Article
Environmental Sciences
Sivagnanam Silambarasan, Peter Logeswari, Alisa S. Vangnai, Balu Kamaraj, Pablo Cornejo
Summary: Two Cd resistant and plant growth-promoting actinobacterial strains were isolated and identified from metal-polluted soils. These strains showed tolerance to multiple abiotic stressors and exhibited various plant growth-promoting traits. Inoculation with these strains improved the growth, photosynthetic pigments, and antioxidant capacity of Sorghum bicolor under different abiotic stress conditions, while reducing Cd accumulation and oxidative damage. These findings suggest that these strains could be effective bioinoculants for phytoremediation of Cd polluted soil.
ENVIRONMENTAL POLLUTION
(2022)
Review
Environmental Sciences
Youshaa Danyal, Kainat Mahmood, Shariat Ullah, Abdur Rahim, Gul Raheem, Aamir Hamid Khan, Abid Ullah
Summary: Industrialization is crucial for economic development, but its effluents often contain toxic substances. Treatment methods for these effluents include physical, chemical, and biological techniques. Among them, biological remediation, particularly plant microbe interactions, is cost-effective and suitable for various kinds of effluents. This study discusses the role of plant growth promoting bacteria (PGPB) in enhancing the phytoremediation processes of industrial effluents.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Nyekachi C. Adele, Bryne T. Ngwenya, Kate Heal, J. Frederick W. Mosselmans
Summary: Inoculation of soil or seeds with plant growth promoting bacteria can ameliorate metal toxicity to plants by changing metal speciation in plant tissues. The speciation changes, particularly an increase in organic acids and thiol complexes, were found significant between the rhizosphere and the root. This study suggests that changes in metal speciation may be driven by microbial metabolism or plant responses.
ENVIRONMENTAL POLLUTION
(2021)
Article
Multidisciplinary Sciences
Yanglong Li, Shumeng Wei, Xiangteng Chen, Yuhong Dong, Mansheng Zeng, Chaowu Yan, Lingyu Hou, Ruzhen Jiao
Summary: This study investigated the feasibility of multifunctional endophytic bacteria strains for soil cadmium (Cd) remediation. These strains isolated from the roots of woody plants grown on Cd-contaminated soil showed a high tolerance to Cd toxicity and the ability to produce siderophores. The inoculation of certain strains effectively increased the concentration of acid-soluble Cd and decreased the concentration of other forms of Cd in the Cd-contaminated soils. In pot experiments, the inoculation of specific strains promoted the growth of slash pine under Cd stress. This research provides important resources and a theoretical basis for endophyte-assisted phytoremediation of Cd-contaminated soil.
Article
Environmental Sciences
Qiong Wang, Shun'an Xu, Zheyu Wen, Qizhen Liu, Lukuan Huang, Guosheng Shao, Ying Feng, Xiaoe Yang
Summary: This study compared the effects of single and combined plant growth-promoting bacteria (PGPB) strains on the growth, cadmium (Cd) uptake and accumulation of Brassica juncea L. at different growth stages. The results showed that combined inoculants were more effective in promoting plant growth and Cd uptake. Particularly, the combination of SaMR10 and SaMR12 had the greatest effect on Cd uptake and accumulation.
Article
Plant Sciences
Elham Ahmed Kazerooni, Sajeewa S. N. Maharachchikumbura, Arjun Adhikari, Abdullah Mohammed Al-Sadi, Sang-Mo Kang, Lee-Rang Kim, In-Jung Lee
Summary: Plant growth-promoting rhizobacteria (PGPR), specifically Bacillus amyloliquefaciens isolated from the endorhizosphere of Sasamorpha borealis, showed potential in sustaining pepper growth under drought, salinity, and heavy metal stresses through various biochemical traits. The application of PGPR enhanced survival and physiological traits of pepper seedlings under stress conditions, indicating its potential for phytoremediation of heavy metals and enhancement of plant productivity under salinity and drought stress.
FRONTIERS IN PLANT SCIENCE
(2021)
Article
Green & Sustainable Science & Technology
Jadwiga Wyszkowska, Edyta Boros-Lajszner, Agata Borowik, Jan Kucharski
Summary: Avena sativa and Sinapis alba are viable options for phytoremediation of soil contaminated with Cd2+, with Avena sativa showing greater ability to accumulate Cd2+ in the roots. Although cellulose fertilization stimulated microbial proliferation in Cd2+-contaminated soil, it did not mitigate the adverse effects of Cd2+ on bacterial diversity. Core microbiome of the soils included bacteria from the genera Sphingomonas, Sphingobium, Achromobacter, and Pseudomonas.
