CHENG Hua,LI Lin-ling,WANG Shao-bin,et al.The Relationship Between Flower Bud Differentiation and the Changes of Metabolism-related Enzyme Activity in Castanea mollissima ‘Bayuehong’[J].Northern Horticulture,2013,37(20):6-9.
罗田“八月红”板栗花芽分化与相关酶活性的变化
- Title:
- The Relationship Between Flower Bud Differentiation and the Changes of Metabolism-related Enzyme Activity in Castanea mollissima ‘Bayuehong’
- 文章编号:
- 1001-0009(2013)20-0006-04
- Keywords:
- chestnut; flower bud differentiation; enzymatic activity
- 分类号:
- S 664.2
- 文献标志码:
- A
- 摘要:
- 以罗田板栗主栽品种“八月红”为试材，研究分析了板栗花芽分化过程中相关酶活性的变化规律，以期为果树育种工作的顺利进行提供理论基础和技术支撑。结果表明：板栗雌花分化过程中吲哚乙酸（IAA）的大量氧化有利于板栗植株完成从营养生长到生殖生长的转变，从而完成有序花芽分化；过氧化氢酶（CAT）活性随着花芽分化进程的进行不断增强，后期增加趋势转为平缓；过氧化物酶（POD）活性在花芽分化前逐渐上升直到花芽分化期活性达到最高值，之后呈现一段时间的下降趋势；不同分化时期淀粉酶活性降低有利于板栗花芽分化。
- Abstract:
- Taking Castanea mollissima ‘Bayuehong’ as material，the relationship between flower bud differentiation and related enzyme activity in ‘Bayuehong’ were studied，in order to provide theoretical basis and technical support for the work of fruit genetic breeding.The results showed that the IAA content decreased due to the large number of oxidation in the process of chestnut female flower differentiation；the CAT activity in chestnut flower buds was increasing as the flower bud differentiation went on,but the increasing trend became gentle in the last period；the change of peroxidase activity in front of the flower bud differentiation increased gradually until the activity reached to the highest value in the flower bud differentiation stage；the decreasement of amylase activity in the differentiation period was beneficial to the flower bud differentiation.
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备注/Memo
第一作者简介：程华(1980-)，男，湖北麻城人，博士，讲师，现主要从事经济林种质资源评价与利用等研究工作。E-mail：chenghua1437@126.com.