title: Ultrastructural changes in in vitro ageing spinach chloroplasts.
abstract: Ultrastructural changes in in vitro ageing spinach chloroplasts have been studied in detail. Prolonged storage caused swelling of the chloroplasts due to the increase in the thickness and spacing of the thylakoid membranes. The increase in the thickness of the membrane is partly accompanied by the release of lipids. Addition of crystalline bovine serum albumin was found to stabilize the membrane structures. Storage of the chloroplasts at 77 degrees K even though it resulted in complete breakage of the whole chloroplasts, maintained the thylakoid structures in a highly intact form.
mesh_terms: D000375:Aging; D002736:Chloroplasts / Q000187:drug effects / Q000648:ultrastructure*; D006982:Hypertonic Solutions; D008566:Membranes / Q000648:ultrastructure; D011309:Preservation, Biological; D012710:Serum Albumin, Bovine / Q000494:pharmacology; D013012:Sorbitol / Q000494:pharmacology
chemical_list: D006982:Hypertonic Solutions; D012710:Serum Albumin, Bovine; D013012:Sorbitol