What's the difference between protista and protiston?
Protista
Definition:
(n. pl.) A provisional group in which are placed a number of low microscopic organisms of doubtful nature. Some are probably plants, others animals.
(pl. ) of Protiston
Example Sentences:
(1) Their eukaryotization was carried out for a long time during the evolution of the low eukaryotes (Protista and Fungi), probably, independently in different phylogenetic lines.
(2) B. galli is assigned to the kingdom Protista, type Rhizopoda, class Lobosea, subclass Gymnamoebia, order Blastocystida.
(3) Protista avoid lysosomal destruction by their resistance to enzyme attack, by surrounding themselves with lysosome-inhibiting vacuoles, by escaping from the phagosomal system into the hyaloplasm and by choosing host cells which lack lysosomes.
(4) These two species of Protista do not form a clade, and P. polycephalum diverged first and D. discoideum second from the line leading to the common ancestor of Plantae, Animalia, and Fungi.
(5) This classification also suggests groupings of phyla into superphyla and form-superphyla, and a broadened kingdom Protista (including green algae, oomycotes and slime molds but excluding red and brown algae).
(6) Recently, we proposed a solution to this problem which involves identifying the largest taxa that are widely recognized to be monophyletic, and naming them using a commonly recognizable prefix and the suffix "protista".
(7) Comparative evidence on the lack of three important organelles (flagella, Golgi-complex, mitochondria) in cells and organisms at the cellular level of organization has been summarized for all the four eukaryotic kingdoms--Protista, Fungi, Plantae and Animalia (Metazoa).
(8) The members of Protista and Fungi, which line in microaerobic or anaerobic conditions, nearly inevitably lose their mitochondria.
(9) The nomenclature used for higher taxonomic categories of protista arose under the influence of the two-kingdom system, and is widely recognized as being evolutionarily misleading.
(10) Possible classifications are discussed, and a summary classification of the living world into kingdoms (Monera, Protista, Fungi, Animalia, Plantae) and phyla is suggested.
(11) If recognition of a single kingdom Protista is no longer tenable, then even the concept of one code per kingdom is not applicable.
(12) The conserved portions of the molecule (1900 nt) have been aligned with corresponding sequences from various eukaryotes, including five protista, one metaphyta, and three metazoa.
(13) The encoded amino acid sequences of the nonmuscle MHCs were highly similar to each other (81% identity) and to the smooth muscle MHC (81-84%), but much less similar to vertebrate skeletal muscle MHCs (38-41%) or to protista nonmuscle MHCs (35-36%).
(14) These three eukaryotic kingdoms apparently shared a common ancestor after the divergence of the two species of Protista, D. discoideum and P. polycephalum.
(15) While sterols and polyunsaturated fatty acids are found exclusively in the higher Protista and multicellular organisms, carotenoids, porphyrins, and quinones are also found in bacteria.
(16) Certain types of intracellular organisms may have arisen initially as forms attached to the cell surface of digestive or other organs, but the intracellular habit appears to have arisen independently in several groups of Protista.
(17) The molecules used were large-subunit rRNAs from Xenopus laevis (Animalia), rice (Plantae), Saccharomyces cerevisiae (Fungi), Dictyostelium discoideum (Protista), and Physarum polycephalum (Protista); and small-subunit rRNAs from maize (Plantae), S. cerevisiae, X. laevis, rat (Animalia), and D. discoideum.
(18) Because the specificity of in situ hybridization is based on nucleotide sequences of ribosomal RNAs, that are constant among species, contrary to morphology of protista or expression of antigens, it should complement conventional staining and immunohistochemical methods, and provide a useful tool for the diagnosis of Pneumocystis carinii.
(19) Intracellular genera are found in all the major groups of Protista, but are particularly common among the dinoflagellates, trypanosomatid zooflagellates and suctorian ciliates; the Sporozoa are nearly all intracellular at some stage of their life, and the Microspora entirely so.
(20) Coccidioides immitis is particularly problematic owing to its contradictory and confusing asexual morphologies, which have caused it to be placed in three fungal classes and the protista.