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| Li, H.Y.; Sun, G.Y.; Zhai, X.R.; Batzer, J.C.; Mayfield, D.A.; Crous, P.W.; Groenewald, J.Z.; Gleason, M.L.. |
| Zasmidium angulare, a novel species of Mycosphaerellaceae, and several novel taxa that reside in Dissoconiaceae, were identified from a collection of apples and Cucurbita maxima (cv. Blue Hubbard) from China and the USA that exhibited sooty blotch and flyspeck (SBFS) signs on their host substrata. Morphology on fruit surfaces and in culture, and phylogenetic analyses of the nuclear ribosomal DNAs 28S and internal transcribed spacer regions, as well as partial translation elongation factor 1-alpha gene sequences in some cases, were used to delineate seven previously unidentified species and three known species. Pseudoveronaea was established as a new genus of Dissoconiaceae, represented by two species, P. ellipsoidea and P. obclavata. Although... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Hyphomycetes; Malus; Microfungi; SBFS; Taxonomy. |
| Ano: 2012 |
URL: http://www.repository.naturalis.nl/record/532388 |
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| Yang, H.L.; Sun, G.Y.; Batzer, J.C.; Crous, P.W.; Groenewald, J.Z.; Gleason, M.L.. |
| Fungi in the sooty blotch and flyspeck (SBFS) complex cause blemishes on apple and pear fruit that result in economic losses for growers. The SBFS fungi colonise the epicuticular wax layer of pomaceous fruit but do not invade the cuticle. Fungi causing fuliginous and punctate mycelial types on apple are particularly difficult to identify based on morphological criteria because many species in the SBFS complex share the same mycelial phenotypes. We compared the morphology and nuclear ribosomal DNA phylogeny (ITS, LSU) of 11 fungal strains isolated from SBFS blemishes on apple obtained from two provinces in China and five states in the USA. Parsimony analysis, supported by cultural characteristics and morphology in vitro, provided support to delimit the... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Anamorph; SBFS; Taxonomy. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/532099 |
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| Frank, J.; Crous, P.W.; Groenewald, J.Z.; Oertel, B.; Hyde, K.D.; Phengsintham, P.; Schroers, H.-J.. |
| Recent studies have found a wide range of ascomycetes to be associated with sooty blotch and flyspeck (SBFS) blemishes on the surfaces of pomaceous fruits, specifically apples. Based on collections of such fungi from apple orchards in Germany and Slovenia we introduce two novel genera according to analyses of morphological characters and nuclear ribosomal DNA sequences (large subunit and internal transcribed spacer regions). Microcyclosporella is represented by a single species, M. mali, and is presently known from Germany and Slovenia. Microcyclosporella is Pseudocercosporella-like in morphology, but genetically and morphologically distinct from Pseudocercosporella s.str., for which an epitype is designated based on a fresh collection of P. bakeri from... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Devriesia; Hyphomycetes; Malus; Microfungi; Pseudocercospora; Pseudocercosporella; SBFS; Taxonomy. |
| Ano: 2010 |
URL: http://www.repository.naturalis.nl/record/532077 |
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