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2001 (1)
1Author    Yuki Ogura, Atsushi Ishihara, Hajime IwamuraRequires cookie*
 Title    Induction of Hydroxycinnamic Acid Amides and Tryptophan by Jasmonic Acid, Abscisic Acid and Osmotic Stress in Barley Leaves  
 Abstract    The effects of jasmonic acid (JA) and abscisic aid (ABA) on secondary metabolism in barley (Hordeum vulgare L.) were investigated. Treatment with JA at 100 |j,m for 48 h induced accumulation of four compounds in barley primary leaves. The accumulation of these com­ pounds was also observed after treatm ent with ABA at 100 ^m. The induced compounds were identified as p-coumaroylputrescine, p-coumaroylagmatine, p-coumaroyl-3-hydroxyagmatine and tryptophan by spectroscopic methods. The profiles of compounds induced by application of JA and ABA were different. JA exhibited stronger inducing activity for hydroxycinnamic acid amides than ABA, while ABA was more active in tryptophan accumulation. The major hydroxycinnamic acid amides in JA-and A BA-treated leaves were p-coumaroylagmatine and p-coumaroyl-3-hydroxyagmatine, respectively. These differences suggested that JA and ABA act in distinct modes. The induction of these compounds was also observed in leaf segments treated with 1 m sorbitol and glucose. These findings suggested that JA and ABA are involved in accumulation of hydroxycinnamic acid amides and tryptophan in response to osmotic stress in barley. 
  Reference    Z. Naturforsch. 56c, 193—202 (2001); received O ctober 19/December 11 2000 
  Published    2001 
  Keywords    Jasmonic Acid, Abscisic Acid, Hydroxycinnamic Acid Amide 
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 TEI-XML for    default:Reihe_C/56/ZNC-2001-56c-0193.pdf 
 Identifier    ZNC-2001-56c-0193 
 Volume    56