loading page

Growth-promoting Effect of Graphene Oxide on Tissue Culture Seedlings of Poplar
  • +9
  • Runxuan Zhang,
  • Baoyan Xing,
  • Yayan Bao,
  • Haiyan Liu,
  • Jingting Huang,
  • Binlong Xue,
  • Jianfeng Li,
  • Wang Haiyan,
  • Jianzhong Yao,
  • Xinjun Zhou,
  • Christopher Oberc,
  • Paul Li
Runxuan Zhang
Shanxi Datong University
Author Profile
Baoyan Xing
Shanxi Datong University
Author Profile
Yayan Bao
Shanxi Datong University
Author Profile
Haiyan Liu
Shanxi Datong University
Author Profile
Jingting Huang
Shanxi Datong University
Author Profile
Binlong Xue
Shanxi Poplar High-yield Forest Bureau
Author Profile
Jianfeng Li
Shanxi Datong University
Author Profile
Wang Haiyan
Shanxi Datong University

Corresponding Author:[email protected]

Author Profile
Jianzhong Yao
Shanxi Poplar High-yield Forest Bureau
Author Profile
Xinjun Zhou
Shanxi Poplar High-yield Forest Bureau
Author Profile
Christopher Oberc
Simon Fraser University
Author Profile
Paul Li
Simon Fraser University
Author Profile

Abstract

Graphene oxide (GO) is a widely used nanomaterial, whose unique carbon-based structure bears abundant oxygen-containing functional groups. An increasing number of investigations have been performed on the effects of GO on plants due to its extensive use in various fields. In this work, under the optimized GO concentration (6 mg/L), we found that GO promoted the growth rate of the root of poplar. TEM images depicted that the plasmolysis and an increased number of starch grains were the two major physiological changes in the root cell samples. GO adhered to the cell membrane on the inner side of the cell wall and enhanced the toughness of the adventitious root. And the activity of oxidoreductases were measured and SOD, POD were found to increase significantly compared with the control group, but the increase of CAT was not obvious. Related gene expression was enhanced at low concentration of GO, but inhibited at high concentration. Our results indicate the possible usage of GO as enhancers in the growth of poplar tissue culture seedlings.