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Laminarase of Euglena gracilis
Science, 1960An enzyme in extracts of the protistan Euglena gracilis splits the polysaccharide laminarin (β-1:3-glucosan). Its optimal p H is 5.0, and it is activated by Mn ++ ions.
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Euglena gracilis Subcellular Fractionation
Subcellular fractionation of Euglena gracilis has been conducted for over 50 years in various forms by numerous research groups. The development of this technique is closely tied to the specific organelle or fraction required for specific purposes.Lucia, Tomečková +2 more
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Identification of a rhodopsin photoreceptor in Euglena gracilis
Biochimica et Biophysica Acta (BBA) - General Subjects, 1992Visual pigments are a class of receptor proteins that absorb light and trigger sensory signals. Retinal-containing proteins are used in nature as photoreceptors mainly in animals vision. Mammalian rhodopsin is the best studied example of a light sensor which couples photon absorption to a cascade of biochemical reactions amplifying the input signal.
GUALTIERI P +3 more
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Ultrastructure of the pellicle ofEuglena gracilis
Tissue and Cell, 2000Deep-etching technique was used to investigate the organization of the pellicle complex of Euglena gracilis. The interpretation of the images was further supported by SEM and TEM investigations. Our results mainly validate data obtained by previous freeze-fracture studies on the E and P faces of the outer cortical membrane.
Vismara, R. +6 more
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Chelatins in euglena gracilis and ochromonas danica
Comparative Biochemistry and Physiology Part C: Comparative Pharmacology, 1985Amino acid analysis was performed on low molecular weight copper binding proteins purified from two species of Protozoa after exposure to a high level of this metal. The compound from Ochromonas is similar to Cu-chelatins. The two peptides from Euglena have a different molecular weight and a very dissimilar amino acid composition. Peptide No.
Piccinni E. +2 more
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Studies on polyamine biosynthesis in Euglena gracilis
Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1979Euglene gracilis (strain Z) was found to contain five polyamines which could be separated by high-pressure cation-exchange chromatography. 1,3-Diaminopropane, putrescine, norspermidine (N-(3-aminopropyl)-1,3-diaminopropane), spermidine and norspermine (N,N'-bis(aminopropyl)-1,3-diaminopropane) were identified. Biosynthesis of putrescine in E.
A, Aleksijevic, J, Grove, F, Schuber
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Euglena Gracilis Case: A Real Biosensor
2003For over 100 years, a major object of photobiological studies has been the unicellular flagellate, Euglena gracilis, an organism well suited for such investigations by its special complement of organelles that may be considered an ancient, yet complete “visual” system.
Bertolini D, Gualtieri P
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Fully Deuterated Euglena gracilis
Science, 1964Euglena gracilis has been grown in 99.4 percent D 2 O on fully deuterated substrates. It is the first organism with distinct animal characteristics in which at least 99 percent of the hydrogen normally present has been replaced by deuterium.
S E, MANDEVILLE, H L, CRESPI, J J, KATZ
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Isolation of nuclei from Euglena gracilis
Biochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1969Abstract A method for the mass isolation of Euglena nuclei is described. Breakage of cells, without damaging the nuclei, is obtained by “loosing” the tough cell envelope by freezing and thawing and Triton treatment or by digestion with pancreatic protease prior to cell breakage.
F, Parenti +3 more
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