euglenoid

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euglenoid

(yo͞o-glē′noid)
n.
Any of various single-celled aquatic organisms of the phylum (or division) Euglenophyta, characterized by a grooved cell surface, a reddish eyespot, and undulating movement by means of flagella.
References in periodicals archive ?
Pigment Algal group Chl a all algae Chl b chlorophytes Chl c chrysophytes, diatoms, dinoflagellates [Beta]-carotene all algae Alloxanthin cryptophytes Diatoxantbin diatoms, few chrysophytes Fucoxanthin chrysophytes, diatoms, some dinoflagellates Lutein chlorophytes, euglenoids Zeaxanthin cyanobacteria Oscillaxanthin(*) filamentous cyanobacteria Peridinin dinoflagellates * Includes oscillaxanthin, 4-keto-myxoxanthophyll, and aphanizophyll.
Until now, both of the EF phylogenies (EF-1 alpha tree is shown in [ILLUSTRATION FOR FIGURE 1 OMITTED]) clearly and consistently suggested (a) that three amitochondriate protists, Glugea plecoglossi (microsporidian), Giardia lamblia (diplomonad), and Trichomonas tenax (trichomonad), represent an early-branching eukaryotic group; and that among them, the divergence of Glugea seems to be the earliest (1-5); and (b) that another amitochondrial protist, Entamoeba histolytica, is likely to have diverged after the divergences of some mitochondrion-containing protists, but is not likely to have diverged later than euglenoids, as suggested by the SrRNA tree (6).