[1]徐婷婷,毕江涛,马飞.毛乌素沙地2种锦鸡儿属植物的光合生理特性[J].森林与环境学报,2016,36(01):48-53.[doi:10.13324/j.cnki.jfcf.2016.01.008]
 XU Tingting,BI Jiangtao,MA Fei.Photosynthetic characteristics of Caragana species in Mu Us sandy land[J].,2016,36(01):48-53.[doi:10.13324/j.cnki.jfcf.2016.01.008]
点击复制

毛乌素沙地2种锦鸡儿属植物的光合生理特性()
分享到:

《森林与环境学报》[ISSN:2096-0018/CN:35-1327/S]

卷:
36
期数:
2016年01期
页码:
48-53
栏目:
出版日期:
2016-01-15

文章信息/Info

Title:
Photosynthetic characteristics of Caragana species in Mu Us sandy land
作者:
徐婷婷1 毕江涛2 马飞2
1. 宁夏大学生命科学学院, 宁夏 银川 750021;
2. 宁夏大学新技术应用研究开发中心, 宁夏 银川 750021
Author(s):
XU Tingting1 BI Jiangtao2 MA Fei2
1. School of life science, Ningxia University, Yinchuan, Ningxia 750021, China;
2. New Technology Application, Research and Development Center, Ningxia University, Yinchuan, Ningxia 750021, China
关键词:
中间锦鸡儿柠条锦鸡儿替代分布光合特征稳定碳氮同位素
Keywords:
Caragana liouana Zhao Y. Chang & Yakovlev FlC. korshinskii Komvicarious distributionphotosynthetic characteristicsstable carbon and nitrogen isotopes
分类号:
Q945.79
DOI:
10.13324/j.cnki.jfcf.2016.01.008
摘要:
本研究比较了生长于毛乌素沙地中间锦鸡儿和柠条锦鸡儿的光合特性、叶片同位素组成以及元素含量等生理生态特征,探讨2种锦鸡儿对毛乌素沙地区域环境的适应性差异。结果表明:中间锦鸡儿的净光合速率(Pn)、气孔导度(Gs)、蒸腾速率(Tr)和胞间CO2浓度(Ci)显著高于柠条锦鸡儿,但是瞬时水分利用效率(WUEi)和叶片稳定碳同位素(δ13C)显著低于柠条锦鸡儿;柠条锦鸡儿的PSⅡ有效光化学效率(Fv’/Fm’)、电子传递速率(ETR)、PSⅡ实际光化学效率(ΦPSⅡ)和光化学淬灭系数(qP)在高光强下显著高于中间锦鸡儿;中间锦鸡儿的叶片氮含量(N%)显著高于柠条锦鸡儿,但是稳定氮同位素(δ15N)却显著低于柠条锦鸡儿。结果说明在毛乌素沙地环境下2种锦鸡儿的主要叶片性状存在明显差异,中间锦鸡儿通过较高的GsTrCi以及较高的固氮能力维持更高的光合速率,表现出较强的适应性,而柠条锦鸡儿较高的水分利用效率及较强的光能利用能力,有助于其适应更为干旱的生存环境,在一定程度上为理解2种锦鸡儿的地理替代分布机制提供了数据支持。
Abstract:
Ecophysiological traits were compared between two closely related species, Caragana liouana and C. korshinskii in Mu Us sandy land to test their adaptability to local environment. Our results indicated that C. liouana had significantly higher net photosynthetic rate (Pn), stomatal conductance (Gs), transpiration rate (Tr) and intercellular CO2 (Ci) than C. korshinskii at high PAR. However, the instantaneous water use efficiency (WUEi) and long term WUE (δ13C) were high in C. korshinskii than those in C. liouana. The Fv’/Fm’, ETR, ΦPSⅡ and qP were also significantly higher in C. korshinskii than those in C. liouana, but the qP was not significant. Leaf nitrogen content (N%) of C. liouana was significantly higher than that of C. korshinskii but its nitrogen isotope composition (δ15N) showed relatively lower values. Overall, C. liouana showed higher Pn by maintaining higher levels of Gs, Tr, Ci and N%, but C. korshinskii showed higher water use efficiency and capacity for nitrogen fixation, light utilization and dissipation, tending to exhibit higher capacity to adapt drought conditions. Those results can support the mechanisms underlying the vicarious distribution of the two species.

