ABSTRACT

Generally called as Mollicutes and are the smallest known free-living organisms. Prokaryotic, pleomorphic, resemble mycoplasma, wall less, self- replicating, pass through bacterial filters, sensitive to tetracyclines, transmission by leaf hoppers, found in sieve elements of plants. Production of virescent flowers (green flower parts). It changes the angle of growth of the branches. When a leafhopper inserts its piercing stylet into the vein of a plant infected with phytoplasmas and draws up the sap from the phloem, the phytoplasmas are transferred into the leafhopper’s body, where they multiply. Growth of auxiliary buds is stimulated and this is accompanied by the shortening of internodes of the branches. Drooping of premature nuts followed by blackening of inflorescence tip and all male flowers.