2024
DOI: 10.1016/j.semcdb.2023.03.002
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Dark complexes of the Calvin-Benson cycle in a physiological perspective

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Cited by 13 publications
(6 citation statements)
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“…In addition to the overlapping regulators between the two GRNs, another five genes (PHOSPHORIBULOKINASE (PRK), AT5G65840, AT5G62140, AT1G66130 and GUN4) in the PSD network (note GUN4 and AT1G66130 had the same number of nodes in GRN, therefore in totally 11 overrepresented genes are shown in Figure 3.6 instead of 10). These five genes were shown to be relevant for photosynthesis or chloroplast activities (Larkin et al, 2003;Bosco et al, 2004;Ascencio-Ibáñez et al, 2008;Tarahi Tabrizi et al, 2016;Gurrieri et al, 2019Gurrieri et al, , 2023. This strengthens our previous notion that photo-acclimation or plastid-to-nucleus signaling might play a role in PSD acclimation.…”
Section: Identification Of Putative Regulatory Factors Mediating Accl...supporting
confidence: 83%
“…In addition to the overlapping regulators between the two GRNs, another five genes (PHOSPHORIBULOKINASE (PRK), AT5G65840, AT5G62140, AT1G66130 and GUN4) in the PSD network (note GUN4 and AT1G66130 had the same number of nodes in GRN, therefore in totally 11 overrepresented genes are shown in Figure 3.6 instead of 10). These five genes were shown to be relevant for photosynthesis or chloroplast activities (Larkin et al, 2003;Bosco et al, 2004;Ascencio-Ibáñez et al, 2008;Tarahi Tabrizi et al, 2016;Gurrieri et al, 2019Gurrieri et al, , 2023. This strengthens our previous notion that photo-acclimation or plastid-to-nucleus signaling might play a role in PSD acclimation.…”
Section: Identification Of Putative Regulatory Factors Mediating Accl...supporting
confidence: 83%
“…This implies that a slight decrease of PRK level or PRK activity would be sufficient to limit the CBBC in Chlamydomonas. This may allow PRK to play a more prominent role in the control of the CBBC turnover in Chlamydomonas, for example under conditions leading to light-dependent regulation of PRK activity mediated by thioredoxins and CP12 ( Gurrieri et al., 2021 ; Gurrieri et al., 2023 ). Nevertheless, the CBBC functioning is different in algae compared to land plants, particularly because a carbon-concentration mechanism (CCM) in the pyrenoid increases carbon fixation by Rubisco ( Barrett et al., 2021 ) and likely imposes a stronger requirement for RuBP production by PRK to sustain growth, especially in non-limiting light conditions.…”
Section: Discussionmentioning
confidence: 99%
“…These studies showed that, in vitro , this enzyme is tightly regulated by light through oxidoreduction of specific disulfides by thioredoxins. PRK activity is regulated both autonomously through reduction of an intramolecular disulfide by thioredoxin that couples PRK activity to light intensity, and non-autonomously through formation in the dark of an inhibitory supramolecular complex with the CP12 protein and the CBBC enzyme glyceraldehyde-3-phosphate dehydrogenase ( Gurrieri et al., 2021 ; Gurrieri et al., 2023 ). The formation and dissociation of the complex is under the control of thioredoxins through reduction of disulfides on CP12 and PRK ( Marri et al., 2008 ; Marri et al., 2009 ; Thieulin-Pardo et al., 2015 ).…”
Section: Introductionmentioning
confidence: 99%
“…Thus, many stromal enzymes evolved Cys-based redox-regulation [ 7 , 8 ]. This regulation of protein activity or oligomerization [ 9 ] can be mediated by post-translational changes in cysteinyl thiol redox states, including the formation/reduction of regulatory disulfide bonds on target proteins [ [10] , [11] , [12] ]. The thioredoxin (TRX) system derives electrons from the photosynthetic electron transport (PET) or NADPH for the reduction of specific regulatory disulfides on metabolic enzymes [ 13 ].…”
Section: Introductionmentioning
confidence: 99%