Results 51 to 60 of about 923,312 (393)

A flavin-based extracellular electron transfer mechanism in diverse gram-positive bacteria

open access: yesNature, 2018
Extracellular electron transfer (EET) describes microbial bioelectrochemical processes in which electrons are transferred from the cytosol to the exterior of the cell1.
S. Light   +7 more
semanticscholar   +1 more source

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

open access: yesAgronomy, 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   +5 more
doaj   +1 more source

Destabilization of α-helical structure in solution improves bactericidal activity of antimicrobial peptides: Opposing effects on bacterial and viral targets [PDF]

open access: yes, 2016
We have previously examined the mechanism of antimicrobial peptides on the outer membrane of vaccinia virus. Here we show that the formulation of peptides LL37 and magainin-2B amide in polysorbate 20 (Tween-20™) results in greater reductions in virus ...
Beck, Konrad   +4 more
core   +2 more sources

Bioactive Products From Plant-Endophytic Gram-Positive Bacteria

open access: yesFrontiers in Microbiology, 2019
Endophytes constitute plant-colonizing microorganisms in a mutualistic symbiosis relationship. They are found in most ecosystems reducing plant crops’ biotic and abiotic stressors by stimulating immune responses, excluding plant pathogens by niche ...
M. Ek-Ramos   +5 more
semanticscholar   +1 more source

Bacteria colonies modify their shear and compressive mechanical properties in response to different growth substrates [PDF]

open access: yesarXiv, 2023
Bacteria build multicellular communities termed biofilms, which are often encased in a self-secreted extracellular matrix that gives the community mechanical strength and protection against harsh chemicals. How bacteria assemble distinct multicellular structures in response to different environmental conditions remains incompletely understood. Here, we
arxiv  

Effect of motility on the transport of bacteria populations through a porous medium [PDF]

open access: yesPhys. Rev. Fluids 4, 013102 (2019), 2018
The role of activity on the hydrodynamic dispersion of bacteria in a model porous medium is studied by tracking thousands of bacteria in a microfluidic chip containing randomly placed pillars. We first evaluate the spreading dynamics of two populations of motile and non-motile bacteria injected at different flow rates.
arxiv   +1 more source

Invitro activity of Ciprofloxacin Against Gram-negative Bacteria Isolated from Infected Patients in Indonesia.

open access: yesMakara Journal of Health Research, 2016
Ciprofloxacin the third generation of the quinolone family was claimed very potent against Gram-negative and Grampositive pathogens compared to former generations.
Usman Chatib Warsa
doaj   +1 more source

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

open access: yesJournal 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   +4 more
doaj   +1 more source

In-vitro analysis of potential antibacterial activity of three medicinal plants [PDF]

open access: yes, 2016
The present study was aimed to examine and compare the antibacterial activity of hot methanolic extract of medicinal plants viz. Portulaca oleracea (purslane), Syzygium cumini (L.) (jamun), Psidium guajava (L.) (guava). Antibacterial activity was carried
Chaudhary, Deepika   +3 more
core   +2 more sources

The Tat system of Gram-positive bacteria

open access: yesBiochimica et Biophysica Acta (BBA) - Molecular Cell Research, 2014
The twin-arginine protein translocation (Tat) system has a unique ability to translocate folded and co-factor-containing proteins across lipid bilayers. The Tat pathway is present in bacteria, archaea and in the thylakoid membranes of chloroplasts and, depending on the organism and environmental conditions, it can be deemed important for cell survival,
Vivianne J. Goosens   +2 more
openaire   +3 more sources

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