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Poster Presentations
Day 2, June 23（Mon.）
Room P (Maesato East, Foyer, Ocean Wing)
- 2P-PM-48
Localization of neutral sugar and lipid compounds in strawberry fruit organs during ripening
(1Kyoto Univ., 2Agilent)
oMisaki Ishibashi1, Kyoko Yasuda2, Takeshi Serino2, Akira Oikawa1
The cultivated strawberry (Fragaria × ananassa) is a Rosaceae fruit crop and is highly sought after for its sweetness. Sugars and lipids are not only sources of energy in living organisms. They are also important factors that contribute to the flavor of agricultural products. The strawberry is an accessory fruit consisting of achene (seed-like true fruit) and receptacle (pulp). The metabolic profiles of achenes and receptacles are different, however the physiological significance and the factors contributing to fruit quality are unknown. In this study, we used LC-MS to analyze neutral sugars and lipids in achenes and receptacles, respectively. A total of over 10 peaks for neutral sugars and over 600 peaks for lipids were detected in each organ at the green and red stages. The content of neutral sugars in the receptacle increased with ripening, however that in the achene was similar between the stages. Most of the lipids were detected at higher levels in the achene. Among them, glycerophospholipids decreased with ripening. Whereas acylglycerols increased with ripening. This suggests a functional differentiation of metabolism in each organ during the biosynthesis and transport of sugar and lipid compounds.