Results 1 to 10 of about 135,110 (296)

Auranofin and Baicalin Inhibit Clostridioides difficile Growth and Sporulation: An In vitro Study

open access: yesJournal of Pure and Applied Microbiology, 2022
Clostridioides difficile is a principal cause of hospital-acquired gastrointestinal infections, with sporulation and toxin production being key determinants in the disease pathogenesis.
Lamiaa A. Madkour
doaj   +1 more source

Visualization of SpoVAEa Protein Dynamics in Dormant Spores of Bacillus cereus and Dynamic Changes in Their Germinosomes and SpoVAEa during Germination

open access: yesMicrobiology Spectrum, 2022
Bacillus cereus spores, like most Bacillus spores, can survive for years and germinate when their surroundings become suitable, and germination proteins play an important role in the initiation of germination.
Yan Wang   +5 more
doaj   +1 more source

Short Communication: Efficacy of Two Commercial Disinfectants on Paenibacillus larvae Spores

open access: yesFrontiers in Veterinary Science, 2022
Paenibacillus larvae is a spore-forming bacterium causing American foulbrood (AFB) in honey bee larvae. The remains of a diseased larva contains billions of extremely resilient P. larvae spores viable for decades.
Joseph Kiriamburi   +4 more
doaj   +1 more source

Ebselen Not Only Inhibits Clostridioides difficile Toxins but Displays Redox-Associated Cellular Killing

open access: yesMicrobiology Spectrum, 2021
Ebselen, a reactive organoselenium compound, was shown to inhibit toxins TcdA and TcdB by covalently binding to their cysteine protease domains. It was suggested that ebselen lacked antimicrobial activity against Clostridioides difficile.
Ravi K. R. Marreddy   +4 more
doaj   +1 more source

Inactivation Effect of Thymoquinone on Alicyclobacillus acidoterrestris Vegetative Cells, Spores, and Biofilms

open access: yesFrontiers in Microbiology, 2021
Alicyclobacillus acidoterrestris (A. acidoterrestris), a spore-forming bacterium, has become a main challenge and concern for the juices and acid beverage industry across the world due to its thermo-acidophilic characteristic. Thymoquinone (TQ) is one of
Qiuxia Fan   +15 more
doaj   +1 more source

UV-B absorbing pigments in spores: biochemical responses to shade in a high-latitude birch forest and implications for sporopollenin-based proxies of past environmental change [PDF]

open access: yesPolar Research, 2011
Current attempts to develop a proxy for Earth's surface ultraviolet-B (UV-B) flux focus on the organic chemistry of pollen and spores because their constituent biopolymer, sporopollenin, contains UV-B absorbing pigments whose relative abundance may ...
Terry V. Callaghan   +8 more
doaj   +1 more source

Food and water security issues in Russia II: Water security in general population of Russian Arctic, Siberia and Far East, 2000–2011 [PDF]

open access: yesInternational Journal of Circumpolar Health, 2013
Background . Poor state of water supply systems, shortage of water purification facilities and disinfection systems, low quality of drinking water generally in Russia and particularly in the regions of the Russian Arctic, Siberia and Far East have been ...
Alexey A. Dudarev   +9 more
doaj   +1 more source

Extent of the northern Baltic Sea during the Early Palaeozoic Era - new evidence from Ostrobothnia, western Finland [PDF]

open access: yesBulletin of the Geological Society of Finland, 1998
This study reports new evidence of the extent of the northern Baltic Sea during the Cambrian and Ordovician periods. A drillcore (DC304) from the Lappajärvi impact crater, western Finland, and erratics from the surrounding area were studied for ...
A. Uutela
doaj   +1 more source

Morphological and taxonomical studies in Blechnum (Blechnaceae-Pteridophyta): B. tabulare and B. magellanicum

open access: yesAnales del Jardín Botánico de Madrid, 2008
Specimens of B. tabulare and B. magellanicum from their whole geographical area were studied, and taxa were treated as different species. The following characters were analyzed: rhizomes, rhizomatic scales, stipes, division of dimorphic laminae, outline,
Cristina H. Rolleri   +2 more
doaj   +1 more source

A revised stratigraphy for the Palaeocene Agatdalen flora (Nuussuaq Peninsula, western Greenland): correlating fossiliferous outcrops, macrofossils, and palynological samples from phosphoritic nodules

open access: yesActa Palaeobotanica, 2016
The Cretaceous and Palaeogene floras of western Greenland that were initially described as part of the classical work “Flora fossilis arctica” by Oswald Heer in the 19th century are currently under revision.
Grímsson Friđgeir   +3 more
doaj   +1 more source

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