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园艺学报 ›› 2016, Vol. 43 ›› Issue (11): 2151-2060.doi: 10.16420/j.issn.0513-353x.2016-0407

• 蔬菜 • 上一篇    下一篇

外施GA、MeJA、IAA、SA 和KT 对番茄表皮毛发生的作用

刘金秋1,陈 凯1,张珍珠2,陈秀玲1,王傲雪1,3,*   

  1. 1 东北农业大学园艺学院,哈尔滨 150030;2 齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔 161006;3 东北
    农业大学生命科学学院,哈尔滨 150030
  • 出版日期:2016-11-25 发布日期:2016-11-25
  • 基金资助:

    黑龙江省杰出青年基金项目(JC2015004)

Effects of Exogenous GA,MeJA,IAA,SA and KT on Trichome Formation in Tomato

LIU Jin-qiu1,CHEN Kai1,ZHANG Zhen-zhu2,CHEN Xiu-ling1,and WANG Ao-xue1,3,*   

  1. 1College of Horticulture,Northeast Agricultural University,Harbin 150030,China; 2 College of Chemistry and Chemical
    Engineering,Qiqihar University,Qiqihar,Heilongjiang 161006,China;3College of Life Sciences,Northeast Agricultural
    University,Harbin 150030,China
  • Online:2016-11-25 Published:2016-11-25

摘要:

以番茄品种‘大量5 号’和多茸毛突变品系‘3-071’为试材,通过喷施外源GA、MeJA、
IAA、SA、KT 处理幼苗,每3 d 1 次,取样进行内源激素测定和体视显微镜观察,研究不同植物生长调
节剂及不同浓度对番茄表皮毛密度及类型的影响。结果表明,喷施各浓度梯度GA、MeJA 和IAA 均提高
了两种番茄内源GA、MeJA、IAA 含量,降低了SA、KT 含量,同时番茄表皮毛Ⅳ、Ⅵ型显著增加。其
中0.350 mg · L-1 GA、0.020 mg · L-1 MeJA 处理对Ⅳ型表皮毛促进效果最显著;35.000 mg · L-1 GA、0.200
mg · L-1 MeJA 处理对Ⅵ型表皮毛促进效果最显著。各浓度IAA 对两种番茄品种Ⅳ、Ⅵ型表皮毛发生均有
显著的促进作用。外源KT 促进内源SA、KT 合成,抑制GA、MeJA、IAA 的合成,对Ⅰ、Ⅳ型表皮毛
发生有极显著的促进作用,对Ⅵ型表皮毛的发生有抑制作用,其中21.300 mg · L-1 KT 对两种番茄对Ⅰ、
Ⅳ、Ⅵ型表皮毛作用效果最显著。外源SA 降低内源GA、MeJA、IAA 含量,提高内源SA、KT 含量。
喷施SA 对番茄Ⅰ、Ⅳ、Ⅵ型表皮毛发生有显著抑制作用,其中1.500 mg · L-1 SA 处理抑制作用最显著。
据此推测,外源植物生长调节剂通过影响各内源激素的含量,从而调控番茄表皮毛发生。

关键词: 番茄, 表皮毛, 激素

Abstract:

Tomato‘Daliang 5’and hairy mutant strain‘3-071’with high density of trichome were
used as experimental materials to investigate the relationship among exogenous GA,MeJA,IAA,SA and
KT and the levels of endogenous hormones as well as the density of different types of trichome.
Exogenous hormones were sprayed once 3 days. Leaves were sampled for measuring endogenous hormone
levels and observing characteristics of trichomes under microscopy. The results showed that exogenous
GA,MeJA and IAA in both varieties of tomato enhanced the levels of endogenous GA,MeJA and IAA,but reduced the levels of endogenous SA and KT in tomato. Exogenous GA,MeJA and IAA also increased
the number of trichomes types Ⅳ,Ⅵ trichomes. The densities of trichomes types Ⅳ has most
significant effect was presented for the 0.350 mg · L-1 GA,0.200 mg · L-1 MeJA treatment comparing with
the control. The densities of trichomes types Ⅵ has most significant effect was presented for the 35.000
mg · L-1 GA,0.200 mg · L-1 MeJA treatment comparing with the control. The densities of trichomes types
Ⅳ,Ⅵ in both varieties of tomato has significant effect in gradient of concentration IAA. In addition,
exogenous KT enhanced the levels of endogenous SA and KT,whereas reduced the levels of endogenous
GA,MeJA and IAA in tomato. Exogenous SA(0.015,0.150 and 1.500 mg · L-1)reduced the levels of
endogenous GA,MeJA and IAA,but enhanced the levels of endogenous SA and KT in tomato and reduced
the densities of trichomes types Ⅰ,Ⅳ,Ⅵ and 1.500 mg · L-1 SA had the most significant effect
comparing with control and the other treatments. In conclusion,exogenous hormones could affect the
concentration of endogenous hormones so as to regulate trichome formation in tomato.

Key words: tomato, trichome, hormone

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