Visualization of Flavonol Distribution in the Abaxial Epidermis of Onion Scales via Detection of Its Autofluorescence in the Absence of Chemical Processes

Emi SUDO; Mika TERANISHI; Jun HIDEMA; Tetsuo TANIUCHI

doi:10.1271/bbb.90169

This article has now been updated. Please use the final version.

Visualization of Flavonol Distribution in the Abaxial Epidermis of Onion Scales via Detection of Its Autofluorescence in the Absence of Chemical Processes

Emi SUDO, Mika TERANISHI, Jun HIDEMA, Tetsuo TANIUCHI

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Keywords: onion (Allium cepa L.) scales, autofluorescence, flavonol distribution

JOURNAL FREE ACCESS Advance online publication

Article ID: 90169

DOI https://doi.org/10.1271/bbb.90169

The final version of this article is now available: Vol. 73 (2009) , No. 9 p.2107

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Abstract

We visualized flavonol distribution in the abaxial epidermis of onion scales without chemical processes via detection of blue-light-induced green autofluorescence. Our visualizing results indicated an unequal intercellular distribution of flavonols among epidermal cells causing a patch distribution in the epidermis, and indicated that flavonol accumulation in ultraviolet irradiated-onion scales was in uniformity with epidermal cells, probably to compensate for their stress-hypersensitiveness.

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