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Nuevos reportes de especies de hifomicetos acuáticos en Venezuela . a. Dedrospora erecta, b: Dedrospora juncicola, c: Speiropsis hyalospora, d: Speiropsis pedatospora, e: Tetraploa cf aristata, f: Tripospermum myrti, g: Triscelophorus magnificus, h: Triscelophorus ponapensis . Escala: 10µm.
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Aquatic hyphomycetes are microscopic imperfect fungi and they are the principal decomposers of the submerged organic matter in rivers, making it easier for it to be used by other organisms. These fungi are important for the functioning of the environment and have biotechnological applications given their enzymatic makeup. They are considered as par...
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Keywords: Gonatophragmium mori ; Hyphomycetes; Ficus hispida L.; New record.
Bangladesh J. Plant Taxon. 24 (1): 125–127, 2017 (June)</p
Leaf and woody litter of two stations (discharge site and dam site) of the River Kali flowing adjacent to Kaiga nuclear power station of southwest India collected at bimonthly intervals up to one year were examined for aquatic hyphomycetes and lignicolous fungi. A total of 18 species of aquatic hyphomycetes was recovered from leaf litter by bubble...
Genus Dictyoarthrinium is reviewed. Dictyoarthrinium synnematicum, collected on decaying banana leaves in Thailand, is illustrated, described as a new species and compared with related taxa. The fungus differs from other Dictyoarthrinium species in having a synnematous structure. This species is the first synnematous record of an anamorphic fungus...
Helicosporous hyphomycetes are a morphologically fascinating group of Tubeufiales. Ten dematiaceous helicosporous asexual morphs and two sexual morphs collected from aquatic habitats are characterized in this study using morphological features and phylogenetic analyses. Four new species of Neoacanthostigma, viz. N. aquaticum, N. brunneisporum, N. g...
Abstract
The taxonomy of the aquatic hyphomycete genus Articulospora (Ascomycota, Pezizomycotima, Leotiales, Helotiaceae) is based on the morphology of the generative phase of its lifecycle. The type species is Articulospora tetracladia, which is distributed worldwide. Its most frequent populations in nature have dimorphic conidia, differing by the...
Citations
... More than 300 species of aquatic hyphomycetes have been reported in freshwater ecosystems (Wong et al., 1998;Shearer et al., 2007). However, despite their cosmopolitan distribution, temperate regions have the highest number of described species (Silva and Smits, 2011). In Brazil, 85 taxa have been recorded in the Atlantic Forest (53 taxa), Caatinga (39), Cerrado (21) and Amazon biome (19) (Fiuza et al., 2017). ...
Hyphomycetes are important aquatic organisms for organic matter decomposition, releasing inorganic nutrients to the environment. Understanding distribution patterns of hyphomycetes among different types of habitats can reveal important environmental characteristics that affect their assemblages and, as a consequence, can change stream functioning. We evaluated the effects of environmental predictors over hyphomycete assemblages in a field experiment in 12 subtropical Atlantic Forest streams. We identified 21 species of aquatic hyphomycetes, where Lunulospora curvula, Flagellospora curvula and Aquanectria submersa are dominant species, occurring in 10 streams, while Anguillospora sp., Campylospora parvula and Mycocentrospora acerina were found in only one stream. The variables dissolved oxygen, electrical conductivity and pH-influenced hyphomycete assemblages. Electrical conductivity acts as filter for spore output, while dissolved oxygen, electrical conductivity and phosphate are environmental filters for species richness. Our findings highlight the importance of environmental predictors over aquatic hyphomycete assemblages. The influence of environmental predictors over spore output and species richness may change stream functioning, since these organisms play an important role in leaf breakdown.
