Computational insights into mercuric reductase from Pseudomonas fluorescens : a bioinformatic and molecular dynamics approach for mercury detoxification DOI
Anila Hoda,

Valbona Kolaneci,

Mirela Lika

и другие.

Bioremediation Journal, Год журнала: 2024, Номер unknown, С. 1 - 17

Опубликована: Ноя. 20, 2024

Mercury (Hg) pollution poses significant threats to human health and ecosystems worldwide due its persistence, bioaccumulation, toxic effects. This study focuses on mercuric reductase from Pseudomonas fluorescens (UniProt ID Q51772), a key enzyme involved in detoxifying mercury through reduction less elemental form, Hg(0). aims explore the potential of this for bioremediation applications, focusing structural insights, functional mechanisms, biotechnological enhancements facilitate detoxification. The protein sequence Q51772 was analyzed using bioinformatics tools determine attributes. Physiochemical properties, including molecular weight, isoelectric point, secondary structure predictions, were assessed. Virulence prediction confirmed protein's nontoxic nonpathogenic nature. Homology modeling docking studies provided insights into three-dimensional binding interactions with substrates. consists 548 amino acids belongs Pyridine nucleotide-disulphide oxidoreductase family, class I. It features specific domains crucial reduction, identified Pfam InterPro analyses. analysis indicated stable hydrophilic tendencies conducive enzymatic function. Structural validated by ProQ PROCHECK reliability predicted structure. Molecular organic compound wild-type mutant revealed strong affinities, hydrogen bonds involving residues Gly95, Thr122, Asp390. Mercuric emerges as promising candidate mercury-contaminated environments. Future research should focus optimizing performance under diverse environmental conditions advance sustainable solutions control.

Язык: Английский

Insights Into Earthworms and Fungi: Pioneering Roles in Mitigating Global Food Scarcity and Combatting Land Degradation DOI Open Access
Sadashiv Chaturvedi, Amit Kumar, Min Liu

и другие.

Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Янв. 9, 2025

ABSTRACT Climate change significantly impacts terrestrial ecosystems by altering soil moisture, temperature regimes, rainfall patterns, and frequency of extreme weather events. These disruptions lead to shifts in community structures, accelerates land degradation processes, which turn exacerbate the global food crisis. This review explores roles earthworms fungi improving health mitigating insecurity through their contributions nutrient cycling, fertility, plant growth. Earthworms recognized as key biological agents structures enhancement, carbon sequestration. They play crucial heavy metal remediation, quality, fostering sustainable agricultural practices such organic farming. The emphasizes influence on dynamics, particularly response residues management, characteristics, field conditions. Earthworm activity positively affects microbial communities, growth, even under stress factors like contamination extremes. Review identifies research gaps understanding earthworm distribution, performance, capacity for remediation varied agro‐ecological contexts. In addition biotic factors, present also examines alternative habits superfoods strategies address zero hunger, aligning with United Nations Sustainable Development Goals (SDGs) poverty eradication, improved health, overall well‐being. By incorporating into systems addressing critical needs, there is significant potential mitigate contribute alleviation crises.

Язык: Английский

Процитировано

2
Utilization of fungal and bacterial bioremediation techniques for the treatment of toxic waste and biowaste DOI Creative Commons
Natesan Thirumalaivasan, Lalitha Gnanasekaran,

Suresh Kumar

и другие.

Frontiers in Materials, Год журнала: 2024, Номер 11

Опубликована: Июль 15, 2024

The escalating accumulation of toxic wastes and biowastes constitutes a critical environmental crisis that demands immediate effective solutions. Traditional waste treatment methods, predominantly chemical physical, are increasingly viewed as unsustainable, burdened by high operational costs the risk generating secondary pollutants. Against this backdrop, bioremediation emerges crucial sustainable alternative, utilizing natural detoxifying capabilities microorganisms. This review article focuses on use fungal bacterial strategies in bioremediation, emphasizing their vital role degradation, stabilization, or detoxification We provide an in-depth analysis mechanisms which fungi bacteria break down various contaminants, presenting current snapshot field’s state knowledge. highlights recent innovative advancements improve effectiveness expand applicability technologies. Moreover, it discusses practical challenges scaling these solutions to meet global needs suggests directions for future research implementation. synthesis not only underscores significance microbial addressing pressing problems but also acts call action continued innovation management hazardous wastes.

Язык: Английский

Процитировано

12
Overview of bioremediation as a method for metal-contaminated wastewater treatment DOI
Bruna de Almeida Martins, Bruna de Almeida Martins

Environmental Science and Pollution Research, Год журнала: 2025, Номер unknown

Опубликована: Март 5, 2025

Язык: Английский

Процитировано

1
Bioremediation strategies and mechanisms of bacteria for resistance against heavy metals: a review DOI
Anjali Patil, Sudip Chakraborty,

Yuvraj Yadav

и другие.

Bioremediation Journal, Год журнала: 2024, Номер unknown, С. 1 - 33

Опубликована: Июль 12, 2024

Язык: Английский

Процитировано

7
Global Perspectives on Lead Contamination and Health Risks in Surface Water, Rice Grains, and Soils DOI Open Access
Amit Kumar, Vinod Kumar, Monika Thakur

и другие.

