Junfeng Cao, Zhiwen Chen, Luyao Wang, Ning Yan, Jialing Lin, Lipan Hou, Yongyan Zhao, Chaochen Huang, Tingting Wen, Chenyi Li, Saeed Ur Rahman, Zehui Liu, Jun Qiao, Jianguo Zhao, Jie Wang, Yannan Shi, Wei Qin, Tong Si, Yuliang Wang, Kexuan Tang
Graphene was used to investigate its effects on the model herb, Artemisia annua, renowned for producing artemisinin, a widely-used pharmacological compound. The seedlings' growth and biomass were promoted when the A. annua was cultivated with low graphene concentrations, which was attributed to a 1.4-fold increase in nitrogen uptake, a 15% to 22% rise in chlorophyll fluorescence, and increased carbon cycling-related bacterial abundance. Moreover, exposure to 10 or 20 mg/L graphene resulted in an approximately 60% increase in H2 O2 , while graphene could act as a catalyst accelerator, leading to a 9-fold increase in catalase (CAT) activity in vitro, thereby maintaining reactive oxygen species (ROS) homeostasis...
November 1, 2023: Plant communications