EVALUATION OF THE ANTAGONISTIC ACTIVITY OF VARIOUS COMBINATIONS OF LACTIC ACID BACTERIA STRAINS AGAINST THE CAUSATIVE AGENT OF BACTERIAL FIRE BLIGHT ERWINIA AMYLOVORA

2024

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DOI 10.53729/mv-as.2024.03.11
Data confidence 70 medium
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Abstract

The article presents the results of studying the antagonistic activity of various combinations of lactic acid bacteria strains against the causative agent of bacterial fire blight, Erwinia amylovora, cultivated on different nutrient media. It was found that lactobacillus strains exhibit varying degrees of inhibition. The zones of pathogen growth suppression ranged from 21.7±20.81 to 30.7±2.0 mm depending on the nutrient medium used for cultivation. It was shown that when the tested lactobacillus strains were applied individually and in various combinations, the suppression of pathogen growth remained almost at the same level. The maximum antagonistic activity of lactic acid bacteria was established against Erwinia amylovora strains grown on PGA nutrient medium. В статье представлены результаты изучения антагонистической активности различных комбинаций штаммов молочнокислых бактерий против возбудителя бактериального ожога Erwinia amylovora, выращенного на разных питательных средах.Установлено, что штаммы лактобацилл обладают различной степенью ингибирования. Зоны подавления роста патогена варьировали в пределах от 21,7±20,81 до 30,7±2,0 мм в зависимости от питательной среды его культивирования. Показано, что при применении испытуемых штаммов лактобактерий по отдельности и в различных комбинациях подавление роста патогена находится почти на одном уровне.Установлена максимальная антагонистическая активность молочнокислых бактерий в отношении штаммов Erwinia amylovora, выращенных на питательной среде КГА.