Dependence on Ethylene of the Induction of Phenylalanine Ammonia-Lyase Activity in Rice Leaf Infected with Blast Fungus(Pesticide Chemistry)

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概要

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• The application of ethephon (ETP), an ethylene generating chemical, to press-injured rice leaves induced PAL (EC 4.3.1.6) activity. This induction disappeared when the concentration was low. A Scatchard plot for ligand binding gave a linear relationship between the PAL reaction rate at the time for the maximum rate of induction (t_m) along the sigmoidal progress and the ratio of the PAL reaction rate versus ETP in a specific range of concentration. A similar application of glutamate (Glu) induced PAL activity, and the application of 1-aminocyclopropane-1-carboxylic acid (ACC) also induced PAL activity. The induction of rice leaf PAL with Glu was inhibited in the presence of tiron (TR), a superoxide scavenger, was weakly inhibited with aminooxyacetic acid (AOA), but was not inhibited with abscisic acid (ABA). The induction with ACC was also inhibited in the presence of TR, was weakly inhibited with AOA, and further was weakly inhibited with ABA. The inoculation of blast fungus conidia or application of fungal proteoglucomannnan (RIF) to press-injured rice leaves induced PAL activity. The induction proceeded along sigmoidal curve accompanying the disinct auto-inactivation phase. Each approximated t_m (midpoint of an individual sigmoidal curve) was determined; t_m = 5.3 hr with a compatible race, and t_m = 11.0 hr with RIF stimulation. The 3 inhibition profiles of TR, AOA and ABA upon rice leaf PAL induction either with inoculation or with stimulation were quite similar to the inhibition profiles upon PAL induction with Glu.

• 社団法人日本農芸化学会の論文
• 1988-04-23

著者

• Sekizawa Yasuharu

  Laboratory Of Applied Biochemistry Department Of Agricultural Chemistry Faculty Of Agriculture Tamag

• HAGA Minoru

  Laboratory of Applied Biochemistry, Department of Agricultural Chemistry, Faculty of Agriculture, Ta

• Sekizawa Yasuharu

  Department Of Agricultural Chemistry Faculty Of Agriculture Tamagawa University

• Matsumoto K

  Department Of Food Science And Technology Faculty Of Agriculture Kyushu University

• Haga Minoru

  Faculty Of Agriculture Tamagawa University

• Haga M

  Tamagawa Univ. Tokyo Jpn

• HARUYAMA Tetsuya

  Laboratory of Applied Biochemistry, Department of Agricultural Chemistry, Faculty of Agriculture, Ta

• KANO Hiromasa

  Laboratory of Applied Biochemistry, Department of Agricultural Chemistry, Faculty of Agriculture, Ta

• URUSHIZAKI Sueo

  Laboratory of Plant Growth Regulators, National Institute of Agrobiological Resources, The Ministry

• MATSUMOTO Kuniomi

  Laboratory of Agricultural and Industrial Chemicals, The Research Laboratories, Meiji Seika Kaisha L

• Kano H

  Laboratory Of Applied Biochemistry Department Of Agricultural Chemistry Faculty Of Agriculture Tamag

• Urushizaki Sueo

  Laboratory Of Plant Growth Regulators National Institute Of Agrobiological Resources The Ministry Of

• Haruyama Tetsuya

  Laboratory Of Applied Biochemistry Department Of Agricultural Chemistry Faculty Of Agriculture Tamag

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