Molecular phylogeny of two coelomycetous fungal genera with stellate conidia,ProsthemiumandAsterosporium, on Fagales trees

Tanaka, Kazuaki; Мельник, В. А.; Kamiyama, Maasa; Hirayama, Kazuyuki; Shirouzu, Takashi

doi:10.1139/b10-078

Cited by 38 publications

(19 citation statements)

References 40 publications

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“…Morphological methods are described by Tanaka et al (2009, 2010). Monoconidial cultures were obtained according to the methods of Shearer et al (2004).…”

Section: Methodsmentioning

confidence: 99%

Phylogeny of Discosia and Seimatosporium, and introduction of Adisciso and Immersidiscosia genera nova

Tanaka¹,

Endo²,

Hirayama³

et al. 2011

Pers - Int Mycol J

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Discosia (teleomorph unknown) and Seimatosporium (teleomorph Discostroma) are saprobic or plant pathogenic, coelomycetous genera of so-called ‘pestalotioid fungi’ within the Amphisphaeriaceae (Xylariales). They share several morphological features and their generic circumscriptions appear unclear. We investigated the phylogenies of both genera on the basis of SSU, LSU and ITS nrDNA and β-tubulin gene sequences. Discosia was not monophyletic and was separated into two distinct lineages. Discosia eucalypti deviated from Discosia clade and was transferred to a new genus, Immersidiscosia, characterised by deeply immersed, pycnidioid conidiomata that are intraepidermal to subepidermal in origin, with a conidiomatal beak having periphyses. Subdividing Discosia into ‘sections’ was not considered phylogenetically significant at least for the three sections investigated (sect. Discosia, Laurina, and Strobilina). We recognised Seimatosporium s.l. as a monophyletic genus. An undescribed species belonging to Discosia with its associated teleomorph was collected on living leaves of Symplocos prunifolia from Yakushima Island, Japan. We have therefore established a new teleomorphic genus, Adisciso, for this new species, A. yakushimense. Discostroma tricellulare (anamorph: Seimatosporium azaleae), previously described from Rhododendron species, was transferred to Adisciso based on morphological and phylogenetic grounds. Adisciso is characterised by relatively small-sized ascomata without stromatic tissue, obclavate to broadly cylindrical asci with biseriate ascospores that have 2 transverse septa, and its Discosia anamorph. Based on these features, it can easily be distinguished from Discostroma, a similar genus within the Amphisphaeriaceae.

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“…Morphological methods are described by Tanaka et al (2009, 2010). Monoconidial cultures were obtained according to the methods of Shearer et al (2004).…”

Section: Methodsmentioning

confidence: 99%

Phylogeny of Discosia and Seimatosporium, and introduction of Adisciso and Immersidiscosia genera nova

Tanaka¹,

Endo²,

Hirayama³

et al. 2011

Pers - Int Mycol J

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“…A more recent phylogenetic analysis included a group of coelomycete species with stellate conidia, isolated from Fagales trees clustered in Melanommataceae (Tanaka et al 2010; Plate 1). …”

Section: Notesmentioning

confidence: 99%

Pleosporales

et al. 2011

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One hundred and five generic types of Pleosporales are described and illustrated. A brief introduction and detailed history with short notes on morphology, molecular phylogeny as well as a general conclusion of each genus are provided. For those genera where the type or a representative specimen is unavailable, a brief note is given. Altogether 174 genera of Pleosporales are treated. Phaeotrichaceae as well as Krie-geriella, Zeuctomorpha and Muroia are excluded from Pleosporales. Based on the multigene phylogenetic analysis, the suborder Massarineae is emended to accommodate five families, viz. Lentitheciaceae, Massarinaceae, Montagnulaceae, Morosphaeriaceae and Trematosphaeriaceae.

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“…Mugambi and Huhndorf (2009a) suggested that the GenBank sequences of L. macrostomum (DQ384094) may be based on a misidentification. Taxa in ''Lophiostoma clade II'' sensu Zhang et al (2009b) are currently accepted as Lophiostoma sensu stricto by several authors (Mugambi and Huhndorf 2009a;Schoch et al 2009;Suetrong et al 2009;Tanaka et al 2010b). In the other genus, Lophiotrema, all species used in our study formed a highly supported monophyly with the exception of Lophiostoma vitigenum, and this clade was distantly placed from the Lophiostoma within the Pleosporales (Fig.…”

Section: Monophylies Of Lophiostoma and Lophiotremamentioning

confidence: 99%

Taxonomic revision of Lophiostoma and Lophiotrema based on reevaluation of morphological characters and molecular analyses

Hirayama

Tanaka

2011

Mycoscience

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Lophiostoma and Lophiotrema share several morphological and ecological features. They have been regarded as closely related genera within the family Lophiostomataceae, but their morphological circumscriptions have been uncertain. To clarify the generic definitions of Lophiostoma and Lophiotrema, we conducted phylogenetic analyses of 29 isolates of these genera based on the SSU and LSU nrDNA sequences, and also reevaluated several key characters previously used for their generic characterization. Our results clearly confirmed that Lophiostoma and Lophiotrema are distinct genera belonging to different families; the ascus shape, including length of the ascus stipe, is a reliable taxonomic indicator to allow discrimination between the genera. In Lophiostoma species, asci are clavate with relatively long stipes [mostly (10-) 15-30 lm in length], whereas in Lophiotrema the asci are cylindrical with short stipes (up to 15 lm long). A new family, Lophiotremataceae, is proposed to accommodate species in the Lophiotrema clade that was distantly placed from the Lophiostomataceae within the Pleosporales. Lophiostoma quadrisporum, collected from twigs of Liriodendron tulipifera, is described as a new species with distinctive 4-spored asci. Lophiotrema vitigenum, which has clavate asci with long stipes, is transferred to Lophiostoma.

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Molecular phylogeny of two coelomycetous fungal genera with stellate conidia,ProsthemiumandAsterosporium, on Fagales trees

Cited by 38 publications

References 40 publications

Phylogeny of <I>Discosia</I> and <I>Seimatosporium</I>, and introduction of <I>Adisciso</I> and <I>Immersidiscosia</I> genera nova

Phylogeny of <I>Discosia</I> and <I>Seimatosporium</I>, and introduction of <I>Adisciso</I> and <I>Immersidiscosia</I> genera nova

Pleosporales

Taxonomic revision of Lophiostoma and Lophiotrema based on reevaluation of morphological characters and molecular analyses

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