Format

Send to

Choose Destination
Plant J. 1993 Oct;4(4):727-33.

Lipo-oligosaccharides of Rhizobium induce infection-related early nodulin gene expression in pea root hairs.

Author information

1
Department of Molecular Biology, Agricultural University, Wageningen, The Netherlands.

Abstract

This paper shows that lipo-oligosaccharides (Nod factors) synthesized by Rhizobium bacteria elicit the induction of infection-related early nodulin genes (PsENOD5 and PsENOD12) in pea root hairs. R. leguminosarum bv. viciae secretes a mixture of Nod factors containing a C18 fatty acid chain with 4 (C18:4) or 1 double bond (C18:1). Purified Nod factors harbouring either a C18:4 or a C18:1 acyl moiety induce the expression of the pea early nodulin genes, PsENOD5 and PsENOD12, but the kinetics of induction are different. The expression of both early nodulin genes is induced in a transient manner by the purified Nod factors while a mixture of the Nod factors extends the period during which these genes are expressed. In spite of the host-specific nature of the infection process, heterologous Nod factors of R. meliloti also induce the expression of PsENOD5 and PsENOD12 genes, though with a marked delay compared with the homologous compounds.

[Indexed for MEDLINE]
Free full text

Supplemental Content

Full text links

Icon for Wiley
Loading ...
Support Center