ZHANG Yanping,SUN Qiaoyan,DU Yicheng,et al.Effects of Exogenous IAA Treatment on Endogenous Hormone Content in Peach Fruit[J].Northern Horticulture,2019,43(21):33-38.[doi:10.11937/bfyy.20190948]
外源IAA处理对桃果实中内源激素含量的影响
- Title:
- Effects of Exogenous IAA Treatment on Endogenous Hormone Content in Peach Fruit
- 文献标志码:
- A
- 摘要:
- 以水蜜桃品种‘小白凤’的果实为试材，在花后10 d用2×10-4 mol?L-1的外源IAA进行活体浸果处理，处理后每隔10 d取样一次，直至果实成熟，研究果实发育过程中及IAA处理后，桃果肉和种子中IAA、ABA和JA-Me含量的变化，以期为研究IAA处理对桃果实生长发育的影响及3种激素交叉信号通路调节桃果实成熟方面的机理奠定基础。结果表明：随着果实发育成熟，桃果肉中IAA和JA-Me含量逐渐下降，ABA含量在果实成熟期最高；种子中IAA含量在整个发育过程中变化不显著，ABA含量在果实发育前期变化不大，在果实成熟期含量最高，JA-Me含量随果实发育逐渐降低；IAA处理后对果肉和种子中IAA、ABA和JA-Me含量均造成了一定的影响，说明植物内源激素协同作用，共同调控桃果实的生长发育和成熟。
- Abstract:
- In order to study the effects of IAA treatment on the growth and development of peach fruit and the mechanism of IAA，ABA and JA-Me hormone cross-signal pathways regulating the ripening of peach fruit in the future.Using the fruit of peach（Prunus persica）cultivar ‘Xiaobaifeng’ as experimental materials,the fruits were treated with 2×10-4 mol?L-1 exogenous IAA after flowering，then sampled every 10 days after treatment until fruit ripening，changes in IAA，ABA and JA-Me contents in peach pulp and seeds during fruit development were studied.The results showed that the content of IAA and JA-Me in peach pulp decreased gradually with the development and maturity of the fruit，and the ABA content was the highest in the fruit maturity stage.In seeds，the content of IAA did not change significantly during the whole development process，the content of ABA did not change much in the early stage of fruit development，but the content was the highest in the fruit maturity stage，the content of JA-Me decreased gradually with fruit development.IAA treatment had some effect on the content of IAA，ABA and JA-Me in the pulp and seeds，indicated that endogenous hormones of plants acted together to regulate the growth，development and maturation of peach fruits.
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备注/Memo
第一作者简介：张彦苹（1986-），女，博士，讲师，研究方向为果树生理及分子生物学。E-mail:ypzhang@szai.edu.cn.基金项目：江苏省自然科学基金资助项目(BK20160360)；大学生创新创业省级指导资助项目（201812808003Y）；江苏省科协青年科技人才托举工程资助项目（2018）。收稿日期：2019-04-30