PMID- 32443862
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20200928
IS  - 2305-6304 (Electronic)
IS  - 2305-6304 (Linking)
VI  - 8
IP  - 2
DP  - 2020 May 20
TI  - Effects of Co-Contamination of Microplastics and Cd on Plant Growth and Cd 
      Accumulation.
LID - 10.3390/toxics8020036 [doi]
LID - 36
AB  - Microplastics (MPs) occur widely in terrestrial ecosystems. However, information 
      on the interaction of MPs with metals in terrestrial ecosystems is lacking in the 
      literature. The present study investigated the effects of two types of MPs 
      (high-density polyethylene (HDPE) and polystyrene (PS)) with different dosages 
      (i.e., 0, 0.1%, 1%, and 10%) on the uptake and effects of Cd in maize plants 
      grown in an agricultural soil. Results showed that addition of Cd at a 5 mg/kg 
      caused inhibited plant growth and resulted in high Cd accumulation in plant 
      tissues. Polyethylene alone showed no significant phytotoxic effects, but a 
      high-dose of HDPE (10%) amplified Cd phytotoxicity. Polystyrene negatively 
      affected maize growth and phytoxicity further increased in the presence of Cd. 
      Both HDPE and PS caused soil diethylenetriaminepentaacetic acid 
      (DTPA)-extractable Cd concentrations to increase but did not significantly affect 
      Cd uptake into plant tissues. In the soil without Cd addition, HDPE decreased 
      soil pH, while PS did not significantly alter soil pH. However, in the soil 
      spiked with Cd, both HDPE and PS increased pH. Overall, impacts on plant growth 
      and Cd accumulation varied with MP type and dose, and PS induced substantial 
      phytotoxicity. In conclusion, co-occurring MPs can change Cd bioavailability, 
      plant performance, and soil traits. Our findings highlight the ecological impacts 
      that could occur from the release of MPs into soil.
FAU - Wang, Fayuan
AU  - Wang F
AUID- ORCID: 0000-0003-1345-256X
AD  - College of Environment and Safety Engineering, Qingdao University of Science and 
      Technology, Qingdao 266042, China.
FAU - Zhang, Xiaoqing
AU  - Zhang X
AD  - College of Environment and Safety Engineering, Qingdao University of Science and 
      Technology, Qingdao 266042, China.
FAU - Zhang, Shuqi
AU  - Zhang S
AD  - College of Environment and Safety Engineering, Qingdao University of Science and 
      Technology, Qingdao 266042, China.
FAU - Zhang, Shuwu
AU  - Zhang S
AD  - College of Environment and Safety Engineering, Qingdao University of Science and 
      Technology, Qingdao 266042, China.
AD  - Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of 
      Environmental Science and Engineering, Shandong University, Qingdao 266237, 
      China.
FAU - Adams, Catharine A
AU  - Adams CA
AD  - Department of Plant and Microbial Biology, University of California Berkeley, 
      Berkeley, CA 94704, USA.
FAU - Sun, Yuhuan
AU  - Sun Y
AD  - College of Environment and Safety Engineering, Qingdao University of Science and 
      Technology, Qingdao 266042, China.
LA  - eng
GR  - 2019GSF109008/Shandong Provincial Key Research and Development Program/
GR  - 2020/Qingdao Special Funds for the Science and Technology Program of Public 
      Wellbeing/
GR  - 2019KF15/Shandong Key Laboratory of Water Pollution Control and Resource Reuse/
GR  - 0100229003/the Doctoral Foundation of QUST/
PT  - Journal Article
DEP - 20200520
PL  - Switzerland
TA  - Toxics
JT  - Toxics
JID - 101639637
PMC - PMC7356726
OTO - NOTNLM
OT  - cadmium
OT  - environmental risk
OT  - heavy metals
OT  - phytoavailability
OT  - soil contamination
COIS- The authors declare no competing interests. The funders had no role in the design 
      of the study; in the collection, analyses, or interpretation of data; in the 
      writing of the manuscript, or in the decision to publish the results.
EDAT- 2020/05/24 06:00
MHDA- 2020/05/24 06:01
PMCR- 2020/05/20
CRDT- 2020/05/24 06:00
PHST- 2020/03/12 00:00 [received]
PHST- 2020/04/02 00:00 [revised]
PHST- 2020/05/20 00:00 [accepted]
PHST- 2020/05/24 06:00 [entrez]
PHST- 2020/05/24 06:00 [pubmed]
PHST- 2020/05/24 06:01 [medline]
PHST- 2020/05/20 00:00 [pmc-release]
AID - toxics8020036 [pii]
AID - toxics-08-00036 [pii]
AID - 10.3390/toxics8020036 [doi]
PST - epublish
SO  - Toxics. 2020 May 20;8(2):36. doi: 10.3390/toxics8020036.