Mercury resistance and plant growth promoting traits of endophytic bacteria isolated from mercury-contaminated soil

Ustiatik, Reni; Nuraini, Yulia; Suharjono, Suharjono; Jeyakumar, Paramsothy; Anderson, Christopher; Handayanto, Eko

doi:10.1080/10889868.2021.1973950

Cited by 12 publications

(6 citation statements)

References 75 publications

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“…PGPB can also be suitable for mitigating arsenic (As) pollution [65]. The reduction in the toxic effects of mercury has been confirmed for Jeotgalicoccus huakuii and Bacillus amyloliquefaciens bacteria [66]. These latest results have also been collected in tabular form (Table 1).…”

Section: Role Of Pgpb In Phytoremediationmentioning

confidence: 85%

The Role of the Plant–Soil Relationship in Agricultural Production—With Particular Regard to PGPB Application and Phytoremediation

et al. 2023

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Plant growth-promoting bacteria (PGPB) and other living organisms can help with the challenges of modern agriculture. PGPB offer ever-expanding possibilities for science and commerce, and the scientific results have been very advanced in recent years. In our current work, we collected the scientific results of recent years and the opinions of experts on the subject. Opinions and results on soil–plant relations, as well as the importance of PGPB and the latest related experiences, are important topics of our review work, which highlights the scientific results of the last 3–4 years. Overall, it can be concluded from all these observations that the bacteria that promote plant development are becoming more and more important in agriculture almost all over the world, thus, promoting more sustainable and environmentally conscious agricultural production and avoiding the use of artificial fertilizers and chemicals. Since many mechanisms of action, namely biochemical and operational processes, are still under investigation, a new emerging scientific direction is expected in the coming years with regard to PGPB, microbial, and other plant growth-stimulating substances, in which omics and microbial modulation also play a leading role.

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Section: Role Of Pgpb In Phytoremediationmentioning

confidence: 85%

The Role of the Plant–Soil Relationship in Agricultural Production—With Particular Regard to PGPB Application and Phytoremediation

et al. 2023

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“…The tested bacteria were inoculated into Petri dishes containing NA medium using a pour plate method. The paper discs containing Pb were placed onto NA plates and then incubated at 28 °C for 48 h according to the method used by Ustiatik et al (2022) with modification. The tested bacteria's ability in Pb detoxification was measured according to the inhibition zone on the medium (Equation 1).…”

Section: Lead Minimum Inhibitory Concentration Bioassaymentioning

confidence: 99%

Lead (Pb)-Resistant Bacteria Improve <i>Brassica chinensis</i> Biomass and Reduce Pb Concentration in Pb-Contaminated Soil

Pertiwi,

Ustiatik,

Nuraini

2024

J.Tropical Biodiversity Biotechnology

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Applications of inorganic fertilisers and pesticides frequently increase lead (Pb) content in the soil and food crops. This study aims to isolate Pb-resistant bacteria and test the isolated bacteria in reducing Pb concentration and increasing biomass production of Brassica chinensis on Pb-contaminated soil. Soil and plant samples were collected from agricultural land in Batu City, East Java, Indonesia. The isolated bacteria were tested for Pb resistance and then characterised according to 16S rRNA Sequence. A pot trial with a completely randomised block design consisting of 9 treatments and 3 replications was set to determine the effect of Pb-resistant bacteria inoculation on Pb residue, plant growth, and soil nutrients. The result showed that the isolated Pb-resistant bacteria were Bacillus wiedmannii and Bacillus altitudinis. The bacteria were resistant to Pb up to 10,000 mg/L PbNO3. Inoculation of the bacteria increased B. chinensis growth and biomass production, namely increasing the number of leaves (12%) and dry weight (35%). Also, the bacteria reduced Pb residue in the soil by up to 88%. Moreover, soil essential nutrients such as total nitrogen, available phosphorus, and exchangeable potassium increased (12%, 73%, and 200%, respectively) after the application of Pb-resistant bacteria. The bacteria have the potential for bioremediation of Pb-contaminated soils on a large scale due to the bacteria prevent Pb uptake by food crops such as B. chinensis by reducing Pb content in the soil, which is good for food safety and environmental sustainability.

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“…The use of microbial bioremediation for the cleanup of mercury contaminated water was first demonstrated by Williams and Silver (1984), who assessed bacterial resistance and detoxification of heavy metals (Ustiatik et al, 2022). Since then, the application of this process has been made easier by the transgenic approach (Saravanan et al, 2022).…”

Section: Microbial Bioremediationmentioning

confidence: 99%

“…Microbial bioremediation is an effective alternative to traditional remediation processes because it is sustainable, eco-friendly, costeffective, reduces the chances of producing secondary pollutants and requires less energy than chemical methods (Hou et al, 2023). Moreover, it can be useful to the polluted area itself and has great potential for pollutant removal (Ustiatik et al, 2022). Table 1 lists microbes used in bioremediation of Hg.…”

Section: Microbial Bioremediationmentioning

confidence: 99%

Bioremediation of mercury contaminated soil and water: A review

Kumar,

Chawla

et al. 2023

Land Degrad Dev

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Mercury (Hg) pollution of soil and water environments is a major global threat to human health, agri‐food systems and ecosystems and industrial activities mainly coal combustion augmented their content in different environmental media. Bioremediation is a nature‐based solution involving microbial‐ and plant‐based (phytoremediation) technologies that clean‐up Hg contaminated sites. Here, we review Hg‐resistant bacteria and how latest insights in our understanding of the cellular and biochemical mechanisms of the mer operon genes responsible for Hg resistance and transformation have facilitated developments in microbial Hg‐bioremediation. We also review the phytoremediation mechanisms, including those of bacterial‐ and fungi‐assisted phytoremediation processes, which have shown promising results in reducing Hg2+ to Hg0. This review provides a detailed knowledge of novel Hg bioremediation mechanisms and methods. Consequently, microbial‐ and phyto‐based bioremediation technologies have a critical role in the reclamation of Hg‐contaminated environments and the protection of human health and ecosystems.

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Mercury resistance and plant growth promoting traits of endophytic bacteria isolated from mercury-contaminated soil

Cited by 12 publications

References 75 publications

The Role of the Plant–Soil Relationship in Agricultural Production—With Particular Regard to PGPB Application and Phytoremediation

The Role of the Plant–Soil Relationship in Agricultural Production—With Particular Regard to PGPB Application and Phytoremediation

Lead (Pb)-Resistant Bacteria Improve <i>Brassica chinensis</i> Biomass and Reduce Pb Concentration in Pb-Contaminated Soil

Bioremediation of mercury contaminated soil and water: A review

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