PMID- 33075615 OWN - NLM STAT- MEDLINE DCOM- 20201204 LR - 20201214 IS - 1879-1514 (Electronic) IS - 0166-445X (Linking) VI - 229 DP - 2020 Dec TI - Enhanced Cd accumulation by Graphene oxide (GO) under Cd stress in duckweed. PG - 105579 LID - S0166-445X(20)30329-5 [pii] LID - 10.1016/j.aquatox.2020.105579 [doi] AB - Effective phytoremediation by aquatic plant such as duckweed could be applied to solve Cd pollution. In the present study, the impact of Graphene oxide (GO) on the accumulation of Cd in duckweed has been studied. The response of duckweed was also investigated, concluding growth, Cd(2+) flux, and gene expression response. Results showed that GO promoted the accumulation of Cd in duckweed. After 6 h of Cd enrichment in duckweed, Cd content was about 1.4 times that of the control group at fronds and 1.25 times that of the control group at roots, meanwhile, Cd content in the water system was 0.67 times that of the control group. The Cd(2+) influx increased significantly. 4471 genes were up-regulated and 3230 genes were down-regulated significantly as duckweed treated with GO under Cd treatment. Moreover, phagosome pathway was downregulated, some key proteins: Stx7, Rab7 and Tubastatin B (TUBB) were significantly downregulated with GO addition under Cd stress. Scanning electron microscope (SEM) observation showed that GO and Cd were attached on the cell surface of duckweed as white crystal. GO could be applied in phytoremediation by duckweed of Cd in aquatic system. CI - Copyright (c) 2020. Published by Elsevier B.V. FAU - Yang, Lin AU - Yang L AD - Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China. Electronic address: 87834973@qq.com. FAU - Chen, Yikai AU - Chen Y AD - Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China. FAU - Shi, Leqian AU - Shi L AD - Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China. FAU - Yu, Jie AU - Yu J AD - Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China. FAU - Yao, Jie AU - Yao J AD - Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China. FAU - Sun, Jinge AU - Sun J AD - Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China. FAU - Zhao, Ling AU - Zhao L AD - College of Life Sciences, Department of Plant Biology and Ecology, Nankai University, 300071, Tianjin, China. FAU - Sun, Jinsheng AU - Sun J AD - Tianjin Key Laboratory of Animal and Plant Resistance, College of Life Sciences, Tianjin Normal University, 300387, Tianjin, China. Electronic address: skysjs@mail.tjnu.edu.cn. LA - eng PT - Journal Article DEP - 20200930 PL - Netherlands TA - Aquat Toxicol JT - Aquatic toxicology (Amsterdam, Netherlands) JID - 8500246 RN - 0 (Plant Proteins) RN - 0 (Water Pollutants, Chemical) RN - 0 (graphene oxide) RN - 00BH33GNGH (Cadmium) RN - 7782-42-5 (Graphite) SB - IM MH - Absorption, Physiological/drug effects MH - Araceae/drug effects/growth & development/*metabolism/ultrastructure MH - Autophagy/drug effects/genetics MH - Biodegradation, Environmental/drug effects MH - Cadmium/*metabolism MH - Cell Membrane Permeability/drug effects MH - Gene Expression Regulation, Plant/drug effects MH - Gene Ontology MH - Graphite/*toxicity MH - Phagosomes/drug effects/metabolism MH - Phenotype MH - Plant Proteins/genetics/metabolism MH - Plant Roots/drug effects/metabolism/ultrastructure MH - *Stress, Physiological/drug effects MH - Water Pollutants, Chemical/toxicity OTO - NOTNLM OT - Cadmium (Cd) OT - Cd(2+) influx OT - Graphene oxide (GO) OT - Lemna turionifera EDAT- 2020/10/20 06:00 MHDA- 2020/12/15 06:00 CRDT- 2020/10/19 20:11 PHST- 2020/03/09 00:00 [received] PHST- 2020/07/11 00:00 [revised] PHST- 2020/07/16 00:00 [accepted] PHST- 2020/10/20 06:00 [pubmed] PHST- 2020/12/15 06:00 [medline] PHST- 2020/10/19 20:11 [entrez] AID - S0166-445X(20)30329-5 [pii] AID - 10.1016/j.aquatox.2020.105579 [doi] PST - ppublish SO - Aquat Toxicol. 2020 Dec;229:105579. doi: 10.1016/j.aquatox.2020.105579. Epub 2020 Sep 30.