ArticleScientific reports2023
Cis-regulatory elements and transcription factors related to auxin signaling in the streptophyte algae Klebsormidium nitens.
Article in Scientific reports, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed, 8 citations in OpenAlex.
- Genome-wide identification and characterization of the RPA gene family in maize.BMC plant biology · 2026Article
- Algae.Scientific reports · 2025Article
- Origin and evolution of auxin-mediated acid growth.Proceedings of the National Academy of Sciences of the United States of America · 2024Article
- Biotic interactions, evolutionary forces and the pan-plant specialized metabolism.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2024Review
- Phylogeny and evolution of streptophyte algae.Annals of botany · 2024Review
- Review
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Authors and funding
5 authors at 1 institution in 1 country.
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Abstract
The phytohormone auxin affects numerous processes in land plants. The central auxin signaling machinery, called the nuclear auxin pathway, is mediated by its pivotal receptor named TRANSPORT INHIBITOR RESPONSE 1/AUXIN SIGNALING F-BOX (TIR1/AFB). The nuclear auxin pathway is widely conserved in land plants, but auxin also accumulates in various algae. Although auxin affects the growth of several algae, the components that mediate auxin signaling have not been identified. We previously reported that exogenous auxin suppresses cell proliferation in the Klebsormidium nitens that is a member of streptophyte algae, a paraphyletic group sharing the common ancestor with land plants. Although K. nitens lacks TIR1/AFB, auxin affects the expression of numerous genes. Thus, elucidation of the mechanism of auxin-inducible gene expression in K. nitens would provide important insights into the evolution of auxin signaling. Here, we show that some motifs are enriched in the promoter sequences of auxin-inducible genes in K. nitens. We also found that the transcription factor KnRAV activates several auxin-inducible genes and directly binds the promoter of KnLBD1, a representative auxin-inducible gene. We propose that KnRAV has the potential to regulate auxin-responsive gene expression in K. nitens.
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