您好，欢迎访问天津市农业科学院 机构知识库！
天津市农业科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Foliar cadmium uptake, transfer, and redistribution in Chili: A comparison of foliar and root uptake, metabolomic, and contribution

文献类型： 外文期刊

作者： Ouyang, Xiaoxue 1 ; Ma, Jie 1 ; Liu, Yong 1 ; Li, Pan 4 ; Wei, Rongfei 5 ; Chen, Qiusheng 3 ; Weng, Liping 2 ; Chen, Yali 1 ; Li, Yongtao 7 ;

作者机构： 1.Minist Agr & Rural Affairs, Key Lab Environm Factors Control Agroprod Qual Saf, Tianjin 300191, Peoples R China

2.Minist Agr & Rural Affairs, Agroenvironm Protect Inst, Tianjin 300191, Peoples R China

3.Tianjin Acad Agr Sci, Inst Agr Prod Qual Safety & Nutr, Tianjin 300381, Peoples R China

4.Tianjin Univ, Sch Earth Syst Sci, Tianjin 300072, Peoples R China

5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China

6.Wageningen Univ, Dept Soil Qual, Wageningen, Netherlands

7.South China Agr Univ, Coll Nat Resources & Environm, Guangzhou 510642, Peoples R China

关键词： Cadmium; Uptake pathway; Phytotoxicity; Metabolomics; NanoSIMS; Cadmium isotope

期刊名称：JOURNAL OF HAZARDOUS MATERIALS （ 影响因子：13.6； 五年影响因子：12.7 ）

ISSN： 0304-3894

年卷期： 2023 年 453 卷

页码：

收录情况： SCI

摘要： Atmospheric deposition is an essential cadmium (Cd) pollution source in agricultural ecosystems, entering crops via roots and leaves. In this study, atmospherically deposited Cd was simulated using cadmium sulfide nano -particles (CdSN), and chili (Capsicum frutescens L.) was used to conduct a comparative foliar and root experiment. Root and foliar uptake significantly increased the Cd content of chili tissues as well as the subcellular Cd content. Scanning electron microscopy and high-resolution secondary ion mass spectrometry showed that Cd that entered the leaves via stomata was fixed in leaf cells, and the rest was mainly through phloem transport to the other organs. In leaf, stem, and root cell walls, Cd signal intensities were 47.4%, 72.2%, and 90.0%, respectively. Foliar Cd uptake significantly downregulated purine metabolism in leaves, whereas root Cd uptake inhibited stilbenoid, diarylheptanoid, and gingerol biosynthesis in roots. Root uptake contributed 90.4% Cd in fruits under simul-taneous root and foliar uptake conditions attributed to xylem and phloem involvement in Cd translocation. Moreover, root uptake had a more significant effect on fruit metabolic pathways than foliar uptake. These findings are critical for choosing pollution control technologies and ensuring food security.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：天津市农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台