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In search for potential biomarkers of copper stress in aquatic plants
Aquatic Toxicology ( IF 4.5 ) Pub Date : 2021-08-28 , DOI: 10.1016/j.aquatox.2021.105952
Maha Krayem 1 , S El Khatib 2 , Yara Hassan 2 , Véronique Deluchat 3 , Pascal Labrousse 3
Affiliation  

Over the last few decades, the use of pesticides and discharge of industrial and domestic wastewater on water surfaces have increased. Especially, Copper (Cu) pollution in aquatic ecosystems could constitute a major health problem, not only for flora and fauna but also for humans. To cope with this challenge, environmental monitoring studies have sought to find Cu-specific biomarkers in terrestrial and aquatic flora and/or fauna. This review discusses the toxic effects caused by Cu on the growth and development of plants, with a special focus on aquatic plants. While copper is considered as an essential metal involved in vital mechanisms for plants, when in excess it becomes toxic and causes alterations on biomarkers: biochemical (oxidative stress, pigment content, phytochelatins, polyamines), physiological (photosynthesis, respiration, osmotic potential), and morphological. In addition, Cu has a detrimental effect on DNA and hormonal balance. An overview of Cu toxicity and detoxification in plants is provided, along with information regarding Cu bioaccumulation and transport. Awareness of the potential use of these reactions as specific biomarkers for copper contamination has indeed become essential.



中文翻译:

寻找水生植物铜胁迫的潜在生物标志物

在过去的几十年里,农药的使用以及工业和生活废水在水面上的排放有所增加。特别是,水生生态系统中的铜 (Cu) 污染可能构成主要的健康问题,不仅对动植物而且对人类。为了应对这一挑战,环境监测研究试图在陆生和水生植物群和/或动物群中寻找铜特异性生物标志物。本综述讨论了铜对植物生长发育的毒性作用,特别关注水生植物。虽然铜被认为是参与植物重要机制的必需金属,但当过量时,它会变得有毒并导致生物标志物的改变:生化(氧化应激、色素含量、植物螯合素、多胺)、生理学(光合作用、呼吸、渗透势)和形态学。此外,Cu 对 DNA 和荷尔蒙平衡有不利影响。提供了植物中铜毒性和解毒的概述,以及有关铜生物积累和运输的信息。意识到这些反应作为铜污染的特定生物标志物的潜在用途确实变得至关重要。

更新日期:2021-09-04
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