Results 41 to 50 of about 4,837 (168)

The Role of the [2Fe‐2S] Cluster of Escherichia coli IscR in Responding to Redox‐Cycling Agents

open access: yesMolecular Microbiology, Volume 124, Issue 5, Page 433-448, November 2025.
Redox cycling agents like phenazine methosulfate (PMS) are known for upsetting cellular redox balance. Here we describe how PMS leads to upregulation of the ISC and SUF Fe‐S cluster biogenesis pathways in Escherichia coli when PMS oxidizes the [2Fe‐2S]1+ cluster of the transcription factor IscR, thereby derepressing the operon encoding ISC and, when a ...
Rajdeep Banerjee   +3 more
wiley   +1 more source

Investigations on in vitro survival and virulence of T. pallidum under aerobiosis. [PDF]

open access: yesSexually Transmitted Infections, 1975
Motility of pathogenic T. pallidum was maintained in aerobic in vitro cultures for several weeks using a special medium. The latter consisted of McCoy's 5a medium supplemented with glutathione, sodium pyruvate, HEPES buffer, gentamycin (garamycin), and fetal calf serum. The virulence of the organisms was lost in 5 to 6 days.
openaire   +2 more sources

Microbial food fermentation: An extraordinary approach to improve food quality employing beneficial microbes

open access: yesFood Biomacromolecules, Volume 2, Issue 3, Page 340-352, September 2025.
Abstract Fermentation is a biochemical process that includes the conversion of complex organic substances into different food products and beverages using microbial enzymes. The purpose of microbial fermentation is to improve the quality and safety of food.
Rameen Atique   +12 more
wiley   +1 more source

Effect of Chemical Additives on Maize Silage Fermentation and Aerobic Stability and on Preference and Short‐Term Intake by Goats

open access: yesGrass and Forage Science, Volume 80, Issue 3, July-September 2025.
ABSTRACT This study determined the effects of a mixture of sodium benzoate and potassium sorbate (SBPS; 2 L/t fresh matter (FM)) and a formic acid‐based mixture (FASF; 3 L/t FM) on maize silage fermentation, aerobic stability, and short‐term feed intake by goats. Whole‐crop maize harvested at 280 g/kg dry matter (DM) was untreated (CON) or treated with
Dave Brüning   +3 more
wiley   +1 more source

Antimicrobial Susceptibility Testing in Pseudomonas aeruginosa Biofilms: One Step Closer to a Standardized Method

open access: yesAntibiotics, 2020
The ability of Pseudomonas aeruginosa to form biofilm during a long-term infection makes it difficult to treat patients correctly. The current clinical antimicrobial susceptibility testing methods are based on the study of planktonic strains.
Carmen Lozano   +3 more
doaj   +1 more source

Heat Stress Response in Ruditapes Decussatus: Transcriptional Regulation of Key Pathways and Novel SNPs in Antioxidant Genes

open access: yesEcology and Evolution, Volume 15, Issue 6, June 2025.
Climate change is known to affect all levels of biology, setting at risk ecological balance. Among other organisms' groups, aquatic inhabitants, and particularly bivalves, are expected to be influenced to a greater extent owing to their inability to move to more mild temperatures.
Dimitrios K. Papadopoulos   +2 more
wiley   +1 more source

Transition of an Anaerobic Escherichia coli Culture to Aerobiosis: Balancing mRNA and Protein Levels in a Demand-Directed Dynamic Flux Balance Analysis. [PDF]

open access: yesPLoS ONE, 2016
The facultative anaerobic bacterium Escherichia coli is frequently forced to adapt to changing environmental conditions. One important determinant for metabolism is the availability of oxygen allowing a more efficient metabolism.
Joachim von Wulffen   +3 more
doaj   +1 more source

Antibacterial activity and antioxidant capacity of dairy kefir beverages

open access: yesInternational Journal of Dairy Technology, Volume 78, Issue 1, February 2025.
Kefir beverages based on dairy substrates show antioxidant and antibacterial properties against emerging bacteria Cronobacter sakazakii and Escherichia coli. Kefir traditionally is based on pasteurised milk and the use of other substrates is unusual.
Diego Aguirre‐Ramírez   +5 more
wiley   +1 more source

INDUCTION OF ANAEROBIC PROCESSES IN BAIKAL ENDEMICS EULIMNOGAMMARUS VITTATUS (DYB.) AND E. VERRUCOSUS (DYB.) (AMPHIPODA, CRUSTACEA) [PDF]

open access: yesJournal of Stress Physiology & Biochemistry, 2006
The data confirming the ability of Baikalian endemic species Eulimnogammarus vittatus (Dyb.) and E. verrucosus (Dyb.) to activate anaerobic glycolysis under hypoxia are presented. The differences in the degree and the rate of lactic acid accumulation and
Timofeyev M.A.   +5 more
doaj  

Mitochondrial AOX1a and an H2O2 feed‐forward signalling loop regulate flooding tolerance in rice

open access: yesPlant Biotechnology Journal, Volume 23, Issue 2, Page 395-411, February 2025.
Summary Flooding is a widespread natural disaster that causes tremendous yield losses of global food production. Rice is the only cereal capable of growing in aquatic environments. Direct seeding by which seedlings grow underwater is an important cultivation method for reducing rice production cost.
Cong Danh Nguyen   +7 more
wiley   +1 more source

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