Trace elements and C and N isotope composition in two mushroom species from a mine-spill contaminated site

Abstract

fungi play a key role in the functioning of soil in terrestrial ecosystems, and in particular in the remediation of degraded soils. the contribution of fungi to carbon and nutrient cycles, along with their capability to mobilise soil trace elements, is well-known. However, the importance of life history strategy for these functions has not yet been thoroughly studied. this study explored the soil-fungi relationship of two wild edible fungi, the ectomycorrhizal Laccaria laccata and the saprotroph Volvopluteus gloiocephalus. fruiting bodies and surrounding soils in a mine-spill contaminated area were analysed. isotope analyses revealed Laccaria laccata fruiting bodies were 15 n-enriched when compared to Volvopluteus gloiocephalus, likely due to the transfer of 15 n-depleted compounds to their host plant. Moreover, Laccaria laccata fruiting bodies δ 13 c values were closer to host plant values than surrounding soil, while Volvopluteus gloiocephalus matched the δ 13 c composition to that of the soil. fungal species presented high bioaccumulation and concentrations of cd and cu in their fruiting bodies.

Checklist of Macrofungi Associated with Nine Different Habitats of Taburno-Camposauro Massif in Campania, Southern Italy

“…Particularly noteworthy, a high level of disturbance by boar activity and excessive grazing was observed in the grassland habitats of the massif, namely Piano Melaino, Piano Cepino (Taburno mount), and Piana of Camposauro (Camposauro mount). The consequent disruption of vegetation cover can produce unsuitable conditions for fungal growth, with the exception of perturbance-related taxa such as Volvopluteus gliochephalus (Pluteaceae), [41,42], recorded in grassland habitats of Taburno-Camposauro massif. The highest diversity of fungal taxa was observed in areas dominated by Fagaceae trees, with the sole exception of Q. pubescens.…”

Microbial community diversity and potential functionality in response to dam construction along the Three Gorge Reservoir, China

“…As a result of a genomic study, Acidobacteria can use a wide variety of carbohydrates, as well as both organic and inorganic nitrogen ( Eichorst et al, 2018 ). Organic matter decomposition and nutrient cycling were also carried out by actinobacteria ( Gil-Martinez et al, 2020 ). These samples contained 106,682 features belonging to the bacteria kingdom, including 95 phyla, 228 classes, 514 orders, 871 families, 1959 genera, and 3,053 species.…”

The mercury concentration in mushrooms (Leccinum scabrum and Amanita muscaria) collected in Poland

“…Grzyby rosnące na terenach zanieczyszczonych charakteryzują się dużą kumulacją metali ciężkich, takich jak rtęć czy ołów, w owocnikach. Na tych terenach może dochodzić do ograniczenia liczby owocników lub całkowitego zaniku bardziej wrażliwych gatunków [19]. Poszczególne gatunki mogą się także różnić zawartością metali, co jest spowodowane różnicami genetycznymi danych grzybów [20].…”