Three Novel Bacteriophages for the Biocontrol of <i>Pseudomonas syringae</i> pv. <i>actinidiae</i> on Artificially Contaminated Kiwifruit Leaves.

ABSTRACT: This study compared the efficacy of three individual lytic phages, PSA_LMAPSA-2T (PSA-2T), PSA_LMAPSA-6F (PSA-6F) and PSA_LMAPSA-7F (PSA-7F) and four phage cocktails (dual and triple combinations) in inactivating Pseudomonas syringae pv. actinidiae. Phages were isolated from kiwifruit leaves and soil samples contaminated with P. syringae pv. actinidiae and characterized by host spectrum, growth parameters, adsorption rate, genomic analysis, inactivation efficiency and viability under variable environmental conditions in orchard environments (temperature, pH and solar radiation). Phage PSA-2T showed the highest in vitro efficacy, achieving a 3.2 log CFU/mL maximum reduction after 18 h, outperforming PSA-6F and PSA-7F (0.6 and 1.5 log reductions, respectively). Ph

SUBMITTER: Pereira C 

PROVIDER: S-EPMC12736001 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature