[1]吴志庄,李伟成*,熊德礼,等.不同竹龄青皮竹光合作用与荧光特性的比较[J].西北林学院学报,2013,28(06):33-36.[doi:10.3969/j.issn.1001-7461.2013.06.06]
　WU Zhi-zhuang,LI Wei-chen*,XIONG De-li,et al.A Comparative Study on Photosynthetic and Fluorescence Characteristicsamong Different Aged Bambusa textilis[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2013,28(06):33-36.[doi:10.3969/j.issn.1001-7461.2013.06.06]
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不同竹龄青皮竹光合作用与荧光特性的比较()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第28卷
期数:
2013年06期
页码:
33-36
栏目:
出版日期:
2013-11-30

文章信息/Info

Title:
A Comparative Study on Photosynthetic and Fluorescence Characteristicsamong Different Aged Bambusa textilis
文章编号:
1001-7461(2013)06-0033-04
作者:
吴志庄1; 2;  李伟成1*;  熊德礼3; 王树东1; 周 妍1
1.国家林业局竹子研究开发中心,浙江 杭州 310012;
2.北京林业大学 生物科学与技术学院,北京 100083;
3.湖北省林业科学研究院,湖北 武汉 430079
Author(s):
WU Zhi-zhuang1; 2;  LI Wei-chen1*;  XIONG De-li3;  WANG Shu-dong1;  ZHOU Yan1
1.China National Bamboo Research Center, Hangzhou,Zhengjiang 310012, China;
2.Collegeof Biological Sciences and Technology,Beijing Forestry University,Beijing 100083,China;
3.Hubei Forestry Institute,Wuhan, Hubei 430079,China
关键词:
青皮竹;  净光合速率;  光响应;  荧光特性
Keywords:
Bambusa textilis;  net photosynthetic rate;  light response curve;  fluorescence characteristic
分类号:
S795.9
DOI:
10.3969/j.issn.1001-7461.2013.06.06
文献标志码:
A
摘要:
对不同竹龄青皮竹的光合与荧光特征研究表明:不同竹龄的青皮竹净光合速率(Pn)差异显著,1龄竹的净光合速率大于8 μmol·m-2·s-1,明显高于3龄竹,说明随着竹龄增加,青皮竹光合固碳能力有所下降。气孔导度(Cond) 、胞间CO2浓度(Ci)、蒸腾速率(Tr)3个性状都表现为1龄竹>2龄竹>3龄竹。水分利用效率(WUE)表现相反,为3龄竹>2龄竹>1龄竹。光响应曲线表明,当光强始增强时,各竹龄间差异较小,但随着光强的继续增加,不同竹龄出现很大的差异,其中,1龄竹光补偿点和光饱和点相对较高,其潜在净光合速率也高于其它竹龄的青皮竹。青皮竹最大荧光效率(Fv/Fm)平均为0.590 5,光系统Ⅱ活性(Fv/Fo )平均为1.442 0,各叶绿素荧光参数都随着年龄增加而降低,但差异不显著。
Abstract:
A study on the photosynthetic and fluorescence characteristics of Bambusa textilis was conducted. The results showed significant differences in net photosynthetic rate(Pn)among different aged Bambusa textilis. The net photosynthetic rate of 1 age bamboos exceeded8 μmol·m-2·s-1, much higher than that of 3 age ones, which indicated a decreasing trend of photosynthetic carbon sequestration capacity of B. textilis with its age increased. All of the 3 characters of stomatic conductance(Cond), CO2 intercellular concentration(Ci)and transpiration rate(Tr)showed a same trend of 1 age bamboo > 2 age bamboo > 3 age bamboo. Contrarily, water use efficiency(WUE)showed an opposite rule of 3 age bamboo> 2 age bamboo > 1 age bamboo. And for light response curve, the differences among various aged bamboos were small at the initial stage of light increase, but apparent differences among them were observed with further light increase. It was relatively higher for 1 age bamboo on its light compensation point and light saturation point, same as its potential net photosynthetic rate(Pmax). The average maximum fluorescence efficiency (Fv/Fm) and activity of photosystemⅡ(Fv/Fo)of B. textilis were 0.590 5 and 1.442 0, respectively, and the fluorescence parameters tended to decrease with increasing age, but having not significant difference.

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备注/Memo

备注/Memo:
收稿日期:2013-04-09 修回日期:2013-06-21
基金项目:公益性林业行业科研专项(201004001); 中央级公益性科研院所基本科研业务费专项资金(CAFYBB2012025); 浙江省科技厅计划项目(2011F20008)。
作者简介:吴志庄,男,博士,研究方向:林木遗传育种和能源植物开发利用。E- mail:wzzcaf@126.com
*通信作者:李伟成,男,博士,研究方向:森林生态学和系统生态学。E- mail:leewis-1978@163.com
更新日期/Last Update: 2013-11-30