Bioaccumulation for heavy metal removal: a review

Nnaji, Nnabueze Darlington; Onyeaka, Helen; Miri, Taghi; Ugwa, Chinenye

doi:10.1007/s42452-023-05351-6

Cited by 67 publications

(11 citation statements)

References 95 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…40 This is an effective, sustainable, economical, and environmentfriendly method for reclaiming contaminated soils. 41 Thus, we investigated whether B. safensis EH143 can bioaccumulate toxic quantities of NaCl and Cd. For this purpose, NaCl and Cd bioaccumulation by EH143 was determined by growing bacteria in LB media spiked with 100 mM NaCl and Cd (0.1 mM and 0.3 mM) alone and combined (100 mM NaCl+0.1 mM Cd and 100 mM NaCl +0.3 mM Cd) for 5 days.…”

Section: Inductively Coupled Plasma Mass Spectrometry (Icp-ms) Analys...mentioning

confidence: 99%

Novel melatonin‐producing Bacillus safensis EH143 mitigates salt and cadmium stress in soybean

Kwon,

Adhikari,

Imran

et al. 2024

Journal of Pineal Research

View full text Add to dashboard Cite

Recently, microorganism and exogenous melatonin application has been recognized as an efficient biological tool for enhancing salt tolerance and heavy metal detoxification in agriculture crops. Thus, the goal of this study was to isolate and evaluate a novel melatonin‐producing plant growth promoting bacterium. With high‐throughput whole genome sequencing, phytohormone measurements, expression profiling, and biochemical analysis, we can identify a novel PGPB that produces melatonin and unravel how it promotes soybean growth and development and protects against salt and Cd stress. We identify the melatonin synthesis pathway (tryptophan→tryptamine→serotonin melatonin) of the halotolerant (NaCl > 800 mM) and heavy metal‐resistant (Cd >3 mM) rhizobacterium Bacillus safensis EH143 and use it to treat soybean plants subjected to Cd and NaCl stresses. Results show that EH143 will highly bioaccumulate heavy metals and significantly improve P and Ca2+ uptake and the K+/Na+ (93%↑under salt stress) ratio while reducing Cd uptake (49% under Cd stress) in shoots. This activity was supported by the expression of the ion regulator HKT1, MYPB67, and the calcium sensors CDPK5 and CaMK1 which ultimately led to increased plant growth. EH143 significantly decreased ABA content in shoots by 13%, 20%, and 34% and increased SA biosynthesis in shoots by 14.8%, 31%, and 48.2% in control, salt, and Cd‐treated plants, upregulating CYP707A1 and CYP707A2 and PAL1 and ICS, respectively. The melatonin content significantly decreased along with a reduced expression of ASMT3 following treatment with EH143; moreover, reduced expression of peroxidase (POD) and superoxide dismutase (SOD) by 134.5% and 39% under salt+Cd stress, respectively and increased level of total amino acids were observed. Whole‐genome sequencing and annotation of EH143 revealed the presence of the melatonin precursor tryptophan synthase (trpA, trpB, trpS), metal and other ion regulators (Cd: cadA, potassium: KtrA and KtrB, phosphate: glpT, calcium: yloB, the sodium/glucose cotransporter: sgIT, and the magnesium transporter: mgtE), and enzyme activators (including the siderophore transport proteins yfiZ and yfhA, the SOD sodA, the catalase katA1, and the glutathione regulator KefG) that may be involved in programming the plant metabolic system. As a consequence, EH143 treatment significantly reduced the contents of lipid peroxidation (O2‐, MDA, and H2O2) up to 69%, 46%, and 29% in plants under salt+Cd stress, respectively. These findings suggest that EH143 could be a potent biofertilizer to alleviate NaCl and Cd toxicity in crops and serve as an alternative substitute for exogenous melatonin application.

show abstract

Section: Inductively Coupled Plasma Mass Spectrometry (Icp-ms) Analys...mentioning

confidence: 99%

Novel melatonin‐producing Bacillus safensis EH143 mitigates salt and cadmium stress in soybean

Kwon,

Adhikari,

Imran

et al. 2024

Journal of Pineal Research

View full text Add to dashboard Cite

show abstract

“…The potential capacity of microbial communities and their use for the improvement of plant production (Valle-Romero et al 2023 ; Vlajkov et al 2023 ; Nagrale et al 2023 ), as well as the use of soil plant processing capacity to reduce the presence of a certain pollutant (Chandel et al 2023 ; Sitarska et al 2023 ; Nnaji et al 2023 ) are issues that have been addressed from different perspectives. Bioremediation or biotechnological remediation of a contaminated environment is presented as an economical alternative with a lower negative impact on the environment (Daniel et al 2022 ).…”

Section: Effects Of Mercury Pollution On Systems and Organismsmentioning

confidence: 99%

“…The heavy metal is retained in the bacterial cell wall, without the need for intracellular bioaccumulation (Jing et al 2022 ; Baran et al 2022 ; Yao et al 2023 ; Zhao et al 2023 ). Phytoextraction (Yu et al 2022 ; Sitarska et al 2023 ; Nnaji et al 2023 ):. A process by which it is intended to remove heavy metals through the use of plants: (i) Fitoextractors: when the metal accumulates in the aerial part (Wang et al 2019 ), and (ii) Phytostabilizers: when accumulation occurs in the root (Dary et al 2010 ; Ke et al 2021 ).…”

