MISC

2006年3月

Induction of beta-glucosidase activity in maize coleoptiles by blue light illumination

JOURNAL OF PLANT PHYSIOLOGY
  • R Jabeen
  • ,
  • K Yamada
  • ,
  • H Shigemori
  • ,
  • T Hasegawa
  • ,
  • M Hara
  • ,
  • T Kuboi
  • ,
  • K Hasegawa

163
5
開始ページ
538
終了ページ
545
記述言語
英語
掲載種別
DOI
10.1016/j.jplph.2005.05.004
出版者・発行元
ELSEVIER GMBH, URBAN & FISCHER VERLAG

The role of beta-glucosidase during the phototropic response in maize (Zea mays) coleoptiles was investigated. Unilateral blue light illumination abruptly up-regulated the activity of beta-glucosidase in the illuminated halves, 10 min after the onset of illumination, peaking after 30 min and decreasing thereafter. The level of 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (DIMBOA), which is released from DIMBOA glucoside (DIMBOA-Glc) by beta-glucosidase, and its degradation compound 6-methoxybenzoxazotinone (MBOA) were elevated within 30 min in the illuminated halves as compare to the shaded halves, prior to the phototropic curvature. Furthermore, beta-glucosidase inhibitor treatment significantly decreased the phototropic curvature and decreased growth suppression in the illuminated sides. These results suggest that blue tight induces the activity of beta-glucosidase in the illuminated halves of coleoptiles causing an increase in DIMBOA biosynthesis and the growth inhibition that leads to a phototropic curvature. (C) 2005 Elsevier GmbH. All rights reserved.

Web of Science ® 被引用回数 : 9

リンク情報
DOI
https://doi.org/10.1016/j.jplph.2005.05.004
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000236112000007&DestApp=WOS_CPL
ID情報
  • DOI : 10.1016/j.jplph.2005.05.004
  • ISSN : 0176-1617
  • Web of Science ID : WOS:000236112000007

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