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Titolo:
Stress-induced factor involved in flower formation of Lemna is an alpha-ketol derivative of linolenic acid
Autore:
Yokoyama, M; Yamaguchi, S; Inomata, S; Komatsu, K; Yoshida, S; Iida, T; Yokokawa, Y; Yamaguchi, M; Kaihara, S; Takimoto, A;
Indirizzi:
Shiseido Co Ltd, Basic Res Ctr, Kohoku Ku, Yokohama, Kanagawa 2238553, Japan Shiseido Co Ltd Yokohama Kanagawa Japan 2238553 , Kanagawa 2238553, Japan Lab Expt Biol, Kita Ku, Kyoto 6038423, Japan Lab Expt Biol Kyoto Japan 6038423 pt Biol, Kita Ku, Kyoto 6038423, Japan
Titolo Testata:
PLANT AND CELL PHYSIOLOGY
fascicolo: 1, volume: 41, anno: 2000,
pagine: 110 - 113
SICI:
0032-0781(200001)41:1<110:SFIIFF>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
WATER EXTRACT; ENZYME;
Keywords:
flowering; Lemna; linolenic acid; octadecadienoic acid; oxilipin; stress;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Life Sciences
Citazioni:
9
Recensione:
Indirizzi per estratti:
Indirizzo: Yokoyama, M Shiseido Co Ltd, Basic Res Ctr, Kohoku Ku, Yokohama, Kanagawa 2238553, Japan Shiseido Co Ltd Yokohama Kanagawa Japan 2238553 238553, Japan
Citazione:
M. Yokoyama et al., "Stress-induced factor involved in flower formation of Lemna is an alpha-ketol derivative of linolenic acid", PLANT CEL P, 41(1), 2000, pp. 110-113

Abstract

A stress-induced substance(s) (factor C) incubated with norepinephrine (NE) has strong flower-inducing activity in Lemna paucicostata. We isolated anessential component (FIF) of factor C, and clarified its chemical structure as 9-hydroxy-10-oxo-12(Z),15(Z)-octadecadienoic acid, an alpha-ketol derivative of linolenic acid, which is formed via 9-hydroperoxy linolenic acid. Synthesized FIF showed flower-inducing activity after incubation with NE (factor C activity) equivalent to that formed in the stressed Lemna. Jasmonic acid and 13-hydroxy-12-oxo-9(Z),15(Z)-octadecadienoic acid (12,13-alpha-ketol linolenic acid), both of which are formed via 13-hydroperoxide of linolenic acid and all other derivatives of FIF synthesized by chemical and enzymatic processes failed to show the factor C activity. These results suggest that the molecular structure of FIF is very specific for the factor C activity.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 23/09/20 alle ore 13:14:45