Using the quantum yields of photosystem II and the rate of net photosynthesis to monitor high irradiance and temperature stress in chrysanthemum (Dendranthema grandiflora)

Plant Physiology and Biochemistry : PPB
Eshetu JankaCarl-Otto Ottosen

Abstract

Under a dynamic greenhouse climate control regime, temperature is adjusted to optimise plant physiological responses to prevailing irradiance levels; thus, both temperature and irradiance are used by the plant to maximise the rate of photosynthesis, assuming other factors are not limiting. The control regime may be optimised by monitoring plant responses, and may be promptly adjusted when plant performance is affected by extreme microclimatic conditions, such as high irradiance or temperature. To determine the stress indicators of plants based on their physiological responses, net photosynthesis (Pn) and four chlorophyll-a fluorescence parameters: maximum photochemical efficiency of PSII [Fv/Fm], electron transport rate [ETR], PSII operating efficiency [F'q/F'm], and non-photochemical quenching [NPQ] were assessed for potted chrysanthemum (Dendranthema grandiflora Tzvelev) 'Coral Charm' under different temperature (20, 24, 28, 32, 36 °C) and daily light integrals (DLI; 11, 20, 31, and 43 mol m(-2) created by a PAR of 171, 311, 485 and 667 μmol m(-2) s(-1) for 16 h). High irradiance (667 μmol m(-2) s(-1)) combined with high temperature (>32 °C) significantly (p < 0.05) decreased Fv/Fm. Under high irradiance, the maximum Pn and E...Continue Reading

References

Jan 21, 2003·Tree Physiology·John L Jifon, James P Syvertsen
Mar 12, 2004·Annual Review of Plant Physiology and Plant Molecular Biology·Krishna K. Niyogi
Jun 1, 1996·Annual Review of Plant Physiology and Plant Molecular Biology·P. HortonR. G. Walters
Sep 2, 2006·The New Phytologist·Barbara Demmig-Adams, William W Adams
Jan 9, 2007·Biochimica Et Biophysica Acta·Norio MurataSuleyman I Allakhverdiev
Feb 7, 2007·Journal of Experimental Botany·Yanhong ZhouJianhua Zhang
Mar 11, 2008·Trends in Plant Science·Shunichi Takahashi, Norio Murata
Nov 6, 2010·Trends in Plant Science·Shunichi Takahashi, Murray R Badger
May 14, 2011·Biochimica Et Biophysica Acta·Imre Vass
May 9, 2012·Journal of Photochemistry and Photobiology. B, Biology·Hazem M KalajiKarolina Bosa
May 23, 2013·Photosynthesis Research·William W AdamsBarbara Demmig-Adams
Feb 5, 2014·Plant Physiology and Biochemistry : PPB·Marian BresticSuleyman I Allakhverdiev
Aug 15, 2014·Photosynthesis Research·Hazem M KalajiMarek Zivcak

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