Results 81 to 90 of about 9,158 (245)

Modeling and insights into the structural basis of chemical acute aquatic toxicity

open access: yesEcotoxicology and Environmental Safety, 2022
It has become a top global regulatory priority to prevent and control pollution from the release of synthetic chemicals, which continues to affect the aquatic communities. In the past decades, computational tools were largely used to significantly reduce
Ruiqiu Zhang   +5 more
doaj  

Listeria monocytogenes virulence factor Listeriolysin O favors bacterial growth in co-culture with the ciliate Tetrahymena pyriformis, causes protozoan encystment and promotes bacterial survival inside cysts

open access: yesBMC Microbiology, 2010
Background The gram-positive pathogenic bacterium Listeria monocytogenes is widely spread in the nature. L. monocytogenes was reported to be isolated from soil, water, sewage and sludge. Listeriolysin O (LLO) is a L. monocytogenes major virulence factor.
Ermolaeva Svetlana A   +1 more
doaj   +1 more source

Two-dimensional gravitactic bioconvection in a protozoan (tetrahymena pyriformis) culture [PDF]

open access: yes, 2009
Gravitactic bioconvective patterns created by Tetrahymena pyriformis in a Hele-Shaw apparatus were realized and compared with theoretical results. There were found to be two thresholds for bioconvection development: the first indicates the transition ...
Bohatier, Jacques   +9 more
core   +3 more sources

Enzymatic synthesis and decarboxylation of phosphatidylserine in Tetrahymena pyriformis

open access: yesJournal of Lipid Research, 1970
Cell-free extracts of the protozoan Tetrahymena pyriformis have been found to catalyze the following reactions: Phosphatidylethanolamine+L-Serine⇌Phosphatidylserine+EthanolaminePhosphatidylserine→Phosphatidylethanolamine+CO2Net:L-Serine→Ethanolamine ...
EDWARD A. DENNIS, EUGENE P. KENNEDY
doaj  

Nucleus-specific linker histones Hho1 and Mlh1 form distinct protein interactions during growth, starvation and development in Tetrahymena thermophila [PDF]

open access: yes, 2019
Chromatin organization influences most aspects of gene expression regulation. The linker histone H1, along with the core histones, is a key component of eukaryotic chromatin.
Pearlman, Ronald E.   +7 more
core   +1 more source

Model for processive nucleotide and repeat additions by the telomerase [PDF]

open access: yesarXiv, 2007
A model is presented to describe the nucleotide and repeat addition processivity by the telomerase. In the model, the processive nucleotide addition is implemented on the basis of two requirements: One is that stem IV loop stimulates the chemical reaction of nucleotide incorporation, and the other one is the existence of an ssRNA-binding site adjacent ...
arxiv  

A biosensor for cadmium based on bioconvective patterns [PDF]

open access: yes
An 'in vitro' method for monitoring cadmium, one of the most lethal bivalent heavy metals, can detect biologically active levels. The effects of cadmium tend to concentrate in protozoa far above natural levels and therein begin transferring through ...
Matsos, Helen C., Noever, David A.
core   +1 more source

The new approach in an estimation of some parameters of safety of pork transgenic origins

open access: yesRUDN Journal of Agronomy and Animal Industries, 2008
For the first time the new system of a toxicological estimation of safety of pork and products of its processing on a new kind the test-organisms - quail, incubatory quail eggs, and also with use traditional the test-organisms - rats and infusorians ...
N G Khomenets, V I Rodin
doaj  

DETERMINATION OF PHYSICOCHEMICAL, IMMUNOCHEMICAL AND ANTIOXIDANT PROPERTIES, TOXICOLOGICAL AND HYGIENIC ASSESSMENT OF WHEY PROTEIN COMCENTRATE AND ITS HYDROLYSATE

open access: yesFoods and Raw Materials, 2015
Enzymatic hydrolysis of whey proteins is aimed to obtain products with low allergenic potential and high nutritional value. Whey peptides are protein fraction that possesses a variety of physicochemical, immunochemical and bioactive properties ...
Halavach T.M.   +3 more
doaj   +1 more source

Assessment of Heavy Metal Toxicity in Four Species of Freshwater Ciliates (Spirotrichea:Ciliophora) from Delhi, India [PDF]

open access: yes, 2017
The file attached is the Published/publisher’s pdf version of the ...
Abraham, JS   +6 more
core   +1 more source

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