Structural insights into photosynthetic cyclic electron transport

Zhang, Shumeng; Zou, Baohua; Xie, Fen; Pan, Xiaowei; Li, Mei

doi:10.1016/j.molp.2022.12.014

Cited by 17 publications

(10 citation statements)

References 197 publications

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“…Over the past decade, significant progress has been made in elucidating the composition, structure, and function of OPS subunits from the NDH‐1L complex in cyanobacteria (Laughlin et al, 2020; Mi, 2022) and higher plants (Shen et al, 2022; Zhang et al, 2023). Among them, multiple OPS subunits are necessary for the stable accumulation of the NDH‐1L complex in the thylakoid membrane but their roles in the complex are different.…”

Section: Discussionmentioning

confidence: 99%

“…Over the past decade, significant progress has been made in elucidating the composition, structure, and function of OPS subunits from the NDH-1L complex in cyanobacteria (Laughlin et al, 2020;Mi, 2022) and higher plants (Shen et al, 2022;Zhang et al, 2023).…”

Section: Discussionmentioning

confidence: 99%

“…As deduced from the abundance of NdhH, NdhI, and NdhK1 proteins, accumulation of NAI300 and NAI130 in the cytoplasm of NdhMΔC is not affected under both growth and higher temperature (Figure 6). This indicates that the C-terminal part of NdhM is not essential for the assembly of NAIs Over the past decade, significant progress has been made in elucidating the composition, structure, and function of OPS subunits from the NDH-1L complex in cyanobacteria (Laughlin et al, 2020;Mi, 2022) and higher plants (Shen et al, 2022;Zhang et al, 2023). Among them, multiple OPS subunits are necessary for the stable accumulation of the NDH-1L complex in the thylakoid membrane but their roles in the complex are different.…”

Section: Assembly Of the Ndh-1l Hydrophilic Arm Is Not Affected In Th...mentioning

confidence: 99%

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NDH‐1L with a truncated NdhM subunit is unstable under stress conditions in cyanobacteria

et al. 2023

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Cyanobacterial NdhM, an oxygenic photosynthesis‐specific NDH‐1 subunit, has been found to be essential for the formation of a large complex of NDH‐1 (NDH‐1L). The cryo‐electron microscopic (cryo‐EM) structure of NdhM from Thermosynechococcus elongatus showed that the N‐terminus of NdhM contains three β‐sheets, while two α‐helixes are present in the middle and C‐terminal part of NdhM. Here, we obtained a mutant of the unicellular cyanobacterium Synechocystis 6803 expressing a C‐terminal truncated NdhM subunit designated NdhMΔC. Accumulation and activity of NDH‐1 were not affected in NdhMΔC under normal growth conditions. However, the NDH‐1 complex with truncated NdhM is unstable under stress. Immunoblot analyses showed that the assembly process of the cyanobacterial NDH‐1L hydrophilic arm was not affected in the NdhMΔC mutant even under high temperature. Thus, our results indicate that NdhM can bind to the NDH‐1 complex without its C‐terminal α‐helix, but the interaction is weakened. NDH‐1L with truncated NdhM is more prone to dissociation, and this is particularly evident under stress conditions.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Assembly Of the Ndh-1l Hydrophilic Arm Is Not Affected In Th...mentioning

confidence: 99%

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NDH‐1L with a truncated NdhM subunit is unstable under stress conditions in cyanobacteria

et al. 2023

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“…In PSI, Fe plays an important role in cyclic electron transport. Here several small Fe‐S‐dependent electron carrier proteins enable electron transport, without NADPH production, to avoid overenergization of the Calvin–Benson cycle (Zhang et al ., 2023).…”

Section: Ironmentioning

confidence: 99%

Linking the key physiological functions of essential micronutrients to their deficiency symptoms in plants

Lilay,

Thiébaut,

du Mee

et al. 2024

New Phytologist

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SummaryIn this review, we untangle the physiological key functions of the essential micronutrients and link them to the deficiency responses in plants. Knowledge of these responses at the mechanistic level, and the resulting deficiency symptoms, have improved over the last decade and it appears timely to review recent insights for each of them. A proper understanding of the links between function and symptom is indispensable for an accurate and timely identification of nutritional disorders, thereby informing the design and development of sustainable fertilization strategies. Similarly, improved knowledge of the molecular and physiological functions of micronutrients will be important for breeding programmes aiming to develop new crop genotypes with improved nutrient‐use efficiency and resilience in the face of changing soil and climate conditions.

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“…54–58 In photosynthesis, NADH is produced by photocatalytic reduction of NAD + by plastoquinol (PQH 2 ) in photosystem I (PSI) [eqn (5)]. 59,60 On the other hand, PQH 2 is produced by photocatalytic reduction of plastoquinone (PQ) by H 2 O in photosystem II (PSII) [eqn (6)]. 61–63 In this review, the photocatalytic production of hydroquinone (QH 2 ) derivatives as plastoquinone analogues by H 2 using a PSII molecular functional model system is described together with a direct hydroquinone fuel cell in which a hydroquinone derivative is used as a fuel.S + H 2 → SH 2 2SH 2 + O 2 → 2S + 2H 2 ONAD + + H 2 → NADH + H + 2NADH + O 2 + 2H + → 2NAD + + 2H 2 ONAD + + PQH 2 → NADH + PQ + H + 2H 2 O + 2PQ → O 2 + 2PQH 2 …”

Section: Introductionmentioning

confidence: 99%