LEI Chunyi, Liu Weiqiu, LIU Binyang, et al. Responses of Photosystem Ⅱ of Reboulia hemisphaerica to Nitrogen Deposition [J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2010,49(1):72-75.
LEI Chunyi, Liu Weiqiu, LIU Binyang, et al. Responses of Photosystem Ⅱ of Reboulia hemisphaerica to Nitrogen Deposition [J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2010,49(1):72-75.DOI:
Chlorophyll fluorescence transient kinetics of Reboulia hemisphaerica under different simulated nitrogen deposition conditions was studied. The results showed that nitrogen treatments caused changes of chlorophyll fluorescence transient of Reboulia hemisphaerica. N treatments affected PS Ⅱ by reducing the capacity of energy trap of unit area as well as changing the redox states and the heterogeneity of the filling up of the PS Ⅱ acceptor side
destroying the electron flow
especially the electron flow beyond Q-A
as a result
the absorbed energy can not be consumed in the electron flow and have to be consumed by fluorescence and heat. It can be deduced from the JIPtest that 40 and 60 kg·hm
-2
·a
-1
treatments lead serious damages to Reboulia hemisphaerica.