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New Insight into Cadmium Phytoremediation – Volume II
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New Insight into Cadmium Phytoremediation – Volume II

A special issue of Plants (ISSN 2223-7747). This special issue belongs to the section "Plant Physiology and Metabolism".

Deadline for manuscript submissions: closed (29 February 2024) | Viewed by 787

Special Issue Editor

Dr. Ryuichi Takahashi

E-Mail Website
Guest Editor
Prefectural Agricultural Experiment Station Dept of Crop Research, Akita 010-1231, Japan
Interests: rice breeding; plant nutrition; plant molecular biology; heavy metal; transporters
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Cadmium (Cd) is a toxic heavy metal that is mainly consumed when a person eats agricultural products produced in a Cd-contaminated field, and its accumulation in the human body can cause severe health issues. Cd pollution in agricultural fields is an extensive problem all over the world and must be resolved as soon as possible in order to ensure the stable production of agricultural products and food safety.

Phytoremediation, being low-cost and easy to perform on a large scale, is one of the most effective methods for purifying the soil of Cd. In general, the amount of Cd taken from the soil by phytoremediation depends on the biomass and Cd concentration in the aerial parts of the plants. Cd absorption from the soil to the plant roots and translocation within the plant occurs mainly via heavy metal transporters. However, the mechanisms of Cd accumulation in the aerial parts are not well understood in many plant species.

We are now re-opening the Special Issue, “New Insight into Cadmium Phytoremediation” as Volume II. We welcome research articles on both Cd phytoremediation and the materials that can be used for it in the future, as well as candidate plant species that accumulate considerable amounts of Cd and genetic resources related to Cd absorption and/or translocation.

Dr. Ryuichi Takahashi
Guest Editor

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

  • cadmium
  • Cd accumulating plants
  • Cd tolerance
  • environment
  • heavy metal transporter
  • mechanisms of Cd accumulation
  • mechanisms of Cd translocation
  • phytoremediation

Published Papers (1 paper)

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Research

18 pages, 4316 KiB  
Article
Microbiological Mechanisms of Collaborative Remediation of Cadmium-Contaminated Soil with Bacillus cereus and Lawn Plants
by Beibei Zhou, Zehao Yang, Xiaopeng Chen, Ruonan Jia, Shaoxiong Yao, Bin Gan, Dongliang Fan, Xie Yang, Wenqian Li and Yunhan Chen
Plants 2024, 13(10), 1303; https://doi.org/10.3390/plants13101303 - 9 May 2024
Viewed by 547
Abstract
Severe cadmium contamination poses a serious threat to food security and human health. Plant–microbial combined remediation represents a potential technique for reducing heavy metals in soil. The main objective of this study is to explore the remediation mechanism of cadmium-contaminated soil using a [...] Read more.
Severe cadmium contamination poses a serious threat to food security and human health. Plant–microbial combined remediation represents a potential technique for reducing heavy metals in soil. The main objective of this study is to explore the remediation mechanism of cadmium-contaminated soil using a combined approach of lawn plants and microbes. The target bacterium Bacillus cereus was selected from cadmium-contaminated soil in mining areas, and two lawn plants (Festuca arundinacea A‘rid III’ and Poa pratensis M‘idnight II’) were chosen as the target plants. We investigated the remediation effect of different concentrations of bacterial solution on cadmium-contaminated soil using two lawn plants through pot experiments, as well as the impact on the soil microbial community structure. The results demonstrate that Bacillus cereus promotes plant growth, and the combined action of lawn plants and Bacillus cereus improves soil quality, enhancing the bioavailability of cadmium in the soil. At a bacterial suspension concentration of 105 CFU/mL, the optimal remediation treatment was observed. The removal efficiency of cadmium in the soil under Festuca arundinacea and Poa pratensis treatments reached 33.69% and 33.33%, respectively. Additionally, the content of bioavailable cadmium in the rhizosphere soil increased by up to 13.43% and 26.54%, respectively. Bacillus cereus increased the bacterial diversity in the non-rhizosphere soil of both lawn plants but reduced it in the rhizosphere soil. Additionally, the relative abundance of Actinobacteriota and Firmicutes, which have potential for heavy metal remediation, increased after the application of the bacterial solution. This study demonstrates that Bacillus cereus can enhance the potential of lawn plants to remediate cadmium-contaminated soil and reshape the microbial communities in both rhizosphere and non-rhizosphere soils. Full article
(This article belongs to the Special Issue New Insight into Cadmium Phytoremediation – Volume II)
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