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Proteome differences between CET-PSI mutants and WT

ABSTRACT: The results show that approximately 7 proteins were down-regulated, and approximately 6 proteins, including PGRL1A and PGRL1B, were up-regulated in pgr5 compared with pgrl1a1b. However, these differences were not statistically significant, indicating that the pgr5 and pgrl1a1b have similar changes in chloroplast proteome, which strongly correlates with their photosynthesis performances. However, under crr2 background mutation, both the down-regulation and up-regulation proteins significantly increased to 400 by about 57-fold and 326 by about 54-fold, respectively

ORGANISM(S): Arabidopsis Thaliana

SUBMITTER: Hualing Mi

PROVIDER: PXD034408 | iProX | Thu Jun 09 00:00:00 BST 2022

REPOSITORIES: iProX

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Inactivation of photosynthetic cyclic electron transports upregulates photorespiration for compensation of efficient photosynthesis in <i>Arabidopsis</i>.

Chen Qi Q Lan Yixin Y Li Qinghua Q Kong Mengmeng M Mi Hualing H

Frontiers in plant science 20230412

Plants have multiple mechanisms to maintain efficient photosynthesis. Photosynthetic cyclic electron transports around photosystem I (CET), which includes the PGR5/PGRL1 and NDH pathways, and photorespiration play a crucial role in photosynthetic efficiency. However, how these two mechanisms are functionally linked is not clear. In this study, we revealed that photorespiration could compensate for the function of CET in efficient photosynthesis by comparison of the growth phenotypes, photosynthe ...[more]

PMID: 37123850

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