Microbial degradation mechanisms, degradation pathways, and genetic engineering for pyrethroids: current knowledge and future perspectives DOI
Jiahui Wu, Hui Peng, Cheng Peng

et al.

Critical Reviews in Toxicology, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 25

Published: Dec. 20, 2024

Pyrethroids are synthetic products derived from natural pyrethroids present in flowers and extensively used as pesticides for agriculture, animal husbandry, household pest control. However, excessive prolonged usage of pyrethroid insecticides can result adverse effects on both non-target target species. Therefore, effective technologies need to be developed remove contamination ensure environmental safety. Microbial remediation various pesticide contaminants is highly practicable, low cost, eco-friendly compared physical chemical methods. Different microbiota screened eliminate or degrade the contaminants. technology utilizes ability treat contaminated areas. Previous studies have mostly focused isolation screening microorganisms biodegradation, well kinetics pathways biodegradation. In order develop bioremediation strategies, further research based molecular biology bioengineering required a comprehensive exploration pyrethroid-degrading microorganisms. To date, microbial degradation underlying mechanisms been rarely reviewed. this critical review encompasses latest knowledge structural properties, bio-toxicity, characterization strains characteristics, intrinsic mechanisms, pathways. The future depends combining advanced gene with traditional methods sustainably It also summarizes factors affecting efficiency concludes prospects, along current challenges limitations.

Language: Английский

Biostimulant and Beyond: Bacillus spp., the Important Plant Growth-Promoting Rhizobacteria (PGPR)-Based Biostimulant for Sustainable Agriculture DOI
Wenli Sun, Mohamad Hesam Shahrajabian

Earth Systems and Environment, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Language: Английский

Citations

3
Curcumin, a Secondary Metabolite, Activates the Defense System by Regulating Water Status, PSII Photochemistry, and Antioxidant Capacity in Lactuca sativa Exposed to Lead and/or Arsenic Stresses DOI Creative Commons
Ayşenur Tofan,

Emirhan Gurkan,

Busra Arikan

et al.

Food and Energy Security, Journal Year: 2025, Volume and Issue: 14(1)

Published: Jan. 1, 2025

ABSTRACT Lead (Pb) and arsenic (As) pollution seriously affect the physiological biochemical processes of plants, reduce agricultural productivity, pose a serious threat to human health. Recently, there has been an increasing interest in studies aimed at mitigating these negative effects heavy metals. Curcumin is important secondary metabolite belonging polyphenol class that provides stress tolerance plants through its metal‐chelating activity. Therefore, our study, curcumin (Cur1; 50 μM Cur2; 100 μM) was applied lettuce ( Lactuca sativa L.) under lead (Pb; and/or (As; stress. It observed relative growth rate plant decreased by 12% Pb 27% As combined conditions (Pb + As) reduced water content 23%. Notably, significant increases parameters were following treatment. Furthermore, exogenous application effectively mitigated detrimental induced heavy‐metal On gas exchange photosynthetic parameters, Cur1 treatment resulted more than twofold increase carbon assimilation conditions. Due exposure, H 2 O increased 25% TBARS twofold. These elevations attenuated with enhanced antioxidant enzyme Compared Cur2 treatments 40% 24% SOD activity, respectively. contributed maintenance redox balance cell activity ascorbate–glutathione (AsA‐GSH) cycle. In conclusion, applications reduction ROS accumulation uptake, photosynthesis efficiency, capacity. findings suggest phenolic compounds like could be promising strategy practices enhance resistance stress, thereby improving productivity.

Language: Английский

Citations

1
Bioremediation of Sulfamethazine Contaminated Environments by Bacillus cereus J2 DOI Open Access
Jiayu Zhang, Yuping Tang, Zhanqing Li

et al.

Water, Journal Year: 2025, Volume and Issue: 17(4), P. 468 - 468

Published: Feb. 7, 2025

Sulfamethazine (SM2), a prevalent sulfonamide antibiotic, is commonly detected as an environmental pollutant. Microbial degradation serves important approach to treating SM2 contamination. In this study, SM2-degrading strain, identified Bacillus cereus J2, was isolated from the activated sludge that had been cultured using exclusive carbon source, which demonstrated exceptional capabilities. Under optimized conditions (30 °C, initial OD600 = 0.1, pH 8), strain J2 completely degraded 50 mg/L within 36 h. The also showed high efficiency for other sulfonamides, such sulfamethoxazole and sulfadiazine, could grow normally in mixed system containing these compounds. growth kinetics with source conformed well Haldane model (R2 0.925), revealing strain’s maximum specific rate determined be 0.066 h−1 (µmax) at concentration of 51.35 mg/L. Seven intermediate products were TQ-LCMS analysis, suggesting three potential pathways SM2. These findings suggest holds significant promise bioremediation SM2-contaminated environments.

