ArticlePlant signaling & behavior2018
bHLH093/NFL and bHLH061 are required for apical meristem function in Arabidopsis thaliana.
Article in Plant signaling & behavior, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 18 citations in OpenAlex.
- QTL mapping of vernalization-insensitive and photoperiod-independent early flowering in yellow lupin (Frontiers in plant science · 2026Article
- Bioenergy sorghum nodal root bud development: morphometric, transcriptomic and gene regulatory network analysis.Frontiers in plant science · 2024Article
- Sugar accumulation enhancement in sorghum stem is associated with reduced reproductive sink strength and increased phloem unloading activity.Frontiers in plant science · 2023Article
- Profiling of the Candidate Interacting Proteins of SELF-PRUNING 6A (SP6A) inInternational journal of molecular sciences · 2022Article
- Transcription factor VvibHLH93 negatively regulates proanthocyanidin biosynthesis in grapevine.Frontiers in plant science · 2022Article
- Brassinosteroids regulate root meristem development by mediating BIN2-UPB1 module in Arabidopsis.PLoS genetics · 2020Article
- Article
- The transcription factor OsbHLH138 regulates thermosensitive genic male sterility in rice via activation of TMS5.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019Article
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Authors and funding
3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
The basic Helix-Loop-Helix (bHLH) transcription factors SCREAM/ICE1 and SCREAM2 have well-characterized roles in the terminal differentiation of stomatal guard cells in Arabidopsis thaliana. Here we report on the characterization of the functional roles of the remaining members of sub-group IIIB, bHLH093 and bHLH061. The bhlh093/bhlh061 double mutant failed to produce a primary inflorescence shoot and displayed greater phenotypic severity than bhlh093 and bhlh061 single mutants. An ultrastructural investigation revealed structural defects that develop in tissues surrounding the meristem prior to inflorescence emergence. The transition to flowering was restored in bhlh093/bhlh061 with the application of gibberellin to the apex. We also demonstrate that gibberellin application alleviates structural defects that develop in tissues surrounding the meristem and restore meristem activity. Furthermore, the bhlh093/bhlh061 double mutant was affected by delayed flowering, and the severity of the phenotype correlated with photoperiod and light intensity. Our results indicate that bHLH093 and bHLH061 function in the gibberellin-mediated establishment of functional apical meristems during the transition from vegetative to reproductive growth.
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