Alterations of Membrane Lipid Content Correlated With Chloroplast and Mitochondria Development in Euglena gracilis.

ABSTRACT: Euglenoids are unique protists that can grow photoautotrophically, photomixotrophically, and heterotrophically. Here we grew Euglena gracilis under these different growth conditions and determined cellular contents of seven membrane lipids and one storage lipid (triacylglycerol), which account for more than 94 mol% of total membrane lipids. We also describe the relationship among chloroplast and mitochondria developments with lipid contents, protein contents, and oxygen evolution/consumption rates. In photoautotrophic growth conditions, E. gracilis cells accumulated chlorophyll, photosynthetic proteins, and glycolipids typical to thylakoid membranes. The same occurred for the cells grown under photomixotrophic conditions with higher respiration rates. In heterotrophic

SUBMITTER: Shibata S 

PROVIDER: S-EPMC5881160 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature