| 1. |
- Eliseo, Battistin, et al.
(författare)
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Morphological characterisation and phylogenetic placement of the very rare species Psathyrella sulcatotuberculosa
- 2014
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Ingår i: Sydowia. - 0082-0598. ; 66:2, s. 171-181
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Tidskriftsartikel (refereegranskat)abstract
- A recent find of the very rare species Psathyrella sulcatotuberculosa (Psathyrellaceae) from Italy provided the authors with new data useful for improving the knowledge of an almost mysterious entity. Of this collection, a detailed morphological description, a statistical analysis of the spore size along with several photographs of the basidiomata in field and microscopical structures are provided and compared with the features of the type collection. Morphologically and/or molecularly allied species are discussed. Phylogenetic analysis of Psathyrellaceae based on sequence data from the nuclear ribosomal DNA internal transcribed region and partial large subunit placed P. sulcatotuberculosa in the P. candolleana clade with strong statistical support, together with P. candolleana, P. badiophylla, P. leucotephra and P. typhae. The result is also supported by morphology, where the species in the clade all lack pleurocystidia but have clavate, utriform and lageniform cheilocystidia with a rounded apex.
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| 2. |
- Orgiazzi, Alberto, et al.
(författare)
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Unravelling soil fungal communities from different Mediterranean land-use backgrounds
- 2012
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Ingår i: PLoS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 7:4
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Tidskriftsartikel (refereegranskat)abstract
- Fungi strongly influence ecosystem structure and functioning, playing a key role in many ecological services as decomposers, plant mutualists and pathogens. The Mediterranean area is a biodiversity hotspot that is increasingly threatened by intense land use. Therefore, to achieve a balance between conservation and human development, a better understanding of the impact of land use on the underlying fungal communities is needed. We used parallel pyrosequencing of the nuclear ribosomal ITS regions to characterize the fungal communities in five soils subjected to different anthropogenic impact in a typical Mediterranean landscape: a natural cork-oak forest, a pasture, a managed meadow, and two vineyards. Marked differences in the distribution of taxon assemblages among the different sites and communities were found. Data analyses consistently indicated a sharp distinction of the fungal community of the cork oak forest soil from those described in the other soils. Each soil showed features of the fungal assemblages retrieved which can be easily related to the above-ground settings: ectomycorrhizal phylotypes were numerous in natural sites covered by trees, but were nearly completely missing from the anthropogenic and grass-covered sites; similarly, coprophilous fungi were common in grazed sites. Data suggest that investigation on the below-ground fungal community may provide useful elements on the above-ground features such as vegetation coverage and agronomic procedures, allowing to assess the cost of anthropogenic land use to hidden diversity in soil. Datasets provided in this study may contribute to future searches for fungal bio-indicators as biodiversity markers of a specific site or a land-use degree.
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| 3. |
- Vizzini, Alfredo, et al.
(författare)
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Typification of Octaviania rubescens (Paxillineae, Boletales) and phylogenetic hypotheses for genus Alpova
- 2010
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Ingår i: Mycologia. - : Informa UK Limited. - 0027-5514 .- 1557-2536. ; 102:4, s. 967-975
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Tidskriftsartikel (refereegranskat)abstract
- There are no usable herbarium specimens for the type of Alpova rubescens; therefore a lectotype and an epitype are designated hereby to preserve current usage of the name. As lecotype the Vittadini's Fig. XII E/Tab. IV (from Monographia Tubercearum) was selected. The epitype chosen for A. rubescens is a recent. large collection from Liguria (Italy). Furthermore to investigate the phylogenetic position of A. rabescens among Alpova spp. comparative 28S-rDNA gene sequence analyses were conducted. The new combination Rhizopogon atexsmithii (Trappe) Vizzini & Zotti is proposed.
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