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How do the Growth and Metabolic Activity of Aquatic fungi Geotrichum Candidum and Aspergillus Niger Respond to Nanoplastics?

Authors :
Qv, Wenrui
Wang, Xilin
Li, Ningyun
Du, Jingjing
Pu, Gaozhong
Zhang, Hongzhong
Source :
Bulletin of Environmental Contamination & Toxicology; Dec2022, Vol. 109 Issue 6, p1043-1050, 8p
Publication Year :
2022

Abstract

In this study, exposure experiments were conducted to assess the effects of polystyrene nanoparticles (PS) and amine-modified polystyrene nanoparticles (APS) at environmental concentrations (1, 10, and 100 µg L<superscript>− 1</superscript>) on two fungal species (Geotrichum candidum and Aspergillus niger), isolated from leaf litter in streams, concerning their growth and metabolic activity. Results showed that PS at 1 and 10 µg L<superscript>− 1</superscript> have hormesis effects on G. candidum growth. Compared with G. candidum, A. niger had higher sensitivity to nanoplastic exposure. Besides, the peroxidase and cellobiohydrolase activities of A. niger were significantly inhibited by nanoplastics (except 1 µg L<superscript>− 1</superscript> PS), which would weaken its metabolic activity in carbon cycling. These results provided a new thought on how the growth and functions of aquatic fungi cope with the stress induced by nanoplastics. Overall, the study provided evidence for the different responses of aquatic fungi to nanoplastics in streams. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00074861
Volume :
109
Issue :
6
Database :
Complementary Index
Journal :
Bulletin of Environmental Contamination & Toxicology
Publication Type :
Academic Journal
Accession number :
160372085
Full Text :
https://doi.org/10.1007/s00128-022-03625-0