LIU Guoqin,HE Songtao,LIU Jinping,et al.Changes of Some Physiological Indexes of Antioxidation Metabolism in Floral Buds of Peach During Dormancy[J].Northern Horticulture,2017,41(05):1-5.[doi:10.11937/bfyy.201705001]
桃花芽休眠期间部分抗氧化代谢生理指标的变化
- Title:
- Changes of Some Physiological Indexes of Antioxidation Metabolism in Floral Buds of Peach During Dormancy
- Keywords:
- Prunus persica L.var.densa Makino cv.‘Zhonghuashoutao’; floral bud; dormancy; antioxidation metabolism
- 文献标志码:
- A
- 摘要:
- 以‘中华寿桃’（Prunus persica L.var.densa Makino cv.‘Zhonghuashoutao’）为试材，连续2年研究其花芽在自然休眠过程中部分生理指标的变化规律。结果表明：‘中华寿桃’花芽在2013—2015年2年度间休眠进程、可溶性蛋白质含量、总氨基酸含量、过氧化物酶（POD）活性、过氧化氢（H2O2）含量和抗坏血酸（AsA）含量不同；2013—2014年度花芽内休眠维持时间比2014—2015年度长，2013—2014年度可溶性蛋白质含量高于2014—2015年度，而总氨基酸、POD活性、H2O2含量和AsA含量都低于2014—2015年度；2年度‘中华寿桃’花芽内休眠及其解除过程中花芽可溶性蛋白质含量逐渐降低，而总氨基酸含量则逐渐升高，POD活性和H2O2含量呈相似的变化趋势；AsA含量呈现“升-降-升-降”的变化规律，但最高值和最低值出现的时间在年度间有所不同。
- Abstract:
- The changes of some physiological indexes of antioxidation metabolism were studied in floral buds of ‘Zhonghuashoutao’ peach during the dormancy for two successive years.The results showed that there were some differences in dormancy progression，soluble protein content，total amino acids content，POD activity，H2O2 content，and AsA content in floral buds.The time of endodormancy maintenance of floral buds in 2013—2014 was longer than that of floral buds in 2014—2015.The content of soluble protein gradually decreased，however，the total amino acids content gradually increased during endodormancy and dormancy release.POD activity and H2O2 content occurred on the same change.It appeared the trend of variation ‘up-down-up-down’.But there was difference in the occurring date of maximum and minimum values of AsA content between two years.
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备注/Memo
第一作者简介：刘国琴（1975-），女，博士，副教授，现主要从事植物生理与分子生物学等研究工作。E-mail：liuguoqin75@126.com.基金项目：国家自然科学基金资助项目（31560537）；贵州省科学技术基金资助项目（黔科合J[2015]2040号）；贵州大学引进人才科研资助项目（贵大人基合字（2013）24 号）。