Plant Physiology Section, Department of Botany, Aligarh Muslim University, Aligarh, 202002 Uttar Pradesh, India.
Bull Environ Contam Toxicol. 2011 Jan;86(1):1-17. doi: 10.1007/s00128-010-0171-1. Epub 2010 Dec 19.
Nickel even though recognized as a trace element, its metabolism is very decisive for certain enzyme activities, maintaining proper cellular redox state and various other biochemical, physiological and growth responses. Study of the aspects related with uptake, transport and distributive localization of Ni is very important in various cellular metabolic processes particularly under increased nitrogen metabolism. This review article, in core, encompasses the dual behavior of Ni in plants emphasizing its systemic partitioning, essentiality and ill effects. However, the core mechanism of molecules involved and the successive physiological conditions required starting from the soil absorption, neutralization and toxicity generated is still elusive, and varies among the plants.
镍虽然被认为是一种微量元素,但它的代谢对某些酶的活性、维持适当的细胞氧化还原状态和各种其他生化、生理和生长反应非常重要。研究与镍的吸收、运输和分布定位相关的方面在各种细胞代谢过程中非常重要,特别是在氮代谢增加的情况下。本文主要综述了镍在植物中的双重行为,强调了其系统分配、必需性和有害影响。然而,从土壤吸收、中和和产生的毒性开始,涉及的分子的核心机制以及所需的连续生理条件仍然难以捉摸,并且在不同的植物之间有所不同。