Zhang Xiao, Cao Huifen, Wang Haiyan, Zhao Jianguo, Gao Kun, Qiao Jun, Li Jingwei, Ge Sai
Key Laboratory of National Forest and Grass Administration for the Application of Graphene in Forestry, Institute of Carbon Materials Science, Shanxi Datong University, Datong 037009, China.
College of Agriculture and Life Science, Shanxi Datong University, Datong 037009, China.
Nanomaterials (Basel). 2022 Mar 12;12(6):936. doi: 10.3390/nano12060936.
Numerous reports of graphene-family nanomaterials (GFNs) promoting plant growth have opened up a wide range of promising potential applications in agroforestry. However, several toxicity studies have raised growing concerns about the biosafety of GFNs. Although these studies have provided clues about the role of GFNs from different perspectives (such as plant physiology, biochemistry, cytology, and molecular biology), the mechanisms by which GFNs affect plant growth remain poorly understood. In particular, a systematic collection of data regarding differentially expressed genes in response to GFN treatment has not been conducted. We summarize here the fate and biological effects of GFNs in plants. We propose that soil environments may be conducive to the positive effects of GFNs but may be detrimental to the absorption of GFNs. Alterations in plant physiology, biochemistry, cytological structure, and gene expression in response to GFN treatment are discussed. Coincidentally, many changes from the morphological to biochemical scales, which are caused by GFNs treatment, such as affecting root growth, disrupting cell membrane structure, and altering antioxidant systems and hormone concentrations, can all be mapped to gene expression level. This review provides a comprehensive understanding of the effects of GFNs on plant growth to promote their safe and efficient use.
大量关于石墨烯基纳米材料（GFNs）促进植物生长的报道为农林业开辟了广泛的潜在应用前景。然而，多项毒性研究引发了人们对GFNs生物安全性的日益担忧。尽管这些研究从不同角度（如植物生理学、生物化学、细胞学和分子生物学）提供了关于GFNs作用的线索，但GFNs影响植物生长的机制仍知之甚少。特别是，尚未对响应GFNs处理的差异表达基因进行系统的数据收集。我们在此总结了GFNs在植物中的归宿和生物学效应。我们提出，土壤环境可能有利于GFNs的积极作用，但可能不利于GFNs的吸收。讨论了植物生理学、生物化学、细胞学结构以及响应GFNs处理的基因表达变化。巧合的是，GFNs处理引起的从形态到生化尺度的许多变化，如影响根系生长、破坏细胞膜结构、改变抗氧化系统和激素浓度等，都可以映射到基因表达水平。本综述全面了解了GFNs对植物生长的影响，以促进其安全有效利用。
