ArticleAnnals of botany2014
The Arabidopsis thaliana FASCICLIN LIKE ARABINOGALACTAN PROTEIN 4 gene acts synergistically with abscisic acid signalling to control root growth.
Article in Annals of botany, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.
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45 citing papers in PubMed, 87 citations in OpenAlex.
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- Transcriptome analysis provides insights into the cell wall and aluminum toxicity related to rusty root syndrome ofFrontiers in plant science · 2023Article
- Lipid Rafts and Plant Gravisensitivity.Life (Basel, Switzerland) · 2022Review
- Arabinogalactan Proteins: Focus on the Role in Cellulose Synthesis and Deposition during Plant Cell Wall Biogenesis.International journal of molecular sciences · 2022Review
- OsFLA1 encodes a fasciclin-like arabinogalactan protein and affects pollen exine development in rice.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- The regulation of the cell wall by glycosylphosphatidylinositol-anchored proteins inFrontiers in cell and developmental biology · 2022Review
- Combined Abiotic Stresses Repress Defense and Cell Wall Metabolic Genes and Render Plants More Susceptible to Pathogen Infection.Plants (Basel, Switzerland) · 2021Article
- With an Ear Up against the Wall: An Update on Mechanoperception inPlants (Basel, Switzerland) · 2021Review
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- Physiological and Biochemical Traits of Two MajorFrontiers in plant science · 2021Article
- Arabinogalactan Proteins in Plant Roots - An Update on Possible Functions.Frontiers in plant science · 2021Review
- FASCICLIN-LIKE 18 Is a New Player Regulating Root Elongation inFrontiers in plant science · 2021Article
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Authors and funding
3 authors at 1 institution in 2 countries.
Funding
Abstract
BACKGROUND AND
aimsThe putative FASCICLIN-LIKE ARABINOGALACTAN PROTEIN 4 (At-FLA4) locus of Arabidopsis thaliana has previously been shown to be required for the normal growth of wild-type roots in response to moderately elevated salinity. However, the genetic and physiological pathway that connects At-FLA4 and normal root growth remains to be elucidated.
methodsThe radial swelling phenotype of At-fla4 was modulated with growth regulators and their inhibitors. The relationship of At-FLA4 to abscisic acid (ABA) signalling was analysed by probing marker gene expression and the observation of the At-fla4 phenotype in combination with ABA signalling mutants. KEY
resultsApplication of ABA suppresses the non-redundant role of At-FLA4 in the salt response. At-FLA4 positively regulates the response to low ABA concentration in roots and is required for the normal expression of ABA- and abiotic stress-induced genes. The At-fla4 phenotype is enhanced in the At-abi4 background, while two genetic suppressors of ABA-induced gene expression are required for salt oversensitivity of At-fla4. Salt oversensitivity in At-fla4 is suppressed by the CYP707A inhibitor abscinazole E2B, and salt oversensitivity in At-fla4 roots is phenocopied by chemical inhibition of ABA biosynthesis.
conclusionsThe predicted lipid-anchored glycoprotein At-FLA4 positively regulates cell wall biosynthesis and root growth by modulating ABA signalling.
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