Further evidence of population shift in the gumming disease pathogen in Mauritius
| MSI99P0533 | |
| Ricaud, C. Sullivan, S. | |
| Further evidence of population shift in the gumming disease pathogen in Mauritius | |
| Periodical article | |
| 1974 | |
| Proc. int. Soc. Sug. Cane Technol. | |
| 15: 204-209 | |
| En | |
| En Es | |
| After an epidemic of gumming disease in Mauritius in 1964, due to the appearance of a new strain of the bacterium, several new varieties which had been tested and found resistant, were brought under cultivation to replace highly susceptible ones which had been earmarked for eradication. SOme of the former subsequently showed high susceptibility and this has been attributed to further changes in the bacterial population. Differences in pathogenicity between the old strain, present on noble canes, and the new strain, responsible for the epidemic, have been confirmed experimentally on three type varieties. Furthermore, a strain X variety interaction was found, indicating differences in virulence between the two strains and the existence of vertical resistance to the old strain in variety M 147/44. Such differences have not been found between isolates from varieties recently affected by the disease, including those obtained from infected M 147/44. The problem of population shift in the pathogen is discussed in terms of recent concepts and the implications in the variety selection programme are outlined. | |
| SUGARCANE GUMMOSIS XANTHOMONAS VASCULORUM EPIDEMIOLOGY DISEASES BACTERIAL DISEASES | |
| MAURITIUS | |
| Sugarcane: Diseases and disease management | |
| Bacterial diseases: Gumming | |
| 1992-03-01 | |
| En | |
| Mauritius Sugar Industry Research Institute | |
| LIB | |
| CAT | |
| PATH |