文档介绍：Analysis of the chlorophyll a fluorescence transient of
Spirodela polyrhiza by JIP-test
Hongtao Li1, Yu Zhao2, Ke Zhu1, Jinju Wang1,2, Qingdai Liu2∗, Hongjie An2,3∗
1Dept. of plant biology and ecology, Nankai University, Tianjin, China 300071
2Key Laboratory of Food Nutrition and Safety (Tianjin University of Science & Technology),
Ministry of Education, Tianjin, China 300457
3Bio-X Center for Life Science and Technology, Shanghai Jiao Tong University, Shanghai, China 200030
∗Correspondence author: hjanlog@, htli2004@
Abstract—Chlorophyll a fluorescence has been used as Spirodela polyrhiza could serve as a water purifer since it
non-invasive probe for stress physiology and environmental accumulates three times the medium concentration into its cells
investigation. The changes of photosynthetic apparatus in [6]. Spirodela polyrhiza is also often used as biosensors to test
Spirodela polyrrhiza was studied by using chlorophyll a many pollutants in water [2,7]. In previous work Spirodela
fluorescence technique and JIP-test. During L-serine-induced polyrrhiza have been shown to be one of the suitable systems
senescence, photosynthetic performance index (PI), reaction to study leaf senescence and metal pollution, when aseptically
center (RC) decreased gradually and reached zero on the 8th day cultivated like anisms within laboratory un