title: Graphene oxide modulates root growth of Brassica napus L. and regulates ABA and IAA concentration.
abstract: Researchers have proven that nanomaterials have a significant effect on plant growth and development. To better understand the effects of nanomaterials on plants, Zhongshuang 11 was treated with different concentrations of graphene oxide. The results indicated that 25-100mg/l graphene oxide treatment resulted in shorter seminal root length compared with the control samples. The fresh root weight decreased when treated with 50-100mg/l graphene oxide. The graphene oxide treatment had no significant effect on the Malondialdehyde (MDA) content. Treatment with 50mg/l graphene oxide increased the transcript abundance of genes involved in ABA biosynthesis (NCED, AAO, and ZEP) and some genes involved in IAA biosynthesis (ARF2, ARF8, IAA2, and IAA3), but inhibited the transcript levels of IAA4 and IAA7. The graphene oxide treatment also resulted in a higher ABA content, but a lower IAA content compared with the control samples. The results indicated that graphene oxide modulated the root growth of Brassica napus L. and affected ABA and IAA biosynthesis and concentration.
authors.affiliation: College of Life Science, Yangtze University, Jingzhou 434025, China.
authors.forename: Fan
authors.initials: F
authors.lastname: Cheng
authors.affiliation: College of Life Science, Yangtze University, Jingzhou 434025, China.
authors.forename: Yu-Feng
authors.initials: YF
authors.lastname: Liu
authors.affiliation: Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
authors.forename: Guang-Yuan
authors.initials: GY
authors.lastname: Lu
authors.affiliation: Oil Crops Research Institute of the Chinese Academy of Agricultural Sciences/Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China.
authors.forename: Xue-Kun
authors.initials: XK
authors.lastname: Zhang
authors.affiliation: College of Life Science, Yangtze University, Jingzhou 434025, China.
authors.forename: Ling-Li
authors.initials: LL
authors.lastname: Xie
authors.affiliation: College of Life Science, Yangtze University, Jingzhou 434025, China.
authors.forename: Cheng-Fei
authors.initials: CF
authors.lastname: Yuan
authors.affiliation: College of Life Science, Yangtze University, Jingzhou 434025, China. Electronic address: benboxu@yangtzeu.edu.cn.
authors.forename: Ben-Bo
authors.initials: BB
authors.lastname: Xu
mesh_terms: D000040:Abscisic Acid / Q000378:metabolism; D029688:Brassica napus / Q000187:drug effects* / Q000254:growth & development / Q000502:physiology; D018506:Gene Expression Regulation, Plant / Q000187:drug effects*; D006108:Graphite / Q000494:pharmacology*; D007210:Indoleacetic Acids / Q000378:metabolism; D010087:Oxides / Q000494:pharmacology; D010937:Plant Growth Regulators / Q000378:metabolism*; D018517:Plant Roots / Q000187:drug effects* / Q000254:growth & development / Q000502:physiology
chemical_list: D007210:Indoleacetic Acids; D010087:Oxides; D010937:Plant Growth Regulators; D000040:Abscisic Acid; D006108:Graphite
keywords: ABA; Graphene oxide; IAA; Root growth; Transcript abundance