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Role of gene PA2798 on biofilm formation and virulence factors production of Pseudomonas aeruginosa.

Bacterial biofilm formation plays a critical role in the pathogenicity and virulence of Pseudomonas aeruginosa posing a significant threat t … in MICs for gentamicin, amikacin, tobramycin and netilmicin, and was accompanied by reduced biofilm biomass and virulence factor production in PAO1∆PA2798. Moreover, compromised cellular integrity, reduced bacterial activity, and impaired bacterial motility were observed in PAO1∆PA2798. Simultaneously, mice infected with this mutant strain were observed w …

Evaluating the Phytohormone Proficiencies of Multifarious Bacillus rugosus for Growth Promotion in Arachis hypogaea (L.).

The application of Plant Growth-Promoting Rhizobacteria (PGPR) in agriculture is increasingly emphasized as a sustainable alternative to haz … B1 as a PGPR, showcasing multifaceted PGP traits that significantly enhanced root and shoot growth, biomass, and chlorophyll content in Arachis hypogaea L., demonstrating its potential as a biofertilizer for sustainable agriculture.

Effects of abattoir sludge on cyanide status of cassava effluent and cassava effluent contaminated soil.

Cassava cyanide effluent arising from cassava processing contaminate soil, leading to increased concentration of cyanide in soil and water, … f soil used for habitat and agricultural soil. Therefore, abattoir sludge shows a promising greener biomass of choice for soil revitalizations and remediation of cyanide.

Diverse plant growth-promoting bacteria as microsymbionts in nodules of Leucaena leucocephala.

This study characterized 18 endophytic bacterial isolates in association with the root nodules of Leucaena leucocephala through phenotypic a … . leucocephala showed significant improvements in growth parameters such as shoot and root lengths, biomass, and nodulation, particularly with the strain Rhizobium sp. SoL9 (T3). Inoculation also enhanced soil properties, increasing nutrient availability and microbial populations. These endophytic bacterial isolates from L. leucocephala root nodules displ …

Toward essential oil stewardship: strain-resolved evaluation of thyme oil activity against Pseudomonas aeruginosa.

The rising interest in essential oils (EOs) as antimicrobial agents demands evaluation frameworks that provide structured, reproducible asse … adication. Notably, strains with low metabolic activity and sparse cell populations-but high matrix biomass-exhibited reduced responsiveness to TEO, while susceptibility to PHMB was more consistent, though not absolute. These findings highlight the critical influence of both microbial phenotype and agent formulation on antimicrobial outcomes. Rather than …

Разочарование: моделирование разрушительных кумулятивных последствий отдельных факторов экологического стресса и гибели людей в результате колонизации в Бурард Инлетт, Канада.

В настоящем документе мы представляем совместный, междисциплинарный исследовательский проект, в рамках которого изучаются кумулятивные экологические и антропогенные последствия колонизации для экосистемы, известной в настоящее время как Британская Колумбия, Канада. Данное исследование проводится по просьбе и под руководством г-на Шлюйльвута. Опираясь на археологию, историческую экологию, исторические/архивные рекорды и научные науки, мы используем Экопат с экосимом для моделирования отдельных экологических стрессов и разрушительных потерь жизни людей в результате колонизации в 1750-1980 годах.

Совпадение в аннотации оригинала
In this paper we present a collaborative, transdisciplinary research project that explores the cumulative ecological and human impacts of co … ults show dramatic change in the ecosystem state following these events, with significant losses in biomass and degradation of ecosystem health during the 230 years that we assess. We demonstrate the ecological impact that smallpox had through loss of both human life and Indigenous stewardship. This research sits within the palaeoenvironmental, palaeoecol …

Compositional changes and physiological activities of fresh ginseng extracts prepared at various temperatures in subcritical water.

BACKGROUND: Subcritical water (SW) is regarded as an effective conversion technology for lignocellulosic biomass. The effect of SW on ginseng are limited to evaluate the ginsenoside composition of red ginseng, and there is little information on the effects of SW on fresh ginseng. METHODS: The general characteristics of ginseng extracts (GE) prepared with SW were evaluated in terms of brix, reducing sugar and residual solid content, and compositions of GE was estimated using chromatography. For utilization of GE as a bioactive food, the ginsenoside composition, antioxidative activity, angioten…

Antibiofilm activity of Prevotella species from the cystic fibrosis lung microbiota against Pseudomonas aeruginosa.

It is increasingly recognized that interspecies interactions may modulate the pathogenicity of Pseudomonas aeruginosa during chronic lung in … la intermedia and Prevotella nigrescens, which caused a reduction of up to 90% in the total biofilm biomass of several P. aeruginosa isolates from pwCF. In addition, a strain-specific effect of P. nigrescens on the ability of P. aeruginosa to produce proteases and pyocyanin was observed, with significant alterations in the levels of these virulence factor …

Enhanced Antimalarial Activity of Extracts of Artemisia annua L. Achieved with Aqueous Solutions of Salicylate Salts and Ionic Liquids.

Artemisinin, a drug used to treat malaria, can be chemically synthesized or extracted from Artemisia annua L. However, the extraction method for artemisinin from biomass needs to be more sustainable while maintaining or enhancing its bioactivity. This work investigates the use of aqueous solutions of salts and ionic liquids with hydrotropic properties as alternative solvents for artemisinin extraction from Artemisia annua L. Among the investigated solvents, aqueous solutions of cholinium salicylate and sodium salicylate were found to be the most promising. To optimize the extraction process, a…

Antibiotic Resistance, Biofilm Formation, and Persistent Phenotype of Klebsiella pneumoniae in a Vietnamese Tertiary Hospital: A Focus on Amikacin.

