The application discloses application of
glycoside compounds in prevention and treatment of
plant pathogenic viruses and belongs to the technical field of
pesticide antiviral agents.Taking a
tobacco mosaic virus coat protein as an example, small molecules including
sugar rings, such as Swertiamarin I (A0) and
ZINC85593196 (B0), are screened through
virtual screening,
molecular dynamics simulation,
molecular mechanics and MM / GBSA free energy calculation. Based on this, further optimization is carried out, and six compounds similar to the structure of A0, such as 4-
methylumbelliferone-beta-D-
xyloside (A1), gardenoside (A2), 4-
methylumbelliferone-beta-D-pyranoside (A3), 4-
methylumbelliferone-beta-D-pyranoglucoside (A4),
catalpol (A5) and esculin (
hemihydrate) (A6), are obtained, and in-vivo and in-vitro
biological activity evaluation is carried out. The active ingredients screened by the above method have good
inhibitory effect on
plant viruses.