Interplay of Circadian Rhythms and Light in the Regulation of Photosynthesis-Derived Metabolism

Jones, Matthew A.

doi:10.1007/124_2017_2

Cited by 5 publications

(6 citation statements)

References 146 publications

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“… Jones (2017) described that crassulacean acid metabolism (CAM) photosynthetic pathway allows enhanced productivity of water usage by isolating the carbon dioxide fixation for the opening of stomata during the daytime, and it closes the stomata and controls the water loss. Thus, these CAM plants open their stomata and fix the carbon dioxide with the aid of phosphoenolpyruvate carboxylase (PPC) and malate dehydrogenase activity during nighttime ( Boxall et al, 2020 ).…”

Section: Regulation Of Photosynthesis By Circadian Rhythmmentioning

confidence: 99%

Role of Circadian Rhythms in Major Plant Metabolic and Signaling Pathways

Venkat

Muneer

2022

Front. Plant Sci.

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Plants require an endogenous regulatory network and mechanism to cope with diurnal environmental changes and compensate for their sessile nature. Plants use the circadian clock to anticipate diurnal changes. Circadian rhythm predicts a 24-h cycle with 16 h of light and 8 h of darkness in response to abiotic and biotic factors as well as the appropriate temperature. For a plant’s fitness, proper growth, and development, these rhythms synchronize the diurnal photoperiodic changes. Input pathway, central oscillator, and output pathway are the three components that make up the endogenous clock. There are also transcriptional and translational feedback loops (TTFLs) in the clock, which are dependent on the results of gene expression. Several physiological processes, such as stress acclimatization, hormone signaling, morphogenesis, carbon metabolism, and defense response, are currently being investigated for their interactions with the circadian clock using phenotypic, genomic, and metabolic studies. This review examines the role of circadian rhythms in the regulation of plant metabolic pathways, such as photosynthesis and carbon metabolism, as well as developmental and degenerative processes, such as flowering and senescence. Furthermore, we summarized signaling pathways related to circadian rhythms, such as defense response and gene regulatory pathways.

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Section: Regulation Of Photosynthesis By Circadian Rhythmmentioning

confidence: 99%

Role of Circadian Rhythms in Major Plant Metabolic and Signaling Pathways

Venkat

Muneer

2022

Front. Plant Sci.

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“…Subsequently, a complex of proteins, including EARLY FLOWERING4 (ELF4), act to repress circadian gene expression during the early night (McWatters et al, 2007;Nusinow et al, 2011;Chow et al, 2012;Herrero et al, 2012). The oscillations generated by these feedback loops modulate many physiological processes including growth, photosynthesis, flowering time, and responses to biotic and abiotic stresses (Dong et al, 2011;Eriksson and Webb, 2011;Hsu and Harmer, 2014;Song et al, 2015;Jones, 2017).…”

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confidence: 99%

3′-Phosphoadenosine 5′-Phosphate Accumulation Delays the Circadian System

2018

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The circadian system optimizes cellular responses to stress, but the signaling pathways that convey the metabolic consequences of stress into this molecular timekeeping mechanism remain unclear. Redox regulation of the SAL1 phosphatase during abiotic stress initiates a signaling pathway from chloroplast to nucleus by regulating the accumulation of a metabolite, 3'-phosphoadenosine 5'-phosphate (PAP). Consequently, PAP accumulates in response to redox stress and inhibits the activity of exoribonucleases (XRNs) in the nucleus and cytosol. We demonstrated that osmotic stress induces a lengthening of circadian period and that genetically inducing the SAL1-PAP-XRN pathway in plants lacking either SAL1 or XRNs similarly delays the circadian system. Exogenous application of PAP was also sufficient to extend circadian period. Thus, SAL1-PAP-XRN signaling likely regulates circadian rhythms in response to redox stress. Our findings exemplify how two central processes in plants, molecular timekeeping and responses to abiotic stress, can be interlinked to regulate gene expression.

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“…Plants sense light via specific photoreceptors and also indirectly via the acquisition of photoassimilates from photosynthesis (Jones, ). The red light‐sensitive phytochromes, as well as the blue light‐sensitive cryptochrome and phototropin families have been well described (Christie et al, ; Rockwell, Su, & Lagarias, ), but previous studies have described only limited roles for green light in plant development (Wang et al, ).…”

Section: Resultsmentioning

confidence: 99%

Cryptochromes integrate green light signals into the circadian system

Battle

Jones

2019

Plant Cell & Environment

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Plants are acutely sensitive of their light environment, adapting their growth habit and prioritizing developmental decisions to maximize fecundity. In addition to providing an energy source and directional information, light quality also contributes to entrainment of the circadian system, an endogenous timing mechanism that integrates endogenous and environmental signalling cues to promote growth. Whereas plants' perception of red and blue portions of the spectrum are well defined, green light sensitivity remains enigmatic. In this study, we show that low fluence rates of green light are sufficient to entrain and maintain circadian rhythms in Arabidopsis and that cryptochromes contribute to this response. Importantly, green light responses are distinguishable from low blue light‐induced phenotypes. These data suggest a distinct signalling mechanism enables entrainment of the circadian system in green light‐enriched environments, such as those found in undergrowth and in densely planted monoculture.

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Interplay of Circadian Rhythms and Light in the Regulation of Photosynthesis-Derived Metabolism

Cited by 5 publications

References 146 publications

Role of Circadian Rhythms in Major Plant Metabolic and Signaling Pathways

Role of Circadian Rhythms in Major Plant Metabolic and Signaling Pathways

3′-Phosphoadenosine 5′-Phosphate Accumulation Delays the Circadian System

Cryptochromes integrate green light signals into the circadian system

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