PMID: 37909Aug 14, 1979

Appearance of photochemical function in prothylakoids during plastid development

Biochimica Et Biophysica Acta
A R Wellburn, R Hampp


1. A method to separate the vesicles of prothylakoids from prolamellar body preparations obtained from etiolated and rapidly greening Avena laminae (0.25--4 h illumination ) is described. The prothylakoid preparations were found to be free from contaminating prolamellar bodies but enriched prolamellar body preparations (enriched prolamellar body preparations) still contained some adhering prothylakoid material. 2. Only existing beta-carotene appears to be transferred from the prolamellar bodies to the prothylakoids during early development and this ceases when freshly synthesized beta-carotene becomes available. 3. Prolamellar body structures proper show no positive association of existing or developing photochemical activities; these are only to be found in the developing prothylakoids. 4. Using methylviologen-linked electron transport-dependent oxygen consumption, Photosystem I activities may be detected with added diaminodurene within 15 min of illumination and within 30 min and 1 h with added tetramethylphenylenediamine and dichlorophenolindophenol, respectively. 5. During the 2nd, and 3rd. h of greening, proton-pumping capability and later ATP formation increased in prothylakoids in the presence of diaminodurene. 6. The fi...Continue Reading


May 1, 1982·Planta·A R WellburnF A Wellburn
Apr 1, 1980·Plant Physiology·R Hampp, L F De Filippis
Jul 1, 1980·Plant Physiology·L F De FilippisH Ziegler
Feb 3, 2016·Plant, Cell & Environment·Dmitriy ShevelaLutz A Eichacker
Mar 16, 1983·Biochemical and Biophysical Research Communications·H DaniellC A Rebeiz
Oct 28, 2019·The Biochemical Journal·Petar H Lambrev, Parveen Akhtar
Aug 1, 1981·European Journal of Biochemistry·C LützT Griffiths

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