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Planta Med 1993; 59(3): 253-255
DOI: 10.1055/s-2006-959662
Paper

© Georg Thieme Verlag Stuttgart · New York

Inhibition of Tyrosine Activity by Cultured Lichen Tissues and Bionts

Masako Higuchi1 , Yasutaka Miura1 , Jeanette Boohene1 , Yasuhiro Kinoshita1 , Yoshikazu Yamamoto1 , Isao Yoshimura2 , Yasuyuki Yamada3
  • 1Research Center, Nippon Paint Co., Ltd., Neyagawa, Osaka 572, Japan
  • 2Kochi Gakuen College, Kochi 780, Japan
  • 3Department of Agricultural Chemistry, Kyoto University, Kyoto 606, Japan
Further Information

Publication History

1992

1992

Publication Date:
04 January 2007 (online)

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Abstract

Axenic, cultured thallus tissues from forty-six species of lichens were evaluated for their inhibitory effect on tyrosinase activity. Methanol extracts of tissues of three lichens, i.e. Hypogymnia physodes, Letharia vulpina, and Cetraria juniperina strongly inhibited tyrosinase activity, but extracts from the corresponding natural thalli showed only weak inhibition. The mycobiont of Hypogymnia physodes showed a higher inhibitory action than its photobiont.

Key words

Lichen - cultured lichen tissues - tyrosinase inhibitor - hyperpigmentation.