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Author

Christian Dubos

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3 papers indexed here

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Open access Sep 2026

HY5 orchestrates the transcriptional network controlling coumarin-mediated iron acquisition under elevated pH conditions

Iron (Fe) bioavailability is strongly limited in alkaline soils, where reduced Fe solubility severely restricts plant growth and productivity. To overcome this, Arabidopsis thaliana promotes Fe acquisition by secreting Fe-mobilizing coumarins, however, the transcriptional mechanisms coordinating this response is not cl...

Varsha Koolath, Muskan Kalra, Mei-Jie Li et al. · 0 citations
Open access Sep 2026

MYB28 and MYB29 transcription factors regulate iron homeostasis and iron-mobilizing coumarin biosynthesis in Arabidopsis thaliana

The results identify MYB28 as a key regulator linking specialized metabolism to Fe homeostasis through control of coumarin biosynthesis, thereby expanding the biological functions of MYB28 and MYB29 transcription factors.

A. Marín-Peña, Inmaculada Coleto, José Alberto Urbano-Gámez et al. · 0 citations
Open access Aug 2026

Coumarins link rhizobacteria perception in roots to systemic resistance in leaves

Coumarins are identified as key mediators linking rhizobacterial perception in roots to systemic immune signaling and resistance in leaves and metabolic reprogramming under Fe-sufficient conditions.

S. Hsu, Max J. J. Stassen, Kévin Robe et al. · 0 citations

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