Towards an integrated molecular understanding of plant hormones

[en] From seed dormancy to pathogen attacks and senescence, many events in a plant's life are critically controlled by low‐molecular‐weight signaling molecules, called plant hormones. These master regulators include abscisic acid, auxins, brassinosteroids, cytokinins, ethylene, gibberellins, jasmonates, salicylates, and strigolactones. Years of research have unveiled multiple aspects of their biosynthesis, transport, signaling, functions, and interactions. With this knowledge, complex molecular networks have been established and refined over time in an attempt to explain how plant hormones collectively mediate physiological processes, under a wide range of contexts and at various developmental stages. In this context, we aim to shed light on the global molecular framework of plant hormonal signaling. To do so, we first step back and offer a deconvolution of plant hormonal pathways, by addressing their biosynthesis, transport, and signaling. We then explore how hormonal pathways interfere with each other at a molecular level, mostly through transcriptional regulation and protein–protein interactions. We further discuss directions to fine‐tune our fundamental understanding of plant hormonal control, and finally, we highlight how this knowledge can be translated into applied prospects to tackle unprecedented agricultural challenges.

Disciplines :

Biochemistry, biophysics & molecular biology
Agriculture & agronomy

Author, co-author :

Vilain, Louise ; Université de Liège - ULiège > TERRA Research Centre > Chemistry for Sustainable Food and Environmental Systems (CSFES)

Fauconnier, Marie-Laure ^✱; Université de Liège - ULiège > Département GxABT > Chemistry for Sustainable Food and Environmental Systems (CSFES)

Genva, Manon ^✱; Université de Liège - ULiège > Département GxABT > Chemistry for Sustainable Food and Environmental Systems (CSFES)

^✱ These authors have contributed equally to this work.

Language :

English

Title :

Towards an integrated molecular understanding of plant hormones

Publication date :

09 April 2026

Journal title :

Journal of Integrative Plant Biology

ISSN :

1672-9072

eISSN :

1744-7909

Publisher :

Wiley

Peer reviewed :

Peer Reviewed verified by ORBi

Additional URL :

https://onlinelibrary.wiley.com/doi/pdf/10.1111/jipb.70238

Funders :

FRIA - Fonds pour la Formation à la Recherche dans l'Industrie et dans l'Agriculture
FU - Fondation Universitaire
F.R.S.-FNRS - Fonds de la Recherche Scientifique

Funding number :

AS-0660; 40028569

Available on ORBi :

since 10 April 2026

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