EFFECT OF ETHANOL ON RESPIRATION AND PHOTOSYNTHESIS OF EUGLENA GRACILIS
Journal Title: Мікробіологія і біотехнологія - Year 2014, Vol 0, Issue 3
Abstract
The aim of the present work was to study the effect of ethanol on the rates of photosynthesis and respiration, and productivity of Euglena gracilis. Methods.The growth rate of culture was determined by cell concentration. Dark respiration and net photosynthesis were measured by O2 concentration changes with a Clark-type electrode. Photosynthesis efficiency was also determined as effective quantum yield of PSII with Xe-PAM fluorometer (Walz, Germany). Results. Addition of 100 mM ethanol significantly stimulated the growth of light-adapted E. gracilis. At the same time, respiration rate tripled and light-dependent oxygen evolution rate doubled. Methanol caused no significant changes. Conclusions. Cultivated on the light E. gracilis effectively assimilated ethyl alcohol, that was accompanied by photosynthesis activation and culture biomass accumulation.
Authors and Affiliations
V. M. Mokrosnop, O. V. Polishchuk, O. K. Zolotareva
Keywords
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- EP ID EP395639
- DOI 10.18524/2307-4663.2014.3(27).48291
- Views 80
- Downloads 0
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