Interaction entre différentes souches de Rhizobium lupini et les espèces ou cultivars de lupin (Lupinus albus, Lupinus luteus et Lupinus mutabilis)

Lagacherie, Bernard; Bours, Michèle; Giraud, Jean-Jacques; Sommer, Georges

doi:10.1051/agro:19830812

Cited by 4 publications

(1 citation statement)

References 2 publications

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“…Seeds were sterilized with calcium hypochlorite, germinated in Petri dishes and then transferred into Magenta pots. The Bradyrhizobium lupini MIAE428 strain (previously named LL13) 56 was used.…”

Section: Nodulation Assaysmentioning

confidence: 99%

Autoregulation of cluster root and nodule development by white lupin CCR1 receptor-like kinase

Marquès,

Divol,

Boultif

et al. 2024

Preprint

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Root development is controlled by local and systemic regulatory mechanisms that optimize mineral nutrient uptake and carbon allocation. The Autoregulation of Nodulation (AoN) pathway defines a negative regulation of nodule development in Legumes as a way to regulate the costly production of nitrogen-fixing organs. This pathway is defined as a response to symbiotic interaction and has been shown to also control root formation to some extent. However, it remains unclear if root and nodule development are under coordinated genetic regulation. Here, we identified mutants with altered root development in white lupin, constitutively producing specialized lateral roots called cluster roots. We showed that the CCR1 receptor-kinase negatively regulates cluster root and nodule development and targets common molecular modules such as NIN/LBD16-NFYA, defining a novel pathway that we named Autoregulation of Development (AoDev). AoDev defines a negative systemic pathway controlling several types of root organ development, independently of symbiotic partners and nutrient availability.

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Section: Nodulation Assaysmentioning

confidence: 99%