Physiological responses, tolerance, and remediation strategies in plants exposed to metalloids

Metalloids are a subset of particular concern to risk assessors and toxicologists because of their well-documented potential hazards to plant system. Most of the metalloids are major environmental contaminants which affect crop productivity when present in high concentrations in soil. Metalloids are...

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Bibliographic Details
Published in:Environmental science and pollution research international 2021-08, Vol.28 (30), p.40233-40248
Main Authors: Singh, Simranjeet, Kumar, Vijay, Datta, Shivika, Dhanjal, Daljeet Singh, Singh, Satyender, Kumar, Sanjay, Kapoor, Dhriti, Prasad, Ram, Singh, Joginder
Format: Article
Language:English
Subjects:
Aquatic Pollution
Atmospheric Protection/Air Quality Control/Air Pollution
Biomolecules
Contaminants
Crop production
Detoxification
Earth and Environmental Science
Ecotoxicology
Emerging Trends in Biotechnology for Sustainable Development and Pollution Prevention
Environment
Environmental Chemistry
Environmental Health
Environmental science
Hazard assessment
Metabolites
Metal concentrations
Metalloids
Organs
Physiological responses
Physiology
Phytoremediation
Proteomics
Remediation
Risk assessment
Soil contamination
Toxic hazards
Toxicity
Toxicology
Transcription factors
Waste Water Technology
Water Management
Water Pollution Control
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Summary:Metalloids are a subset of particular concern to risk assessors and toxicologists because of their well-documented potential hazards to plant system. Most of the metalloids are major environmental contaminants which affect crop productivity when present in high concentrations in soil. Metalloids are coupled with carrier proteins of the plasma membrane and translocated to various organs causing changes in key metabolic processes, damages cell biomolecules, and finally inhibit its growth. Phytoremediation-based approaches help in understanding the molecular and biochemical mechanisms for prerequisite recombinant genetic approaches. Recent advancements in proteomics and plant genomics help in understanding the role of transcription factors, metabolites, and genes in plant system which confers metal tolerance. The present review summarizes our current status of knowledge in this direction related to various physiological responses, detoxification mechanisms, and remediation strategies of metalloids in crop plants in relation to plant-metalloid tolerance. Further, the role of various transcription factors and miRNAs in conferring metal tolerance is also briefed. Hence, the present review mainly focused on the alterations in the physiological activities of plants due to metalloid toxicity and the various mechanisms which get activated inside the plants to mitigate their toxic effects.
ISSN:0944-1344
1614-7499
DOI:10.1007/s11356-020-10293-2