Land Degradation and Development, Год журнала: 2025, Номер unknown

Опубликована: Фев. 4, 2025

ABSTRACT Lead (Pb), a pervasive and highly toxic metal, poses significant environmental health risks due to its extensive biogeochemical cycling, driven by anthropogenic activities. This review evaluates the hazards allied with Pb contamination in surface water bodies, soils, rice grains, based on comprehensive analysis (2015–2024) of 118, 133, 102 literature studies, respectively. The year‐wise assessment concentration bodies soils frequently exceeded their permissible limits 2015, 2017, 2018, 2019, 2020, 2022. However, mean grains consistently surpassed Codex Alimentarius limit (2.5 μg/g) across analyzed years. Geographically, Bangladesh, India, Pakistan, China for emphasizing regional vulnerabilities. Health risk indicated hazard quotient values exceeding one children adults exhibiting non‐carcinogenic risks. In dermal exposure identified as predominant pathways contributing followed ingestion, while inhalation presented lower risk. These findings emphasize imperative necessitate implementing strict regulatory frameworks preventive measures mitigate environment minimize potential impacts. study advances understanding risks, offering valuable insights targeted mitigation strategies public interventions.

Язык: Английский

Процитировано

0
Assessment of Heavy Metals Content and Diversity of Mercury-Tolerant Bacteria in Heavy Metal-Polluted Environmental Samples and Mercury Bioremediation Ability of Isolated Strains DOI Creative Commons
Vinay Yadav,

Anjali Manjhi,

Nithya Vadakedath

и другие.

Environmental Advances, Год журнала: 2025, Номер unknown, С. 100624 - 100624

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0
Phosphate-Solubilizing Bacteria Cereibacter sphaeroides ST16 and ST26 Enhanced Soil Phosphorus Solubility, Rice Growth, and Grain Yield in Acidic-Contaminated Saline Soil DOI Creative Commons

Le Tien Dat,

Le Thi Chinh,

Ly Ngoc Thanh Xuan

и другие.

Biology, Год журнала: 2025, Номер 14(4), С. 443 - 443

Опубликована: Апрель 19, 2025

Soil phosphorus is heavily restricted by soil acidification and salinization. There a need to determine biological solution for this issue replace the overuse of chemical fertilizer that aggravates adverse conditions, such as salinity, acidity, metallic toxicity. Therefore, study aimed at determining dynamics in terms soil, growth, yield rice under supplementation phosphate (P)-solubilizing purple nonsulfur bacteria (PNSB), Cereibacter sphaeroides ST16 ST26, salinized collected from An Bien district, Kien Giang province, Vietnam, greenhouse conditions. The experiment followed completely randomized block design with two factors four replications. In particular, reduced percentages P (A) were 0%, 25%, 50%, 75%, 100% P. supplementations C. strains (B) negative control, ST16, mixture both ST26. results showed supplying ST26 insoluble content 10.1–10.6% Fe-P, 10.3–12.2% Ca-P, 12.7–43.1% Al-P increased available 8.33–27.8%, leading total uptake plants increasing 29.4–56.1%. also Na+. growth components rice, greater 26.5–51.0%. Supplying each strain 50–100% recommended. Ultimately, inoculation bacterial allowed reduction percentage recommended but remained still.

Язык: Английский

Процитировано

0
Biogeochemical dynamics and sustainable remediation of mercury in West African water systems DOI
Adewale Adewuyi

Chemosphere, Год журнала: 2025, Номер 379, С. 144436 - 144436

Опубликована: Апрель 26, 2025

Язык: Английский

Процитировано

0
Natural waste-based graphene nanomembranes for improving salt concentrated brackish water desalination: a mini review DOI
Anisa Ratnasari, Muhammad Nazim Lakhan, Abdul Hanan

и другие.

Chemical Papers, Год журнала: 2024, Номер 78(12), С. 6771 - 6785

Опубликована: Июнь 29, 2024

Язык: Английский

Процитировано

3
Impacts of Selenium Supplementation on Soil Mercury Speciation, Soil Properties and Mercury-Resistant Microorganisms and Resistant Genes DOI Creative Commons
Guangpeng Pei, Yuxin Li, Hua Li

и другие.

Agronomy, Год журнала: 2024, Номер 14(9), С. 1928 - 1928

Опубликована: Авг. 28, 2024

Soil mercury (Hg) contamination is a serious threat to local ecology and public health. Exogenous selenium (Se) supplementation can effectively reduce the toxicity of Hg. However, mechanisms affecting changes in soil Hg speciation, properties microbial Hg-resistant system during Se–Hg interaction after exogenous Se are not clear. Therefore, this study, culture experiments were conducted analyze effects different additions on transformation microorganisms resistant genes (mer operon). The results indicated that facilitated from bioavailable (exchangeable carbonate-bound) stable forms (organic material-bound residual), significantly reducing bioavailability. notably decreased electrical conductivity Hg-contaminated soil, but had no significant effect pH, organic matter content, cation exchange capacity or alkaline phosphatase catalase activities. maximum activity levels sucrase urease observed when 1 mg kg−1 was added. inhibited peroxidase ascorbate oxidase activities, thereby alleviating oxidative stress caused by Additionally, activated either decreasing increasing regulatory merD merR, it upregulated cytoplasmic protein gene merP membrane merC, merF merT. This further increased abundance organomercury lyase merB mercuric reductase merA, promoting conversion species Hg⁰. Furthermore, mer operon-containing microorganisms, such as Thiobacillus ferrooxidants, Pseudomonas, Streptomyces Cryptococcus, with addition, explaining role mitigating via supplementation.

Язык: Английский

Процитировано

0