ArticleThe Plant cell2001
One plant actin isovariant, ACT7, is induced by auxin and required for normal callus formation.
Article in The Plant cell, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 46 papers.
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Who cites it
46 citing papers in PubMed.
- Cytoskeletal control of development and environmental adaptation in plants.Science China. Life sciences · 2026Review
- Exploring the Role of the Plant Actin Cytoskeleton: From Signaling to Cellular Functions.International journal of molecular sciences · 2023Review
- Actin-Depolymerizing Factor Gene Family Analysis Revealed ThatPlants (Basel, Switzerland) · 2023Article
- The Shared Proteome of the Apomictic FernInternational journal of molecular sciences · 2022Article
- A Comprehensive Analysis of the DUF4228 Gene Family inInternational journal of molecular sciences · 2022Article
- CINCINNATA-Like TCP Transcription Factors in Cell Growth - An Expanding Portfolio.Frontiers in plant science · 2022Review
- Actin Isovariant ACT7 Modulates Root Thermomorphogenesis by Altering Intracellular Auxin Homeostasis.International journal of molecular sciences · 2021Article
- Bundling up the Role of the Actin Cytoskeleton in Primary Root Growth.Frontiers in plant science · 2021Review
- Lipid Body Dynamics in Shoot Meristems: Production, Enlargement, and Putative Organellar Interactions and Plasmodesmal Targeting.Frontiers in plant science · 2021Article
- Temperature Regulation of Primary and Secondary Seed Dormancy inInternational journal of molecular sciences · 2020Article
- ACTIN7 Is Required for Perinuclear Clustering of Chloroplasts during Arabidopsis Protoplast Culture.Plants (Basel, Switzerland) · 2020Article
- Cytoskeletal Control of Planar Polarity in Root Hair Development.Frontiers in plant science · 2020Article
- NaCl-responsive ROS scavenging and energy supply in alkaligrass callus revealed from proteomic analysis.BMC genomics · 2019Article
- Recombinant Production of MFHR1, A Novel Synthetic Multitarget Complement Inhibitor, in Moss Bioreactors.Frontiers in plant science · 2019Article
- Actin Reorganization Triggers Rapid Cell Elongation in Roots.Plant physiology · 2018Article
- Arabidopsis vegetative actin isoforms, AtACT2 and AtACT7, generate distinct filament arrays in living plant cells.Scientific reports · 2018Article
- Endogenous auxin and its manipulation influenceHorticulture research · 2017Article
- Microfilament Depolymerization Is a Pre-requisite for Stem Cell Formation DuringFrontiers in plant science · 2017Article
- Comparative proteomic study of Arabidopsis mutants mpk4 and mpk6.Scientific reports · 2016Article
- Root proteomics reveals cucumber 24-epibrassinolide responses under Ca(NO3)2 stress.Plant cell reports · 2016Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
During plant growth and development, the phytohormone auxin induces a wide array of changes that include cell division, cell expansion, cell differentiation, and organ initiation. It has been suggested that the actin cytoskeleton plays an active role in the elaboration of these responses by directing specific changes in cell morphology and cytoarchitecture. Here we demonstrate that the promoter and the protein product of one of the Arabidopsis vegetative actin genes, ACT7, are rapidly and strongly induced in response to exogenous auxin in the cultured tissues of Arabidopsis. Homozygous act7-1 mutant plants were slow to produce callus tissue in response to hormones, and the mutant callus contained at least two to three times lower levels of ACT7 protein than did the wild-type callus. On the other hand, a null mutation in ACT2, another vegetative actin gene, did not significantly affect callus formation from leaf or root tissue. Complementation of the act7-1 mutants with the ACT7 genomic sequence restored their ability to produce callus at rates similar to those of wild-type plants, confirming that the ACT7 gene is required for callus formation. Immunolabeling of callus tissue with actin subclass-specific antibodies revealed that the predominant ACT7 is coexpressed with the other actin proteins. We suggest that the coexpression, and probably the copolymerization, of the abundant ACT7 with the other actin isovariants in cultured cells may facilitate isovariant dynamics well suited for cellular responses to external stimuli such as hormones.
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