Host recognition in the Rhizobium-soybean symbiosis

Polar binding of Rhizobium japonicum to roots and root hairs of Glycine soja (L.) Sieb. and Zucc. is specifically inhibited by D-galactose and N-acetyl-D-galactosamine, haptens of Glycine max seed lectin. A protein, immunologically cross-reactive with the G. max seed lectin, is present in G. soja se...

Full description

Saved in:
Bibliographic Details
Published in:Plant physiology (Bethesda) 1980-10, Vol.66 (4), p.609-614
Main Authors: Stacey, Gary, Paau, Alan S., Brill, Winston J.
Format: Article
Language:English
Subjects:
Bacteria
Epidermal cells
Haptens
Infections
Lectins
Plant roots
Plants
Rhizobium
Root hairs
Soybeans
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Polar binding of Rhizobium japonicum to roots and root hairs of Glycine soja (L.) Sieb. and Zucc. is specifically inhibited by D-galactose and N-acetyl-D-galactosamine, haptens of Glycine max seed lectin. A protein, immunologically cross-reactive with the G. max seed lectin, is present in G. soja seed extracts. Peptide mapping of the purified G. max and G. soja lectins indicates that the two are similar in structure. Soybean lectin can be localized on the surface of both G. max and G. soja roots by indirect immunolatex techniques. These observations indicate that the Rhizobium-binding lectin, previously isolated from seeds, also is present on the root surface--the site of the initial steps in the infection. This lectin is capable of binding Rhizobium japonicum to the root.
ISSN:0032-0889
1532-2548
DOI:10.1104/pp.66.4.609