Chlorophyllase activity in chlorophyll-free citrus chromoplasts
- 1 June 1983
- journal article
- Published by Springer Nature in Plant Cell Reports
- Vol. 2 (3) , 117-118
- https://doi.org/10.1007/bf00269332
Abstract
Chromoplast fractions from mature, chlorophyll-less ‘Valencia’ orange (Citrus sinensis L. Osbeck) flavedo (= the outer coloured layer of citrus peel) showed considerable chlorophyllase activity. Acetone powders prepared from chromoplast fractions had 2.5× higher specific activity than those prepared from whole flavedo. Exposure of mature, chlorophyll-less fruit to ethylene caused a 2.5 to 4.0 fold increase in chlorophyllase activity. Juice chromoplasts showed negligible chlorophyllase activity. The results suggest that chlorophyllase activity as well as its induction by ethylene are not dependent upon the presence of chlorophyll in the tissue.Keywords
This publication has 13 references indexed in Scilit:
- Hydrophobic chromatographic purification of ethylene-enhanced chlorophyllase from Citrus unshiu fruitsPhytochemistry, 1982
- Involvement of Ethylene in Chlorophyll Degradation in Peel of Citrus FruitsPlant Physiology, 1981
- Chlorophyll synthetase in chlorophyll-free chromoplastsPlant Cell Reports, 1981
- Influence of lecithin liposomes on chlorophyllase-catalyzed chlorophyll hydrolysis. Comparison of intramembraneous and solubilized Phaeodactylum chlorophyllaseBiochimica et Biophysica Acta (BBA) - Biomembranes, 1980
- Ethylene-enhanced chlorophyllase activity during degreening of Citrus unshiu Marc.Scientia Horticulturae, 1978
- Galactolipids and phospholipids of orange peel and juice chromoplastsPhytochemistry, 1977
- Protein Turnover in Plants and Possible Means of Its RegulationAnnual Review of Plant Physiology, 1974
- Purification and Properties of Chlorophyllase from Ailanthus altissima (Tree-of-Heaven)Plant Physiology, 1971
- Turnover of the glycerolipids of pumpkin leaves. The importance of phosphatidylcholineBiochemical Journal, 1970
- The Reversion of Chromoplasts to Chloroplasts in Valencia OrangesCYTOLOGIA, 1967