ArticlePlant physiology2007
A novel nucleus-encoded chloroplast protein, PIFI, is involved in NAD(P)H dehydrogenase complex-mediated chlororespiratory electron transport in Arabidopsis.
Article in Plant physiology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 15 papers.
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15 citing papers in PubMed, 65 citations in OpenAlex.
- Genome-Wide Identification of GmPIF Family and Regulatory Pathway Analysis of GmPIF3g in Different Temperature Environments.International journal of molecular sciences · 2025Article
- Methyl viologen-induced changes in the Arabidopsis proteome implicate PATELLIN 4 in oxidative stress responses.Journal of experimental botany · 2024Article
- Leaf Proteomic Analysis in Seedlings of Two Maize Landraces with Different Tolerance to Boron Toxicity.Plants (Basel, Switzerland) · 2023Article
- The tomato chloroplast stromal proteome compendium elucidated by leveraging a plastid protein-localization prediction Atlas.Frontiers in plant science · 2023Article
- A WheatInternational journal of molecular sciences · 2021Article
- Comparative proteomic analysis reveals that the Heterosis of two maize hybrids is related to enhancement of stress response and photosynthesis respectively.BMC plant biology · 2021Article
- Nitric Oxide Enhancing Resistance to PEG-Induced Water Deficiency is Associated with the Primary Photosynthesis Reaction inInternational journal of molecular sciences · 2018Article
- Protein Degradation Rate inThe Plant cell · 2017Article
- Accumulation of the components of cyclic electron flow around photosystem I in C4 plants, with respect to the requirements for ATP.Photosynthesis research · 2016Review
- Activity, polypeptide and gene identification of thylakoid Ndh complex in trees: potential physiological relevance of fluorescence assays.Physiologia plantarum · 2012Article
- Integrating microarray analysis and the soybean genome to understand the soybeans iron deficiency response.BMC genomics · 2009Article
- Chlororespiration and grana hyperstacking: how an Arabidopsis double mutant can survive despite defects in starch biosynthesis and daily carbon export from chloroplasts.Plant physiology · 2009Article
- Consequences of C4 differentiation for chloroplast membrane proteomes in maize mesophyll and bundle sheath cells.Molecular & cellular proteomics : MCP · 2008Article
- Electron transport activities of Arabidopsis thaliana mutants with impaired chloroplastic NAD(P)H dehydrogenase.Journal of plant research · 2008Article
- Cool C4 photosynthesis: pyruvate Pi dikinase expression and activity corresponds to the exceptional cold tolerance of carbon assimilation in Miscanthus x giganteus.Plant physiology · 2008Article
Corrections and comments
- Erratum issued
Authors and funding
2 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
A transient rise in chlorophyll fluorescence after turning off actinic light reflects nonphotochemical reduction of the plastoquinone (PQ) pool. This process is dependent on the activity of the chloroplast NAD(P)H dehydrogenase (NDH) complex, which mediates electron flow from stromal reductants to the PQ pool. In this study, we characterized an Arabidopsis (Arabidopsis thaliana) T-DNA insertion mutant pifi (for postillumination chlorophyll fluorescence increase), which possesses an intact NDH complex, but lacks the NDH-dependent chlorophyll fluorescence increase after turning off actinic light. The nuclear gene PIFI (At3g15840) containing the T-DNA insertion encodes a chloroplast-targeted protein localized in the stroma and is annotated as a protein of unknown function. The pifi mutant exhibited a lower capacity for nonphotochemical quenching, but similar CO(2) assimilation rates, photosystem II (PSII) quantum efficiencies (PhiPSII), and reduction levels of the primary electron acceptor of PSII (1 - qL) as compared with the wild type. The pifi mutant grows normally under optimal conditions, but exhibits greater sensitivity to photoinhibition and long-term mild heat stress than wild-type plants, which is consistent with lower capacity of nonphotochemical quenching. We conclude that PIFI is a novel component essential for NDH-mediated nonphotochemical reduction of the PQ pool in chlororespiratory electron transport.
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