Biochemical alterations in lettuce (Lactuca sativa L.) infected with ‘Candidatus Phytoplasma asteris’ related strain (16SrI-B subgroup)

Phytoplasma infections are able to limit the lettuce growth around world. The alterations of biochemical contents in host physiology following phytoplasma infection remain be elucidated. In this study, changes total protein and chlorophyll content, proline, malondialdehyde (MDA) accumulation, peroxidase (POD) catalase (CAT) enzyme levels were investigated leaves plant after Candidatus asteris infection. Symptoms observed plants infected with yellowing, little leaf, stunting, a general decline. agent detected all by PCR-RFLP studies. Total phytoplasma-infected lower than those healthy control. Proline, MDA POX CAT activities increased as compared results show that can modify lettuce. conclusion, study indicated previously identified Ca. P. was still pathogen no its DNA sequence it reduce quality parameters possess potential danger growing areas.