Trace elements-induced phytohormesis: a critical review and mechanistic interpretation
Article
Article Title | Trace elements-induced phytohormesis: a critical review and mechanistic interpretation |
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ERA Journal ID | 4669 |
Article Category | Article |
Authors | Shahid, Muhammad (Author), Niazi, Nabeel Khan (Author), Rinklebe, Jorg (Author), Bundschuh, Jochen (Author), Dumat, Camille (Author) and Pinelli, Eric (Author) |
Journal Title | Critical Reviews in Environmental Science and Technology |
Journal Citation | 50 (19), pp. 1984-2015 |
Number of Pages | 32 |
Year | 2020 |
Publisher | Taylor & Francis |
Place of Publication | United States |
ISSN | 1064-3389 |
1547-6537 | |
Digital Object Identifier (DOI) | https://doi.org/10.1080/10643389.2019.1689061 |
Web Address (URL) | https://www.tandfonline.com/doi/abs/10.1080/10643389.2019.1689061 |
Abstract | Despite considerable research about biogeochemical behavior of trace elements (TEs) in soil-plant-human systems, there is still a gap of knowledge regarding dose–response relationship, especially for low-applied doses. Trace elements such as mercury, cadmium, antimony and others are highly toxic, without any known essential function in plants. Nevertheless, recent toxicology and risk assessment studies revealed TE-induced hormesis in plants, i.e. stimulation in plant growth at low-doses while suppression at high-doses. This is the first review critically reviewing the TE-induced phytohormetic. The review compares hormetic effects for 366 observations from various research articles among different (i) toxic TEs, (ii) plant species, (iii) plant response parameters (end points), and (iv) exposure durations. It was observed that various toxic TEs, especially Cd, induce hormesis in plants. The mean value of Maximum Stimulatory Response (MAX) was 27% higher compared to the control response, with a range of 0.71 to 1122%. This review critically highlights the TE-induced phytohormesis by discussing possible mechanisms such as the (i) activation of plant tolerance mechanisms after TE-induced overproduction of reactive oxygen species (ROS), and (ii) interplay between phytohormones and TE-mediated ROS production towards plant growth. Highlights First review highlighting trace elements-induced hormesis in plants Trace elements -induced phytohormesis is evaluated for 366 endpoints The hormesis varies for different plants, trace elements, endpoints & durations Activation of plant defense and phytohormones results trace elements-induced hormesis Validation of mechanisms of trace elements-mediated phytohormesis is required. |
Keywords | trace elements, dose–response, relationship and mechanisms, hormesis, plants |
Contains Sensitive Content | Does not contain sensitive content |
ANZSRC Field of Research 2020 | 410404. Environmental management |
300499. Crop and pasture production not elsewhere classified | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | COMSATS University Islamabad, Pakistan |
School of Civil Engineering and Surveying | |
University of Wuppertal, Germany | |
University of Toulouse, France | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q5993/trace-elements-induced-phytohormesis-a-critical-review-and-mechanistic-interpretation
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