High Irradiance Induced Changes of Photosystem 2 in Young and Mature Needles of Cypress (Cupressus sempervirens L.)
作者： N. Porta , M. Bertamini , N. Nedunchezhian , K. Muthuchelian
DOI: 10.1023/B:PHOT.0000040599.63773.EF
关键词:
摘要: Photoinhibition of photosynthesis was studied in young and mature detached sun needles cypress under high irradiance (HI) about 1 900 μmol m−2 s−1. The degree photoinhibition determined by means the ratio variable to maximum chlorophyll (Chl) fluorescence (Fv/Fm) electron transport measurements. Compared with needles, containing half amount Chl a+b per unit area, exhibited a higher proportion total carotenoids (Car) as xanthophyll cycle pigments had an increased Car/Chl a+b. potential efficiency photosystem (PS) 2, Fv/Fm, markedly declined HI-treated without significant increase F0 level. In contrast, Fv/Fm level needles. isolated thylakoids, rate whole chain PS2 activity decreased HI-needles comparison A smaller inhibition PS1 observed both subsequent dark incubation, fast recovery found needle Types that reached efficiencies similar those non-photoinhibited artificial exogenous donors DPC, NH2OH, Mn2+ failed restore HI-induced loss while DPC NH2OH significantly restored it Hence, HI-inactivation on donor side acceptor Quantification reaction centre proteins D1 33 kDa protein water splitting complex following HI-exposure showed pronounced differences between large due marked
unirioja.es
springer.com
sci-hub.se 参考文章(64)
Hartmut K. Lichtenthaler, [34] Chlorophylls and carotenoids: Pigments of photosynthetic biomembranes Methods in Enzymology. ,vol. 148, pp. 350- 382 ,(1987) , 10.1016/0076-6879(87)48036-1
W. S. Chow, C. B. Osmond, Lin Ke Huang, Photosystem II function and herbicide binding sites during photoinhibition of spinach chloroplasts in-vivo and in-vitro. Photosynthesis Research. ,vol. 21, pp. 17- 26 ,(1989) , 10.1007/BF00047171
Shuang-Song Hong, Da-Quan Xu, Light-induced increase in initial chlorophyll fluorescence Fo level and the reversible inactivation of PS II reaction centers in soybean leaves Photosynthesis Research. ,vol. 61, pp. 269- 280 ,(1999) , 10.1023/A:1006357203466
Yoshihiro Yamane, Yasuhiro Kashino, Hiroyuki Koike, Kazuhiko Satoh, Increases in the fluorescence F o level and reversible inhibition of Photosystem II reaction center by high-temperature treatments in higher plants Photosynthesis Research. ,vol. 52, pp. 57- 64 ,(1997) , 10.1023/A:1005884717655
A. Hager, Lichtbedingte pH-Erniedrigung in einem Chloroplasten-Kompartiment als Ursache der enzymatischen Violaxanthin-→ Zeaxanthin-Umwandlung; Beziehungen zur Photophosphorylierung Planta. ,vol. 89, pp. 224- 243 ,(1969) , 10.1007/BF00385028
ITZHAK OHAD, ONDRĚJ PRÁŠIL, NOAM ADIR, Dynamics of photosystem II : mechanism of photoinhibition and recovery process The Photosystems#R##N#Structure, Function and Molecular Biology. ,vol. 11, pp. 295- 348 ,(1992) , 10.1016/B978-0-444-89440-3.50017-5
M. Bertamini, N. Nedunchezhian, Photoinhibition of Photosynthesis in Vitis berlandieri and Vitis rupestris Leaves under Field Conditions Photosynthetica. ,vol. 40, pp. 597- 603 ,(2002) , 10.1023/A:1024364321833
Noam Adir, Hagit Zer, Susana Shochat, Itzhak Ohad, Photoinhibition – a historical perspective Photosynthesis Research. ,vol. 76, pp. 343- 370 ,(2003) , 10.1023/A:1024969518145
Tamiko Oh-hama, Eiji Hase, Enhancing effects of CO2 on chloroplast regeneration in glucose-bleached cells of Chlorella protothecoides II. Role of carbamylphosphate in chloroplast regeneration Plant and Cell Physiology. ,vol. 17, pp. 55- 62 ,(1976) , 10.1093/OXFORDJOURNALS.PCP.A075265
I. Ohad, D.J. Kyle, J. Hirschberg, Light‐dependent degradation of the QB‐protein in isolated pea thylakoids The EMBO Journal. ,vol. 4, pp. 1655- 1659 ,(1985) , 10.1002/J.1460-2075.1985.TB03833.X