Ti3C2Tx MXene nanosheets enhance the tolerance of Torreya grandis to Pb stress

Jingwei Yan; Na Kong; Qiumei Liu; Mengmeng Wang; Ke Lv; Hao Zeng; Weijie Chen; Jiali Luo; Heqiang Lou; Lili Song; Jiasheng Wu

doi:10.1016/j.jhazmat.2022.130647

Ti₃C₂Tx MXene nanosheets enhance the tolerance of Torreya grandis to Pb stress

J Hazard Mater. 2023 Mar 5:445:130647. doi: 10.1016/j.jhazmat.2022.130647. Epub 2022 Dec 21.

Authors

Jingwei Yan¹, Na Kong², Qiumei Liu³, Mengmeng Wang⁴, Ke Lv², Hao Zeng¹, Weijie Chen¹, Jiali Luo¹, Heqiang Lou⁵, Lili Song⁶, Jiasheng Wu⁷

Affiliations

¹ State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China.
² Agricultural Products Processing Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang 524001, China.
³ Guangxi Key Laboratory of Karst Ecological Processes and Services, Huanjiang Observation and Research Station for Karst Ecosystems, Chinese Academy of Sciences, Huanjiang 547100, China; Key Laboratory of Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China.
⁴ Nanjing Institute of Environmental Science, Ministry of Ecology and Environment of the People's Republic of China, Nanjing 210042, China.
⁵ State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China. Electronic address: 20170030@zafu.edu.cn.
⁶ State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China. Electronic address: lilisong@zafu.edu.cn.
⁷ State Key Laboratory of Subtropical Silviculture, Zhejiang A&F University, Hangzhou, Zhejiang 311300, China. Electronic address: wujs@zafu.edu.cn.

PMID: 37056011
DOI: 10.1016/j.jhazmat.2022.130647

Abstract

As a 2D nanomaterial, MXene (Ti₃C₂T_x) has shown enormous potential for use in fields such as biomedical and environmental pollution. However, the utilization of MXene materials in plants has received little attention thus far. The efficient use of MXene materials in agriculture and forestry is first highlighted in this study. Phenotypic and physiological analyses indicated that MXene application significantly enhanced the tolerance of Torreya grandis to Pb stress by reducing Pb accumulation. Furthermore, we illustrated two independent mechanisms of MXene material in reducing Pb accumulation in T. grandis: 1) MXene converted the available form of Pb into stable forms via its strong Pb adsorption ability, resulting in a decrease of the available form of Pb in soils, and 2) MXene application obviously increased the cell wall pectin content to restrict more Pb in the cell wall by regulating the expression of pectin synthesis/metabolism-related genes (TgPLL2, TgPLL11, TgPG5, TgPG30, TgGAUT3 and TgGAUT12) in T. grandis roots. Overall, this finding provides insight into the application of MXene material in modern agriculture and forestry, which will facilitate the rapid development of nanotechnology in sustainable agriculture and forestry.

Keywords: MXene; Nanomaterials; Pb; Pectin; Torreya grandis.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Lead* / toxicity
Pectins
Taxaceae*
Titanium

Substances

MXene
Lead
Titanium
Pectins