Melatonin reduces nanoplastic uptake, translocation and toxicity in wheat
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Melatonin reduces nanoplastic uptake, translocation and toxicity in wheat. / Li, Shuxin; Guo, Junhong; Wang, Tianya; Gong, Lei; Liu, Fulai; Brestic, Marian; Liu, Shengqun; Song, Fengbin; Li, Xiangnan.
In: Journal of Pineal Research, Vol. 71, No. 3, e12761, 2021.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Melatonin reduces nanoplastic uptake, translocation and toxicity in wheat
AU - Li, Shuxin
AU - Guo, Junhong
AU - Wang, Tianya
AU - Gong, Lei
AU - Liu, Fulai
AU - Brestic, Marian
AU - Liu, Shengqun
AU - Song, Fengbin
AU - Li, Xiangnan
PY - 2021
Y1 - 2021
N2 - With increasing plastic production and consumption, large amounts of polystyrene nanoplastics are accumulated in soil due to improper disposal causing pollution and deleterious effects to environment. However, little information is available about how to alleviate the adverse impacts of nanoplastics on crops. In this study, the involvement of melatonin in modulating nanoplastic uptake, translocation and toxicity in wheat plant was investigated. The results demonstrated that exogenous melatonin application reduced the nanoplastic uptake by roots and their translocation to shoots via regulating the expression of genes associated with aquaporin, including the upregulation of the TIP2-9, PIP2, PIP3 and PIP1.2 in leaves and TIP2-9, PIP1-5, PIP2 and PIP1.2 in roots. Melatonin activated the ROS scavenging system to maintain a better redox homeostasis and ameliorated the negative effects of nanoplastics on carbohydrate metabolism, hence ameliorated the plant growth and enhanced the tolerance to nanoplastics toxicity. This process was closely related to the exogenous melatonin application induced melatonin accumulation in leave. These results suggest that melatonin could alleviate the adverse effects of nanoplastics on wheat, and exogenous melatonin application might be used as a promising management strategy to sustain crop production in the nanoplastic-polluted soils.
AB - With increasing plastic production and consumption, large amounts of polystyrene nanoplastics are accumulated in soil due to improper disposal causing pollution and deleterious effects to environment. However, little information is available about how to alleviate the adverse impacts of nanoplastics on crops. In this study, the involvement of melatonin in modulating nanoplastic uptake, translocation and toxicity in wheat plant was investigated. The results demonstrated that exogenous melatonin application reduced the nanoplastic uptake by roots and their translocation to shoots via regulating the expression of genes associated with aquaporin, including the upregulation of the TIP2-9, PIP2, PIP3 and PIP1.2 in leaves and TIP2-9, PIP1-5, PIP2 and PIP1.2 in roots. Melatonin activated the ROS scavenging system to maintain a better redox homeostasis and ameliorated the negative effects of nanoplastics on carbohydrate metabolism, hence ameliorated the plant growth and enhanced the tolerance to nanoplastics toxicity. This process was closely related to the exogenous melatonin application induced melatonin accumulation in leave. These results suggest that melatonin could alleviate the adverse effects of nanoplastics on wheat, and exogenous melatonin application might be used as a promising management strategy to sustain crop production in the nanoplastic-polluted soils.
KW - carbohydrate metabolism
KW - melatonin
KW - phytotoxicity
KW - polystyrene nanoplastics
KW - Triticum aestivum
KW - carbohydrate metabolism
KW - melatonin
KW - phytotoxicity
KW - polystyrene nanoplastics
KW - Triticum aestivum
U2 - 10.1111/jpi.12761
DO - 10.1111/jpi.12761
M3 - Journal article
C2 - 34392562
VL - 71
JO - Journal of Pineal Research (Print)
JF - Journal of Pineal Research (Print)
SN - 0742-3098
IS - 3
M1 - e12761
ER -
ID: 276163894