|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|5769469||1628771||2018||6 صفحه PDF||سفارش دهید||دانلود کنید|
- Hot water (HW) treatment is a safe method to control fungal postharvest diseases.
- HW treatment reduced symptoms by B. cinerea, C. acutatum and N. vagabunda on apple.
- Protein extracts from HW treated fruits inhibited conidia germination of pathogens.
- Protein extracts from HW treated fruits reduced fungal pathogenesis enzyme activity.
Hot water treatment (HWT) has been demonstrated to be a safe and effective method to control postharvest diseases. In the present study, the effect of HWT (45Â Â°C for 10Â min) was investigated on the response of apple fruit against Botrytis cinerea, Colletotrichum acutatum and Neofabraea vagabunda infections. In vivo experiments were conducted with apples treated with HW and then inoculated with pathogen spore suspensions 0, 3, 6 and 24Â h after the treatment. In vitro experiments were carried out in order to investigate the HWT effect on the pathogenesis enzyme activities of the three pathogens. These assays were conducted with the crude protein extracts (CPEs) derived from the hot water treated apples. A significant reduction of rot incidence was observed in fruit inoculated at 6Â h (B. cinerea 22.7% and C. acutatum 11.0%) and 3Â h (N. vagabunda 68.8%) after HWT with respect to the controls (22.0, 18.5 and 19.67Â mm, respectively). CPEs extracted from hot water treated fruit inoculated at 6Â h and 3Â h showed the highest conidia germination inhibition (B. cinerea 85.6%; C. acutatum 52.7% and N. vagabunda 83.1%) with respect to the controls (74.0, 71.0 and 90.3% of conidia germination, respectively). A significant reduction of pathogenesis enzyme activities of the three pathogens was detected when pathogens were exposed to CPEs derived from hot water treated apples. The results showed that HWT can stimulate a defense response on apple against some postharvest pathogens.
Journal: Scientia Horticulturae - Volume 227, 3 January 2018, Pages 181-186