ArticlePlant cell reports2015
PCaP2 regulates nuclear positioning in growing Arabidopsis thaliana root hairs by modulating filamentous actin organization.
Article in Plant cell reports, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 24 citations in OpenAlex.
- Review
- Dynamics of Actin Filaments Play an Important Role in Root Hair Growth under Low Potassium Stress inInternational journal of molecular sciences · 2024Article
- Microtubule-associated ROP interactors affect microtubule dynamics and modulate cell wall patterning and root hair growth.Development (Cambridge, England) · 2022Article
- The bZIP Transcription Factor GmbZIP15 Negatively Regulates Salt- and Drought-Stress Responses in Soybean.International journal of molecular sciences · 2020Article
- GLABRA2 Regulates Actin Bundling Protein VILLIN1 in Root Hair Growth in Response to Osmotic Stress.Plant physiology · 2020Article
- TheThe Plant cell · 2020Article
- Actin Cytoskeleton as Actor in Upstream and Downstream of Calcium Signaling in Plant Cells.International journal of molecular sciences · 2019Review
- Arabidopsis PCaP2 Functions as a Linker Between ABA and SA Signals in Plant Water Deficit Tolerance.Frontiers in plant science · 2018Article
- Auxin and ROP GTPase Signaling of Polar Nuclear Migration in Root Epidermal Hair Cells.Plant physiology · 2018Article
- The Microtubule-Associated Protein MAP18 Affects ROP2 GTPase Activity during Root Hair Growth.Plant physiology · 2017Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
key messagePCaP2 plays a key role in maintaining the nucleus at a relatively fixed distance from the apex during root hair growth by modulating actin filaments. During root hair growth, the nucleus localizes at a relatively fixed distance from the apex. In Arabidopsis thaliana, the position of the nucleus is mainly dependent on the configuration of microfilaments (filamentous actin). However, the mechanisms underlying the regulation of actin dynamics and organization for nuclear positioning are largely unknown. In the present study, we demonstrated that plasma membrane-associated Ca(2+) binding protein 2 (PCaP2) influences the position of the nucleus during root hair growth. Abnormal expression of PCaP2 in pcap2 and PCaP2 over-expression plants led to the disorganization of actin filaments, rather than microtubules, in the apex and sub-apical regions of root hairs, which resulted in aberrant root hair growth patterns and misplaced nuclei. Analyses using a PCaP2 mutant protein revealed that actin-severing activity is essential for the function of PCaP2 in root hairs. We demonstrated that PCaP2 plays a key role in maintaining nuclear position in growing root hairs by modulating actin filaments.
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