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The lichenicolous Phoma species on Cladonia are revised. A statistical analysis of the conidial size suggests that three species are involved: P. dadoniicola sp. nov. a common and widespread species in the Northern Hemisphere occu...
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The lichenicolous Phoma species on Cladonia are revised. A statistical analysis of the conidial size suggests that three species are involved: P. dadoniicola sp. nov. a common and widespread species in the Northern Hemisphere occurring on a wide rangeof Cladonia species; P. foliaceiphila sp. nov. known from C. foliacea and C. fimbriata in Europe; and P. grumantiana sp. nov. known from C. symphycarpia and C. mateocyatha in Svalbard and the USA.
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The fungal biodiversity in its overall is mostly still unknown and the ecological role of these organisms, particularly in some border ecosystems, is often underestimated. This study aims to give both an overview of the state of t...
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The fungal biodiversity in its overall is mostly still unknown and the ecological role of these organisms, particularly in some border ecosystems, is often underestimated. This study aims to give both an overview of the state of the art and to presentnew data on the mycodiversity in some peculiar environments as rocks, beach sand, and water in Italy. Particularly, rock fungi are here reported from high mountain peaks, sea cliffs, and monuments; sand associated fungi from beach ecosystems in Puglia and Ligurian coasts; marine fungi associated with the endemic seagrass of the Mediterranean Posidonia oceanica L.; aquatic hyphomycetes (Ingoldian fungi) from both streams in the Ticino Natural Park and lentic water in Lago Maggiore; fungi from the waterdistribution system in Turin. Ecological and evolutive considerations are put forward.
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Fungal communities on decaying culms of a bamboo host (Phyllostachys bambusoides) from freshwater and adjacent terrestrial habitats were identified. Collections were made at Xiao Bai Long Mountain, Yiliang, Yunnan, China in the wi...
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Fungal communities on decaying culms of a bamboo host (Phyllostachys bambusoides) from freshwater and adjacent terrestrial habitats were identified. Collections were made at Xiao Bai Long Mountain, Yiliang, Yunnan, China in the winter and summer. In each collection, 100 similar-sized bamboo culms were collected, comprising 50 submerged samples from a stream and 50 terrestrial samples from adjacent riparian vegetation. A total of 82 fungal taxa were recorded from the samples, including 30 ascomycetes and 52 anamorphic fungi. The frequency of occurrence of these fungi were recorded and the Shannon–Weiner indices (H′) were applied to evaluate fungal diversity. The results showed that variation of the fungal diversity between the summer and winter collections was insignificant (0.2收起
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Tuber mixtecorum is described as a new species from Mexico based on morphological and molecular evidence. This species belongs to the Maculatum clade and is characterized by its subtomentose to glabrous, whitish to pale brown peri...
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Tuber mixtecorum is described as a new species from Mexico based on morphological and molecular evidence. This species belongs to the Maculatum clade and is characterized by its subtomentose to glabrous, whitish to pale brown peridium, dark brown gleba, ellipsoid reticulate-alveolate ascospores (15-33.9 x 11.3-23.3 mu m), and the putative mycorrhizal association with Quercus castanea in Quercus-Pinus dry mixed forests.
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More than twenty species of lichenicolous fungi have been described in Phoma, a large anamorphic genus of primarily plant-associated pathogens with broad geographic distributions. We obtained nuclear and mitochondrial rDNA sequenc...
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More than twenty species of lichenicolous fungi have been described in Phoma, a large anamorphic genus of primarily plant-associated pathogens with broad geographic distributions. We obtained nuclear and mitochondrial rDNA sequences from 19 fungal cultures isolated from specimens representing four described and two undescribed lichenicolous species in the genus. Our multilocus phylogeny indicates that lichenicolous Phoma species represent at least two phylogenetically distinct clades in the Phaeosphaeriaceae, one including a new species, Phoma puncteliae, isolated from a specimen of Punctelia rudecta collected in Maryland, USA, and another group of primarily lichenicolous species. This latter group includes four described lichenicolous Phoma species, an unidentified melanized rock fungus, and a new lichenicolous Phoma species isolated from Xanthomendoza species collected in Canada that we are naming P. xanthomendozae. Some specimens in this clade collected from different lichen genera and species were found to be very similar genetically, which calls into question the recent practice of recognizing lichenicolous Phoma species mainly by differences in host preference.
