Journal
POSTHARVEST BIOLOGY AND TECHNOLOGY
Volume 127, Issue -, Pages 68-75Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.postharvbio.2017.01.006
Keywords
Penicillium expansum; Malus sieversii; Apple germplasm; UHPLC-HRMSn
Categories
Funding
- Agricultural Research Service of the U.S. Department of Agriculture
- Office of Dietary Supplements at the National Institutes of Health [Y01 OD001298-01]
- USDA-ARS Project Plan [808022000-009-00D]
Ask authors/readers for more resources
Several wild apple accessions (Malus sieversii) from Kazakhstan and two (Malus x soulardii, Malus sylvestris) from other parts of the world are highly resistant to blue mold decay caused by Penicillium expansum. Previous studies on the wound responses of these apples to infection by this fungus suggest multiple mechanisms of resistance including innate immunity. In this study, the phenolic composition of extracts from mature wild apples resistant (GMAL 4317. f, PI 589391, and PI 369855) and susceptible (GMAL 3623.i) to blue mold, as well as the susceptible cultivar 'Golden Delicious' (Malus x domestica) were investigated using ultra-high-performance liquid chromatography coupled to diode array detection and high resolution multiple stage mass spectrometry (UHPLC/DAD/HRMS). The metabolomic and quantitative results of this study support the hypothesis of the possible relationship between the phenolic content of wild apples and their resistance to P. expansum. Apple accessions resistant to P. expansum had higher concentrations of procyanidins, dihydrochalocone, flavonols, and hydroxycinnamic acids. Findings from this study may lead to development of the physiological markers of resistance that could be used by breeders in evaluating crosses for resistance to blue mold and may be helpful to further define apple defense mechanism(s) against P. expansum. Published by Elsevier B.V.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available