ArticlePlant physiology2023
Formin protein DRT1 affects gross morphology and chloroplast relocation in rice.
Article in Plant physiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed, 12 citations in OpenAlex.
- Candidate genes identification for internode length in rice via genome-wide association studies.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2026Article
- 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
- Grain shape in rice: a Genome-wide association study of the effector genes.BMC plant biology · 2025Article
- OsBRK1-mediated phosphorylation of OsPFN2 regulates meiotic spindle-actin assembly and rice fertility.Plant communications · 2025Article
- Transmembrane formins as active cargoes of membrane trafficking.Journal of experimental botany · 2024Review
- Exploring the Role of the Plant Actin Cytoskeleton: From Signaling to Cellular Functions.International journal of molecular sciences · 2023Review
- Imaging of Chloroplast Movement Responses to Light Stimulation in Different Intensities in Rice.Bio-protocol · 2023Article
- Pieces of the 3D puzzle: Identification of genes underlying rice canopy architecture.Plant physiology · 2023Article
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Authors and funding
14 authors at 7 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Plant height and tiller number are two major factors determining plant architecture and yield. However, in rice (Oryza sativa), the regulatory mechanism of plant architecture remains to be elucidated. Here, we reported a recessive rice mutant presenting dwarf and reduced tillering phenotypes (drt1). Map-based cloning revealed that the phenotypes are caused by a single point mutation in DRT1, which encodes the Class I formin protein O. sativa formin homolog 13 (OsFH13), binds with F-actin, and promotes actin polymerization for microfilament organization. DRT1 protein localized on the plasma membrane (PM) and chloroplast (CP) outer envelope. DRT1 interacted with rice phototropin 2 (OsPHOT2), and the interaction was interrupted in drt1. Upon blue light stimulus, PM localized DRT1 and OsPHOT2 were translocated onto the CP membrane. Moreover, deficiency of DRT1 reduced OsPHOT2 internalization and OsPHOT2-mediated CP relocation. Our study suggests that rice formin protein DRT1/OsFH13 is necessary for plant morphology and CP relocation by modulating the actin-associated cytoskeleton network.
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