Pellicle Ultrastructure of SomeEuglenaSpecies
نویسندگان
چکیده
منابع مشابه
Ultrastructure of Mucocysts and Pellicle of Tetrahymena Pyriformis
Tetrahymena pyriformis GL was fixed with glutaraldehyde and/or OsO(4) for a study of cytoplasmic ultrastructure. Many small vacuoles 0.05 to 0.5 micro in diameter were found to contain each a dense particle enveloped by a limiting membrane. This membrane is continuous with the membrane of the vacuole. The particles are irregular in shape and size, but similar to the mucocysts in the appearance ...
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The pellicle complex of E. gracilis is composed of the cell membrane, the ridge and groove with the notch, four fibrils, and the subpellicular ER. The cell membrane is of unit membrane configuration and covers the outside of the cell, the cytostome, the gullet, and the reservoir. The notch of the pellicle complex has always a close topographic relationship to two particular fibrils, as well as ...
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Saliva contacting with solid surfaces in the oral cavity forms a coat termed the pellicle. However, its formation is not fully understood. Although indications for the existence of supramolecular pellicle precursors have been reported, the possible relationship between them and pellicle formation is unclear. This study investigates the ability of supramolecular precursors to form the pellicle v...
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The aim was to analyze the protective effects of titanium, zirconium and hafnium tetrafluorides on erosion of pellicle-free and pellicle-covered enamel and dentine in vitro. Eight groups of 20 specimens each of bovine enamel and bovine dentine were prepared. Half the specimens in each group were immersed in human saliva for 2 h for pellicle formation. Specimens were then left untreated (control...
متن کاملProtective effect of different tetrafluorides on erosion of pellicle-free and pellicle-covered enamel and dentine.
The aim was to analyze the protective effects of titanium, zirconium and hafnium tetrafluorides on erosion of pellicle-free and pellicle-covered enamel and dentine in vitro. Eight groups of 20 specimens each of bovine enamel and bovine dentine were prepared. Half the specimens in each group were immersed in human saliva for 2 h for pellicle formation. Specimens were then left untreated (control...
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ژورنال
عنوان ژورنال: Caryologia
سال: 1981
ISSN: 0008-7114,2165-5391
DOI: 10.1080/00087114.1981.10796906