ArticleThe Plant cell2015
VLN2 Regulates Plant Architecture by Affecting Microfilament Dynamics and Polar Auxin Transport in Rice.
Article in The Plant cell, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 39 papers.
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39 citing papers in PubMed, 50 citations in OpenAlex.
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- A root system architecture regulator modulates OsPIN2 polar localization in rice.Nature communications · 2025Article
- Morphometric analysis of actin networks.Molecular biology of the cell · 2024Article
- MYB52 negatively regulates ADF9-meditated actin filament bundling in Arabidopsis pavement cell morphogenesis.Journal of integrative plant biology · 2024Article
- Dynamics of Actin Filaments Play an Important Role in Root Hair Growth under Low Potassium Stress inInternational journal of molecular sciences · 2024Article
- High-resolution genetic linkage map and height-related QTLs in an oil palm (Physiology and molecular biology of plants : an international journal of functional plant biology · 2023Article
- Genome-Wide Identification and Expression Analysis of thePlants (Basel, Switzerland) · 2023Article
- VILLIN2 regulates cotton defense against Verticillium dahliae by modulating actin cytoskeleton remodeling.Plant physiology · 2023Article
- Genome-wide association analysis for emergence of deeply sown rice (Frontiers in plant science · 2023Article
- Identification of QTNs, QTN-by-environment interactions, and their candidate genes for grain size traits in main crop and ratoon rice.Frontiers in plant science · 2023Article
- The Integration of Genome-Wide Association Study and Homology Analysis to Explore the Genomic Regions and Candidate Genes for Panicle-Related Traits in Foxtail Millet.International journal of molecular sciences · 2022Article
- Root angle is controlled byProceedings of the National Academy of Sciences of the United States of America · 2022Article
- Dissection of the genetic architecture of peduncle vascular bundle-related traits in maize by a genome-wide association study.Plant biotechnology journal · 2022Article
- Rice STOMATAL CYTOKINESIS DEFECTIVE2 regulates cell expansion by affecting vesicular trafficking in rice.Plant physiology · 2022Article
- QTL Validation and Development of SNP-Based High Throughput Molecular Markers Targeting a Genomic Region Conferring Narrow Root Cone Angle in Aerobic Rice Production Systems.Plants (Basel, Switzerland) · 2021Article
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14 authors at 3 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
As a fundamental and dynamic cytoskeleton network, microfilaments (MFs) are regulated by diverse actin binding proteins (ABPs). Villins are one type of ABPs belonging to the villin/gelsolin superfamily, and their function is poorly understood in monocotyledonous plants. Here, we report the isolation and characterization of a rice (Oryza sativa) mutant defective in VILLIN2 (VLN2), which exhibits malformed organs, including twisted roots and shoots at the seedling stage. Cellular examination revealed that the twisted phenotype of the vln2 mutant is mainly caused by asymmetrical expansion of cells on the opposite sides of an organ. VLN2 is preferentially expressed in growing tissues, consistent with a role in regulating cell expansion in developing organs. Biochemically, VLN2 exhibits conserved actin filament bundling, severing and capping activities in vitro, with bundling and stabilizing activity being confirmed in vivo. In line with these findings, the vln2 mutant plants exhibit a more dynamic actin cytoskeleton network than the wild type. We show that vln2 mutant plants exhibit a hypersensitive gravitropic response, faster recycling of PIN2 (an auxin efflux carrier), and altered auxin distribution. Together, our results demonstrate that VLN2 plays an important role in regulating plant architecture by modulating MF dynamics, recycling of PIN2, and polar auxin transport.
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