Opaline

Opaline

Taxobox
name = Opalines
domain = Eukaryota
regnum = Chromalveolata
divisio = Heterokontophyta
classis = Opalinea
subdivision_ranks = order
subdivision = Opalinida
The opalines are a small group of peculiar protists, found as endosymbionts in the gut of frogs and toads. Each cell has two or more nuclei (hundreds in some species), and is covered in short flagella, arranged in rows. As such, they somewhat resemble ciliates, but opalines have only one sort of nucleus, lack mouths, and divide longitudinally (between flagellar rows). "Opalina" and "Protoopalina" are the best known genera.

Opalines were at one point considered possible ancestors of the ciliates, but the similarity between the two appears to be convergent evolution. They are now considered close relatives of the proteromonad flagellates, and the two are included among the heterokonts, though opalines may lack the tripartite hairs that are characteristic of that group.


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  • opaline — [ ɔpalin ] n. f. • 1895; de opale ou de l adj. opalin ♦ Substance vitreuse dont on fait des vases, des ornements. Vase d opaline, en opaline bleue. ♢ Objet (vase, bibelot...) fait de cette matière. Une collection d opalines. ● opaline nom féminin …   Encyclopédie Universelle

  • Opaline — O pal*ine, n. 1. An opaline variety of yellow chalcedony. [Webster 1913 Suppl.] 2. Opal glass. [Webster 1913 Suppl.] 3. An opaline color or expanse. [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

  • Opaline — O pal*ine, a. [Cf. F. opalin.] Of, pertaining to, or like, opal in appearance; having changeable colors like those of the opal. [1913 Webster] …   The Collaborative International Dictionary of English

  • Opaline — f English: a comparatively recent coinage; an elaboration of OPAL (SEE Opal) with the addition of ine, a productive suffix of feminine names …   First names dictionary

  • opaline — [ō′pə lēn΄, ō′pəlīn΄, ō′pəlin] adj. [ OPAL + INE1] of or like opal …   English World dictionary

  • Opaline — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Sur les autres projets Wikimedia : « Opaline », sur le Wiktionnaire (dictionnaire universel) Les opalines : protistes zooflagellés… …   Wikipédia en Français

  • Opaline — Kristallstruktur Ce4+: O2 : Allgemeines Name …   Deutsch Wikipedia

  • opaline — opalescent, opaline iridescent, *prismatic …   New Dictionary of Synonyms

  • Opaline (disambiguation) — Opaline may refer to: Opaline, a group of protists Opaline, an album by Dishwalla Opaline glass, the decorative French glass Opaline silica: an amorphous or cryptocrystalline form of hydrated silica SiO2·nH2O (Opal) Opaline, a colour mutation of… …   Wikipedia

  • Opaline (album) — Opaline Studio album by Dishwalla Released April 23, 2002 Genre …   Wikipedia

  • Opaline (álbum) — Opaline es el tercer álbum de la banda californiana de Dishwalla. Fue lanzado en Estados Unidos el 23 de abril de 2002 bajo el sello de Immergent Records. El single de este trabajo fue la canción Somewhere in the middle que llegó a tener video,… …   Wikipedia Español

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