Light-driven CO2 assimilation by photosystem II and its relation to photosynthesis

Li, Yuehui; Si, Duan–Hui; Wang, Wangyin; Xue, Song; Shang, Wenzhe; Chi, Zhanyou; Li, Can; Chen, Hao; Govindjee, Govindjee; Shi, Yantao

doi:10.1016/s1872-2067(22)64170-6

Cited by 5 publications

(3 citation statements)

References 44 publications

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“…This observation suggests that O 2 is the resultant oxidation product. 35 Unfortunately, the content of O 2 is very low, and we have not yet determined the stoichiometric ratio of CO and O 2 in our experiments based on current measurements (GC and in situ MS).…”

Section: Resultsmentioning

confidence: 92%

Unveiling the key role of excited-state hydrogen bonding in homogeneous photocatalytic CO₂ reduction

Zhang,

Li,

Shang

et al. 2024

New J. Chem.

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Section: Resultsmentioning

confidence: 92%

Unveiling the key role of excited-state hydrogen bonding in homogeneous photocatalytic CO₂ reduction

Zhang,

Li,

Shang

et al. 2024

New J. Chem.

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“…The same correlation was also observed between g s sat and T r ( Fig 7B , 7D and 7F ). When g s sat decreases, T r would also decline [ 30 ]. Strong stomatal regulation can reduce water loss and help plants survive under prolonged drought stress and recover following re-watering [ 9 , 31 ].…”

Section: Discussionmentioning

confidence: 99%

Photosynthetic gas exchange, plant water relations and osmotic adjustment of three tropical perennials during drought stress and re-watering

He,

Ng,

Qin

et al. 2024

PLoS ONE

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Planting vegetation on slopes is an effective way of improving slope stability while enhancing the aesthetic appearance of the landscape. However, plants growing on slopes are susceptible to natural drought stress (DS) conditions which commonly lead to water deficit in plant tissues that affect plant health and growth. This study investigated the photosynthetic gas exchange, plant water status and proline accumulation of three tropical perennials namely Clerodendrum paniculatum, Ipomoea pes-caprae and Melastoma malabathricum after being subjected to DS and re-watering (RW). During DS, there was a significant decrease in light-saturated photosynthetic CO2 assimilation rate (Asat), stomatal conductance (gs sat), and transpiration rate (Tr) for all three plant species. Leaf relative water content, shoot water potential, and leaf, stem and root water content also declined during DS. Proline concentration increased for all three species during DS, reaching especially high levels for C. paniculatum, suggesting that it heavily relies on the accumulation of proline to cope with DS. Most of the parameters recovered almost completely to levels similar to well-watered plants after RW, apart from M. malabathricum. Strong linear correlations were found between Asat and gs sat and between gs sat and Tr. Ultimately, C. paniculatum and I. pes-caprae had better drought tolerance than M. malabathricum.

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“…The two phases of plant photosynthesis are known as the light and carbon reactions. The light reaction in higher plants is mainly caused by the cooperation of four transmembrane multi-subunit protein complexes located in the thylakoid membrane of the chloroplast: PSII, cytochrome b6f, PSI, and ATP synthase [30,31]. The unstable chemical energy (ATP and NADPH) generated via the light reaction is transformed by the carbon reaction into more stable forms that are kept in glucose molecules [32,33].…”

Section: Discussionmentioning

confidence: 99%

Comparative Transcriptome Analysis Reveals the Protective Role of Melatonin during Salt Stress by Regulating the Photosynthesis and Ascorbic Acid Metabolism Pathways in Brassica campestris

Shah,

Wang,

et al. 2024

IJMS

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Salinity stress is a type of abiotic stress which negatively affects the signaling pathways and cellular compartments of plants. Melatonin (MT) has been found to be a bioactive compound that can mitigate these adverse effects, which makes it necessary to understand the function of MT and its role in salt stress. During this study, plants were treated exogenously with 100 µM of MT for 7 days and subjected to 200 mM of salt stress, and samples were collected after 1 and 7 days for different indicators and transcriptome analysis. The results showed that salt reduced chlorophyll contents and damaged the chloroplast structure, which was confirmed by the downregulation of key genes involved in the photosynthesis pathway after transcriptome analysis and qRT-PCR confirmation. Meanwhile, MT increased the chlorophyll contents, reduced the electrolyte leakage, and protected the chloroplast structure during salt stress by upregulating several photosynthesis pathway genes. MT also decreased the H2O2 level and increased the ascorbic acid contents and APX activity by upregulating genes involved in the ascorbic acid pathway during salt stress, as confirmed by the transcriptome and qRT-PCR analyses. Transcriptome profiling also showed that 321 and 441 DEGs were expressed after 1 and 7 days of treatment, respectively. The KEGG enrichment analysis showed that 76 DEGs were involved in the photosynthesis pathway, while 35 DEGs were involved in the ascorbic acid metabolism pathway, respectively. These results suggest that the exogenous application of MT in plants provides important insight into understanding MT-induced stress-responsive mechanisms and protecting Brassica campestris against salt stress by regulating the photosynthesis and ascorbic acid pathway genes.

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Light-driven CO2 assimilation by photosystem II and its relation to photosynthesis

Cited by 5 publications

References 44 publications

Unveiling the key role of excited-state hydrogen bonding in homogeneous photocatalytic CO₂ reduction

Unveiling the key role of excited-state hydrogen bonding in homogeneous photocatalytic CO₂ reduction

Photosynthetic gas exchange, plant water relations and osmotic adjustment of three tropical perennials during drought stress and re-watering

Comparative Transcriptome Analysis Reveals the Protective Role of Melatonin during Salt Stress by Regulating the Photosynthesis and Ascorbic Acid Metabolism Pathways in Brassica campestris

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Light-driven CO2 assimilation by photosystem II and its relation to photosynthesis

Cited by 5 publications

References 44 publications

Unveiling the key role of excited-state hydrogen bonding in homogeneous photocatalytic CO2 reduction

Unveiling the key role of excited-state hydrogen bonding in homogeneous photocatalytic CO2 reduction

Photosynthetic gas exchange, plant water relations and osmotic adjustment of three tropical perennials during drought stress and re-watering

Comparative Transcriptome Analysis Reveals the Protective Role of Melatonin during Salt Stress by Regulating the Photosynthesis and Ascorbic Acid Metabolism Pathways in Brassica campestris

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Unveiling the key role of excited-state hydrogen bonding in homogeneous photocatalytic CO₂ reduction

Unveiling the key role of excited-state hydrogen bonding in homogeneous photocatalytic CO₂ reduction