae. Synnemasporellaceae is proposed to accommodate fungi with synnematous conidiomata, with descriptions of S. toxicodendri on Toxico-dendron sylvestre and S. aculeans on Rhus copallina.

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