The molecular network governing nodule organogenesis and infection in the model legume Lotus japonicus

Lene H. Madsen, Leïla Tirichine, Anna Jurkiewicz, John T. Sullivan, Anne B. Heckmann, Anita S. Bek, Clive W. Ronson, Euan K. James and Jens Stougaard ()
Additional contact information
Lene H. Madsen: Centre for Carbohydrate Recognition and Signalling, Aarhus University
Leïla Tirichine: Centre for Carbohydrate Recognition and Signalling, Aarhus University
Anna Jurkiewicz: Centre for Carbohydrate Recognition and Signalling, Aarhus University
John T. Sullivan: University of Otago, PO Box 56
Anne B. Heckmann: Centre for Carbohydrate Recognition and Signalling, Aarhus University
Anita S. Bek: Centre for Carbohydrate Recognition and Signalling, Aarhus University
Clive W. Ronson: University of Otago, PO Box 56
Euan K. James: Scottish Crop Research Institute, Invergowrie
Jens Stougaard: Centre for Carbohydrate Recognition and Signalling, Aarhus University

Nature Communications, 2010, vol. 1, issue 1, 1-12

Abstract: Abstract Bacterial infection of interior tissues of legume root nodules is controlled at the epidermal cell layer and is closely coordinated with progressing organ development. Using spontaneous nodulating Lotus japonicus plant mutants to uncouple nodule organogenesis from infection, we have determined the role of 16 genes in these two developmental processes. We show that host-encoded mechanisms control three alternative entry processes operating in the epidermis, the root cortex and at the single cell level. Single cell infection did not involve the formation of trans-cellular infection threads and was independent of host Nod-factor receptors and bacterial Nod-factor signals. In contrast, Nod-factor perception was required for epidermal root hair infection threads, whereas primary signal transduction genes preceding the secondary Ca2+ oscillations have an indirect role. We provide support for the origin of rhizobial infection through direct intercellular epidermal invasion and subsequent evolution of crack entry and root hair invasions observed in most extant legumes.

Date: 2010
References: Add references at CitEc
Citations: View citations in EconPapers (5)

Downloads: (external link)
https://www.nature.com/articles/ncomms1009 Abstract (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:1:y:2010:i:1:d:10.1038_ncomms1009

Ordering information: This journal article can be ordered from
https://www.nature.com/ncomms/

DOI: 10.1038/ncomms1009

Access Statistics for this article

Nature Communications is currently edited by Nathalie Le Bot, Enda Bergin and Fiona Gillespie

More articles in Nature Communications from Nature
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().