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Author Pu, G.; Zeng, D.; Mo, L.; Liao, J.; Chen, X.; Qiu, S.; Lv, Y.
Title Artificial light at night alter the impact of arsenic on microbial decomposers and leaf litter decomposition in streams Type Journal Article
Year 2019 Publication (up) Ecotoxicology and Environmental Safety Abbreviated Journal Ecotoxicol Environ Saf
Volume in press Issue Pages 110014
Keywords Ecology; Microbes; Fungal communities and biodiversity; Illumina sequencing; Light pollution; Litter decomposition; Microbiological oxidation
Abstract Artificial light at night (ALAN, also known as light pollution) has been proved to be a contributor to environmental change and a biodiversity threat worldwide, yet little is known about its potential interaction with different metal pollutants, such as arsenic (As), one of the largest threats to aquatic ecosystems. To narrow this gap, an indoor microcosm study was performed using an ALAN simulation device to examine whether ALAN exposure altered the impact of arsenic on plant litter decomposition and its associated fungi. Results revealed that microbial decomposers involved in the conversion of As(III) to As(V), and ALAN exposure enhanced this effect; ALAN or arsenic only exposure altered fungal community composition and the correlations between fungi species, as well as stimulated or inhibited litter decomposition, respectively. The negative effects of arsenic on the decomposition of Pterocarya stenoptera leaf litter was alleviated by ALAN resulting in the enhanced photodegradation of leaf litter lignin and microbiological oxidation of As(III) to As(V), the increased microbial biomass and CBH activity, as well as the enhanced correlations between CBH and litter decomposition rate. Overall, results expand our understanding of ALAN on environment and highlight the contribution of ALAN to the toxicity of arsenic in aquatic ecosystems.
Address School of Pharmacy and Biological Sciences, Weifang Medical University, Weifang, 261053, China. Electronic address: njandgl@163.com
Corporate Author Thesis
Publisher Place of Publication Editor
Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0147-6513 ISBN Medium
Area Expedition Conference
Notes PMID:31810590 Approved no
Call Number GFZ @ kyba @ Serial 2777
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