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1.
Co-invasion of ectomycorrhizal fungi in the Brazilian Pampa biome
Marcelo Aloisio Sulzbacher, Tine Grebenc, Caroline B. Bevilacqua, Ricardo Bemfica Steffen, Gilberto Coelho, Andressa O. Silveira, Rodrigo J. S. Jacques, Zaida Ines Antoniolli, 2018

Povzetek: The introduction of ectomycorrhizal fungi along with the introduced ectomycorrhizal plants is rarely considered at the ecosystem level. In Brazil, the Pampa biome is the dominant ecosystem in the Rio Grande do Sul State, predominantly with pastoral management but intensively planted with non-native trees over the last century. Sporocarps of ectomycorrhizal and putative ectomycorrhizal fungi were collected in Pampa biome native forest vegetation and plantation forests during the period 2009%2013, with an emphasis on plantations of eucalypts and pines. Morphological analysis and molecular markers were used to identify collected sporocarps. A total of 60 different taxa were collected, mainly fitting into Australasian ectomycorrhizal fungi lineages. Among collections, two turned out to be saprotrophic species from Amanita belonging to the subsect. Vittadiniae. The ectomycorrhizal fungi reported here showed that some co-introduced lineages are frequent co-invaders in the Brazilian Pampa biome with alien ectomycorrhizal trees, especially /descolea, /hysterangium, /laccaria, /pisolithus-scleroderma lineages. No ectomycorrhizal sporocarps were found in either plantation forest or in native forest sites and no novel associations were observed between native ectomycorrhizal fungal species and introduced plants. All ectomycorrhizal fungi co-introduced in the Brazilian Pampa were recorded with plant species of Australian or North American origin. The study has raised additional questions regarding the distribution, ecology and taxonomy of fungi from the Brazilian Pampa biome.
Ključne besede: ectomycorrhiza, invasive species, fungi, forest tree plantations
DiRROS - Objavljeno: 20.02.2020; Ogledov: 198; Prenosov: 90
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2.
Diversity trapped in cages : revision of Blumenavia Möller (Clathraceae, Basidiomycota) reveals three hidden species
I. G. Baseia, María P. Martín, Tine Grebenc, Vagner G. Cortez, Marcelo Aloisio Sulzbacher, Gilberto Coelho, Tiara S. Cabral, Ana C. M. Rodrigues, Renato J. Ferreira, Gislaine C. S. Melanda, 2020

Povzetek: Basidiomata of Phallales have a diversified morphology with adhesive gleba that exudes an odor, usually unpleasant that attracts mainly insects, which disperse the basidiospores. The genus Blumenavia belongs to the family Clathraceae and, based on morphological features, only two species are currently recognized: B. rhacodes and B. angolensis. However, the morphological characters adopted in species delimitations within this genus are inconsistent, and molecular data are scarce. The present study aimed to review and identify informative characters that contribute to the delimitation of Blumenavia species. Exsiccates from America and Africa were analyzed morphologically, and molecularly, using ITS, LSU, ATP6, RPB2 and TEF-1% markers for Maximum Parsimony, Bayesian and Maximum likelihood analyses, and also for coalescent based species delimitations (BP&P), as well as for bPTP, PhyloMap, Topo-phylogenetic and Geophylogenetic reconstructions. According to our studies, seven species can be considered in the genus: B. rhacodes and B. angolensis are maintained, B. usambarensis and B. toribiotalpaensis are reassessed, and three new species are proposed, B. baturitensis Melanda, M.P. Martín & Baseia, sp. nov., B. crucis-hellenicae G. Coelho, Sulzbacher, Grebenc & Cortez, sp. nov., and B. heroica Melanda, Baseia & M.P. Martín, sp. nov. Blumenavia rhacodes is typified by selecting a lectotype and an epitype. Macromorphological characters considered informative to segregate and delimit the species through integrative taxonomy include length of the basidiomata, color, width and presence of grooves on each arm as well as the glebifer position and shape. These must be clearly observed while the basidiomata are still fresh. Since most materials are usually analyzed after dehydration and deposit in collections, field techniques and protocols to describe fugacious characters from fresh specimen are demanded, as well as the use of molecular analysis, in order to better assess recognition and delimitation of species in Blumenavia.
DiRROS - Objavljeno: 27.05.2020; Ogledov: 79; Prenosov: 64
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