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摘要 :
More than twenty species of lichenicolous fungi have been described in Phoma, a large anamorphic genus of primarily plant-associated pathogens with broad geographic distributions. We obtained nuclear and mitochondrial rDNA sequenc...
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More than twenty species of lichenicolous fungi have been described in Phoma, a large anamorphic genus of primarily plant-associated pathogens with broad geographic distributions. We obtained nuclear and mitochondrial rDNA sequences from 19 fungal cultures isolated from specimens representing four described and two undescribed lichenicolous species in the genus. Our multilocus phylogeny indicates that lichenicolous Phoma species represent at least two phylogenetically distinct clades in the Phaeosphaeriaceae, one including a new species, Phoma puncteliae, isolated from a specimen of Punctelia rudecta collected inMaryland, USA, and another group of primarily lichenicolous species. This latter group includes four described lichenicolous Phoma species, an unidentified melanized rock fungus, and a new lichenicolous Phoma species isolated from Xanthomendoza species collected in Canada that we are naming P. xanthomendozae. Some specimens in this clade collected from different lichen genera and species were found to be very similar genetically, which calls into question the recent practice of recognizing lichenicolous Phoma species mainly by differences in host preference.
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Morphological, anatomical, chemical and molecular data suggest that a relatively common lichenicolous coelomycete on Lecanora conizaeoides is conspecific with Phoma cytospora, previously known only from parmelioid lichens, and tha...
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Morphological, anatomical, chemical and molecular data suggest that a relatively common lichenicolous coelomycete on Lecanora conizaeoides is conspecific with Phoma cytospora, previously known only from parmelioid lichens, and that further populations on Cladonia and Pertusaria belong to the same species. This species is distinguished from Phoma by several taxonomically important characters and obviously represents a previously unrecognized genus, for which the name Briancoppinsia is introduced. Phylogenetic analyses using nuLSU and mtSSU sequences of isolates obtained in pure culture suggest that the new genus belongs to the Arthoniaceae (Arthoniales). This is the first obligate lichenicolous, non-lichenized anamorph confirmed to belong to the Arthoniales based on molecular data.
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Morphological, anatomical, chemical and molecular data suggest that a relatively common lichenicolous coelomycete on Lecanora conizaeoides is conspecific with Phoma cytospora, previously known only from parmelioid lichens, and tha...
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Morphological, anatomical, chemical and molecular data suggest that a relatively common lichenicolous coelomycete on Lecanora conizaeoides is conspecific with Phoma cytospora, previously known only from parmelioid lichens, and that further populations on Cladonia and Pertusaria belong to the same species. This species is distinguished from Phoma by several taxonomically important characters and obviously represents a previously unrecognized genus, for which the name Briancoppinsia is introduced. Phylogenetic analyses using nuLSU and mtSSU sequences of isolates obtained in pure culture suggest that the new genus belongs to the Arthoniaceae (Arthoniales). This is the first obligate lichenicolous, non-lichenized anamorph confirmed to belong to the Arthoniales based on molecular data.
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A new species, Pleurotheciella nilotica is described and illustrated from the River Nile, Sohag, Egypt. Molecular phylogenetic analyses of the combined SSU and LSU rDNA placed the new species within Pleurotheciella as a phylogenet...
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A new species, Pleurotheciella nilotica is described and illustrated from the River Nile, Sohag, Egypt. Molecular phylogenetic analyses of the combined SSU and LSU rDNA placed the new species within Pleurotheciella as a phylogenetically distinct species. P. nilotica formed a basal clade to a node containing P. krabiensis and P. tropica. The new species is characterized by its conidial dimensions being smaller than those recorded in the eleven described species of Pleurotheciella.
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A new aquatic hyphomycete, Phaeomonilia aquatica, is described and illustrated from specimens collected on submerged wood in Jiangxi Province, China. Phaeomonilia aquatica is morphologically characterized by conidiophores with per...
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A new aquatic hyphomycete, Phaeomonilia aquatica, is described and illustrated from specimens collected on submerged wood in Jiangxi Province, China. Phaeomonilia aquatica is morphologically characterized by conidiophores with percurrent proliferation and aseptate smooth conidia that are spherical, subtriangular, subglobose, ellipsoidal to subfusiform or obovate and formed in branched acropetal chains. A key to Phaeomonilia species is provided.
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