Differences in the efficacy of carboxylic acid amide fungicides against less sensitive strains of Plasmopara viticola

作者：Nanni Irene Maja; Pirondi Alessandro; Mancini Daniela; Stammler Gerd; Gold Randall; Ferri Ilaria; Brunelli Agostino; Collina Marina^*

来源：Pest Management Science, 2016, 72(8): 1537-1539.

DOI：10.1002/ps.4182

• oomycetes
• CesA3 gene
• cellulose biosynthesis
• resistance

BACKGROUNDPlasmopara viticola is controlled by fungicides with different modes of action, including carboxylic acid amides (CAAs). The aim of this study was to evaluate differences in the response of CAA-resistant P. viticola strains towards CAAs.
RESULTSThe G1105S mutation affects all four CAAs, but with different impacts. While this confirms that they have the same mode of action, it shows that differences between CAAs can occur.
CONCLUSIONFurther molecular modelling and docking studies are needed to gain a better understanding of the different behaviours reported here.

• 出版日期2016-8