[1]谢寅峰,林候,张千千,等.鹅毛竹花后叶片衰老生理特性[J].南京林业大学学报(自然科学版),2009,33(06):039.[doi:10.3969/j.jssn.1000-2006.2009.06.009]
 XIE Yin feng,LIN Hou,ZHANG Qian qian,et al.Physiological characteristics of leaf senescence in Shibataea chinensis after anthesis[J].Journal of Nanjing Forestry University(Natural Science Edition),2009,33(06):039.[doi:10.3969/j.jssn.1000-2006.2009.06.009]
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鹅毛竹花后叶片衰老生理特性
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《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

卷:
33
期数:
2009年06期
页码:
039
栏目:
研究论文
出版日期:
2009-11-30

文章信息/Info

Title:
Physiological characteristics of leaf senescence in Shibataea chinensis after anthesis
作者:
谢寅峰1林候2张千千1张春霞1
1.南京林业大学森林资源与环境学院,江苏南京210037;2.厦门理工学院管理科学系,福建厦门361024
Author(s):
XIE Yinfeng1 LIN Hou2 ZHANG Qianqian1 ZHANG Chunxia1
1.College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China; 2.Department of Management Science, Xiamen University of Technology, Xiamen 361024, China
关键词:
鹅毛竹花后生理变化叶片衰老
Keywords:
Shibataea chinensis after anthesis physiological changes leaf senescence
分类号:
S718
DOI:
10.3969/j.jssn.1000-2006.2009.06.009
文献标志码:
A
摘要:
以鹅毛竹为材料,以未开花竹为对照,分析了鹅毛竹花后叶片生理变化特性。结果表明:鹅毛竹开花后总体上叶片叶绿素、可溶性蛋白质和糖含量不断下降,并始终低于未开花竹相应指标,而可溶性糖与蛋白质含量比值、MDA含量呈不断增加趋势,并始终高于未开花竹相应指标。随着试验时间的延长,上述各指标的变幅以及与未开花竹的差距增大,表明花后叶片衰老逐渐加快。开花初期开花竹叶片SOD活性明显高于未开花竹,而POD、CAT活性明显低于未开花竹,后期开花竹各保护酶活性的变幅明显大于未开花竹,表明鹅毛竹开花后保护酶系统间的平衡失调。推测活性氧的大量产生以及保护酶系统间平衡失调导致的膜脂过氧化程度增加,膜以及蛋白质等生物大分子结构与功能的破坏及其降解等可能是开花竹花后叶片衰老加快的主要原因之一。
Abstract:
In order to explore the physiological change of leaf senescence of bamboos after anthesis, Shibataea chinensis was taken as experimental material. The results showed that the contents of chlorophyll, soluble protein and soluble sugar of bamboos after anthesis decreased gradually, which were always lower than those of the control group during the experiment. But the changes in ratio of soluble sugar content to soluble protein, and MDA content increased gradually, which were higher than those of control group throughout the experiment. With the prolongation of testing time, the variation range of indexes and the gap compared to the control indicated that leaf senescence of bamboos accelerated gradually after anthesis. At the early flowering stage, the SOD activity of flowering bamboo was significantly higher than those in the control group, but the POD and CAT activities were significantly lower. At the late stage, the change degrees of protective enzyme activities were significantly higher than those of control group, which showed the imbalance of protective enzyme system. We guess that production of a great quantity of active oxygen and imbalance of protective enzyme system led to the destruction and degradation of the structures and functions of biomembrane and biomacromolecule and the aggravation of the lipid peroxidation, which may be one of the main cause that accelerates the leaf senescence of bamboos after anthesis.

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备注/Memo

备注/Memo:
收稿日期:2009-06-30修回日期:2009-10-12基金项目:国家自然科学基金资助项目(39900115);江苏省高校自然科学基金资助项目(05KJB220053)作者简介:谢寅峰(1966—),副教授,研究方向为树木生理生化。Email: xxyyff@njfu.com.cn。引文格式:谢寅峰,林候,张千千,等. 鹅毛竹花后叶片衰老生理特性[J]. 南京林业大学学报:自然科学版,2009,33(6):39-43.
更新日期/Last Update: 2009-11-30