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The Transfer of Metal(loid)s in Soil–Plant Systems
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The Transfer of Metal(loid)s in Soil–Plant Systems

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant–Soil Interactions".

Deadline for manuscript submissions: closed (31 December 2024) | Viewed by 1567

Special Issue Editors

Prof. Dr. Ali Boularbah

E-Mail Website
Guest Editor
1. Laboratoire de Bioressources et Sécurité Sanitaire des Aliments, Faculté des Sciences et Techniques, Université Cadi Ayyad, Boulevard Abdelkrim Khattabi, BP 549, Marrakech 40000, Morocco
2. Mohammed VI Polytechnic University, Center of Excellence for Soil and Fertilizer Research in Africa, College of Agriculture and Environmental Sciences, Lot 660, Hay Moulay Rachid, Ben Guerir, Morocco
Interests: environmental science; urban soils; mining soils; metal(loid)s pollution; soil microbiology; bioremediation; phytoremediation; environmental toxicity tests; health risk assessment
Dr. Sofia Isabel Almeida Pereira

E-Mail Website1 Website2
Guest Editor
CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal
Interests: environmental biotechnology; phytoremediation; phytomanagement; microbial assisted phytotechnological approaches; plant-microbe interactions; soil health; development of bioinoculant formulations; effects of climate change and related abiotic stresses on plant growth and development
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We are pleased to announce this Special Issue of Plants (MDPI) entitled “The Transfer of Metal(loid)s in Soil–Plant Systems”. We welcome the submission of interdisciplinary work in the format of original research papers, case studies, and review articles.

Soils may harbor elevated concentrations of metal(loid) micropollutants arising both from natural and/or anthropogenic sources including sewage sludge application, wastewater irrigation, and agrochemical inputs. The contamination of agricultural soils by metal(loid)s is becoming a growing concern due to its implications for food safety issues, the associated health risks, and detrimental impacts on terrestrial ecosystems. Cultivating plants for food or fodder on contaminated soils poses the risk of absorption and subsequent transfer to edible parts, potentially endangering human and animal health. Metal accumulation in plant tissues can result from the absorption of metals by root systems and/or from the deposition of airborne metal contaminants onto plant surfaces. The extent of metal(loid) accumulation in plant tissues is highly influenced by a multitude of factors including the physicochemical and biological properties of soils, the elements involved, and the plant species.

Submissions should encompass cutting-edge research on the origin, distribution, and behavior of metal(loid)s in soils, including their transfer within the soil–plant system. Emphasis should be given to rhizosphere processes influencing metal transfer, as well as methods for assessing bioavailability and conducting health risk assessments. Additionally, we strongly encourage the submission of papers focused on assessing the impact of sustainable farming practices, such as the use of organo-mineral amendments, crop rotation strategies, and microbial inoculation on the dynamics of micropollutants in the plant–soil system.

Prof. Dr. Ali Boularbah
Dr. Sofia Isabel Almeida Pereira
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Plants is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • metals
  • metalloids
  • natural origin
  • anthropogenic origin
  • bioavailability
  • toxicity
  • soil/plant transfer
  • plant uptake
  • rhizospheric mechanisms
  • soil health
  • organo-mineral amendments
  • bioaugmentation
  • cropping patterns

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Published Papers (1 paper)

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Research

16 pages, 5596 KiB  
Article
Response of Plant Endophyte Communities to Heavy Metal Stress and Plant Growth Promotion by the Endophyte Serratia marcescens (Strain JG1)
by Jiayi Liu, Chao Liu, Jiaxin Zheng, Xiaoxia Zhang, Kang Zheng and Jiayao Zhuang
Plants 2024, 13(19), 2755; https://doi.org/10.3390/plants13192755 - 30 Sep 2024
Viewed by 1083
Abstract
Effects of heavy metals on soil microbial communities have been extensively studied due to their persistence in the environment and imposed threats to living organisms; however, there is a lack of in-depth studies of the impacts of heavy metals on plant endophyte communities. [...] Read more.
Effects of heavy metals on soil microbial communities have been extensively studied due to their persistence in the environment and imposed threats to living organisms; however, there is a lack of in-depth studies of the impacts of heavy metals on plant endophyte communities. Therefore, the responses of plant endophyte communities to different concentrations of heavy metals were investigated in this study. The endophyte communities of plants existing in severely (W1, Pb, 110.49 mg/kg, Cd, 1.11 mg/kg), moderately (W2, Pb, 55.06 mg/kg, Cd, 0.48 mg/kg), and mildly (W3, Pb, 39.06 mg/kg, Cd, 0.20 mg/kg) contaminated soils were analyzed by 16s rRNA high-throughput Illumina sequencing. Furthermore, networks were constructed to illustrate the relationships between microorganisms and environmental factors. High-quality sequences were clustered at a 97% similarity level. Results revealed that the diversity of the community and relative abundance of Cyanobacteria phylum increased with decreasing levels of pollution. Cyanobacteria and Proteobacteria were found to be the dominant phylum, while Methylobacterium and Sphingomonas were observed as the dominant genus. Tukey’s HSD test showed that the relative abundances of Cyanobacteria and Proteobacteria phyla and Methylobacterium and Sphingomonas genera differed significantly (p < 0.01) among the plants of the three sample sites. Environmental factor analysis revealed a significant negative correlation (p < 0.01) of Cyanobacteria and a significant positive correlation (p < 0.01) of Methylobacterium with the heavy metal content in the environment. These findings suggest that Cyanobacteria and Methylobacterium may be phylum and genus indicators, respectively, of heavy metal toxicity. Tax4Fun analysis showed the effect of heavy metal toxicity on the abundance of genes involved in plant metabolism. In addition, culturable endophytic strains were isolated to study their resistance to heavy metal stress and their ability to promote plant growth. The potting tests showed that the JG1 strain was tolerant to heavy metals, and it could significantly promote the growth of the host plant under stress caused by multiple heavy metals. Compared to the control, the JG1-treated plants showed a 23.14% increase in height and a 12.84% increase in biomass. Moreover, AP, AK, and HN contents in JG1-treated plants were 20.87%, 12.55%, and 9.03% higher, respectively, under heavy metal stress. The results of this study provide a scientific basis for the construction of an efficient plant endophyte restoration system. Full article
(This article belongs to the Special Issue The Transfer of Metal(loid)s in Soil–Plant Systems)
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