Results 71 to 80 of about 5,263 (211)

PLASMA AND PHAGOSOME MEMBRANES OF ACANTHAMOEBA CASTELLANII [PDF]

The Journal of Cell Biology, 1971
Plasma membranes were isolated from the ameba Acanthamoeba castellanii by low-speed velocity centrifugation followed by equilibrium centrifugation in a sucrose gradient. The isolated membranes had a high ratio of sterol to phospholipid (0.98 moles/mole) and of phospholipid to protein (0.43 mg/mg). The plasma membranes had very low concentrations of DNA,
A G, Ulsamer, P L, Wright, M G, Wetzel, E D, Korn   +3 more
openaire   +2 more sources

In Vitro Study on the Efficacy of Ziziphus vulgaris L. and Camellia sinensis (L.) Kuntze Extracts for Controlling Varroa destructor (Acari: Varroidae) in Apis mellifera (Hym.: Apidae)

Veterinary Medicine and Science, Volume 11, Issue 5, September 2025.
Extracts of Ziziphus vulgaris and Camellia sinensis applied in wooden cages increase Varroa destructor mortality (5–25 µL/L air) while minimizing Apis mellifera harm, offering a sustainable mite control method. ABSTRACT Background Ziziphus vulgaris L.
Salim Ojagh, Farnaz Malekifard, Mohammad Yakhchali   +2 more
wiley   +1 more source

Mitochondrial proteome of a unicellular eukaryote (Acanthamoeba castellanii, supergroup Amoebozoa)

The datasets presented here are: (1) Mitochondrial Genome-Encoded Proteins Identified by Tandem Mass Spectrometry (MS/MS) of Purified Acanthamoeba castellanii Mitochondria. (2) Nuclear-Genome Encoded Proteins Identified by Tandem Mass Spectrometry (MS/MS)
Gray, Michael W., Chisholm, Kenneth A., Gawryluk, Ryan M.R., Pinto, Devanand M.   +3 more
core   +2 more sources

Metabolic Profile Associated With Encystation in Acanthamoeba

Journal of Eukaryotic Microbiology, Volume 72, Issue 5, September/October 2025.
ABSTRACT The genus Acanthamoeba includes widespread protozoa that can cause severe infections in humans. Their ability to form resistant cysts within infected tissues complicates treatment, making it essential to understand the encystation process for developing effective therapeutic strategies.
Cecília Cirelli, Isabela Aurora Rodrigues, Jéssica Gardone Vitório, Filipe Fideles Duarte‐Andrade, Gisele André Baptista Canuto, Leiliane Coelho André, Juliano Simões de Toledo, Ana Paula Fernandes, Adriana Oliveira Costa   +8 more
wiley   +1 more source

Essential Role for an M17 Leucine Aminopeptidase in Encystation of Acanthamoeba castellanii. [PDF]

PLoS ONE, 2015
Encystation of Acanthamoeba leads to the formation of resilient cysts from vegetative trophozoites. This process is essential for parasite survival under unfavorable conditions such as starvation, low temperatures, and exposure to biocides.
Yu-Ran Lee, Byoung-Kuk Na, Eun-Kyung Moon, Su-Min Song, So-Young Joo, Hyun-Hee Kong, Youn-Kyoung Goo, Dong-Il Chung, Yeonchul Hong   +8 more
doaj   +1 more source

Seasonal Host Shifts for Legionella Within an Industrial Water‐Cooling System

Environmental Microbiology Reports, Volume 17, Issue 4, August 2025.
Taxonomic profiling for Legionella (the causative agent of Legionnaires' disease) and protist hosts within a water cooling tower showed seasonal peaks for Legionella that were associated with taxonomic shifts in the protist community. Legionella frequency was tracked using amplicon sequencing (blue line) and serogroup profiling (red line).
Suzanne Crull, Emlyn Hammer, Allison E. Mann, Lauren M. O'Connell, Ashlyn Soule, Elizabeth Griffith, Thomas Blouin, Robin L. Brigmon, Vincent P. Richards   +8 more
wiley   +1 more source

Acanthamoeba-Bacteria-Bacteriophages Interactions

, 2020
In nature, bacteria are frequently exposed to predation by bacteriophages and protozoa. These two microbial groups were described as the main causes of bacterial mortality. Yet, bacteria were found to co-exist and thrive in the presence of both predators.
Wafaa Alrashidi (9119047)
core   +1 more source

Ultrasensitive and rapid diagnostic tool for detection of Acanthamoeba castellanii

, 2023
Acanthamoeba keratitis is a devastating infectious disease of the cornea caused by an opportunistic amoeba, Acanthamoeba castellanii. It is poorly recognized, and diagnostic delays can lead to irreversible damage to the vision.
Parkkila, Seppo, Susanna Haapanen, Maarit S. Patrikainen, Haapanen, Susanna, Seppo Parkkila, Patrikainen, Maarit S.   +5 more
core   +1 more source

Adhesion forces and mechanics in mannose-mediated acanthamoeba interactions. [PDF]

PLoS ONE, 2017
The human pathogenic amoeba Acanthamoeba castellanii (A. castellanii) causes severe diseases, including acanthamoeba keratitis and encephalitis. Pathogenicity arises from the killing of target-cells by an extracellular killing mechanism, where the ...
Steven Huth, Julia F Reverey, Matthias Leippe, Christine Selhuber-Unkel   +3 more
doaj   +1 more source

Luminal Phospholipase D Attacks Bacterial Membranes in Dictyostelium discoideum Phagosomes

Molecular Microbiology, Volume 124, Issue 1, Page 54-65, July 2025.
This study shows that PldX, a luminal Phospholipase D, is necessary for the efficient destruction of ingested Klebsiella pneumoniae bacteria in Dictyostelium discoideum phagosomes. PldX and the AlyL lysozyme together attack the bacterial membrane and permeabilize it. To date, the molecular substrate of PldX remains to be determined. ABSTRACT Phagocytic
Otmane Lamrabet, Raphael Munoz‐Ruiz, Imen Ayadi, Alixia Bourbon, Erwann Pain, Joseph Oddy, Pierre Cosson   +6 more
wiley   +1 more source