Journal
PLANT PHYSIOLOGY AND BIOCHEMISTRY
Volume 88, Issue -, Pages 53-59Publisher
ELSEVIER FRANCE-EDITIONS SCIENTIFIQUES MEDICALES ELSEVIER
DOI: 10.1016/j.plaphy.2015.01.010
Keywords
Artemisinin; Cell viability; Lettuce; Mitosis; Phytotoxicity; Reactive oxygen species
Categories
Funding
- National Natural Science Foundation of China [31070386, 31300290]
- around five top priorities program of One-Three-Five Strategic Planning of Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences
- Open Project of Key Laboratory of Tobacco Diseases and Insect Pests Monitoring Controlling and Integrated Management, Institute of Tobacco Research, Chinese Academy of Agricultural Sciences [IPM201404]
- Province-academy Cooperation Program of Henan Province of China [102106000021]
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Artemisinin has been recognized as an allelochemical that inhibits growth of several plant species. However, its mode of action is not well clarified. In this study, the mechanism of artemisinin phytotoxicity on lettuce seedlings was investigated. Root and shoot elongation of lettuce seedlings were inhibited by artemisinin in a concentration-dependent manner. The compound effectively arrested cell division and caused loss of cell viability in root tips of lettuce. Overproduction of reactive oxygen species (ROS) was induced by artemisinin. Lipid peroxidation, proline overproduction and reduction of chlorophyll content in lettuce seedlings were found after treatments. These results suggested that artemisinin could induce ROS overproduction, which caused membrane lipids peroxidation and cell death, and impacted mitosis and physiological processes, resulting in growth inhibition of receptor plants. (C) 2015 Elsevier Masson SAS. All rights reserved.
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