Loading...
Isolation of rhizobium meliloti nod gene inducers from alfalfa rhizosphere soil.
Leon-Barrios, Milagros Dakora, Felix D. Josoeph, Cecillia M. Phillips, Donald A.
Leon-Barrios, Milagros
Dakora, Felix D.
Josoeph, Cecillia M.
Phillips, Donald A.
Citations
Altmetric:
Abstract
Methanolic extracts of alfalfa rhizosphere soil induce more nod gene transcription in Rhizobium meliloti than extracts of nonrhizosphere soil. Six peaks of nod-inducing activity were separated by high-performance liquid chromatography from rhizosphere soil extract, and one compound was identified by 'H nuclear magnetic resonance, mass spectrometry, and UV-visible spectra as a formononetin-7-O-glycoside that activates both NodDl and NodD2 proteins. The unanticipated presence of a glycoside in rhizosphere soil suggests either that large amounts of the glycoside were exuded by roots or that some glycosides are unexpectedly stable in soil.
Description
Date
1992-11-24
Journal Title
Journal ISSN
Volume Title
Publisher
American Society for Microbiology
Collections
Files
Loading...
Dakora 66.pdf
Adobe PDF, 717.9 KB
Research Projects
Organizational Units
Journal Issue
Keywords
Alfalfa rhizosphere, Rhizobium meliloti, NodDl and NodD2 proteins
Citation
License
Attribution-NonCommercial-ShareAlike 4.0 International