Fatty acid content in wild type and WZSL mutant of Euglena gracilis |
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Authors: | Laura Barsanti Alessandra Bastianini Vincenzo Passarelli Mario R. Tredici Paolo Gualtieri |
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Affiliation: | (1) Istituto di Biofisica, CNR, Area della Ricerca di Pisa, Via Alfieri 1, San Cataldo, 56010 Ghezzano- Pisa, Italy;(2) Dipartimento di Biotecnologie Agrarie, Università degli Studi di Firenze, P. le delle Cascine 27, 50144 Firenze, Italy |
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Abstract: | The effects of growth conditions on fatty acid profilewere examined in the photosynthetic wild type and inthe spontaneous non-photosynthetic WZSL mutant of theunicellular flagellate Euglena gracilis. Inthe light, the amount of polyunsaturated fatty acids(PUFAs) is higher in the wild type than in the mutant,independent of the carbon source. Among importantPUFAs, linolenic acid (18:3 3) is present inhigh amount only in wild type cells grown in the lightwith any of the tested carbon sources. The content ofother PUFAs, such as arachidonic acid (20:46), EPA (20:5 3) and DHA (22:63), is not correlated with the presence oflight or chloroplasts.The main effect of the dark in both strains is tolower the content of PUFAs and mono-unsaturated fattyacids and to increase the content of saturated fattyacids with all the carbon sources. |
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Keywords: | Euglena gracilis fatty acids non-photosynthetic mutant WZSL |
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