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The unicellular fungal tool RhoTox for risk assessments in groundwater systems.

Abstract：

:The recent inclusion of yeasts in environmental monitoring recognizes their ecological significance and sensitivity to toxicants. Here we present a robust and simple two-step toxicity assay and demonstrate the sensitivity of an ubiquitous groundwater yeast, Rhodotorula minuta, to a range of metals and metalloids. The test species was sensitive to copper with a 24h EC50 of 35µg Cu/L, followed in order of decreasing sensitivity by zinc, chromium (VI) and arsenic (EC50 4.40mg As (III)/L). The strain demonstrated an unexpected tolerance to chromium (VI), having an EC50 value (3.45mg Cr (VI)/L) similar to that of arsenic. The inclusion of a unicellular, microbial test-species into the suite of existing multicellular test species for toxicity evaluation is a key step towards strengthening the assessment of risk for groundwater ecosystems.

journal_name

Ecotoxicol Environ Saf

journal_title

Ecotoxicology and environmental safety

authors

Lategan MJ,Klare W,Kidd S,Hose GC,Nevalainen H

doi

10.1016/j.ecoenv.2016.05.019

subject

Has Abstract

pub_date

2016-10-01 00:00:00

pages

18-25

eissn

0147-6513

issn

1090-2414

pii

S0147-6513(16)30181-6

journal_volume

132

pub_type

杂志文章

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