한국작물학회지 (KOREAN JOURNAL OF CROP SCIENCE)

  • 제46권1호
  • /
  • Pages.22-28
  • /
  • 2001
  • /
  • 0252-9777(pISSN)
  • /
  • 2287-8432(eISSN)
한국작물학회 (The Korean Society of Crop Science)
권호 표지

Enzyme Activities and Compounds Related to Self-Defense in UV-Challenged Leaves of Rice

  • Kim, Hak-Yoon (Department of Agronomy, Kyungpook National University) ;
  • Shin, Dong-Hyun (Department of Agronomy, Kyungpook National University) ;
  • Sohn, Dae-Seung (Department of Agronomy, Kyungpook National University) ;
  • Lee, In-Jung (Department of Agronomy, Kyungpook National University) ;
  • Kim, Kil-Ung (Department of Agronomy, Kyungpook National University) ;
  • Lee, Sang-Chul (Department of Agronomy, Kyungpook National University) ;
  • Jeong, Hyung-Jin (School of Bioresource Science, Andng National University) ;
  • Cho, Moon-Soo (Department of Horticulture, Taegu University)
  • 발행 : 2001.03.01
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초록

The induction of enzymes and the accumulation of their end products associated with self-defense mechanism in rice were investigated. When rice leaves were irradiated with UV light, activities of diterpene cyclase, phenylalanine ammonia-lyase (PAL), and cinnamic acid 4-hydroxylase (CA4H) were induced and rice phytoalexin, momilactone A was accumulated. The content of p-coumaric acid in rice leaves was closely correlated with self-defense or allelopathic potential against barnyardgrass. UV-challenged rice leaves gave rise to the inhibition of barnyardgrass growth.

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