Results 21 to 30 of about 443,970 (256)

Antimicrobial Effect of Acacia Nilotica on Some Gram Positive and Gram Negative Bacteria

Al-Mustansiriyah Journal of Science, 2018
Acacia nilotica is a plant has an inspiring range of medicinal uses. This plant contributes a number of groups among which are alkaloids, volatile essential oils, phenols and phenolic glycosides, resins, oleosins, steroids, tannins and terpenes, this ...
Faten R. Hameed
doaj   +1 more source

Presence of squalene in gram-positive bacteria [PDF]

Journal of Bacteriology, 1978
The presence of the isoprenoid squalene, synthesized de novo, was demonstrated in 64 out of 73 strains of gram-positive bacteria by thin-layer chromatography. This observation was confirmed by gas-liquid chromatography, chemical reactivity, incorporation of radiolabeled precursor, and by gas chromatography mass spectroscopy of thin-layer chromatography-
B H, Amdur, E I, Szabo, S S, Socransky
openaire   +2 more sources

Isolation of Sponge Bacterial Symbionts from Kodingareng Keke Island-Makassar Indonesia Which is Potential as a Producer of Antimicrobial Compounds

Journal of Pure and Applied Microbiology, 2022
Sponge is an invertebrate animal in the Porifera phylum, which potentially produces bioactive compounds that are known as potential agents in producing antimicrobial compounds.
Herlina Rante, Gemini Alam, Usmar Usmar, Rhezky Awalia Anwar, Alimuddin Ali   +4 more
doaj   +1 more source

The influence of different culture media on Pseudomonas aeruginosa, Escherichia coli, and Staphylococcus aureus biofilm formation

Bioscience Journal, 2023
Microorganisms such as Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus are frequently isolated in samples of urinary, blood, intestinal, and respiratory infections, among others.
Leonardo Quintana Soares Lopes, Pedro Henrique Fortes Guerim, Roberto Christ Vianna Santos, Flavia Kolling Marquezan, Patrícia Kolling Marquezan   +4 more
doaj   +1 more source

Heterogenetic Antigens of Gram-Positive Bacteria [PDF]

Journal of Bacteriology, 1966
Chorpenning, Frank W. (The Ohio State University, Columbus), and Matthew C. Dodd . Heterogenetic antigens of gram-positive bacteria. J. Bacteriol. 91: 1440–1445. 1966.—Soluble antigens obtained by various methods from gram-positive bacteria were used to modify erythrocytes whose ...
F W, Chorpenning, M C, Dodd
openaire   +2 more sources

The human gut microbiome across the life course

FEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero, Basak Bahcivanci, Antonietta Hayhoe, Animesh Acharjee, Ezgi Özkurt   +4 more
wiley   +1 more source

Antibacterial Activity of Colloidal Silver against Gram-Negative and Gram-Positive Bacteria

Antibiotics, 2020
Due to the emergence of antimicrobial resistance, new alternative therapies are needed. Silver was used to treat bacterial infections since antiquity due to its known antimicrobial properties. Here, we aimed to evaluate the in vitro activity of colloidal
Andrea Vila Domínguez, Rafael Ayerbe Algaba, Andrea Miró Canturri, Ángel Rodríguez Villodres, Younes Smani   +4 more
doaj   +1 more source

Variation in the Antimicrobial Activity of Essential Oils from Cultivars of Lavandula angustifolia and L. × intermedia

Agronomy, 2022
The antimicrobial properties of essential oil from Lavandula sp. raise hopes related to its use in phytotherapy. This study aimed to evaluate the antimicrobial activity of essential oils from cultivars of L.
Magdalena Walasek-Janusz, Agnieszka Grzegorczyk, Daniel Zalewski, Anna Malm, Sylwia Gajcy, Robert Gruszecki   +5 more
doaj   +1 more source

Resistance mechanisms of Gram-positive bacteria

International Journal of Medical Microbiology, 2002
The introduction and increasing use of antibiotics for antibacterial therapy has initiated a rapid development and expansion of antibiotic resistance in microorganisms, particularly in human pathogens. Additionally, a shift to an increase in number and severity of Gram-positive infections has been observed the last decades. Common to these pathogens is
openaire   +3 more sources

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source