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Cell morphology and growth characteristics ofPorphyridium aerugineum (Rhodophyta) |
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| Authors: | Bla?ena Pekárková Jan ?marda Franti?ek Hindák |
| Institution: | (1) Institute for Research, Production and Application of Radioisotopes, Rádiová 1, CS-102 27 Prague, Czechoslovakia;(2) Department of Biology, J. E. Purkyn University, Medical Faculty, Obránc míru 10, CS-662 43 Brno, Czechoslovakia;(3) Slovakian Academy of Sciences, Institute of Experimental Biology and Ecology, Dúbravská cesta 14, CS-814 34 Bratislava, Czechoslovakia;(4) Institute of Microbiology, Czechoslovakian Academy of Sciences, Opatovický mlýn, CS-379 81 T ebo , Czechoslovakia |
| Abstract: | Four unialgal strains of the freshwater coccoid red algaPorphyridium aerugineum Geitler were cultivated under laboratory conditions. Cell morphology was studied with the light microscope. The cell surface was examined by means of electron microscopy in order to contribute to the knowledge of polysaccharide sheaths and cytoplasmic membranes. Optimum growth conditions were determined. The range of cell sizes and the average dry masses of single cells were compared in all four strains cultivated at exactly defined temperatures and irradiances. Photosynthetic pigment maxima were measured in intact cells. The red-coloured phycobiliprotein phycoerythrin was not found in any of the examined strains.Dedicated to Prof. DrLothar Geitler on the occasion of the 90th anniversary of his birthday. |
| Keywords: | Algae Rhodophyta Porphyridiales Porphyridium aerugineum Cell morphology surface structure cell size growth parameters photosynthetic pigments |
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