title: A systemic resistance inducing antiviral protein with N-glycosidase activity from Bougainvillea xbuttiana leaves.
abstract: An antiviral protein from Bougainvillea xbuttiana leaves induced systemic resistance in host plants N. glutinosa and Cyamopsis tetragonoloba against TMV and SRV, respectively which was reversed by actinomycin D, when applied immediately or shortly after antiviral protein treatment. When the inhibitor was applied to the host plant leaves post inoculation, it was effective if applied upto 4 h after virus infection. It also delayed the expression of symptoms in systemic hosts of TMV. The inhibitor showed characteristic N-glycosidase activity on 25S rRNA of tobacco ribosomes, suggesting that it could also be interfering with virus multiplication through ribosome-inactivation process.
authors.affiliation: Division of Biochemistry, Indian Agricultural Research Institute, New Delhi 110 012, India.
authors.forename: S
authors.initials: S
authors.lastname: Narwal
authors.forename: A
authors.initials: A
authors.lastname: Balasubrahmanyam
authors.forename: P
authors.initials: P
authors.lastname: Sadhna
authors.forename: H
authors.initials: H
authors.lastname: Kapoor
authors.forename: M L
authors.initials: ML
authors.lastname: Lodha
mesh_terms: D000998:Antiviral Agents / Q000494:pharmacology*; D006026:Glycoside Hydrolases / Q000378:metabolism*; D039281:Nyctaginaceae / Q000201:enzymology*; D018515:Plant Leaves / Q000201:enzymology*; D010940:Plant Proteins / Q000494:pharmacology*
chemical_list: D000998:Antiviral Agents; D010940:Plant Proteins; D006026:Glycoside Hydrolases