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Pb uptake, accumulation, and translocation in plants: Plant physiological, biochemical, and molecular response: A review

文献类型： 外文期刊

作者： Rahman, Shafeeq Ur 1 ; Qin, Anzhen 2 ; Zain, Muhammad 3 ; Mushtaq, Zain 4 ; Mehmood, Faisal 5 ; Riaz, Luqman 6 ; Naveed, Sadiq 7 ; Ansari, Mohammad Javed 8 ; Saeed, Mohd 9 ; Ahmad, Irfan 10 ; Shehzad, Muhammad 11 ;

作者机构： 1.Shenzhen Univ, Coll Chem & Environm Engn, Water Sci & Environm Engn Res Ctr, Shenzhen 518060, Peoples R China

2.Chinese Acad Agr Sci, Inst Farmland Irrigat, Key Lab Crop Water Use & Regulat, Minist Agr & Rural Affairs, Xinxiang 453002, Peoples R China

3.Yangzhou Univ, Coll Agr, Key Lab Crop Genet & Physiol Jiangsu Prov, Key Lab Crop Cultivat & Physiol Jiangsu Prov, Yangzhou 225009, Peoples R China

4.Univ Punjab, Fac Agr Sci, Dept Soil Sci, Lahore, Pakistan

5.Sindh Agr Univ, Fac Agr Engn, Dept Land & Water Management, Tandojam 70060, Pakistan

6.Kohsar Univ Murree, Dept Environm Sci, Punjab 47150, Pakistan

7.Chinese Acad Sci, Inst Urban Environm, Xiamen, Peoples R China

8.Mahatma Jyotiba Phule Rohilkhand Univ Bareilly, Hindu Coll Moradabad, Dept Bot, Moradabad 244001, India

9.Univ Hail, Coll Sci, Dept Biol, POB 2240, Hail, Saudi Arabia

10.King Khalid Univ, Coll Appl Med Sci, Dept Clin Lab Sci, Abha, Saudi Arabia

11.Chinese Acad Agr Sci, Inst Cotton Res, State Key Lab Cotton Biol, Anyang, Henan, Peoples R China

关键词： Lead (Pb); Pb-uptake; Phytotoxicity; Pb-tolerance; Remediation techniques

期刊名称：HELIYON （ 影响因子：4.0； 五年影响因子：4.1 ）

ISSN：

年卷期： 2024 年 10 卷 6 期

页码：

收录情况： SCI

摘要： Lead (Pb) is a highly toxic contaminant that is ubiquitously present in the ecosystem and poses severe environmental issues, including hazards to soil-plant systems. This review focuses on the uptake, accumulation, and translocation of Pb metallic ions and their toxicological effects on plant morpho-physiological and biochemical attributes. We highlight that the uptake of Pb metal is controlled by cation exchange capacity, pH, size of soil particles, root nature, and other physiochemical limitations. Pb toxicity obstructs seed germination, root/shoot length, plant growth, and final crop-yield. Pb disrupts the nutrient uptake through roots, alters plasma membrane permeability, and disturbs chloroplast ultrastructure that triggers changes in respiration as well as transpiration activities, creates the reactive oxygen species (ROS), and activates some enzymatic and non-enzymatic antioxidants. Pb also impairs photosynthesis, disrupts water balance and mineral nutrients, changes hormonal status, and alters membrane structure and permeability. This review provides consolidated information concentrating on the current studies associated with Pb-induced oxidative stress and toxic conditions in various plants, highlighting the roles of different antioxidants in plants mitigating Pb-stress. Additionally, we discussed detoxification and tolerance responses in plants by regulating different gene expressions, protein, and glutathione metabolisms to resist Pb-induced phytotoxicity. Overall, various approaches to tackle Pb toxicity have been addressed; the phytoremediation techniques and biochar amendments are economical and eco-friendly remedies for improving Pb-contaminated soils.

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