Seedlings (2 weeks old) of pepper (Capsicum annum) were grown in nutrient solution with added CdCl2 (10 or 50μM) for 7 days. In Cd-treated plants, changes in acyl lipids and fatty acid composition were investigated. Cd particularly lowered the amount of monogalactosyldiacylglycerol (MGDG) and enhanced accumulation of phospholipids [phosphatidylcholine (PC), phosphatidylethanolamine and phosphatidylglycerol] in leaves. In contrast, content of PC and galactolipids (MGDG and digalactosyldiacylglycerol) decreased in roots. Fatty acid composition of leaves was also changed by Cd addition to external medium, but no important changes occurred in roots. Levels of leaf polyunsaturated fatty acids, especially 18:3 and 16:3, were reduced. Lipid and fatty acid composition changes in roots are discussed in relation to Cd tolerance in pepper.
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Conference Article|
December 01 2000
Effect of cadmium on lipid composition of pepper
F. Jemal;
F. Jemal
1
*Laboratoire de Physiologie Végétale, Département des Sciences Biologiques, Faculté des Sciences, 1060 Tunis, Tunisia
1To whom correspondence should be addressed (e-mail jemal@planet.tn)
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M. Zarrouk;
M. Zarrouk
†Laboratoire d'Adaptation et d'Amélioration des Plantes, INRST, BP 95, 2050 Hammam-Lif, Tunisia
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M. H. Ghorbal
M. H. Ghorbal
*Laboratoire de Physiologie Végétale, Département des Sciences Biologiques, Faculté des Sciences, 1060 Tunis, Tunisia
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Publisher: Portland Press Ltd
Received:
June 26 2000
Online ISSN: 1470-8752
Print ISSN: 0300-5127
© 2000 Biochemical Society
2000
Biochem Soc Trans (2000) 28 (6): 907–910.
Article history
Received:
June 26 2000
Citation
F. Jemal, M. Zarrouk, M. H. Ghorbal; Effect of cadmium on lipid composition of pepper. Biochem Soc Trans 1 December 2000; 28 (6): 907–910. doi: https://doi.org/10.1042/bst0280907
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