Language: Английский

Citations

1
Effects of Bacillus cereus on physiological and biochemical characteristics of wheat under arsenic and cadmium stress: A biological agent to reduce heavy metal stress DOI Creative Commons
Ahmet Direk, Busra Arikan, Ceyda Ozfidan‐Konakci

et al.

Plant Stress, Journal Year: 2024, Volume and Issue: 12, P. 100458 - 100458

Published: April 8, 2024

B. cereus is an important plant growth promoting bacteria. It provides sustainable ways to increase yield as well protection from environmental stress such heavy metals. can both nutrition and act osmoprotection agent. This study investigated seed priming of into T. aestivum seeds under arsenic cadmium stress. Growth parameters, gas exchange, photosynthesis efficiency, antioxidant capacity were measured. As and/or Cd application caused 32%, 18% 24% decrease in the relative rate (RGR) As, Cd, combined (As+Cd) groups, respectively. High amounts reduction photosynthetic parameters detected on applications recovery these increased proline accumulation. The increases Fv/Fm Fv/Fo indicated that system efficiency PSII reaction center recovered. ROS accumulation aestivum. By recovered with activity SOD by 42.8% As+B group 11.80% Cd+B group. With bacteria other enzymes also showed boosted therefore reducing H2O2 content preventing peroxidation. Bacteria AsA-GSH cycle stresses. Therefore, highly effective against metal availability metals and, increasing for plants.

Language: Английский

Citations

7
Novel melatonin‐producing Bacillus safensis EH143 mitigates salt and cadmium stress in soybean DOI Creative Commons
Eun‐Hae Kwon, Arjun Adhikari, Muhammad Imran

et al.

Journal of Pineal Research, Journal Year: 2024, Volume and Issue: 76(4)

Published: May 1, 2024

Abstract Recently, microorganism and exogenous melatonin application has been recognized as an efficient biological tool for enhancing salt tolerance heavy metal detoxification in agriculture crops. Thus, the goal of this study was to isolate evaluate a novel melatonin‐producing plant growth promoting bacterium. With high‐throughput whole genome sequencing, phytohormone measurements, expression profiling, biochemical analysis, we can identify PGPB that produces unravel how it promotes soybean development protects against Cd stress. We synthesis pathway (tryptophan→tryptamine→serotonin melatonin) halotolerant (NaCl > 800 mM) metal‐resistant (Cd >3 rhizobacterium Bacillus safensis EH143 use treat plants subjected NaCl stresses. Results show will highly bioaccumulate metals significantly improve P Ca 2+ uptake K + /Na (93%↑under stress) ratio while reducing (49% under shoots. This activity supported by ion regulator HKT1, MYPB67, calcium sensors CDPK5 CaMK1 which ultimately led increased growth. decreased ABA content shoots 13%, 20%, 34% SA biosynthesis 14.8%, 31%, 48.2% control, salt, Cd‐treated plants, upregulating CYP707A1 CYP707A2 PAL1 ICS, respectively. The along with reduced ASMT3 following treatment EH143; moreover, peroxidase (POD) superoxide dismutase (SOD) 134.5% 39% salt+Cd stress, respectively level total amino acids were observed. Whole‐genome sequencing annotation revealed presence precursor tryptophan synthase (trpA, trpB, trpS), other regulators (Cd: cadA, potassium: KtrA KtrB, phosphate: glpT, calcium: yloB, sodium/glucose cotransporter: sgIT, magnesium transporter: mgtE), enzyme activators (including siderophore transport proteins yfiZ yfhA, SOD sodA, catalase katA1, glutathione KefG) may be involved programming metabolic system. As consequence, contents lipid peroxidation (O 2‐ , MDA, H 2 O ) up 69%, 46%, 29% These findings suggest could potent biofertilizer alleviate toxicity crops serve alternative substitute application.

Language: Английский

Citations

7
Impact of Anthropogenic Activities on Microbial Community Structure in Riverbed Sediments of East Kazakhstan DOI Creative Commons
Olga Muter, Dita Gudrā, Gulzhan Daumova

et al.

