Acetabularia


Acetabularia

▪ alga genus
 genus of one-celled, umbrella-like green algae found in subtropical seas, called the “mermaid's wine glass.” At the top of the tall, slender stalk, 0.5 to 10 cm (0.2 to 3.9 inches) long, is a ring of branches that may be separate or fused to form a cap. Near the base of its stalk, Acetabularia has a large nucleus that divides many times when the alga matures and reproductive structures form; streaming cytoplasm carries the daughter nuclei to the saclike sporangium of each umbrella lobe. Because part of one species can be grafted onto another, Acetabularia has been used to study the relative role of nucleus and cytoplasm in the genetic control of growth and development.

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Universalium. 2010.

Look at other dictionaries:

  • Acetabularia — Scientific classification Domain: Eukaryota Kingdom …   Wikipedia

  • Acetabularia —   [Acetabulum], Schirmchenalge, Gattung der Grünalgen aus der Ordnung Dasycladales. Sie ist mit 21 Arten an den Küsten tropischer und subtropischer Meere verbreitet, zwei davon im Mittelmeer, z. B. Acetabularia mediterranea. Acetabularia hat das… …   Universal-Lexikon

  • acetabularia — alga unicelular de gran tamaño. microfotografía [véase http://www.iqb.es/diccio/a/ac1.htm#acetabularia] Diccionario ilustrado de Términos Médicos.. Alvaro Galiano. 2010 …   Diccionario médico

  • Acetabularia — Acetabularia. См. ацетабулярия. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь.

  • Acetabularia — (Tabularia), Art der Korallinen …   Pierer's Universal-Lexikon

  • Acetabularĭa — Acetabularĭa, s. Algen (Grünalgen) …   Meyers Großes Konversations-Lexikon

  • acetabularia — ● acetabularia ou acétabulaire nom féminin (latin acetabulum, calice) Algue marine verte et calcifiée, qui est parmi les plus grandes formes unicellulaires connues …   Encyclopédie Universelle

  • Acetabularia — Schirmalgen Acetabularia spec. Systematik ohne Rang: Chloroplastida ohne Rang: Chlorophyta …   Deutsch Wikipedia

  • Acetabularia — Acétabulaire (biologie) Pour les articles homonymes, voir Acétabulaire …   Wikipédia en Français

  • Acetabularia —   Acetabularia …   Wikipedia Español


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