caa a22 4500 475783360 CHVBK 20180406123651.0 cr unu---uuuuu 170329e20000201xx s 000 0 eng 10.1023/A:1008189230953 doi (NATIONALLICENCE)springer-10.1023/A:1008189230953 Influence of chlorophyll concentrations on the reliability of measurements with an oxygen electrode when studying photosynthetic efficiency in bioassays using microalgae [Elektronische Daten] [Roman Danilov, Nils Ekelund] Euglena gracilis and Chlamydomonas reinhardtii were used as model organisms to establish the best conditions for studying photosynthetic efficiency using the Light Pipette - experimental system, which enables sensitive detection of changes in oxygen evolution/consumption and an easy collection and digitalisation of data. Chlorophyll concentrations of 0.005, 0.025, 0.050 and 0.075 mgmL-1 were investigated using different light regimes. Cultures of E. gracilis at the same chlorophyll concentration absorbed more light(measured at 580 μmol m-2 s-1) than those of C. reinhardtii. Cell density had a considerable effect on the reliability of measurements. Chlorophyll concentrations between 0.025 mgChl ml-1 and 0.050 mgChlml-1 can be recommended when applying the Light Pipette system in bioassays using microalgae. Kluwer Academic Publishers, 2000 Euglena gracilis nationallicence Chlamydomonas reinhardtii nationallicence photosynthesis nationallicence oxygen electrode nationallicence Light Pipette nationallicence bioassay nationallicence chlorophyll concentration nationallicence algae nationallicence Danilov Roman Department of Applied Science, Mid Sweden University, 871 88, Härnösand, Sweden aut Ekelund Nils Department of Applied Science, Mid Sweden University, 871 88, Härnösand, Sweden aut Journal of Applied Phycology Kluwer Academic Publishers 12/1(2000-02-01), 63-67 0921-8971 12:1<63 2000 12 10811 https://doi.org/10.1023/A:1008189230953 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1008189230953 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Danilov Roman Department of Applied Science, Mid Sweden University, 871 88, Härnösand, Sweden aut NATIONALLICENCE 700 1- Ekelund Nils Department of Applied Science, Mid Sweden University, 871 88, Härnösand, Sweden aut NATIONALLICENCE 773 0- Journal of Applied Phycology Kluwer Academic Publishers 12/1(2000-02-01), 63-67 0921-8971 12:1<63 2000 12 10811 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer