Ahnfeltia

Ahnfeltia

 

a genus of red algae. Ahnfeltia is a perennial alga with the form of irregularly branched cords 10–20 cm long and 0.5–1 mm thick, of a dark purple or almost black color. It grows on rocks in the upper levels of the coastal belt, mainly in the cold seas of the northern hemisphere. The most widely distributed is A. plicata, from which a high-quality agar is obtained. Many countries, including the USSR, cultivate A. plicata artificially.

References in periodicals archive ?
A partir de informacion taxonomica mas reciente, basada no solo en caracteres morfologicos, sino que ademas en secuencias genicas, se eliminaron siete especies (i.e., Prionitis lyalli Harvey forma gladiata Setchell, Ahnfeltia gigartinoides J.
En cuanto a Ahnfeltia gigartinoides y Rhodoglossum affine, estas especies habian sido reportadas como nuevas para la costa de Antofagasta (Ramirez, 1982), cuya introduccion desde el hemisferio norte podria haber sido favorecida por eventos de El Nino Southern Oscillation ENSO (i.e., "stepping stone") (Castilla et al., 2005).
Five barcoded species revealed what are likely misapplied names to the Boulder Patch flora; the updated names include Ahnfeltia borealis, Phycodrys fimbriata, Pylaiella washingtoniensis, Rhodomela lycopodioides f.
Les noms a jour sont les suivants : Ahnfeltia borealis, Phycodrys fimbriata, Pylaiella washingtoniensis, Rhodomela lycopodioides f.
In cases where sample sizes are large (e.g., > 20 specimens barcoded in Ahnfeltia borealis D.Milstein & G.W.Saunders, Phycodrys fimbriata [Kuntze] Kylin, and Rhodomela lycopodioides f.
Playa de Barranan, rocas de la izquierda, Arteixo, intermareal medio, sobre Ahnfeltia plicata, 29-08-2003, P.
29TPJ52: Praia das Catedrais, Rinlo, Ribadeo, in termareal medio, sobre Ahnfeltia plicata viviendo sobre roca con arena, 20-09-2005, P.
29TMH83: Playa Ardeleiro, Lira, Carnota, sobre Ahnfeltia plicata, en extraplomo del litoral mediosuperior, costa bastante expuesta, 23-dic-1988, J.
Some preliminary experiments on artificial cultivation of red macroalgae (Ahnfeltia tobuchiensis and Gracilaria verrucosa) were also undertaken (in Tallinn).
Gelling substances were isolated from the following seaweeds [12]: (1) Furcellaria lumbricalis I (Hiiumaa Island in the Baltic Sea), (2) Ahnfeltia plicata and (3) F.
Agarose matrix from Ahnfeltia tobuchiensis: structure levels and microelements content.
Carbopol Ultrez 10 0.15 (carbomer) Methylparaben 0.25 Phase B Fitoderm (Centerchem, Cognis Iberia) 2.00 (squalane) Cetyl alcohol 1.50 Dimethicone 0.50 Cetearyl alcohol (and) ceteareth-20 2.50 Steareth-2 2.10 Laureth-23 1.25 Myristyl myristate 2.25 Propylparaben 1.10 Phytosphingosine 0.20 (Centerchem, Cosmoferm) (phytosphingosine) Phase C Triethanolamine 99% 0.15 Phase D Immucell (Centerchem, Pentapharm) 3.00 (glycoproteins) APT (Centerchem, CIR) 4.00 (water (and) butylene glycol (and) ahnfeltia concinna extract) Phase E Imidazolidinyl urea 0.25 Deionized water 2.00 PROCEDURE: Add all components of phase A to vessel.