Abstract
A chemoattractant of Ralstonia solanacearum isolated from the activated charcoal-adsorbed fraction of tomato root exudates was identified as ethyl β-d-glucopyranoside by instrumental analyses and comparison with synthetic preparations. Ethyl β-D-glucopyranoside showed unambiguous activity at above 1 µmol/disc. Its stereoisomers and D-glucose were inactive.
Keywords:
Ralstonia solanacearum; bacterial wilt; chemotaxis; root exudates; tomato.
MeSH terms
-
Biological Assay
-
Carbon-13 Magnetic Resonance Spectroscopy
-
Chemical Fractionation / methods*
-
Chemotactic Factors / chemistry
-
Chemotactic Factors / isolation & purification*
-
Chemotactic Factors / pharmacology*
-
Chromatography, High Pressure Liquid
-
Glucosides / chemistry
-
Glucosides / isolation & purification
-
Glucosides / pharmacology*
-
Plant Exudates / chemistry*
-
Plant Roots / chemistry*
-
Proton Magnetic Resonance Spectroscopy
-
Ralstonia solanacearum / drug effects*
-
Solanum lycopersicum / chemistry*
Substances
-
Chemotactic Factors
-
Glucosides
-
Plant Exudates