RNA Viroid formed by approximately 360 nucleotides cause the disease of tomato, locally known as “Planta Macho” (male plant) disease, occurs in the Mexican states of Morelos and Mexico. Symptoms resemble those induced in tomato by the potato spindle tuber viroid (PSTV), but are more severe. Infected plants are severely stunted and exhibit strong epinasty of leaves and leaflets. Infected plants produce more flowers and fruits than healthy plants, however the fruit remains small and has no commercial value.
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