LIU Ting-xu,LUO Chuan,ZHAO Cai-ping,et al.Effect of ABA on Fruit Ripening and Ethylene Biosynthesis[J].Northern Horticulture,2012,36(20):134-137.
脱落酸对桃果实成熟软化和乙烯生物合成的影响
- Title:
- Effect of ABA on Fruit Ripening and Ethylene Biosynthesis
- 文章编号:
- 1001-0009(2012)20-0134-04
- Keywords:
- peach; ABA; ripening and softening; enzyme; ACC
- 分类号:
- S 662.109+.3
- 文献标志码:
- A
- 摘要:
- 以“白丽”桃为试材，分析了果实室温条件下贮藏过程中外源ABA（脱落酸）处理和NDGA（去甲二氢化愈创木酸，ABA生物合成抑制剂）处理后多聚半乳糖醛酸酶、果胶甲酯酶、ACC合成酶和ACC氧化酶含量的变化，探讨了在室温贮藏条件下ABA对果实成熟软化和乙烯生物合成的影响。结果表明：外源ABA处理可以提高多聚半乳糖醛酸酶和果胶甲酯酶的活性，加速果实硬度软化进程。外源ABA处理可以提高ACC合成酶和ACC氧化酶的活性，使果实乙烯释放量增加并且乙烯释放高峰提前出现。而NDGA处理则可以抑制多聚半乳糖醛酸酶的活性，果胶甲酯酶活性与清水相比虽然有降低，但抑制效果不显著。NDGA对果实硬度下降也有延缓作用。NDGA可以抑制ACC合成酶和ACC氧化酶的活性，从而降低乙烯释放量并且使乙烯释放高峰延时出现。
- Abstract:
- With ‘Baili’ peach as experimental material，the change of PG，PMB，ACC synthase and ACC oxidase enzyme content were studied under different ABA and NDGA treatment on the fruit that store at room temperature.Explored the impact of ABA on fruit ripening and softening storaged at room temperature and ethylene biosynthesis.The results showed that ABA treatment could increase the activity of the PG and PME，accelerate fruit softening.ABA treatment could increase the activity of ACC synthase and ACC oxidase.ABA treatment could make the fruit ethylene production and ethylene release peak appear in advance.NDGA treatment could inhibit the activity of PG.NDGA treatment had no significant effect on the activity of PME，but higher than water.NDGA could delay the fruit softening.NDGA could inhibit the activity of ACC synthase and ACC oxidase in order to reduce ethylene production and ethylene release peak delay appears.
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备注/Memo
第一作者简介：刘廷旭（1985-），男，硕士，研究方向为果树分子生物学。E-mail:liutingxu@yahoo.com.cn.