作者
GA González-Aguilar, ME Tiznado-Hernandez, R Zavaleta-Gatica, MA Martınez-Téllez
发表日期
2004/1/16
期刊
Biochemical and biophysical research communications
卷号
313
期号
3
页码范围
694-701
出版商
Academic Press
简介
Tropical fruits cannot be stored at low temperatures due to the chilling injury phenomena. With the goal of reducing the chilling injury, we tested 10−4 and 10−5M of methyl jasmonate (MJ) treatment before the storage of red and white cultivars of guava fruits at 5°C for up to 15 days plus two days at 20°C. Every five days, we evaluated chilling injury index, ion leakage percentage, vitamin C, sugars, total phenols, and the activity of the enzymes lipoxygenase (LOX) and phenylalanine-ammonia lyase (PAL). We found that methyl jasmonate treatments reduce the chilling injury index and the ion leakage percentage. Furthermore, MJ did not affect vitamin C, chlorophyll, and total phenols. MJ increased sugar content, PAL, and LOX activities. We concluded that MJ reduces chilling injury and activates the fruit defense response as indicated by the behavior of total phenols and the increase in sugar content, PAL, and LOX …
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Methyl jasmonate treatments reduce chilling injury and activate the defense response of guava fruits
GA González-Aguilar, ME Tiznado-Hernandez… - Biochemical and biophysical research communications, 2004