ArticleThe Plant cell2010
Environmental regulation of lateral root emergence in Medicago truncatula requires the HD-Zip I transcription factor HB1.
Article in The Plant cell, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 74 papers.
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Who cites it
74 citing papers in PubMed, 205 citations in OpenAlex.
- Symbiosis signalling genes negatively regulate root responses to salt stress via the CCaMK-IPD3 module in Medicago truncatula.Journal of experimental botany · 2026Article
- Genome-wide identification and transcription profiling of safflower (Carthamus tinctorius L.) HD-ZIP gene family under water deficit.BMC genomics · 2025Article
- The LBD Transcription FactorPlants (Basel, Switzerland) · 2025Article
- Salt stress-accelerated proteasomal degradation of LBD11 suppresses ROS-mediated meristem development and root growth in Arabidopsis.Plant communications · 2025Article
- Temporal transcriptome and WGCNA analysis unveils divergent drought response strategies in wild and cultivatedFrontiers in plant science · 2025Article
- The Class I HD-ZIP transcription factor PagHB7a functions as a positive regulator of salt tolerance inForestry research · 2025Article
- Functional and regulatory diversity of homeobox-leucine zipper transcription factors BnaHB6 under dehydration and salt stress in Brassica napus L.Plant molecular biology · 2024Article
- Article
- ThePlants (Basel, Switzerland) · 2024Article
- AFrontiers in plant science · 2024Article
- Genome-wide identification and analysis of the HD-Zip transcription factor family in oats.Frontiers in molecular biosciences · 2024Article
- Article
- Evolutionary Consequences of Functional and Regulatory Divergence of HD-Zip I Transcription Factors as a Source of Diversity in Protein Interaction Networks in Plants.Journal of molecular evolution · 2023Review
- Genome-wide identification, bioinformatics and expression analysis of HD-Zip gene family in peach.BMC plant biology · 2023Article
- Temperature increase modifies susceptibility to Verticillium wilt inFrontiers in plant science · 2023Article
- Overexpression ofInternational journal of molecular sciences · 2022Article
- Article
- Identification and characterization of stress responsive homeodomain leucine zipper transcription factors in Medicago truncatula.Molecular biology reports · 2022Article
- The regulatory role of abscisic acid on cadmium uptake, accumulation and translocation in plants.Frontiers in plant science · 2022Review
- Overexpression ofFrontiers in plant science · 2022Article
14 more citing papers are in PubMed but not listed here.
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Authors and funding
7 authors at 5 institutions in 2 countries.
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No grant is acknowledged in the PubMed record.
Abstract
The adaptation of root architecture to environmental constraints is a major agricultural trait, notably in legumes, the third main crop worldwide. This root developmental plasticity depends on the formation of lateral roots (LRs) emerging from primary roots. In the model legume Medicago truncatula, the HD-Zip I transcription factor HB1 is expressed in primary and lateral root meristems and induced by salt stress. Constitutive expression of HB1 in M. truncatula roots alters their architecture, whereas hb1 TILLING mutants showed increased lateral root emergence. Electrophoretic mobility shift assay, promoter mutagenesis, and chromatin immunoprecipitation-PCR assays revealed that HB1 directly recognizes a CAATAATTG cis-element present in the promoter of a LOB-like (for Lateral Organ Boundaries) gene, LBD1, transcriptionally regulated by auxin. Expression of these genes in response to abscisic acid and auxin and their behavior in hb1 mutants revealed an HB1-mediated repression of LBD1 acting during LR emergence. M. truncatula HB1 regulates an adaptive developmental response to minimize the root surface exposed to adverse environmental stresses.
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