Klebsiella pneumoniae stands out as a major opportunistic pathogen responsible for both hospital- and community-acquired bacterial infection … mine amikacin persistence. Biofilm forming capacity on 96-well polystyrene surfaces was assessed by biomass and viable bacteria. The prevalence of resistance was notably high across most antibiotics, with 64.8% classified as carbapenem-resistant K. pneumoniae and 81.4% as multidrug resistant. Amikacin, however, exhibited a relatively low rate of resistanc …

Nanotechnology in wood science: Innovations and applications.

Application of nanomaterials is gaining tremendous interest in the field of wood science and technology for value addition and enhancing per … als with improved properties. Nanocellulose and lignin nanoparticles derived/synthesized from woody biomass can enhance the mechanical properties such as strength and stiffness and impart additional functionalities to wood-based products. Cellulose nano-fibres/crystals find application in wide areas of materials science like reinforcement for composites. …

Melatonin Increases Root Cell Wall Phosphorus Reutilization via an NO Dependent Pathway in Rice (Oryza sativa).

Melatonin (MT) has been implicated in the plant response to phosphorus (P) stress; however, the precise molecular mechanisms involved remain … lication of MT significantly improved rice tolerance to P deficiency, as evidenced by the increased biomass and reduced proportion of roots to shoots under P-deficient conditions. MT application also mitigated the decrease in P content regardless in both the roots and shoots. Mechanistically, MT accelerated the reutilization of P, particularly in the root …

Machine learning-based soil quality assessment for enhancing environmental monitoring in iron ore mining-impacted ecosystems.

In November 2015, a catastrophic rupture of the Fundão dam in Mariana (Brazil), resulted in extensive socio-economic and environmental reper … wer levels to simplify the tree structure. In this model, Cation Exchange Capacity (CEC), Microbial Biomass Carbon (MBC), Base Saturation (BS), and Effective Cation Exchange Capacity (eCEC) emerged as the most pivotal factors influencing model fitting. This model achieved an accuracy score of 92% during training and 93% during testing for determining stag …

Siderite and vivianite as energy sources for the extreme acidophilic bacterium Acidithiobacillus ferrooxidans in the context of mars habitability.

Past and present habitability of Mars have been intensely studied in the context of the search for signals of life. Despite the harsh condit … , A. ferrooxidans was able to fix carbon directly from the carbonate ion released from siderite for biomass production, indicating that it could be able to colonize subsurface environments with little or no contact with an atmosphere. These previously unexplored abilities broaden our knowledge on the variety of minerals able to sustain life. In the contex …

Uranium Repartitioning during Microbial Driven Reductive Transformation of U(VI)-Sorbed Schwertmannite and Jarosite.

This study exposes U(VI)-sorbed schwertmannite and jarosite to biotic reductive incubations under field-relevant conditions and examines the … d and mostly repartitioned to monomeric U(VI)/U(IV) complexes by carboxyl and phosphoryl ligands on biomass or organic substances. Furthermore, the microbial data suggest that these processes were likely driven by the consecutive developments of fermentative and sulfate- and iron- reducing microbial communities. In contrast, the U(VI)-sorbed jarosite only …

Effects of industrial solid waste on the generation of PCDD/Fs, dl-PCBs and PAHs tuned by waste pseudo-components during engineering co-combustion.

Co-combustion of municipal solid waste (MSW) with industrial solid waste (ISW) is becoming prevailing. But its effects on generation of poly … contaminants, a pseudo-component matrix model was innovatively incorporated, with nine plastic and biomass pseudo-components quantitatively extracted. Compared to raw MSW incineration, co-combustion generally increased generation of 17 PCDD/Fs and 12 dl-PCBs in fly ash up to six-fold, with the highest TEQ concentrations of 843 ng/kg and 68.1 ng/kg, respe …

N-substituted pyrrole carboxylic acid derivatives from 3,4-dihydroxyketons.

Since the chemical industry is largely dependent on petrol-based feedstocks, new sources are required for a sustainable industry. Conversion of biomass to high-value compounds provides an environmentally friendly and sustainable approach, which might be a potential solution to reduce petrol-based starting materials. This also applies for N-heterocycles, which are a common structural motif in natural products, pharmaceuticals and functional polymers. The synthesis of pyrroles is a well-studied and established process. Nevertheless, most routes described are not in line with the principles of gr…

Contribution of plastic solid components to volatile organic compounds formation during plastics combustion.

The combustion of plastic waste releases volatile organic compounds (VOCs) that are harmful to human health. However, information on the mic … atics released from PET and PBAT lagged other VOCs compared that of PP and PE. However, compared to biomass thermal conversion, combustion of plastics releases fewer aromatics and nitrogenous compounds. Collectively, this work shows that the formation mechanisms of VOCs contributed by the solid components during plastic combustion are similar for PET and …

Preparation and characterization on the eco-friendly corn starch based adhesive of with salient water resistance, mildew resistance.

Starch adhesive is a commonly used bonding glue that is sustainable, formaldehyde-free and biodegradable. However, there are obviously some … ility whereas cured resin exhibited mildew resistance. The developed adhesive is a simple and green biomass wood adhesive.

Synthesis and characterization of aluminosilicate and zinc silicate from sugarcane bagasse fly ash for adsorption of aflatoxin B1.

Sugarcane bagasse fly ash, a residual product resulting from the incineration of biomass to generate power and steam, is rich in SiO2. Sodium silicate is a fundamental material for synthesizing highly porous silica-based adsorbents to serve circular practices. Aflatoxin B1 (AFB1), a significant contaminant in animal feeds, necessitates the integration of adsorbents, crucial for reducing aflatoxin concentrations during the digestive process of animals. This research aimed to synthesize aluminosilicate and zinc silicate derived from sodium silicate based on sugarcane bagasse fly ash, each charac…