Mycoplasmas

Mycoplasmas Common name Mycoplasmas Causal agent Mycoplasmas are gram-positive bacteria that affect various plant species. It causes several plant diseases, including corn stunt, periwinkle yellows, mottling, and dwarfing. They cannot survive outside the phloem cell wall. Scientific name Phytoplasmas Spiroplasmas Symptoms & Signs Depending on the plant species, there can be several symptoms. This includes chlorosis of the leaves, mottling, and dwarfism. Other growth disorders such as witches broom, and polyphyly are also common. Since the phloem is affected, various growth and variegation disorders can take place. Transmission It is transmitted to other healthy plants through sap-sucking insects such as leafhoppers. Mycoplasmas cannot be spread through seeds or physical contact. Time of concern Throughout the year Common hosts Corn Orange Mandarin