Amminoacidi Liberi inEuglena

Abstract Free amino acids in EUGLENA. — The free amino acids present in Euglena gracilis strain Z, cultivated in the light and the dark, as well as in the strain bleached by streptomycin, have been identified by the conventional paper chromatographic method. Variations have been observed when the photosynthetic apparatus is lost. Generally in the photosynthetic Euglena cells the pool of aminoacids reminds that of green algae, whereas bleached cells are similar to protozoa. It is possible that these variations are linked to the metabolic patways of green and bleached forms.