Author:
Chen Jianzhen,Mu Qilin,Tian Xiaohai
Abstract
Graphene significantly affects seeds germination and seedling growth of food plants. Phytotoxicity tests by seeds germination and seedling growth are important means to detect toxicity of graphene oxide. We in this study assessed the effect of graphene oxide on rice plants at low concentration.
Graphene oxide significantly inhibited water absorption during 3–6 h soaking, postponed seeds germination, but significantly decreased seeds germination rate under 10 μg/mL treatment. Graphene oxide showed most destructive effect on root than upper ground part, and severely
restrained root development and increased chlorophyll content. Moreover, graphene oxide enhanced superoxide dismutase, catalase and peroxidase activities, and the change could alleviate oxygen damage. All these results indicate graphene oxide has some concentration-dependent phytotoxicity
on seeds germination and seedling development, but also decreases damage by improving activities of antioxidant enzymes.
Publisher
American Scientific Publishers
Subject
General Materials Science
Cited by
7 articles.
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