Article
Agricultural Engineering
Katarzyna Wielgusz, Marcin Praczyk, Lidia Irzykowska, Dariusz Swierk
Summary: The phytoremediation potential of industrial hemp is influenced by soil pH, fertilization levels, and cadmium concentration. Different hemp varieties exhibit varying abilities to accumulate cadmium and show disparities in response to different agrotechnical conditions.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Environmental Sciences
Zhansheng Mao, Bo Liu, Xianzhi Fang, Jiawei Ma, Dan Liu, Zhisheng Gao, Melisa Munoz Castillo, Zhengqian Ye
Summary: This study explored the effects of alternating current (AC) electric field and fertilization on the phytoremediation efficiency of Cd-contaminated soil. The results showed that the application of AC electric field with organic fertilizer had the most significant promotion effect, increasing plant shoot Cd accumulation by 98.99%. There was a significant interaction between the electric field and fertilizer application, and the combination of AC electric field and Chinese milk vetch organic fertilizer resulted in the strongest improvement in plant Cd uptake.
JOURNAL OF SOILS AND SEDIMENTS
(2022)
Article
Environmental Sciences
Xiaoqian Yang, Jiapeng Li, Zhonghua Yang, Mengxin Chen, Lei Zhang
Summary: This study investigates the combined treatment of Bacillus megaterium and citric acid for repairing Cd-contaminated soil and evaluates its effects on antioxidant enzyme activity, photosynthesis intensity, Cd accumulation, and rhizosphere cadmium migration. The results show that the combined treatment significantly improves oxidative stress defense, promotes plant photosynthesis, and increases rye biomass.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2023)
Article
Microbiology
Ladawan Rattanapolsan, Woranan Nakbanpote, Aphidech Sangdee
Summary: The study isolated Zn- and Cd-tolerant endophytic bacteria from Murdannia spectabilis, identified their characteristics under Zn and Cd stress, and investigated their effects on plants. The results showed that Cupriavidus plantarum MDR5 had good persistence in plants and did not weaken plant growth when inoculated.
ARCHIVES OF MICROBIOLOGY
(2021)
Article
Engineering, Chemical
Lenka Stofejova, Juraj Fazekas, Danica Fazekasova
Summary: This study evaluates the environmental risks of soil and plant contamination in magnesite mining and processing areas in the Slovak Republic, and assesses the phytoremediation potential of dominant plant species. The results show that there are potentially toxic elements in the soil and plants, with the mining and processing of magnesite as the main source of pollution. Phragmites australis and Taraxacum officinale are identified as suitable plant species for phytoremediation.
Review
Environmental Sciences
Babar Hussain, Muhammad Nadeem Ashraf, Shafeeq-ur-Rahman, Aqleem Abbas, Jumei Li, Muhammad Farooq
Summary: This review focuses on the toxicity of cadmium in paddy soil, its accumulation in rice plants and grains, as well as the soil factors influencing Cd uptake by rice plants. The review also discusses the effects of Cd toxicity in rice, management strategies, and future research directions to reduce Cd uptake.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Qian Guo, Jing Ji, Zhenmin Ling, Kai Zhang, Rong Xu, Xiaoyun Leng, Chunlan Mao, Tuoyu Zhou, Haoyang Wang, Pu Liu, Xiangkai Li
Summary: A cellulose-degrading anaerobic bacterium Paracoccus sp. Strain LZ-G1 was isolated from cow dung, capable of degrading cellulose and adsorbing Cd2+. Bioaugmentation with this strain in an AD system significantly increased biogas and methane production from HM-containing plant residues and cow manure. Restoration of the microbial community by LZ-G1 bioaugmentation improved biogas yield and methane production rate during the AD process.
ENVIRONMENTAL POLLUTION
(2021)
Article
Microbiology
Dilara Maslennikova, Igor Koryakov, Ruslan Yuldashev, Irina Avtushenko, Albina Yakupova, Oksana Lastochkina
Summary: Pre-sowing seed treatment with Bacillus subtilis 10-4 (BS), a growth-promoting endophyte, improves the resistance of wheat to cadmium stress by enhancing seed germination, biomass accumulation, photosynthetic pigments content, reducing oxidative stress and cadmium ions accumulation, and enhancing the integrity and barrier properties of the cell wall.