title: [Influence of DCMU on the formation of lipids and fatty acids, and on the ultrastructure of Euglena gracilis (author's transl)].
abstract: Euglena gracilis Klebs (strain Z) was grown heterotrophically in the dark for 6 days. Subsequently, the cells were grown photoautotrophically under white fluorescent light with varying amounts of 3-(3,4-dichlorophenyl)-1,1 dimethyl urea (DCMU) (1.7X10(-9)--1.0X10(-5)mol/l) added to the nutrient medium. Under non-photosynthetic conditions (addition of 10(-6)--10(-5)mol DCMU/l), the cells still produced chloroplast structures and a considerable percentage of compounds typical for chloroplasts, such as galactolipids (40-50%), chlorophylls (40%), and polyunsaturated C16 and C18 fatty acids (16:2, 16:3, 16:4, 18:2, 18:3) (65%). The results indicate that under these conditions the above compounds are synthesized from carbon sources outside the chloroplasts.
mesh_terms: D000818:Animals; D002736:Chloroplasts / Q000187:drug effects / Q000378:metabolism; D004237:Diuron / Q000494:pharmacology*; D005056:Euglena gracilis / Q000187:drug effects / Q000378:metabolism* / Q000648:ultrastructure; D005227:Fatty Acids / Q000378:metabolism*; D006017:Glycolipids / Q000378:metabolism; D007700:Kinetics; D050356:Lipid Metabolism; D010788:Photosynthesis / Q000187:drug effects
chemical_list: D005227:Fatty Acids; D006017:Glycolipids; D004237:Diuron
vernacular_title: Einfluss von DCMU auf die Bildung von Lipiden und Fettsäuren und auf die Ultrastruktur von Euglena gracilis