ArticleThe Plant journal : for cell and molecular biology2009
Interplay between SCARECROW, GA and LIKE HETEROCHROMATIN PROTEIN 1 in ground tissue patterning in the Arabidopsis root.
Article in The Plant journal : for cell and molecular biology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers.
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55 citing papers in PubMed, 120 citations in OpenAlex.
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- Transcriptional control of hydrogen peroxide homeostasis regulates ground tissue patterning in theFrontiers in plant science · 2023Article
- Salicylic Acid in Root Growth and Development.International journal of molecular sciences · 2022Review
- It's Time for a Change: The Role of Gibberellin in Root Meristem Development.Frontiers in plant science · 2022Review
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- GmBTB/POZ promotes the ubiquitination and degradation of LHP1 to regulate the response of soybean to Phytophthora sojae.Communications biology · 2021Article
- Article
- Root Patterning: Tuning SHORT ROOT Function Creates Diversity in Form.Frontiers in plant science · 2021Review
- TheDevelopment (Cambridge, England) · 2020Article
- Nuclear import of LIKE HETEROCHROMATIN PROTEIN1 is redundantly mediated by importins α-1, α-2 and α-3.The Plant journal : for cell and molecular biology · 2020Article
- Genome-wide identification of GRAS genes in Brachypodium distachyon and functional characterization of BdSLR1 and BdSLRL1.BMC genomics · 2019Article
- Article
- Histone Deacetylase HDA19 Affects Root Cortical Cell Fate by Interacting with SCARECROW.Plant physiology · 2019Article
- Gibberellins negatively regulate the development of Medicago truncatula root system.Scientific reports · 2019Article
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2 authors at 1 institution in 1 country.
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Abstract
Regulated cell division is critical for the development of multi-cellular organisms. In the Arabidopsis root, SCARECROW (SCR) is required for the first cell division, but represses the subsequent, longitudinal asymmetric cell divisions that generate the two cell types of the ground tissue - cortex and endodermis. To elucidate the molecular basis of the role of SCR in ground tissue patterning, we screened for SCR-interacting proteins using the yeast two-hybrid method. A number of putative SCR-interacting proteins were identified, among them LIKE HETEROCHROMATIN PROTEIN 1 (LHP1). In lhp1 mutants, a second longitudinal asymmetric cell division occurs in the ground tissue earlier than in wild-type plants. Similar to the scr mutant, this premature middle cortex phenotype is suppressed by the phytohormone gibberellin (GA). We provide evidence that the N-terminal domain of SCR is required for the interaction between SCR and LHP1 as well as with other interacting partners, and that this domain is essential for repression of asymmetric cell divisions. Consistent with a role for GA in cortex proliferation, mutants of key GA signaling components produce a middle cortex precociously. Intriguingly, we found that the spindly (spy) mutant has a similar middle cortex phenotype. As SPY homologs in animals physically interact with histone deacetylase, we examined the role of histone deacetylation in middle cortex formation. We show that inhibition of histone deacetylase activity causes premature middle cortex formation in wild-type roots. Together, these results suggest that epigenetic regulation is probably the common basis for SCR and GA activity in cortex cell proliferation.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.