부산대학교 도서관

X.¥le//afastidio.a is a plant pathogenic bacterium that has been introduced in the European Union (EU), causing significant yield losses in economically important Mediterranean crops. Almond leaf scoreh (ALS) is currently one the most relevant diseases observed in Spain, and no cure has been found be effective for this disease. In previous reports, the peptide BP 178 has shown stroiig bactericidal activity in vitro against X./ds#dio.a and to other plant pathogens. and to trigger defense responses in tomato plants. In the present work. BP 178 was applied by endothei·apy to almond plants of cultivar Avijor using preventive and curative strategies. The capacity of BP 1 78 to reduce population levels of X fil. Widiosa and to decrease disease symptoms and persistence over time were demonsu-ated under greenhouse conditions. most effective treatment consisted of a combination of preventive and curative applications. and the peptide was detected in the stem up to 60 days posttreatment. Priming plants with BP 178 induced defense responses mainly through the salicylic acid pathway, but also overexpressed some genes of the jasmonic acid and ethylene pathways. It is concluded that the bifunctional peptide is a promising candidate to be further developed to manage ALS caused by X. fastidiosa. [ABSTRACT FROM AUTHOR]