ISHS Acta Horticulturae 338: VI International Workshop on Fireblight
INTERACTIONS OF ERWINIA AMYLOVORA WITH AUXINS, AUXIN DERIVATIVES AND CHLOROGENIC ACID IN VITRO |
| Author: | A. Zaccheo |
| Abstract:
Indole-3-acetic acid (IAA) at 10-4 M was inhibitory on Erwinia amylovora (Burrill, Wilson et al.) in vitro. Ehmann reactions suggested that a pathogenic strain might remove IAA from the medium while two nonpathogenic strains did not. Chlorogenic acid addition to the growing cultures caused the appearance of two TLC spots where IAA was present at the time of inoculation; one spot was fluorescent under UV light and the other was Ehmann positive. A model based on proton NMR spectral analysis suggests that these compounds should be more thoroughly investigated in vivo for a possible plant cell damaging pathway. | |
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