Journal
FOOD CONTROL
Volume 145, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodcont.2022.109402
Keywords
Peach; Soft rot disease; Rhizopus stolonifer; Biological control; Bacillus licheniformis HG03
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This study aimed to investigate the biocontrol ability of Bacillus licheniformis HG03 against Rhizopus stolonifer and explore its mechanism. The results showed that the treatment with HG03 improved the resistance of peaches to postharvest soft rot and enhanced their antioxidant activity, thus prolonging the storage time of peaches.
This study aimed to investigate the biocontrol ability of Bacillus licheniformis HG03 against Rhizopus stolonifer causing agent of peach fruit rot and explore its mechanism. The biocontrol strain B. licheniformis HG03 was applied on inhibition of the pathogen Rhizopus stolonifer, which is expected to improve the preservation of peach fruit. The results revealed that the peach treated with B. licheniformis HG03 were significantly more resistant to postharvest soft rot when stored at 20 degrees C and high humidity. Comparison to the control, treatment with HG03 improved the activity of related enzymes and balanced the metabolism of reactive oxygen species. Such treat-ment reduced the accumulation of lipid peroxidation products and enhanced free radical scavenging ability of peaches. Furthermore, the transcriptome analysis revealed that the HG03 treatment activated MAPK signaling pathway, induced the expression of antioxidant activity-related genes and different WRKY transcription factors in plant pathogen interaction metabolic pathway. Hence, the results revealed that HG03 treatment is an effective biological control method to improve peach fruit disease resistance and prolong the storage time of peaches.
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