Physiological Response and Molecular Mechanisms of Plants to Heavy Metal/Loid Toxicity: 2nd Edition

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Response to Abiotic Stress and Climate Change".

Deadline for manuscript submissions: 31 July 2026 | Viewed by 1643

Special Issue Editors


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Guest Editor
Faculty of biology, Department of Biogeography, Paleoecology and Environmental Protection, University of Lodz, Lodz, Poland
Interests: study of abiotic stress effects on plants through biochemistry; omics; genome editing using CRISPR technology
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Guest Editor
Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China
Interests: crop stress physiology; cellular redox homeostasis; plant ultrastructures; molecular plant improvement; nanotechnology; seed priming
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Guest Editor
1. Key Laboratory of Natural Pesticide and Chemical Biology of the Ministry of Education, South China Agricultural University, Guangzhou 510642, China
2. Yingdong College of Biology and Agriculture, Shaoguan University, Shaoguan 512005, China
Interests: crop molecular stress physiology; ecotoxicology; phytoremediation; plant response to abiotic stress and signaling transduction
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Special Issue Information

Dear Colleagues,

Heavy metal/loid (HM) toxicity poses a significant threat to the growth and development of plants, affecting their ability to photosynthesize, take up nutrients, and maintain cellular homeostasis. Therefore, understanding the physiological and molecular responses to HM toxicity is crucial for developing strategies to mitigate HM pollution and promote sustainable agriculture.

Currently, research in this field focuses on elucidating the complex mechanisms that plants employ to adapt to HM stress. This involves the investigation of physiological changes, such as alterations in the plant's metabolism, antioxidant systems, and gene expression patterns. However, despite the progress that has been made, there is still much to learn about the intricate interactions between plants and HM toxicity. Therefore, this Special Issue aims to publish original articles and reviews that consolidate recent advancements in the field of HM tolerance, as well as to identify potential new mitigation strategies at agronomical, physiological, eco-physiological, and molecular levels, which are involved in a plant’s response to HM toxicity.

The main themes are described as follows:

  1. Examining the intricate molecular mechanisms employed by plants to perceive and adapt to HM toxicity, with a particular emphasis on the crucial roles played by signaling molecules, such as reactive oxygen species (ROS) and phytohormones.
  2. Identifying novel genes and proteins involved in HM detoxification and tolerance mechanisms in plants, providing insights into a plant's adaptive strategies.
  3. Exploring the role of plant microbiota in HM detoxification and its potential in enhancing plant tolerance to HM stress.
  4. Developing genetic engineering and biotechnological approaches to improve the HM tolerance of crop plants, thereby ensuring sustainable crop production in HM-contaminated areas.
  5. Evaluating the ecological consequences of HM stress on plant–insect and plant–microbe interactions, assessing its impact on ecosystem health and stability.

Dr. Aamir Hamid Khan
Dr. Abdul Salam
Dr. Muhammad Zeeshan
Guest Editors

Manuscript Submission Information

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Keywords

  • phytoremediation
  • redox homeostasis
  • plant–environment 
  • interaction metal
  • tolerance index 
  • metal ion uptake phytochelatins

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Published Papers (1 paper)

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Review

34 pages, 9261 KB  
Review
Nano-Enabled Solutions for Plant Abiotic Stress Tolerance and Soil Contaminant Remediation: A Review
by Abdul Salam, Ali Raza Khan, Muhammad Zeeshan, Muhammad Siddique Afridi, Liupeng Yang, Qun Zheng, Zaid Ulhassan, Ruifei Wang, Zhixiang Zhang and Chen Zhao
Plants 2026, 15(4), 535; https://doi.org/10.3390/plants15040535 - 8 Feb 2026
Viewed by 1353
Abstract
Global agriculture and food security are under serious threat from abiotic stresses, including salinity, drought, heavy metals, and extreme temperatures. While industrial development has driven progress, it has also intensified environmental challenges and contributed to declining crop productivity. Tackling these issues demands innovative [...] Read more.
Global agriculture and food security are under serious threat from abiotic stresses, including salinity, drought, heavy metals, and extreme temperatures. While industrial development has driven progress, it has also intensified environmental challenges and contributed to declining crop productivity. Tackling these issues demands innovative and sustainable solutions. Nanotechnology has emerged as an effective approach to enhance stress tolerance, improve nutrient use efficiency, and increase crop yield and quality. This review critically examines the expanding role of nanoparticles (NPs) in mitigating abiotic stresses and promoting sustainable agricultural systems. While several studies have investigated the use of NPs in stress mitigation, ongoing research continues to reveal novel mechanisms and applications, highlighting the untapped potential of nanotechnology in plant science. The review discusses the impact of abiotic stress on plant growth and physiology, followed by a detailed analysis of the mechanisms through which NPs confer stress tolerance. Particular attention is given to the interaction of NPs with phytohormones and other growth regulators, as well as their role in the remediation of contaminated soils. Furthermore, the review highlights the dual role of NPs in stress alleviation and environmental remediation, while also considering emerging concerns about their potential ecological and toxicological impacts. Emphasis is placed on the need for risk assessments and effective management strategies. The review also identifies key knowledge gaps and methodological limitations, offering recommendations to guide future research in this emerging field. Full article
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