Change of supercooling capability in solutions containing different kinds of ice nucleators by flavonol glycosides from deep supercooling xylem parenchyma cells in trees

Chikako Kuwabara, Jun Kasuga, Donghui Wang, Yukiharu Fukushi, Keita Arakawa, Toshie Koyama, Takaaki Inada, Seizo Fujikawa

Index: Cryobiology 63(3) , 157-63, (2011)

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Abstract

Highlights ► Low temperature adaptation of xylem parenchyma cells in trees by deep supercooling. ► Existence of supercooling-promoting four kinds of flavonol glycosides. ► Concentration-dependent both supercooling-promoting and ice nucleation-enhancing activities in quercetin 3-glucoside. ► Solution-dependent both supercooling and ice nucleation activities in flavonol glycosides. ► Presence of unknown ice nucleators in deep supercooling xylem parenchyma cells.