间苯二酚、水杨酸对绿豆下胚轴不定根形成的作用

EFFECTS OF RESORCINOL AND SALICYLIC ACID ON THE FORMATION OF ADVENTITIOUS ROOTS IN HYPOCOTYL CUTTINGS OF VIGNA RADIATA

摘要:

２０—１００ｍｇＬ（－１）间苯二酚能明显地促进绿豆下胚轴不定根的形成，与２０ｍｇＬ（－１）ＩＢＡ混合处理具加成效应，其作用在于降低生根初期ＩＡＡ氧化酶和多酚氧化酶活性．１０—１００ｍｇＬ（－１）水杨酸抑制下胚轴不定根的形成，随处理浓度的加大，对生根数目、生根范围和根重的抑制作用增加．水杨酸处理后１－３ｄ，能提高ＩＡＡ氧化酶和多酚氧化酶的活性．

Abstract:

Twenty to 100mg L-1 resorcinol(Res)stimulated the formation of adventitious roots in hypocotyl cuttings of mung beau.Mixtures of the resorcinol with 20mg L-1IBA showed more effective than IBA or Res alone in promoting adventitious root formation.The essential role of Res in promoting adventitious rootS was in relation to the increasing activities of IAA oxidase and polyphenol oxidase in the early stages of root regeneration.ten to 100 mg L-1 salicylic acid(SA)inhibited adventitious root formation and decrea...