文档介绍：Measuring the effect of chromate pollution on
duckweed half-fronds by chlorophyll fluorescence
Qingdai Liu1, Fang Wang1,Yu Zhao1, Xiaochen Guo1, Hongjie An3, Zhizhou Zhang1,2∗
1 Key Laboratory of Food Nutrition and Safety (Tianjin University of Science & Technology),
Ministry of Education, Tianjin, China 300457
2 Bio-X Center for Marine BioTechnology, Harbin Institute of Technology, Weihai, China 264209
3The School of Earth and Environmental Sciences, University of Adelaide, Australia 5005
∗Correspondence author: ******@hitwh.
Abstract—Accumulated chromate from the medium was be a better system for investigating the influence of chromate
responsible for the inhibition of the photosystem II. In this study, by adding into the medium.
we focused on the alteration of the photosynthetic apparatus In this paper, we proposed that the application of the
through analysis of the Chlorophyll a fluorescence of duckweed
half-fronds. Chromate induced the K step on the fluorescence duckweed half-fronds worked as an auxiliary system to
transient in 6-BA treated half-fronds. Chromate affected several estimate the degree of environmental pollution in water. This
targets of photosynthetic II apparatus. The oxygen evolving system enables to provide mass screening which allows
complex (OEC) was the more highly sensitive to chromate than drawing a po