Lead toxicity in plants: Impacts and remediation

U. Zulfiqar; M. Farooq; S. Hussain; M. Maqsood; M. Hussain; M. Ishfaq; M. Ahmad; M.Z. Anjum

doi:10.1016/j.jenvman.2019.109557

Back

Lead toxicity in plants: Impacts and remediation

Journal article

Peer reviewed

Lead toxicity in plants: Impacts and remediation

U. Zulfiqar, M. Farooq, S. Hussain, M. Maqsood, M. Hussain, M. Ishfaq, M. Ahmad and M.Z. Anjum

Journal of Environmental Management, Vol.250, Article 109557

2019

DOI: https://doi.org/10.1016/j.jenvman.2019.109557

Files and links (1)

url

Link to Published Version *Subscription may be requiredView

Abstract

Lead (Pb) is the second most toxic heavy metal after arsenic (As), which has no role in biological systems. Pb toxicity causes a range of damages to plants from germination to yield formation; however, its toxicity is both time and concentration dependent. Its exposure at higher rates disturbs the plant water and nutritional relations and causes oxidative damages to plants. Reduced rate of seed germination and plant growth under stress is mainly due to Pb interference with enzymatic activities, membrane damage and stomatal closure because of induction of absicic acid and negative correlation of Pb with potassium in plants. Pb induced structural changes in photosynthetic apparatus and reduced biosynthesis of chlorophyll pigments cause retardation of carbon metabolism. In this review, the noxious effects of Pb on germination, stand establishment, growth, water relations, nutrient uptake and assimilation, ultra-structural and oxidative damages, carbon metabolism and enzymatic activities in plants are reported. The Pb dynamics in soil rhizosphere and role of remediation strategies i.e. physical, chemical and biological to decontaminate the Pb polluted soils has also been described. Among them, biological strategies, including phytoremediation, microbe-assisted remediation and remediation by organic amendments, are cost effective and environmentally sound remedies for cleaning Pb contaminated soils. Use of organic manures and some agricultural practices have the potential to harvest better crops yield of good quality form Pb contaminated soils.

Details

Title: Lead toxicity in plants: Impacts and remediation
Authors/Creators: U. Zulfiqar (Author/Creator)
M. Farooq (Author/Creator) - University of Agriculture Faisalabad
S. Hussain (Author/Creator) - University of Agriculture Faisalabad
M. Maqsood (Author/Creator) - University of Agriculture Faisalabad
M. Hussain (Author/Creator) - Bahauddin Zakariya University
M. Ishfaq (Author/Creator) - University of Agriculture Faisalabad
M. Ahmad (Author/Creator) - University of Agriculture Faisalabad
M.Z. Anjum (Author/Creator) - University of Agriculture Faisalabad
Publication Details: Journal of Environmental Management, Vol.250, Article 109557
Publisher: Elsevier
Identifiers: 991005540046107891
Copyright: © 2019 Elsevier Ltd
Murdoch Affiliation: School of Agricultural Sciences
Language: English
Resource Type: Journal article

UN Sustainable Development Goals (SDGs)

This output has contributed to the advancement of the following goals:

Source: InCites

Metrics

52 Record Views

406 Times Cited - Web of Science

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Highly Cited Paper

Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.91 Contamination & Phytoremediation; 3.91.172 Phytoremediation Mechanisms
Web Of Science research areas: Environmental Sciences
ESI research areas: Environment/Ecology