z-logo
open-access-imgOpen Access
Human influenza virus NS1 protein enhances viral pathogenicity and acts as an RNA silencing suppressor in plants
Author(s) -
María Otilia Delgadillo,
Pilar Sáenz,
Beatriz Salvador,
Juan Antonio Garcı́a,
Carmen SimónMateo
Publication year - 2004
Publication title -
journal of general virology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.55
H-Index - 167
eISSN - 1465-2099
pISSN - 0022-1317
DOI - 10.1099/vir.0.19735-0
Subject(s) - biology , gene silencing , rna silencing , virology , rna interference , virus , rna induced silencing complex , tobacco etch virus , trans acting sirna , small interfering rna , rna , influenza a virus , plant virus , suppressor , nicotiana benthamiana , potyvirus , gene , genetics
RNA silencing has a well-established function as an antiviral defence mechanism in plants and insects. Using an Agrobacterium-mediated transient assay, we report here that NS1 protein from human influenza A virus suppresses RNA silencing in plants in a manner similar to P1/HC-Pro protein of Tobacco etch potyvirus, a well-characterized plant virus silencing suppressor. Moreover, we have shown that NS1 protein expression strongly enhances the symptoms of Potato virus X in three different plant hosts, suggesting that NS1 protein could be inhibiting defence mechanisms activated in the plant on infection. These data provide further evidence that an RNA silencing pathway could also be activated as a defence response in mammals.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here
Accelerating Research

Address

John Eccles House
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom