Acta Botanica Croatica, Vol. 31 No. 1, 1972.
Original scientific paper
Interaction of Mineral Nutrition and Temperature on the Growth of Euglena gracilis
Elena Marčenko
; Hrvatska
Abstract
In Euglena gracilis strain »Z« grown in the complex medium (on a repetitive light-dark cycle) the need for exogenous nutrients rises with temperature. At 18 °C no need in added nutrients has been observed.
The rate of growth as expressed in increase in cell number, amount of chlorophyll and carotenoids rises at higher temperatures with additional phosphates (K2HP04 and KH2PO4), mixture of microelements and magnesium sulphate.
Addition of ammonium mono-H orthophosphate at the concentration used inhibits cell division but does not affect chlorophyll synthesis, and cells with very high chlorophyll concentration are obtained.
The study indicates that the illumination regimen induces marked differences in the relative rates of cellular biosynthesis.
Keywords
Hrčak ID:
157130
URI
Publication date:
31.12.1972.
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