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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F18%3A00488752" target="_blank" >RIV/61389005:_____/18:00488752 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985831:_____/18:00503074

Výsledek na webu

<a href="http://dx.doi.org/10.1007/s00216-018-0903-3" target="_blank" >http://dx.doi.org/10.1007/s00216-018-0903-3</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00216-018-0903-3" target="_blank" >10.1007/s00216-018-0903-3</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Analytical and Bioanalytical Chemistry

ISSN

1618-2642

e-ISSN

—

Svazek periodika

410

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

2283-2290

Kód UT WoS článku

000427465400004

EID výsledku v databázi Scopus

2-s2.0-85041898307