• 제목/요약/키워드: Agronomy

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

  • Kim, Hak-Yoon;Shin, Dong-Hyun;Sohn, Dae-Seung;Lee, In-Jung;Kim, Kil-Ung;Lee, Sang-Chul;Jeong, Hyung-Jin;Cho, Moon-Soo
    • 한국작물학회지
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    • 제46권1호
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    • pp.22-28
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    • 2001
  • 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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