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Plant Physiology - The Symbiosis-Related ERN Transcription Factors Act

Plant Physiology - The Symbiosis-Related ERN Transcription Factors Act in concert to Coordinate Rhizobial Host Root Infection

Legumes improve their mineral nutrition through nitrogen-fixing root nodule symbioses with soil rhizobia. Rhizobial infection of legumes is regulated by a number of transcription factors, including ERF Required for Nodulation1 (ERN1). Medicago truncatula plants defective in ERN1 are unable to nodulate, but still exhibit early symbiotic responses including rhizobial infection. ERN1 has a close homolog, ERN2, which shows partially overlapping expression patterns. Here we show that ern2 mutants exhibit a later nodulation phenotype than ern1, being able to form nodules but with signs of premature senescence.

Two papers revealing the key roles that ERN1/ERN2 play at the very earliest stages of root nodule development.

Read more on LabEx LULIP website >>>

See also

The Symbiosis-Related ERN Transcription Factors Act in Concert to Coordinate Rhizobial Host Root Infection

Marion R. Cerri, Lisa Frances, Audrey Kelner, Joëlle Fournier, Patrick H. Middleton, Marie-Christine Auriac, Kirankumar S. Mysore, Jiangqi Wen, Monique Erard, David G. Barker, Giles E. Oldroyd and Fernanda de Carvalho-Niebel

First Published on April 4, 2016, doi: 10.1104/pp.16.00230, Plant Physiology, June 2016 vol. 171 no. 2 1037-1054

http://www.plantphysiol.org/content/171/2/1037

Modification date : 06 June 2023 | Publication date : 06 July 2016 | Redactor : Guillaume Cassiède-Berjon