PS II model based analysis of transient fluorescence yield measured on whole leaves of Arabidopsis thaliana after excitation with light flashes of different energies

Belyaeva, N. E.; Schmitt, Franz‐Josef; Paschenko, V.Z.; Riznichenko, G. Yu.; Rubin, A. B.; Ренгер, Г.

doi:10.1016/j.biosystems.2010.09.014

Cited by 34 publications

(33 citation statements)

References 15 publications

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“…Before, this scheme was described in detail in works of Belyaeva et al (2008Belyaeva et al ( , 2011aBelyaeva et al ( , b, 2014. The certain rectangle element in Fig.…”

Section: Methods For Data Interpretationmentioning

confidence: 99%

“…where, k A = k -n , n = (Steffen et al 2005;Belyaeva et al 2008Belyaeva et al , 2011a and heat dissipation with the rate constant k HD . Results of Schödel et al (1996Schödel et al ( , 1998 and Steffen et al (2005) were the basis for the description of dissipative 1 Chl* relaxation by inter-system-crossing of Chl with the subsequent 3 Chl quenching by carotenoids with the rate constant k 3Car caused by the time-dependent population of triplet carotenoid states 3 Car.…”

Section: Methods For Data Interpretationmentioning

confidence: 99%

“…For the sake of simplicity the time course of the excitation laser pulse k L (t) is simulated as an exponential decay (Belyaeva et al 2011a):…”

Section: Methods For Data Interpretationmentioning

confidence: 99%

“…In particular, analytical functions were proposed to describe (a) the transient 3 Car(t) population (Belyaeva et al 2008) vanishing on the microsecond time scale after a pulse excitation; (b) the dynamics of the chlorophyll excitation by the single turnover flash followed by non actinic measuring light with a low intensity (Belyaeva et al 2011a); (c) the light-induced time courses of DW, pH Lumen , and pH Stroma (Belyaeva et al 2011b); (d) the multiphasic nanosecond kinetics of the ET from Y Z to P þ 680 followed by an electron donation from WOC to Y Z coupled to the transition S 1 ? S 2 (Belyaeva et al 2014).…”

Section: Introductionmentioning

confidence: 99%

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Modeling of the redox state dynamics in photosystem II of Chlorella pyrenoidosa Chick cells and leaves of spinach and Arabidopsis thaliana from single flash-induced fluorescence quantum yield changes on the 100 ns–10 s time scale

Belyaeva

Schmitt²,

Paschenko

et al. 2015

Photosynth Res

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The time courses of the photosystem II (PSII) redox states were analyzed with a model scheme supposing a fraction of 11-25 % semiquinone (with reduced [Formula: see text]) RCs in the dark. Patterns of single flash-induced transient fluorescence yield (SFITFY) measured for leaves (spinach and Arabidopsis (A.) thaliana) and the thermophilic alga Chlorella (C.) pyrenoidosa Chick (Steffen et al. Biochemistry 44:3123-3132, 2005; Belyaeva et al. Photosynth Res 98:105-119, 2008, Plant Physiol Biochem 77:49-59, 2014) were fitted with the PSII model. The simulations show that at high-light conditions the flash generated triplet carotenoid (3)Car(t) population is the main NPQ regulator decaying in the time interval of 6-8 μs. So the SFITFY increase up to the maximum level [Formula: see text]/F 0 (at ~50 μs) depends mainly on the flash energy. Transient electron redistributions on the RC redox cofactors were displayed to explain the SFITFY measured by weak light pulses during the PSII relaxation by electron transfer (ET) steps and coupled proton transfer on both the donor and the acceptor side of the PSII. The contribution of non-radiative charge recombination was taken into account. Analytical expressions for the laser flash, the (3)Car(t) decay and the work of the water-oxidizing complex (WOC) were used to improve the modeled P680(+) reduction by YZ in the state S 1 of the WOC. All parameter values were compared between spinach, A. thaliana leaves and C. pyrenoidosa alga cells and at different laser flash energies. ET from [Formula: see text] slower in alga as compared to leaf samples was elucidated by the dynamics of [Formula: see text] fractions to fit SFITFY data. Low membrane energization after the 10 ns single turnover flash was modeled: the ∆Ψ(t) amplitude (20 mV) is found to be about 5-fold smaller than under the continuous light induction; the time-independent lumen pHL, stroma pHS are fitted close to dark estimates. Depending on the flash energy used at 1.4, 4, 100 % the pHS in stroma is fitted to 7.3, 7.4, and 7.7, respectively. The biggest ∆pH difference between stroma and lumen was found to be 1.2, thus pH- dependent NPQ was not considered.

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“…Before, this scheme was described in detail in works of Belyaeva et al (2008Belyaeva et al ( , 2011aBelyaeva et al ( , b, 2014. The certain rectangle element in Fig.…”

Section: Methods For Data Interpretationmentioning

confidence: 99%

Section: Methods For Data Interpretationmentioning

confidence: 99%

“…For the sake of simplicity the time course of the excitation laser pulse k L (t) is simulated as an exponential decay (Belyaeva et al 2011a):…”

Section: Methods For Data Interpretationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Modeling of the redox state dynamics in photosystem II of Chlorella pyrenoidosa Chick cells and leaves of spinach and Arabidopsis thaliana from single flash-induced fluorescence quantum yield changes on the 100 ns–10 s time scale

Belyaeva

Schmitt²,

Paschenko

et al. 2015

Photosynth Res

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show abstract

“…Методы математического моделирования широко используются при изучении первичных процессов фотосинтеза, в том числе механизмов световой индукции ФХ [4,[6][7][8][9][10][11][12]. В основе большинства существующих моделей OJIP кривых лежит представление о том, что характер ИКФ определяется быстрыми фотохимическими процессами в ФС2, а также реакциями переноса электронов с донорной стороны ФС2 в ПХ пул.…”

Section: Introductionunclassified

Mathematical Modeling of Photosynthetic Electron Transport Chain Considering Spatial Heterogeneity of the Thylakoid Membrane

Макаров¹

2012

Math.Biol.Bioinf.

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The Multiple Roles of Various Reactive Oxygen Species (ROS) in Photosynthetic Organisms

et al. 2015

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PS II model based analysis of transient fluorescence yield measured on whole leaves of Arabidopsis thaliana after excitation with light flashes of different energies

Cited by 34 publications

References 15 publications

Modeling of the redox state dynamics in photosystem II of Chlorella pyrenoidosa Chick cells and leaves of spinach and Arabidopsis thaliana from single flash-induced fluorescence quantum yield changes on the 100 ns–10 s time scale

Modeling of the redox state dynamics in photosystem II of Chlorella pyrenoidosa Chick cells and leaves of spinach and Arabidopsis thaliana from single flash-induced fluorescence quantum yield changes on the 100 ns–10 s time scale

Mathematical Modeling of Photosynthetic Electron Transport Chain Considering Spatial Heterogeneity of the Thylakoid Membrane

The Multiple Roles of Various Reactive Oxygen Species (ROS) in Photosynthetic Organisms

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