Marslin Gregory, Sheeba Caroline J, Franklin Gregory
Chinese-German Joint Laboratory for Natural Product Research, Qinling-Bashan Mountains Bioresources Comprehensive Development C.I.C., College of Biological Science and Engineering, Shaanxi University of TechnologyHanzhong, China.
Randall Division of Cell and Molecular Biophysics, King's College LondonLondon, United Kingdom.
Front Plant Sci. 2017 May 19;8:832. doi: 10.3389/fpls.2017.00832. eCollection 2017.
The particles within the size range of 1 and 100 nm are known as nanoparticles (NPs). NP-containing wastes released from household, industrial and medical products are emerging as a new threat to the environment. Plants, being fixed to the two major environmental sinks where NPs accumulate - namely water and soil, cannot escape the impact of nanopollution. Recent studies have shown that plant growth, development and physiology are significantly affected by NPs. But, the effect of NPs on plant secondary metabolism is still obscure. The induction of reactive oxygen species (ROS) following interactions with NPs has been observed consistently across plant species. Taking into account the existing link between ROS and secondary signaling messengers that lead to transcriptional regulation of secondary metabolism, in this perspective we put forward the argument that ROS induced in plants upon their interaction with NPs will likely interfere with plant secondary metabolism. As plant secondary metabolites play vital roles in plant performance, communication, and adaptation, a comprehensive understanding of plant secondary metabolism in response to NPs is an utmost priority.
尺寸范围在1至100纳米之间的颗粒被称为纳米颗粒（NPs）。从家用、工业和医疗产品中释放出的含纳米颗粒废物正成为对环境的一种新威胁。植物固定在纳米颗粒积累的两个主要环境汇——即水和土壤中，无法逃脱纳米污染的影响。最近的研究表明，纳米颗粒会显著影响植物的生长、发育和生理。但是，纳米颗粒对植物次生代谢的影响仍不清楚。在各种植物物种中都一致观察到与纳米颗粒相互作用后活性氧（ROS）的诱导。考虑到ROS与导致次生代谢转录调控的次生信号信使之间的现有联系，从这个角度我们提出这样的观点：植物与纳米颗粒相互作用时诱导产生的ROS可能会干扰植物次生代谢。由于植物次生代谢产物在植物性能、交流和适应中发挥着至关重要的作用，全面了解植物对纳米颗粒的次生代谢反应是当务之急。
