@Article{taiwania1999442259, AUTHOR = {Shieu-Yun Ma and Yung-Reui Chen}, TITLE = {Effects of Copper on the Changes of Membrane Lipids, Photosynthetic Pigments and Thiol-containinng Compounds in Zinnia elegans Leaves}, JOURNAL = {Taiwania}, VOLUME = {44}, YEAR = {1999}, ISSUE = {2}, PAGES = {259-270}, URL = {https://taiwania.ntu.edu.tw/abstract/136}, ABSTRACT = {Five-week-old plants of Zinnia elegans were grown in culture medium containing 50 M CuSO4. Plasma membrane was isolated and purified from both leaves of control and susceptible plants with method of polyethylene glycol/dextrin two-phase partition system. The major fatty acids of plasma membrane were identified as palmitic acid (16 : 0), linoleic acid (18 : 2) and linolenic acid (18 : 3). The ratios of unsaturated fatty acids to saturated fatty acids were reduced in copper-treated plants. The productions of lipid peroxides and nonprotein thiol-containing compound were obviously enhanced in copper-treated plants. Copper also caused the increment in chlorophyll content and total amounts of carotenoids in young leaves.}, DOI = {10.6165/tai.1999.44(2).259} }