ArticleAnnals of botany2010
The AUX1 LAX family of auxin influx carriers is required for the establishment of embryonic root cell organization in Arabidopsis thaliana.
Article in Annals of botany, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.
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51 citing papers in PubMed, 126 citations in OpenAlex.
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- Endogenous auxin maintains embryonic cell identity and promotes somatic embryo development in Arabidopsis.The Plant journal : for cell and molecular biology · 2023Article
- A blast from the past: Understanding stem cell specification in plant roots using laser ablation.Quantitative plant biology · 2023Article
- Histone Acetyltransferase GCN5 Affects Auxin Transport during Root Growth by Modulating Histone Acetylation and Gene Expression of PINs.Plants (Basel, Switzerland) · 2022Article
- Mitochondrial GPAT-derived LPA controls auxin-dependent embryonic and postembryonic development.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Genetic dissection of seed characteristics in field pennycress via genome-wide association mapping studies.The plant genome · 2022Article
- Regulatory Networks of Flowering Genes inPlants (Basel, Switzerland) · 2022Article
- Identification, Phylogenetic and Expression Analyses of theInternational journal of molecular sciences · 2022Article
- Transcriptome Analysis of Developing Wheat Grains at Rapid Expanding Phase Reveals Dynamic Gene Expression Patterns.Biology · 2022Article
- Genome-Wide Expression Analysis of Root Tips in Contrasting Rice Genotypes Revealed Novel Candidate Genes for Water Stress Adaptation.Frontiers in plant science · 2022Article
- Genome-wide identification and expression analysis ofFrontiers in plant science · 2022Article
- Promoter profiling of Arabidopsis amino acid transporters: clues for improving crops.Plant molecular biology · 2021Review
- Actin Isovariant ACT7 Modulates Root Thermomorphogenesis by Altering Intracellular Auxin Homeostasis.International journal of molecular sciences · 2021Article
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
Abstract
BACKGROUND AND
aimsThe root meristem of the Arabidopsis thaliana mature embryo is a highly organized structure in which individual cell shape and size must be regulated in co-ordination with the surrounding cells. The objective of this study was to determine the role of the AUX1 LAX family of auxin import carriers during the establishment of the embryonic root cell pattern.
methodsThe radicle apex of single and multiple aux1 lax mutant mature embryos was used to evaluate the effect of this gene family upon embryonic root organization and root cap size, cell number and cell size. KEY
resultsIt was demonstrated here that mutations within the AUX1 LAX family are associated with changes in cell pattern establishment in the embryonic quiescent centre and columella. aux1 lax mutants have a larger radicle root cap than the wild type and this is associated with a significant increase in the root-cap cell number, average cell size, or both. Extreme disorganization of the radicle apex was observed among quadruple aux1 lax1 lax2 lax3 mutant embryos, but not in single aux1 null or in lax1, lax2 and lax3 single mutants, indicating redundancy within the AUX1 LAX family.
conclusionsIt was determined that the AUX1 LAX family of auxin influx facilitators participates in the establishment of cell pattern within the apex of the embryonic root in a gene-redundant fashion. It was demonstrated that aux1 lax mutants are affected in cell proliferation and cell growth within the radicle tip. Thus AUX1 LAX auxin importers emerge as new players in morphogenetic processes involved in patterning during embryonic root formation.
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