参考文献/References:

[1] MA C C, GAO Y B, GUO H Y, et al. Photosynthesis, transpiration, and water use efficiency of Caragana microphylla, C. intermedia, and C. korshinskii[J]. Photosynthetica, 2004,42(1):65-70.
[2] 周海燕,张景光,龙利群,等.脆弱生态带典型区域几种锦鸡儿属优势灌木的光合特征[J].中国沙漠,2001,21(3):227- 231.
[3] MA C C, GAO Y B, LIU H F, et al. Interspecific transition among Caragana microphylla, C. liouana and C. korshinskii along geographic gradient: Ⅰ. ecological and RAPD evidence[J]. Acta Botanica Sinica, 2003,45(10):1 218-1 227.
[4] MA C C, GAO Y B, GUO H Y, et al. Interspecific transition among Caragana microphylla, C. liouana and C. korshinskii along geographic gradient: Ⅱ. characteristics of photosynthesis and water metabolism[J]. Acta Botanica Sinica, 2003,45(10):1 228-1 237.
[5] 刘芳,黄雅茹,陈海玲,等.内蒙古乌兰布和沙漠主要灌木光合日变化特征比较研究[J].水土保持研究,2015,22(3):155-162.
[6] MALHI Y, DOUGHTY C E, GOLDSMITH G R, et al. The linkages between photosynthesis, productivity, growth and biomass in lowland Amazonian forests[J]. Global Change Biology, 2015,21(6):2 283-2 295.
[7] ENQUIST B J, KERKHOFF A J, STARK S C, et al. A general integrative model for scaling plant growth, carbon flux, and functional trait spectra[J]. Nature, 2007,449(7 159):218-222.
[8] WRIGHT I J, REICH P B, WESTOBY M, et al. The leaf economics spectrum worldwide[J]. Nature, 2004,428(6 985):821-827.
[9] SCHULZE E D, NICOLLE D, BOERNER A, et al. Stable carbon and nitrogen isotope ratios of Eucalyptus and Acacia species along a seasonal rainfall gradient in Western Australia[J]. Trees, 2014,228(4):1 125-1 135.
[10] GENTY B, BRIANTAIS J M, BAKER N R. The relationship between the quantum yield of photosynthetic electron transport and quenching of chlorophyll fluorescence[J]. Biochimica et Biophysica Acta, 1989,990(1):87-92.
[11] GUAN Y X, DAI J Y, LIN Y. The photosynthetic stomatal and nonstomatal limitation of plant leaves under water stress[J]. Plant Physiology Communications, 1995,31(4):293-297.
[12] XU D Q. Some noteworthy problems in measurement and investigation of photosynthesis[J]. Plant Physiology Communications, 2006,42(6):1 163-1 167.
[13] GALMÉS J, CONESA M À, OCHOGAVÍA J M, et al. Physiological and morphological adaptations in relation to water use efficiency in mediterranean accessions of Solanum lycopersicum[J]. Plant, Cell and Environment, 2011,34(2):245-260.
[14] FLEXAS J, RIBAS-CARBO M, DIAZ-ESPEJO A, et al. Mesophyll conductance to CO2: current knowledge and future prospect[J]. Plant, Cell and Environment, 2008,31(5):602-631.
[15] EVANS J R. Photosynthesis and nitrogen relationships in leaves of C3 plants[J]. Oecologia, 1989,78(1):9-19.
[16] ONODA Y, HIKOSAKA K, HIROSE T. Allocation of nitrogen to cell walls decreases photosynthetic nitrogen use efficiency[J]. Functional Ecology, 2004,18(3):419-425.
[17] 姚允寅,陈明,王志东,等.百里荒牧场饲草15N天然丰度值的测定及其固氮能力初评[J].中国草地,1992(2):20-24.
[18] DIAS M C, FIGUEIREDO P, DUARTE I F, et al. Different responses of young and expanded lettuce leaves to fungicide mancozeb: chlorophyll fluorescence, lipid peroxidation, pigments and proline content[J]. Photosynthetica, 2014,52(1):148-151.
[19] 张谧,王慧娟,于长青.超旱生植物沙冬青高温胁迫下的快速叶绿素荧光动力学特征[J].生态环境学报,2009,18(6):2 272-2 277.
[20] 张守仁.叶绿素荧光动力学参数的意义及讨论[J].植物学通报,1999,16(4):444-448.
[21] 黄海霞,王刚,陈年来.荒漠灌木逆境适应性研究进展[J].中国沙漠,2010,30(5):1 060-1067.

备注/Memo

备注/Memo:
收稿日期:2015-6-28;改回日期:2015-9-8。
基金项目:国家自然科学基金项目(31260166,313601850);"十二五"国家科技支撑计划课题(2013BAD11B03-7)。
作者简介:徐婷婷(1982-),女,讲师,博士,从事植物生态学研究。E-mail:gracetine@163.com。
通讯作者:马飞(1982-),男,副研究员,博士,从事植物生理生态研究。E-mail:mafei05@163.com。
更新日期/Last Update: 1900-01-01