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| Gillis, J.. |
| Newman's (1966) method of total root length estimation is modified and adapted to measure total length of filamentous algae in culture (i.c. <i>Polysiphonia</i>). This method makes possible a measurement and an estimation of the growth of the algae in culture without disturbing them. The petri dishes are placed on a 1x1 mm grid and the filament/grid intersections are counted. Total filament length (T) is given by T = Pi N (LxW)/4(LxW), with N = the number of intersections, L = the length and W = width of area in which the thallus is situated. Total filament length of <i>Polysiphonia</i> in culture estimated by the Newman method is compared with camera lucida measurements. The correlation between the results obtained by the 2... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Algae; Measurement; Thallus. |
| Ano: 1987 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3254 |
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| Coppejans, E.; De Cock, L.; Gillis, J.. |
| The authors describe 12 seaweeds that have not been collected previously from the French coasts of the Channel: The Chlorophyceae <i>Rosenvingiella polyrhiza, Ulothrix palusalsa, U. speciosa, Ulva pseudocurvata, U. scandinavica, Urospora bangioides</i>, the Phaeophyceae <i>Isthmoplea spaerophora, Pogotrichum filiforme</i> and <i> Stictyophon</i> cf.<i>soriferus</i> and the Rhodophyceae <i>Aglothamnion roseum, Ceramium shuttleworthianum</i> and <i>Rhodomela confervoides</i>. Ecological data are added to the morphological and anatomical description. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chlorophyceae Phaeophyceae [brown algae] Rhodophyceae ANE; France; Nord; Pas-de-Calais. |
| Ano: 1984 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3317 |
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| Gillis, J.; Coppejans, E.. |
| Aan de hand van materiaal afkomstig van de streek van Boulogne (Pas-de-Calais, Frankrijk) worden de procarpstrukturen en hun ontwikkeling tot gonimoblasten besproken van enkele genera behorend tot de Ceramiales: <i>Aglaothamnion, Callithamnion, Ceramium, Griffithsia, Spermothamnion, Hypoglossum, Polyneura, Polysiphonia</i>. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Plant reproductive structures Ceramiales ANE; France; North. |
| Ano: 1982 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3381 |
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