ArticleThe Plant cell2025
Editing of rice PSEUDO-ETIOLATION IN LIGHT microProtein genes promotes chloroplast development.
Article in The Plant cell, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Negative Regulators of Rice Agronomic Traits: Functional Insights and Applications in Genome Editing-Based Breeding.Plant biotechnology journal · 2026Review
- An OsGLK1/2-DGP1/2/3 feedback module regulates rice photosynthesis and yield.Science advances · 2026Article
- tRUBY: A convenient in planta tool for the detection of protein-DNA and protein-protein interactions.Molecules and cells · 2026Article
- Regulation of chloroplast biogenesis and differentiation.Journal of experimental botany · 2026Review
- The combined effects of Golden2-like 2 and Pseudo-Response Regulator 2 control the fruit pigmentation in pepper.The Plant journal : for cell and molecular biology · 2026Article
- Beyond the PEL surveyance: Genome editing of the OsPEL family enhances photosynthesis efficiency in rice.The Plant cell · 2025Article
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Authors and funding
5 authors.
Funding
Abstract
The rice (Oryza sativa) PSEUDO-ETIOLATION IN LIGHT (OsPEL) microProtein family members function as dominant-negative regulators of chloroplast development and are conserved among land plants. Knockout of all 3 OsPEL genes enhanced plant greening traits and was accompanied by leaf anatomical modifications associated with chloroplast-enriched bundle sheath cells in rice. These phenotypic changes correlated with increased CO2 assimilation efficiency and yield. OsPEL1 specifically interacts with key positive regulators of photosynthesis, the rice GOLDEN2-LIKE (OsGLK) transcription factors and the PHOTOSYSTEM I ASSEMBLY 2 (OsPSA2) chaperone. OsPEL1 inhibits these regulators by sequestering OsGLK1 and OsPSA2 in the cytoplasm, which prevents their proper localization to the nucleus and chloroplast, respectively. Supported by RNA-seq evidence of transcriptional homeostasis in greening-related genes, we reveal a multilayered regulatory mechanism and identify the OsPEL family as a promising target for crop improvement.
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