ArticleScientific reports2017
OsFH15, a class I formin, interacts with microfilaments and microtubules to regulate grain size via affecting cell expansion in rice.
Article in Scientific reports, 2017. 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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16 citing papers in PubMed, 35 citations in OpenAlex.
- FIMBRIN2 Regulates ABA-Induced Stomatal Closure by Promoting Microfilament Bundling and Turnover in Arabidopsis Guard Cells.Plant direct · 2026Article
- Whole-mount immunostaining that avoids cross-reaction between antibodies from different host species for simultaneous visualization of actin filaments and microtubules.Plant biotechnology (Tokyo, Japan) · 2025Article
- Transmembrane formins as active cargoes of membrane trafficking.Journal of experimental botany · 2024Review
- Genome-Wide Studies ofPlants (Basel, Switzerland) · 2024Article
- Cytological, transcriptome and miRNome temporal landscapes decode enhancement of rice grain size.BMC biology · 2023Article
- Formin protein DRT1 affects gross morphology and chloroplast relocation in rice.Plant physiology · 2023Article
- ETHYLENE RESPONSE FACTOR 34 promotes secondary cell wall thickening and strength of rice peduncles.Plant physiology · 2022Article
- Controlling the Gate: The Functions of the Cytoskeleton in Stomatal Movement.Frontiers in plant science · 2022Review
- Article
- The parent-of-origin lncRNA MISSEN regulates rice endosperm development.Nature communications · 2021Article
- Genetic Structure and Geographical Differentiation of Traditional Rice (Plants (Basel, Switzerland) · 2021Article
- Article
- Arabidopsis Class II Formins AtFH13 and AtFH14 Can Form Heterodimers but Exhibit Distinct Patterns of Cellular Localization.International journal of molecular sciences · 2020Article
- Complementary Superresolution Visualization of Composite Plant Microtubule Organization and Dynamics.Frontiers in plant science · 2020Article
- Arabidopsis class I formins control membrane-originated actin polymerization at pollen tube tips.PLoS genetics · 2018Article
- An Immune-Responsive Cytoskeletal-Plasma Membrane Feedback Loop in Plants.Current biology : CB · 2018Article
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Authors and funding
3 authors at 1 institution in 1 country.
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Abstract
Grain size is an important agronomic trait determining rice yield and is mainly restricted by spikelet hull size. However, it remains largely unknown how the spikelet hull size is regulated. In this study, OsFH15, a class I formin protein in Oryza sativa, was found to be able to regulate the size of cells and spikelet hull. OsFH15-Cas9 and OsFH15-RNAi mutants had decreased grain size with reduced cell length, cell width and cell area of inner epidermal cells of the lemma compared with wild-type plants. By contrast, OsFH15-overexpressed plants had increased grain size with larger cells, as well as more abundant microtubules (MTs) and actin filaments (AFs) arrays. OsFH15 was mainly expressed in shoot apical meristem (SAM), spikelets, spikelet hulls and seeds in rice. In vitro biochemical experiments showed that OsFH15 can efficiently nucleate actin polymerization with or without profilin, can cap the barbed end of AFs, and can bind and bundle both AFs and MTs. OsFH15 can also crosslink AFs with MTs, and preferentially bind MTs to AFs. These results demonstrated that OsFH15 played an important role in grain-size control by affecting cell expansion through regulating AFs and MTs.
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