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Amibă. Amiba ( lat. Amoebus proteus) face parte din domeniul Eukaryota, regnul Protista, subregnul Protozoa, Clasa Sarcodina. Amiba este una dintre cele mai simple organisme unicelulare (protozoar). Raspândit în apele dulci, statatoare sau pe pamânt umed. Are aspectul unei mese gelatinoase incolore, cu forma corpului mereu schimbătoare.
Mar 28, 2021 · The activities of GTPases regulate the dynamics of cytoskeletal elements, such as actin, microtubules, and the γ-tubulin meshwork. The Ras homologous (Rho) family of small GTPase (including Rac, Cdc42, and Rho) modify the actin cytoskeleton, whereas heterodimers of the GTPases α- and β-tubulin (α/β-tubulin) are the constituents of ...
- Maria Alvarado Kristensson
- 10.3390/cells10040745
- 2021
- Cells. 2021 Apr; 10(4): 745.
Other articles where Tubulinea is discussed: protozoan: Annotated classification: Tubulinea Either naked or testate amoebae. Can produce tubular subcylindrical pseudopodia. Taxa lack centrosomes and flagellated stages. Flabellinea Flat. Lack subcylindrical pseudopodia; lack centrosomes and flagellated stages. Stereomyxida Branched or reticulate networks;
Jul 22, 2018 · All Tubulinea lack cilia at all stages of the life cycle. The Tubulinea include the Tubulinida (Amoeboidea of Cavalier-Smith et al. ), Arcellinida, Copromyxidae, Leptomyxida and Echinamoeba, and both the papers cited above produced identical phylogenies for this class. Leptomyxa, type genus of the Leptomyxida. Note the branched morphology.
Aug 1, 2017 · Tubulinea. Amoebae with tubular or finger-shaped pseudopodia. The major morphological features and some illustrative genera are presented. Euamoebida. Naked amoebae with subcylindrical pseudopodia in locomotion (or the entire cell is monopodial and subcylindrical); without alteration of the locomotive form to a flattened expanded and branched ...
During locomotion most Tubulinea have a roughly cylindrical form or produce numerous cylindrical pseudopods. Each cylinder advances by a single central stream of cytoplasm, granular in appearance, and has no subpseudopodia. This distinguishes them from other amoeboid groups, although in some members this is not the normal type of locomotion.
