W. Kohlen

Brassinosteroid and gibberellin signaling are required for Tomato internode elongation in response to low red: far-red light

This study shows GA and BR are necessary for tomato stem elongation under low R:FR light, with IAA enhancing GA's effect.

Nodule organogenesis in Medicago truncatula requires local stage-specific auxin biosynthesis and transport

This study shows that auxin biosynthesis and transport genes are dynamically expressed during nodule formation in Medicago truncatula, creating auxin gradients essential for nodule development.

CYP79B2 and CYP79B3 contribute to root branching through production of the auxin precursor indole-3-acetonitrile

This study shows that CYP79B2 and CYP79B3 regulate lateral root density under salt stress by producing the auxin precursor indole-3-acetonitrile (IAN).

Comparative Phylogenomics and Phylotranscriptomics Provide Insights into the Genetic Complexity of Nitrogen Fixing Root Nodule Symbiosis

The paper uses phylogenomic and phylotranscriptomic analyses to study the evolution of nitrogen-fixing root nodule symbiosis across the Nitrogen-Fixing Nodulation Clade, finding no convergence at the amino acid level and highlighting the role of NIN as a master regulator.

Cytokinin synthesis and export from symbiotic root nodules coordinates shoot growth with nitrogen fixation

This study identifies LjPup1 as a cytokinin exporter in root nodules that coordinates shoot growth with nitrogen fixation by exporting active cytokinins.

Selective degradation of ARF monomers controls auxin response in Marchantia

This study quantitatively maps the auxin signaling pathway in Marchantia by analyzing NAP protein dynamics and identifies ARF degradation as a regulatory mechanism for auxin response.

Long-lasting impact of chito-oligosaccharide application on strigolactone biosynthesis and fungal accommodation promotes arbuscular mycorrhiza in Medicago truncatula

This study shows that long-term chito-oligosaccharide treatment affects strigolactone biosynthesis and fungal accommodation in Medicago truncatula, promoting arbuscular mycorrhiza development.

Local light signalling at the leaf tip drives remote differential petiole growth through auxin-gibberellin dynamics

The paper shows that light signals at the leaf tip drive differential petiole growth through auxin and gibberellin dynamics, enabling upward leaf movement.

Medicago SPX1 and SPX3 regulate phosphate homeostasis, mycorrhizal colonization and arbuscule degradation

This study identifies SPX1 and SPX3 as regulators of phosphate homeostasis, mycorrhizal colonization, and arbuscule degradation in Medicago truncatula.

Nitrate inhibits nodule organogenesis through inhibition of cytokinin biosynthesis in Lotus japonicus

The paper shows nitrate inhibits cytokinin biosynthesis in Lotus japonicus, suppressing nodule organogenesis and symbiotic nitrogen fixation.

Nitrate inhibition of nodule formation in Medicago truncatula is mediated by ACC SYNTHASE 10

This study shows nitrate inhibits nodule formation in Medicago truncatula by reducing ACC SYNTHASE 10 expression, linking ethylene biosynthesis to nitrate's regulatory effect on nodulation.