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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Lessonia nigrescens ： ウィキペディア英語版 Lessonia nigrescens ''Lessonia nigrescens'', the grey weed or giant grey weed, is a South American kelp species in the genus ''Lessonia''. There is at least two populations of the seaweed, marked by the difference in phenolic content. There is a subtidal population with higher phenol content and an intertidal population with a lighter phenol content. The difference in the phenolic content can be explained by the herbivory selection pressure due to the sea snail ''Tegula tridentata''.〔Micropopulation differentiation in phenol content and susceptibility to herbivory in the Chilean kelp Lessonia nigrescenss (Phaeophyta, Laminariales). Enrique A. Martínez, Hydrobiologia, July 1996, Volume 326-327, Issue 1, pages 205-211, 〕 UV treatment induces the production of phlorotannins that accumulate in physodes.〔Induction of Phlorotannins During UV Exposure Mitigates Inhibition of Photosynthesis and DNA Damage in the Kelp Lessonia nigrescens. Ivan Gómez and Pirjo Huovinen, Photochemistry and Photobiology, September/October 2010, Volume 86, Issue 5, pages 1056–1063, 〕 This weed contains the phytosterol saringosterol that shows an inhibitory effect on ''Mycobacterium tuberculosis'' growth.〔Inhibition of Mycobacterium tuberculosis growth by saringosterol from Lessonia nigrescens. Wächter Gerald A, Franzblau Scott G, Montenegro Gloria, Hoffmann Joseph J, Maiese William M and Timmermann Barbara N, Journal of natural products, 2001, volume 64, number 11, pages 1463-1464, 〕 == References == 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Lessonia nigrescens」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.