Resurrection of Cortinarius coalescens: taxonomy, chemistry, and ecology

Borovička, Jan; Braeuer, Simone; Žigová, Anna; Gryndler, Milan; Dima, Bálint; Goessler, Walter; Frøslev, Tobias Guldberg; Kameník, Jan; Kärcher, Reinhold

doi:10.1007/s11557-017-1331-z

Cited by 7 publications

(2 citation statements)

References 36 publications

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“…Arsenic concentrations in soils found at all sites fall within the range of common arsenic concentrations (compare with Kabata-Pendias, 2011, chap. 20 and Borovička et al, 2017) and the accumulation of arsenic in C. pulverulentus thus represents a natural biological phenomenon not related to elevated arsenic content in the soil environment. The term ‘hyperaccumulator’ is used for species containing at least 100 times higher concentrations of a particular element than other species growing over underlying substrate of the same characteristics (Brooks, 1998).…”

Section: Discussionmentioning

confidence: 97%

Arsenic hyperaccumulation and speciation in the edible ink stain bolete (Cyanoboletus pulverulentus)

et al. 2018

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The edible ink stain bolete (Cyanoboletus pulverulentus) was found to hyperaccumulate arsenic. We analyzed 39 individual collections determined as C. pulverulentus, mostly from the Czech Republic. According to our results, concentrations of arsenic in C. pulverulentus fruit-bodies may reach 1300mgkg dry weight. In most collections, data for total and bioavailable arsenic in underlying soils were collected but no significant correlation between the soil arsenic content and arsenic concentrations in the associated fruit-bodies was found. Within the fruit-bodies, we found the majority of arsenic accumulated in the hymenium. Besides occasional traces of methylarsonic acid (MA), the arsenic speciation in all mushroom samples consisted solely of dimethylarsinic acid (DMA) and no inorganic arsenic was detected. Because of the carcinogenic potential of DMA, C. pulverulentus should not be recommended as an edible mushroom and its consumption should be restricted.

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Section: Discussionmentioning

confidence: 97%

Arsenic hyperaccumulation and speciation in the edible ink stain bolete (Cyanoboletus pulverulentus)

et al. 2018

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“…Ascomycota was represented by 451 ASVs, Basidiomycota by 258 ASVs and Chytridiomycota by 98 ASVs, which were classified depending on their function as pathogens, saprotrophs and mutualists or had an unknown function. Some were classified as ectomycorrhiza (mainly belonging to the genera Cortinarius which is found to be associated with deciduous trees) (Borovička et al, 2017) (Figure S2). The most abundant classes (with a total relative abundance higher than 1%), within each main phylum were the Ascomycota: Dothideomycetes, Leotiomycetes, Pezizomycetes and Sordariomycetes ; the Basidiomycota: Agaricomycetes and Tremellomycetes ; and the Chytridiomycota: Spizellomycetes (Figure S2).…”

Section: Resultsmentioning

confidence: 99%

Microplastic fibres affect soil fungal communities depending on drought conditions with consequences for ecosystem functions

Lozano,

Dueñas,

Zordick

et al. 2024

Environmental Microbiology

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Microplastics affect soil functions depending on drought conditions. However, how their combined effect influences soil fungi and their linkages with ecosystem functions is still unknown. To address this, we used rhizosphere soil from a previous experiment in which we employed microplastic fibres addition and drought in a factorial design, and evaluated their effects on soil fungal communities. Microplastics decreased soil fungal richness under well‐watered conditions, likely linked to microplastics leaching toxic substances into the soil, and microplastic effects on root fineness. Under drought, by contrast, microplastics increased pathogen and total fungal richness, likely related to microplastic positive effects on soil properties, such as water holding capacity, porosity or aggregation. Soil fungal richness was the attribute most affected by microplastics and drought. Microplastics altered the relationships between soil fungi and ecosystem functions to the point that many of them flipped from positive to negative or disappeared. The combined effect of microplastics and drought on fungal richness mitigated their individual negative effect (antagonism), suggesting that changes in soil water conditions may alter the action mode of microplastics in soil. Microplastic leaching of harmful substances can be mitigated under drought, while the improvement of soil properties by microplastics may alleviate such drought conditions.

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A unique arsenic speciation profile in Elaphomyces spp. (“deer truffles”)—trimethylarsine oxide and methylarsonous acid as significant arsenic compounds

2018

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Arsenic and its species were investigated for the first time in nine collections of Elaphomyces spp. (“deer truffles”) from the Czech Republic with inductively coupled plasma mass spectrometry (ICPMS) and high-performance liquid chromatography coupled to ICPMS. The total arsenic concentrations ranged from 12 to 42 mg kg−1 dry mass in samples of E. asperulus and from 120 to 660 mg kg−1 dry mass in E. granulatus and E. muricatus. These concentrations are remarkably high for terrestrial organisms and demonstrate the arsenic-accumulating ability of these fungi. The dominating arsenic species in all samples was methylarsonic acid which accounted for more than 30% of the extractable arsenic. Arsenobetaine, dimethylarsinic acid, and inorganic arsenic were present as well, but only at trace concentrations. Surprisingly, we found high amounts of trimethylarsine oxide in all samples (0.32–28% of the extractable arsenic). Even more remarkable was that all but two samples contained significant amounts of the highly toxic trivalent arsenic compound methylarsonous acid (0.08–0.73% of the extractable arsenic). This is the first report of the occurrence of trimethylarsine oxide and methylarsonous acid at significant concentrations in a terrestrial organism. Our findings point out that there is still a lot to be understood about the biotransformation pathways of arsenic in the terrestrial environment. Graphical abstractTrimethylarsine oxide and methylarsonous acid in “deer truffles” Electronic supplementary materialThe online version of this article (10.1007/s00216-018-0903-3) contains supplementary material, which is available to authorized users.

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Resurrection of Cortinarius coalescens: taxonomy, chemistry, and ecology

Cited by 7 publications

References 36 publications

Arsenic hyperaccumulation and speciation in the edible ink stain bolete (Cyanoboletus pulverulentus)

Arsenic hyperaccumulation and speciation in the edible ink stain bolete (Cyanoboletus pulverulentus)

Microplastic fibres affect soil fungal communities depending on drought conditions with consequences for ecosystem functions

A unique arsenic speciation profile in Elaphomyces spp. (“deer truffles”)—trimethylarsine oxide and methylarsonous acid as significant arsenic compounds

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