ISHS Acta Horticulturae 293: IX International Symposium on Apricot Culture
THE ROLE THE ICE-NUCLEATION ACTIVE BACTERIA IN THE DEVELOPMENT OF CANKER AND DIEBACK DISEASES OF APRICOTS |
| Authors: | Z. Klement, Zs.D. Rozsnyay, M. Hevesi |
| Abstract:
Pseudomonas syringae pv. syringae is one of the pathogenic agent which causes canker and dieback diseases of apricot trees only during winter. An important property of this bacterium is that it can catalyze ice-crystal formation in the supercool fluids. The role of this ice-nucleation activity of this bacterium is questionable. Our results show that the ice-nucleation activity of Pseudomonas syringae pv. syringae isolated from apricot and cherry orchards are not uniform. The strains isolated from apricot are more active in ice-nucleation than strains isolated from cherry. These results correlate with the general experience in Hungary that the canker and dieback diseases are serious in apricot orchards but occur only rarely in cherry trees. | |
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