Developing New Concepts in Phytoplasma Research: Where the Virological and Bacteriological Approaches Meet
The phytoplasmas in the present years are attracting more and more interest, and not only from plant pathologists, because of the intimate relationship that they establish with their plant hosts. A wide range of physiological disorders are associated with phytoplasma infections. Interestingly, some of these disorders could also be caused by viruses and the observation of the symptoms induced on plants has misled the identification of the aetiology of phytoplasma diseases for more than 50 years. There are also some characteristics of both phytoplasmas and viruses which have reinforced this error together with the progress of the understanding of their epidemiological traits.
Unable to display preview. Download preview PDF.
- 2.Firrao G., Gobbi E., Dazzan M. 2000. Differences in symptoms expression and pathogen concentration in various Arabidopsis thaliana ecotypes infected by the Italian Clover Phyllody phytoplasma. IOM Letters (in press).Google Scholar
- 3.Firrao, G., Smart, C., and Kirkpatrick, B.C. 1996. Physical map of the Western X-disease phytoplasma chromosome. Bacteriol. 178:3985–3988.Google Scholar
- 4.Palmano, S., and Firrao, G. 2000. Diversity of phytoplasmas isolated from insects, determined by a DNA heteroduplex mobility assay and a length polymorphism of the 16S-23S rDNA spacer region analysis. J. Appl. Microbiol, (in press).Google Scholar