Microorganisms, Journal Year: 2024, Volume and Issue: 12(2), P. 246 - 246

Published: Jan. 24, 2024

Heavy metal (HMe) pollution in regions with mining and metallurgy activities is known to be a serious environmental problem worldwide. Hydrological processes contribute the dissemination of HMes (drainage, precipitation, flow rate). The aim present study investigate microbial community structure ten river sediments sampled different East Kazakhstan, which are contaminated HMes. overall degree sediment contamination (Cr, Cu, Zn, Pb, Cd) was assessed using index Zc, ranged from 0.43 21.6, highest Ridder City (Zc = 21.6) Ust-Kamenogorsk City, 0.8 km below dam hydroelectric power station 19.6). tested samples considerably differed organic matter, total carbon, nitrogen, phosphorus content, as well abundance HMe-related functional gene families antibiotic resistance genes. Metagenomic analysis benthic microorganisms showed prevalence Proteobacteria (88.84–97.61%) Actinobacteria (1.21–5.98%) at phylum level all samples. At class level, (21.68–57.48%), Betaproteobacteria (19.38–41.17%), Alphaproteobacteria (10.0–39.78%) were most common among classified reads. To best our knowledge, this first on metagenomic characteristics communities exposed chronic HMe pressure Kazakhstan.

Language: Английский

Citations

4
Lead Toxicity regulation via Protein Degradation and Tetrapyrrole Biosynthesis Pathways in Brassica species: A Comparative Quantitative Analysis of Proteomic Study DOI

Junaid Shehzad,

Andrew Emili, Julian Kwan

et al.

Plant Physiology and Biochemistry, Journal Year: 2024, Volume and Issue: 213, P. 108867 - 108867

Published: June 21, 2024

Language: Английский

Citations

4
Unraveling the degradation mechanism of multiple pyrethroid insecticides by Pseudomonas aeruginosa and its environmental bioremediation potential DOI Creative Commons
Hui Liu, Wenjuan Chen, Zeling Xu

et al.

Environment International, Journal Year: 2024, Volume and Issue: 195, P. 109221 - 109221

Published: Dec. 17, 2024

Language: Английский

Citations

4
Grafting technique accelerates heavy metal phytoextraction by Sedum alfredii and preserves its beneficial effects on soil microorganisms DOI
Zhihao Pang,

Xiangbo Yang,

Hewan Zhang

et al.

Rhizosphere, Journal Year: 2025, Volume and Issue: unknown, P. 101090 - 101090

Published: April 1, 2025

Language: Английский

Citations

0
Relationship between deltamethrin resistance and gut symbiotic bacteria of Aedes albopictus by 16S rDNA sequencing DOI Creative Commons

Yingbo Sun,

Tingting Li, Guofa Zhou

et al.

Parasites & Vectors, Journal Year: 2024, Volume and Issue: 17(1)

Published: Aug. 5, 2024

Aedes albopictus is an important vector for pathogens such as dengue, Zika, and chikungunya viruses. While insecticides the mainstay mosquito control, their widespread excessive use has led to increased resistance in Ae. globally. Gut symbiotic bacteria are believed play a potential role insect physiology, potentially linking mosquitoes' metabolic against insecticides. We investigated of development by comparing gut between deltamethrin-sensitive deltamethrin-resistant populations. Adults were reared from field-collected larvae. Sensitive resistant mosquitoes screened using 0.03% 0.09% deltamethrin, respectively, on basis World Health Organization (WHO) tube bioassay. larvae 5 × LC50 (lethal concentration at 50% mortality) 20 respectively. Laboratory strain adults used controls. The DNA samples these extracted magnetic bead method. Bacterial 16S rDNA was sequenced BGISEQ isolated cultured microorganisms adult four different media: Luria Bertani (LB), brain heart infusion (BHI), nutrient agar (NA), salmonella shigella (SS). Sequencing revealed significantly higher microbial diversity field-resistant compared with field-sensitive laboratory-sensitive (P < 0.01). Conversely, microorganism lower At species level, 25 12 bacterial field adults, abundance Flavobacterium spp., Gemmobacter Dysgonomonas spp. sensitive (all P 0.05). Furthermore, Pantoea Aeromonas dominant differentially occurring also larval mosquitoes. These findings suggest that commensal may distinct roles deltamethrin resistance. This study provides empirical further exploration mechanisms underlying insecticide resistance, opening new prospect control strategies.

Language: Английский

Citations

1