Section: Effects Of Mercury Pollution On Systems and Organismsmentioning

confidence: 99%

“…Phytoextraction (Yu et al 2022 ; Sitarska et al 2023 ; Nnaji et al 2023 ):. A process by which it is intended to remove heavy metals through the use of plants: (i) Fitoextractors: when the metal accumulates in the aerial part (Wang et al 2019 ), and (ii) Phytostabilizers: when accumulation occurs in the root (Dary et al 2010 ; Ke et al 2021 ).…”

Section: Effects Of Mercury Pollution On Systems and Organismsmentioning

confidence: 99%

See 1 more Smart Citation

Bioremediation of environments contaminated with mercury. Present and perspectives

González-Reguero

Mora

Lobo

et al. 2023

World J Microbiol Biotechnol

View full text Add to dashboard Cite

Mercury is a highly toxic heavy metal whose emission sources can be both natural and the result of anthropic activity. Its polluting action on soils, and its ability to spread through the atmosphere and aquatic environments, constitutes a threat to human and environmental health; both for its bioaccumulation capacity and for biomagnification through the trophic chain. For this reason, there is a growing scientific and social interest in the reduction of this heavy metal in ecosystems. Bioremediation based on the use of microorganisms and/or plants is postulated as a sustainable alternative to traditional physicochemical methods. The main strategies used for this purpose (individually or in combination) are the volatilization of the contaminant, biosorption, phytoextraction and phytoremediation. All these tools are based on taking advantage of the natural and evolutionary capacity that different organisms have developed to adapt to the presence of various pollutants in the environment. Based on the consulted bibliography, these bioremediation methodologies focus on the use of microorganisms (freely or associated with plants) have been successfully applied in different ecosystems, postulating themselves as a respectful alternative for the future for the recovery of degraded environments. For these reasons there is a growing interest in the scientific community to design and use new techniques in a “One Health” context, which allow interpreting the positive impact of bioremediation. In this sense, the universalization of Omics techniques has allowed to abound in the knowledge of new bacterial taxa, and their biotechnological application. This study pretends to cover the present knowledge about mercury bioremediation techniques. In the same way, some new techniques and perspectives are presented in order to expand the frontiers of future research.

show abstract

“…Bioaccumulation in combination with techniques like phytostabilization and phytodegradation achieves better heavy metal removal 30 . Accumulation of heavy metals and their impacts depends on the ability of the plant species to extract heavy metals from soil, bioaccumates them in roots or translocate them to the vegetative edible parts.…”

Section: Introductionmentioning

confidence: 99%

Assessment of heavy metal accumulation and health risk in three essential edible weeds grown on wastewater irrigated soil

Abdelgawad,

Abd El-Wahed,

Ahmed

et al. 2023

Sci Rep

View full text Add to dashboard Cite

The main problem facing Egypt recently is the shortage of available water resources. Therefore, farmers resort to use wastewater for irrigation. So, the present work aims to assess the impacts of wastewater irrigation on the productivity of three edible weeds (Cichorium endivia, Sonchus oleraceous and Beta vulgaris) and its effect on the nutritional value of plants and its risk on human health. This study will focus on Shibin Al Kanater region, and the physicochemical characteristics of drainage water, canal water, drainage water-irrigated soils and canal-irrigated soils were estimated. The vegetative and traits of edible weeds were determined including their photosynthetic pigments, organic and inorganic nutrients content, and heavy metals content. The health risk index (HRI) associated with consumption of polluted plants was created using the estimated exposure factor of a crop to the oral reference dosage of the toxic metal. The main results showed that biomass productivity of S. oleraceous, B. vulgaris and C. endivia increased due to drainage water irrigation with increasing percentage as 27.9, 19.6, and 19.1%, respectively. Irrigation with drainage water significantly increased the photosynthetic pigments of edible weeds. Irrigation with drainage water increased carbohydrate content, crude protein, total soluble sugar, and gross energy in all studied weeds. C. endivia, S. oleraceus and B. vulgaris plants irrigated with canal and drainage water could accumulate Fe, Zn, Cu, and Co in their roots. C. endivia, S. oleraceus and B. vulgaris plants irrigated with canal water indicated HRI more than the unit for Mn, Cu, Pb, and Cd. This research advises that regulation be put in place to prohibit irrigation using untreated drainage and to restrict the discharge of industrial, domestic, and agricultural wastewater into irrigation canals.

show abstract

Bioaccumulation for heavy metal removal: a review

Cited by 67 publications

References 95 publications

Novel melatonin‐producing Bacillus safensis EH143 mitigates salt and cadmium stress in soybean

Novel melatonin‐producing Bacillus safensis EH143 mitigates salt and cadmium stress in soybean

Bioremediation of environments contaminated with mercury. Present and perspectives

Assessment of heavy metal accumulation and health risk in three essential edible weeds grown on wastewater irrigated soil

Contact Info

Product

Resources

About