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作 者 ：贺晓蔚;陈克成;肖翊华

期 刊 ：武汉植物学研究 1993年 11卷 2期 页码：125-129

关键词：水稻；红光；远红光；生长素；赤霉素；过氧化氢酶；过氧化物酶；

Keywords:Rice, Red light, Far-red light, IAA, GA3, Catalase, Peroxidase,

摘 要 ：红光(R)和远红光(Fr)都抑制水稻胚芽的生长,但对胚芽鞘来说,红光抑制其生长,远红光表现出部分逆转效应。一定浓度单一生长素(IAA)促进水稻胚芽鞘的生长,而赤霉素(GA₃)与生长素作用相反。对于水稻的过氧化氢酶(CAT)、过氧化物酶(POX),红光促进两种酶的活性,远红光则表现出逆转效应。单一10^-2ppmIAA、10^-2ppmGA₃都促进其活性。照光时,在10^-2ppm IAA存在的条件下,红光表现为促进,远红光则表现为抑制;但在10^-2ppm GA₃存在的条件下,红光反而对两种酶的活性有抑制作用,远红光则表现为促进作用。

Abstract:Both Red(R) and Far-red light(Fr) inhibit the growth of embryonic bud of rice As for embryonic bud sheath, R inhibits its growth, Fr shows partial reversible effect. The single IAA of certain concentration encourages the growth of sheath, but the effect of GA₃ is opposite to that of IAA. As far as CAT and POX of rice is concerned, R encourages their activity, however, Fr shows the effect of reversibility. Both the single 10^-2 ppm IAA and the single 10^-2 ppm GA₃ encourage the activity of CAT and POX. The result that plant hormone and light are given simultaneously is complex. In 10^-2 ppm IAA, R shows its encouragement, while Fr shows its inhibition; but in 10^-2 ppm GA₃, on the contrary, R inhibits their activity and Fr demonstrates its encouragement.

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