ArticlePhotosynthesis research2018
UMP kinase activity is involved in proper chloroplast development in rice.
Article in Photosynthesis research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 27 citations in OpenAlex.
- Dehydrogenase WRD1 regulates plant growth by modulating cell wall formation, ROS homeostasis, and auxin signaling in rice.The Plant journal : for cell and molecular biology · 2026Article
- γ-Aminobutyric Acid (GABA) enhances heat tolerance in rice via integrated antioxidant defense, metabolic homeostasis and heat shock response.BMC plant biology · 2026Article
- Rice Cytochrome P450 Protein CYP71P1 Is Required for Heat Stress Tolerance by Regulating Serotonin Biosynthesis and ROS Homeostasis.Plants (Basel, Switzerland) · 2025Article
- Three Arabidopsis UMP kinases have different roles in pyrimidine nucleotide biosynthesis and (deoxy)CMP salvage.The Plant cell · 2024Article
- Genetic mapping and molecular characterization of the delayed green geneFrontiers in plant science · 2023Article
- A splicing site change between exon 5 and 6 of the nuclear-encoded chloroplast-localizedFrontiers in plant science · 2023Article
- Transcriptional reprogramming of nucleotide metabolism in response to altered pyrimidine availability in Arabidopsis seedlings.Frontiers in plant science · 2023Article
- Light Intensity- and Spectrum-Dependent Redox Regulation of Plant Metabolism.Antioxidants (Basel, Switzerland) · 2022Review
- Integrating physiology, genetics, and transcriptome to decipher a new thermo-sensitive and light-sensitive virescent leaf gene mutant in cucumber.Frontiers in plant science · 2022Article
- A β-ketoacyl carrier protein reductase confers heat tolerance via the regulation of fatty acid biosynthesis and stress signaling in rice.The New phytologist · 2021Article
- Article
- Formyl tetrahydrofolate deformylase affects hydrogen peroxide accumulation and leaf senescence by regulating the folate status and redox homeostasis in rice.Science China. Life sciences · 2021Article
- Genetic mapping of green curd gene Gr in cauliflower.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2020Article
- Nucleotide Metabolism in Plants.Plant physiology · 2020Article
- UMP Kinase Regulates Chloroplast Development and Cold Response in Rice.International journal of molecular sciences · 2019Article
- PUMPKIN, the Sole Plastid UMP Kinase, Associates with Group II Introns and Alters Their Metabolism.Plant physiology · 2019Article
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Authors and funding
11 authors at 3 institutions in 1 country.
Funding
Abstract
Isolation of leaf-color mutants is important in understanding the mechanisms of chloroplast biogenesis and development. In this study, we identified and characterized a rice (Oryza sativa) mutant, yellow leaf 2 (yl2), exhibiting pale yellow leaves with a few longitudinal white stripes at the early seedling stage then gradually turning yellow. Genetic analyses revealed that YL2 encodes a thylakoid membrane-localized protein with significant sequence similarity to UMP kinase proteins in prokaryotes and eukaryotes. Prokaryotic UMP kinase activity was subsequently confirmed, with YL2 deficiency causing a significant reduction in chlorophyll accumulation and photochemical efficiency. Moreover, YL2 is also light dependent and preferentially expressed in green tissues. Chloroplast development was abnormal in the yl2 mutant, possibly due to reduced accumulation of thylakoid membranes and a lack of normal stroma lamellae. 2D Blue-Native SDS-PAGE and immunoblot analyses revealed a reduction in several subunits of photosynthetic complexes, in particular, the AtpB subunit of ATP synthase, while mRNA levels of corresponding genes were unchanged or increased compared with the wild type. In addition, we observed a significant decrease (ca. 36.3%) in cpATPase activity in the yl2 mutant compared with the wild type. Taken together, our results suggest that UMP kinase activity plays an essential role in chloroplast development and regulating cpATPase biogenesis in rice.
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