Redefining common endophytes and plant pathogens in Neofabraea, Pezicula, and related genera

Species in Neofabraea, Pezicula, and related genera have been reported as saprobes, plant pathogens or endophytes from a wide range of hosts. The asexual morphs of Neofabraea and Pezicula had been placed in Cryptosporiopsis, now a synonym of Pezicula, while Neofabraea was also linked to Phlyctema. B...

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Bibliographic Details
Published in:Fungal biology 2016-11, Vol.120 (11), p.1291-1322
Main Authors: Chen, Chen, Verkley, Gerard J.M., Sun, Guangyu, Groenewald, Johannes Z., Crous, Pedro W.
Format: Article
Language:English
Subjects:
Ascomycota - classification
Ascomycota - genetics
Ascomycota - isolation & purification
Ascomycota - physiology
Bull's eye rot
Dermateaceae
Endophytes - classification
Endophytes - genetics
Endophytes - isolation & purification
Endophytes - physiology
Fungal Proteins - genetics
Helotiales
Multi-gene phylogeny
Phylogeny
Plant Diseases - microbiology
Plants - microbiology
Systematics
Tubulin - genetics
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Summary:Species in Neofabraea, Pezicula, and related genera have been reported as saprobes, plant pathogens or endophytes from a wide range of hosts. The asexual morphs of Neofabraea and Pezicula had been placed in Cryptosporiopsis, now a synonym of Pezicula, while Neofabraea was also linked to Phlyctema. Based on morphology and molecular data of the partial large subunit nrDNA (LSU), the internal transcribed spacer region with intervening 5.8S nrDNA (ITS), partial β-tubulin region (tub2), and the partial RNA polymerase II second largest subunit region (rpb2), the taxonomy and phylogenetic relationships of these fungi were investigated. Five new species were described in Pezicula based on morphology, while a further eight unnamed phylogenetic lineages revealed further diversity in the genus. Based on these results, the generic concept of Neofabraea was also emended. Phlyctema, which was previously associated with Neofabraea, formed a distinct clade, separate from Neofabraea s. str. Two new neofabraea-like genera, Parafabraea and Pseudofabraea were proposed, along with one new combination in Neofabraea s. str. To stabilise the application of these names, an epitype was designated for Pe. carpinea, the type species of Pezicula, and for N. malicorticis, the type species of Neofabraea.
ISSN:1878-6146
1878-6162
DOI:10.1016/j.funbio.2015.09.013