The plant RWP-RK transcription factors: key regulators of nitrogen responses and of gametophyte development - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Experimental Botany Année : 2014

The plant RWP-RK transcription factors: key regulators of nitrogen responses and of gametophyte development

Thomas Girin
François Roudier
Christian Meyer

Résumé

The plant specific RWP-RK family of transcription factors, initially identified in legumes and Chlamydomonas, are found in all vascular plants, green algae, and slime molds. These proteins possess a characteristic RWP-RK motif, which mediates DNA binding. Based on phylogenetic and domain analyses, we classified the RWP-RK proteins of six different species in two subfamilies: the NIN-like proteins (NLPs), which carry an additional PB1 domain at their C-terminus, and the RWP-RK domain proteins (RKDs), which are divided into three subgroups. Although, the functional analysis of this family is still in its infancy, several RWP-RK proteins have a key role in regulating responses to nitrogen availability. The nodulation-specific NIN proteins are involved in nodule organogenesis and rhizobial infection under nitrogen starvation conditions. Arabidopsis NLP7 in particular is a major player in the primary nitrate response. Several RKDs act as transcription factors involved in egg cell specification and differentiation or gametogenesis in algae, the latter modulated by nitrogen availability. Further studies are required to extend the general picture of the functional role of these exciting transcription factors.

Domaines

Botanique

Dates et versions

hal-01204150 , version 1 (23-09-2015)

Identifiants

Citer

Camille Chardin, Thomas Girin, François Roudier, Christian Meyer, Annemarie Krapp. The plant RWP-RK transcription factors: key regulators of nitrogen responses and of gametophyte development. Journal of Experimental Botany, 2014, 65 (19), pp.5577-5587. ⟨10.1093/jxb/eru261⟩. ⟨hal-01204150⟩
162 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Mastodon Facebook X LinkedIn More