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Biomedical subjects

D O Hall

Publications and source records attributed to D O Hall.

122 records · Page 7Linked to original sources
PubMed1968

The stoicheiometry of electron transfer by bacterial and plant ferredoxins.

1. The number of electrons carried by ferredoxins from spinach, the blue-green alga Anacystis nidulans, the anaerobic bacterium Clostridium welchii and the photosynthetic bacterium Chromatium was determined. 2. Ferredoxins were reduced by illuminated chloroplasts, and the stoicheiometry of the reoxidation in the dark of the ferredoxins by NADP and benzyl viologen was measured. 3. Spinach and A. nidulans ferredoxins were found to be one-electron carriers, and Cl. welchii and Chromatium ferredoxins were two-electron carriers.

Chloroplasts↗
PubMedDate not supplied

Ultrastructural changes in in vitro ageing spinach chloroplasts.

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.

Aging↗