<strong>Biocontrol of Gray Mold Decay in Pear by Bacillus amyloliquefaciens Strain BA3 and its Effect on Postharvest Quality Parameters</strong>
Journal Title: Polish Journal of Microbiology - Year 2016, Vol 65, Issue 2
Abstract
The economic losses caused by postharvest fruits diseases have attracted global attention. Traditional chemical fungicide could not meet the need of humans. In recent years, microbial agent which has begun to take the place of chemical fungicide comes into people’s vision. The aim of this paper was to investigate the potential of [i]Bacillus amyloliquefaciens[/i] strain BA3 for its biocontrol capability on gray mold decay of pears and its effect on postharvest quality of pears. Compared with other treatments, the inhibition effect on gray mold of washed cell suspension of [i]B. amyloliquefaciens[/i] was the best. Consequently it was utilized in subsequent experiments. Spore germination and germ tube length of [i]Botrytis cinerea[/i] was 18.72% and 12.85 μm treated with BA3, while the control group was 62.88% and 30.44 μm. We confirmed that increase of the concentration of[i] B. amyloliquefaciens[/i], improved the efficacy of BA3 in controlling gray mold decay of pears. Colonization variation of BA3 in wounds of pears was recorded. To begin with, the populations of [i]B. amyloliquefaciens[/i] increased rapidly and remained stable. On the fourth day, there was a declining trend , after that the population increased to 4 × 10[sup]5[/sup] CFU/wound and remained stable. BA3 had no significant effect on mass loss, titratable acidity, firmness and total soluble solids of pears that were stored at 25°C for 7 days comparing with control group. However, the effect of [i]B. amyloliquefaciens[/i] on ascorbic acid was significantly higher than that of the control group. Our study indicates that [i]B. amyloliquefaciens[/i] has a potential as postharvest biocontrol agent on pears.
Authors and Affiliations
Hui Qu, LongYu Zhao, FengChun Zhao, YuFang Liu, ZhengYou Yang
Keywords
Related Articles
- EP ID EP81077
- DOI -
- Views 84
- Downloads 0
<strong>Serotype-Specific Pneumococcal Status prior to PCV 13 Administration in Children and Adolescents with Inflammatory Bowel Disease</strong>
The aim of this study was to evaluate the serotype-specific pneumococcal status of children and adolescents with inflammatory bowel disease (IBD) who were naïve to pneumococcal vaccination before administering the 13-val...
Inhibition of Multidrug-Resistant Gram-Positive and Gram-Negative Bacteria by a Photoactivated Porphyrin
The authors studied the in vitro antibacterial activity of the photo-activated porphyrin meso-tri(N-methyl-pyridyl), mono(N-tetradecyl-pyridyl)porphine (C14) against four multidrug-resistant bacteria: Staphylococcus aure...
Participation of TP53 and Bcl-2 proteins in gastric carcinomas associated with [i]Helicobacter pylori[/i] or Epstein-Barr virus (EBV)
In the presented studies p53 and bcl-2 proteins expression were evaluated in samples of gastric carcinomas in patients with [i]Helicobacter pylori[/i] or EBV or without [i]H. pylori[/i]/EBV infection. The studies w...
Enzymes Involved in Naproxen Degradation by Planococcus sp. S5
Naproxen is a one of the most popular non-steroidal anti-inflammatory drugs (NSAIDs) entering the environment as a result of high consumption. For this reason, there is an emerging need to recognize mechanisms of its deg...
Characterisation of Antimicrobial Properties of Extracts of Selected Medicinal Plants
The scope of the experiments included analysis of the antimicrobial activity of ethanolic, methanolic and aqueous extracts against bacterial and fungal cultures and determination of the minimum inhibitory concentration o...