ORIENTATION OF SWIMMING FLAGELLATES BY SIMULTANEOUSLY ACTING EXTERNAL FACTORS

The directionality of phototaxis combined with gravitaxis was investigated experimentally for populations of the swimming alga Euglena gracilis Klebs. Two irradiances were used: a "weak" irradiance to elicit positive phototaxis and a "strong" irradiance to elicit negative photota...

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Veröffentlicht in:	Journal of phycology 1992, Vol.28 (6), p.816-822
Hauptverfasser:	Kessler, John O., Hill, Nicholas A., Häder, Donat-P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Chlamydomonas nivalis Chlorophyta collisions Euglena gracilis Euglenophyta flagellates Freshwater gravitaxis image analysis phototaxis randomness
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