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Titolo:
LIGHT-INDUCED INCREASE IN THE CONTENTS OF FERULIC AND DIFERULIC ACIDSIN CELL-WALLS OF AVENA COLEOPTILES - ITS RELATIONSHIP TO GROWTH-INHIBITION BY LIGHT
Autore:
MIYAMOTO K; UEDA J; TAKEDA S; IDA K; HOSON T; MASUDA Y; KAMISAKA S;
Indirizzi:
OSAKA CITY UNIV,FAC SCI,DEPT BIOL,SUMIYOSHI KU OSAKA 558 JAPAN OSAKA CITY UNIV,FAC SCI,DEPT BIOL,SUMIYOSHI KU OSAKA 558 JAPAN UNIV OSAKA PREFECTURE,COLL INTEGRATED ARTS & SCI SAKAI OSAKA 593 JAPAN OSAKA WOMENS UNIV,DEPT NAT SCI SAKAI OSAKA 591 JAPAN TEZUKAYAMA GAKUIN COLL,FOOD SCI LAB GAKUENMINAMI NARA 631 JAPAN
Titolo Testata:
Physiologia Plantarum
fascicolo: 2, volume: 92, anno: 1994,
pagine: 350 - 355
SICI:
0031-9317(1994)92:2<350:LIITCO>2.0.ZU;2-R
Fonte:
ISI
Lingua:
ENG
Soggetto:
MECHANICAL-PROPERTIES; CARBOHYDRATE ESTERS; STRESS-RELAXATION; AUXIN; ELONGATION; COMPONENTS; EXTENSIBILITY; ANTIBODIES; SEGMENTS; BLUE;
Keywords:
AVENA SATIVA; CELL WALL; CELL WALL EXTENSIBILITY; COLEOPTILE; DIFERULIC ACID; FERULIC ACID; GROWTH INHIBITION; LIGHT; OAT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
33
Recensione:
Indirizzi per estratti:
Citazione:
K. Miyamoto et al., "LIGHT-INDUCED INCREASE IN THE CONTENTS OF FERULIC AND DIFERULIC ACIDSIN CELL-WALLS OF AVENA COLEOPTILES - ITS RELATIONSHIP TO GROWTH-INHIBITION BY LIGHT", Physiologia Plantarum, 92(2), 1994, pp. 350-355

Abstract

White fluorescent light (5 W m(-2)) inhibited Avena coleoptile growth. Light caused an increase in minimum stress relaxation time and a decrease in extensibility (strain/load) of coleoptile cell walls. Light increased the contents of ferulic acid (FA) and diferulic acid (DFA) ester-linked to the hemicellulose I in cell walls. These changes in the phenolic contents correlated with those of the mechanical properties of cell walls, suggesting that light stimulates the formation of DFA inhemicellulose I, making cell walls rigid, and thus results in growth inhibition. The ratio of DFA to FA was almost constant in the dark, but decreased in light, although it was almost constant in Oryza coleoptiles either in the dark or in light (Tan et al. 1992). From this fact,it is speculated that in the light condition, the formation of DFA incell walls is limited in the step of the peroxidase catalyzed coupling reaction to produce DFA, while in the dark it is limited in the stepof the feruloylation of hemicellulose I.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 20:10:26