Antimicrobial Activities of Plant Extracts against Solanum tuberosum L. Phytopathogens

Author:

Steglińska AleksandraORCID,Bekhter Anastasiia,Wawrzyniak PawełORCID,Kunicka-Styczyńska AlinaORCID,Jastrząbek Konrad,Fidler Michał,Śmigielski Krzysztof,Gutarowska BeataORCID

Abstract

The purpose of the study was to select an environmentally friendly plant biopesticide to protect seed potatoes against phytopathogens. The scope included the evaluation of the antimicrobial activities of 22 plant water extracts, 22 water-glycol extracts, and 3 subcritical carbon dioxide extracts using the agar diffusion method against 10 potato phytopathogens. For the most effective extracts, minimal inhibitory concentration (MIC), chemical composition analysis by gas chromatography–mass spectrometry and in situ assays on seed potatoes were performed. Garlic water extract was finally selected as the most effective in phytopathogen growth inhibition, both in vitro and in situ, with MIC values ranging between 6.3–25 mg/mL. 5-Hydroxymethylfurfural was determined to be the main component of this extract (33.24%). Garlic water extract was proposed as a potential biopesticide against potato phytopathogens.

Funder

Agency for Restructuring and Modernization of Agriculture, Poland

Publisher

MDPI AG

Subject

Chemistry (miscellaneous),Analytical Chemistry,Organic Chemistry,Physical and Theoretical Chemistry,Molecular Medicine,Drug Discovery,Pharmaceutical Science

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