title: [Ultrastructure of chloroplasts and activity of amylases in Chlorella cells during space flight].
abstract: Ultrastructure of Chlorella cells grown in space flight was studied. Some differences in cell organells, chloroplasts in particular, were found in experimental cells in comparison to control. The considerable reduction in the number of reserve polysaccharides in chloroplasts and some decrease in stroma electron density were detected. Specific activity of amylases enhanced because of an increase in concentrations of mono- and disaccharides. The rearrangements of chloroplast ultrastructure, predominantly a decrease in reserve polysaccharides, are probably due to an increase of hydrolytic processes under microgravity.
authors.forename: A F
authors.initials: AF
authors.lastname: Popova
authors.forename: E I
authors.initials: EI
authors.lastname: Shniukova
mesh_terms: D000681:Amylases / Q000378:metabolism*; D002708:Chlorella / Q000201:enzymology / Q000254:growth & development* / Q000648:ultrastructure; D002736:Chloroplasts / Q000648:ultrastructure*; D008854:Microscopy, Electron; D013026:Space Flight
chemical_list: D000681:Amylases