The study of oxygen reduction in photosystem I of higher plants using electron donors for this photosystem in intact thylakoids

Kozuleva, Marina; Ветошкина, Д. В.; Petrova, Anastasia; Borisova‐Mubarakshina, Maria M.; Иванов, Б. Н.

doi:10.1134/s1990747814060026

Cited by 5 publications

(1 citation statement)

References 26 publications

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“…Moreover, PSI exhibits the highest rate of O 2 ÁÀ production compared to other photosynthetic complexes (Fitzpatrick et al, 2022;Kozuleva et al, 2021). Iron-sulphur clusters (F A /F B ) located at the acceptor side of PSI and iron-sulphur clusters (F X ) or phylloquinone (A 1 ) embedded within the thylakoid membranes have been suggested as electron donors for O 2 reduction (Asada, 1994(Asada, , 1999Kozuleva et al, 2011Kozuleva et al, , 2014Kozuleva et al, , 2015Kruk et al, 2003;Takahashi & Asada, 1982, 1988. The O 2 reduction kinetics are investigated in the isolated thylakoid membranes.…”

Section: Introductionmentioning

confidence: 99%

Impact of growth light environment on oxygen sensitivity in rice: Pseudo‐first‐order response of photosystem I photoinhibition to O₂ partial pressure

Takagi,

Tani

2023

Physiologia Plantarum

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Photosynthetic organisms generate reactive oxygen species (ROS) during photosynthetic electron transport reactions on the thylakoid membranes within both photosystems (PSI and PSII), leading to the impairment of photosynthetic activity, known as photoinhibition. In PSI, ROS production has been suggested to follow Michaelis–Menten‐ or second‐order reaction‐dependent kinetics in response to changes in the partial pressure of O2. However, it remains unclear whether ROS‐mediated PSI photoinhibition follows the kinetics mentioned above. In this study, we aimed to elucidate the ROS production kinetics from the aspect of PSI photoinhibition in vivo. For this research objective, we investigated the O2 dependence of PSI photoinhibition by examining intact rice leaves grown under varying photon flux densities. Subsequently, we found that the degree of O2‐dependent PSI photoinhibition linearly increased in response to the increase in O2 partial pressure. Furthermore, we observed that the higher photon flux density on plant growth reduced the O2 sensitivity of PSI photoinhibition. Based on the obtained data, we investigated the O2‐dependent kinetics of PSI photoinhibition by model fitting analysis to elucidate the mechanism of PSI photoinhibition in leaves grown under various photon flux densities. Remarkably, we found that the pseudo‐first‐order reaction formula successfully replicated the O2‐dependent PSI photoinhibition kinetics in intact leaves. These results suggest that ROS production, which triggers PSI photoinhibition, occurs by an electron‐leakage reaction from electron carriers within PSI, consistent with previous in vitro studies.

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Section: Introductionmentioning

confidence: 99%

Impact of growth light environment on oxygen sensitivity in rice: Pseudo‐first‐order response of photosystem I photoinhibition to O₂ partial pressure

Takagi,

Tani

2023

Physiologia Plantarum

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Effect of artificial redox mediators on the photoinduced oxygen reduction by photosystem I complexes

et al. 2018

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The peculiarities of interaction of cyanobacterial photosystem I with redox mediators 2,6-dichlorophenolindophenol (DCPIP) and N,N,N',N'-tetramethyl-p-phenylenediamine (TMPD) were investigated. The higher donor efficiency of the reduced DCPIP form was demonstrated. The oxidized form of DCPIP was shown to be an efficient electron acceptor for terminal iron-sulfur cluster of photosystem I. Likewise methyl viologen, after one-electron reduction, DCPIP transfers an electron to the molecular oxygen. These results were discussed in terms of influence of these interactions on photosystem I reactions with the molecular oxygen and natural electron acceptors.

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Recent advances in the understanding of superoxide anion radical formation in the photosynthetic electron transport chain

Kozuleva

2022

Acta Physiol Plant

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The study of oxygen reduction in photosystem I of higher plants using electron donors for this photosystem in intact thylakoids

Cited by 5 publications

References 26 publications

Impact of growth light environment on oxygen sensitivity in rice: Pseudo‐first‐order response of photosystem I photoinhibition to O₂ partial pressure

Impact of growth light environment on oxygen sensitivity in rice: Pseudo‐first‐order response of photosystem I photoinhibition to O₂ partial pressure

Effect of artificial redox mediators on the photoinduced oxygen reduction by photosystem I complexes

Recent advances in the understanding of superoxide anion radical formation in the photosynthetic electron transport chain

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The study of oxygen reduction in photosystem I of higher plants using electron donors for this photosystem in intact thylakoids

Cited by 5 publications

References 26 publications

Impact of growth light environment on oxygen sensitivity in rice: Pseudo‐first‐order response of photosystem I photoinhibition to O2 partial pressure

Impact of growth light environment on oxygen sensitivity in rice: Pseudo‐first‐order response of photosystem I photoinhibition to O2 partial pressure

Effect of artificial redox mediators on the photoinduced oxygen reduction by photosystem I complexes

Recent advances in the understanding of superoxide anion radical formation in the photosynthetic electron transport chain

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Impact of growth light environment on oxygen sensitivity in rice: Pseudo‐first‐order response of photosystem I photoinhibition to O₂ partial pressure

Impact of growth light environment on oxygen sensitivity in rice: Pseudo‐first‐order response of photosystem I photoinhibition to O₂ partial pressure