Biocontrol potential of two deep-sea microorganisms against gray blight disease of tea
نویسندگان
چکیده
Abstract Background Gray blight is among the most destructive diseases that affect tea plants worldwide. In this study, microorganisms from deep-sea sediment samples for those with antagonistic effects were screened against gray caused by Pestalotiopsis theae . Results Thirty-two and twenty-eight morphologically different bacteria fungi isolated, respectively. Isolates B5 A65 clearly inhibited pathogens in vitro prepared as wettable agent powders evaluation micro-plot field trials. Foliar application of 48-h culture (1 × 10 8 , 2 7 1 colony-forming units (CFU)/ml) significantly reduced incidence disease. Compared to untreated control, spraying disease 78.57%. Isolate was identified Bacillus subtilis morphological 16S rDNA sequence analyses. The foliar 7-day cultures CFU/ml) (10 75.46% Paecilomyces lilacinus internally transcribed spacer Conclusions These candidate microbial pesticides may inhibit wilt tea, replace chemical pesticides’ use without causing environmental pollution, promote development green agriculture.
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ژورنال
عنوان ژورنال: Egyptian Journal of Biological Pest Control
سال: 2023
ISSN: ['2536-9342', '1110-1768']
DOI: https://doi.org/10.1186/s41938-023-00701-3