1Department of Plant Pathology, S.V. Agricultural College, Acharya N.G. Ranga Agricultural University, Tirupati-517502, Andhra Pradesh, India
2Department of Plant Pathology, Agricultural College, Acharya N.G. Ranga Agricultural University, Mahanandi-518502, Andhra Pradesh, India
3Administrative Office, Acharya N.G Ranga Agricultural University, Lam, Guntur-522034, Andhra Pradesh, India
4Plant Pathology, Regional Agricultural Research Station, Acharya N.G. Ranga Agricultural University, Nandyal-518503, Andhra Pradesh, India
Phytoplasma-infected plants exhibit symptoms such as witches’ broom, phyllody, virescence, yellowing induced by the phytoplasma effector proteins. It has been revealed that phytoplasmas are capable of modulating biochemical responses of plants involved in defense mechanisms. Phenolic compounds, free amino acids in source leaves, protein contents, some secondary metabolites, and polyamines were found to increase, while chlorophyll content and photosynthetic activity and the diversity of chemical compounds were reduced as a consequence of phytoplasma infection. This review focuses on the phyllody disease pathosystem.
Phyllody, Secondary metabolites, Disease, Plants
