History
There are references to diseases now known to be caused by phytoplasmas as far back as 1603 for Mulberry dwarf disease in Japan. Such diseases were originally thought to be caused by viruses, which, like phytoplasmas, require insect vectors, cannot be cultured, and have some symptom similarity. In 1967 phytoplasmas were discovered in ultrathin sections of plant phloem tissue and named mycoplasma-like organisms (MLOs), because they physically resembled mycoplasmas The organisms were renamed phytoplasmas in 1994, at the 10th congress of the International Organization of Mycoplasmology.
Read more about this topic: Phytoplasma
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