大气CO2浓度升高对香蕉光合作用及光合碳循环过程中叶氮分配的影响

应用生态学报 ›› 2001, Vol. ›› Issue (3): 429-434.

大气CO₂浓度升高对香蕉光合作用及光合碳循环过程中叶氮分配的影响

孙谷畴, 赵平, 曾小平, 彭少麟

1. 中国科学院华南植物研究所, 广州 510650;
2. 中国科学院广州分院, 广州 510070

收稿日期:1999-12-27 修回日期:2000-05-08 出版日期:2001-05-25
通讯作者: 赵平
基金资助:
国家自然科学基金重大项目(39899370);广东省自然科学基重大项目(980952);中国科学院“九五”重大项目(KZ951B110)资

Influence of elevated atmospheric CO₂ concentration on photosynthesis and leaf nitrogen partition in process of photosynthetic carbon cycle in Musa paradisiaca

SUN Guchou, ZHAO Ping, ZENG Xiaoping, PENG Shaolin

1. South China Institute of Botany, Chinese Academy of Sciences, Guangzhou 510650;
2. Guanzhou Branch, Chinese Academy of Sciences, Guangzhou 510070

Received:1999-12-27 Revised:2000-05-08 Online:2001-05-25

摘要/Abstract

摘要： 生长在高CO₂浓度(700±5μl·L^-1)1周的香蕉叶片,其光合速率(Pn,μmol·m^-2·s^-1)为5.14±0.32,较生长在大气CO₂浓度(356±301μl·L^-1)的高22.1%,而生长在较高CO₂浓度下8周,叶片Pn较生长在大气CO₂浓度的低18.1%,表现香蕉叶片对较长期高CO₂浓度的驯化和光合作用抑制.生长在高CO₂浓度的香蕉叶片有较低光下呼吸速率(R_d),而不包括光下呼吸的CO₂补偿点则变幅较小.最大羧化速率(Vcmax)和电子传递速率(J)分别较生长在大气CO₂浓度的低30.5%和14.8%,根据气体交换速率计算的表观量子产率(α,mol CO₂·mol^-1光量子),生长在较高CO₂浓度下8周的叶片为0.014±0.01,而生长在大气CO₂浓度下的为0.025±0.005.较高CO₂浓度下叶片的表观量子产率降低44%.光能转换效率electrons·quanta^-1)亦从0.203降低至0.136.生长在较高CO₂浓度下香蕉叶片的叶氮在Rubicos分配系数(PR)、叶氮在生物力能学组分分配系数(P_B)和叶氮在光捕组分的分配系数(P_L)均较生长在大气CO₂浓度低,表明在高CO₂浓度下较长期生长(8周)的香蕉叶片多个光合过程受抑制,光合活性明显降低.

Abstract: The photosynthetic rate (Pn) in leaves of Musa paradisiaca grown under elevated CO₂ concentration (700±56μl·L^-1 ) for one week was 5.14±0 32μmol·m^-2 ·s^-1,22.1% higher than that under ambient CO₂ concentration,while under elevated CO₂ concentration for 8 week,the Pn decreased by 18.1%.It can be inferred that the photosynthetic acclimation to elevated CO₂ concentration and the Pn inhibition occurred in leaves of M.paradisiaca.The respiration rate in light (Rd) was lower in leaves under higher CO₂ concentration,compared with that under ambient CO₂ concentration.If the respiration in light was not included,the difference in CO₂ compensation point for the leaves of both plants was not significant.Under higher CO₂ concentration for 8 weeks,the maximum carboxylation rate(Vcmax)and electron transportation rate (J) in leaves decreased respectively by 30.5% and 14.8%,compared with that under ambient CO₂ concentration.The calculated apparent quantum yield (α) in leaves under elevated CO₂ concentration according to the initial slope of Pn/PAR was reduced to 0.014±0.010 molCO₂·mol^-1 quanta,compared with the value of 0.025±0.005molCO₂·mol^-1 quanta in the control.The efficiency of light energy conversion also decreased from 0.203 to 0.136 electrons·quanta^-1 in plants under elevated CO₂ concentration.A lower partitioning coefficient for leaf nitrogen in Rubisco,bioenergetics and thylakoid light harvesting components was observed in plants under higher CO₂ concentration.The results indicated that the multi process of photosynthesis was suppressed significantly by a long term(8 weeks) higher CO₂ concentration incubation.

中图分类号:

Q949

孙谷畴, 赵平, 曾小平, 彭少麟. 大气CO₂浓度升高对香蕉光合作用及光合碳循环过程中叶氮分配的影响[J]. 应用生态学报, 2001, (3): 429-434.

SUN Guchou, ZHAO Ping, ZENG Xiaoping, PENG Shaolin. Influence of elevated atmospheric CO₂ concentration on photosynthesis and leaf nitrogen partition in process of photosynthetic carbon cycle in Musa paradisiaca[J]. Chinese Journal of Applied Ecology, 2001, (3): 429-434.

参考文献

[1] Amthor JS. 1997. Plant respiratory responses to elevated CO₂ partial pressure. In:Allen LH, Kirkham MB eds Advances in Carbon Dioxide Effects Research. American Society of Agronomy, Madison. W1. 35～77 [2] Andrews JT, Lorimer GH. 1987. Rubisco:structure, mechanism and prospects for improvement I. Biochemistry of Plants, Vol. 10 ( eds.Hatch MD and Broadmann NK), New York:Academic Press. 130～207 [3] Brooker SA, Farquhar GD. 1985. Effect of temperature on the CO-2/O₂ specificity of Ribulose-1, 5 bisphosphate carboxylase/oxygenase and the rate of respiration in light. Estimates from gas exchange measurement on spinach. Planta, 165:397～406 [4] Browes G. 1993. Facing the inevitable:plants and increasing atmospheric CO₂. Ann Rev Plant Physiol Plant Mol Biol, 34:309～332 [5] Curtis PS. 1996. A meta-analysis of leaf gas exchange and nitrogen in tree grown under elevated carbon dioxide. Plant Cell Environ, 19:121～137 [6] Evans JR. 1989. Photosynthetic and nitrogen relationships in leaves of C3 plants. Oecologia, 78:8～19 [7] Evans JR, Seemann JR. 1988. The allocation of protein nitrogen in the photosynthetic apparatus:costs, consequences, and control in photosynthesis. In:Briggs WR ed. Proceedings of the C. S. French Symposium on Photosynthesis held in Standford, California, July 17-23, Plant Biology 8. New York:Alan R. Liss. Inc. 183～205 [8] Farquhar GD, Wong SC. 1994. An empirical model of stomatal conductance. Aust J Plant Physiol, 11:191～210 [9] Friend AD. 1995. An integrated model of leaf photosynthesis transpiration and conductance. E colMod, 77:233～255 [10] Harley PC, Tenhunen JD. 1990. Modeling the photosynthetic response of C3 leaves to environmental factors. In:Boote K ed. Modeling crop photosynthesis-from biochemistry to canopy, CSSA special publication No. 19. Madison:American Society of Agronomy and Crop Science Society of America. 17～19 [11] Hikosaka K, Terashima I. 1995. A model of the acclimation of photosynthesis in leaves of C3 plants to sun and shade with respect to nitrogen use. Plant Cell Environ, 18:605～618 [12] Jordan DB, Ogren WL. 1984. The CO₂/C2 specificity of Ribulose 1, 5-bisphosphate carboxylase/oxygenase. Dependence on ribulose bisphosphate concentration, pH and temperature. Planta, 161:308～313 [13] Kellomaki S, Wang KY. 1997. Effects of elevated O₂ and CO₂ concentration on photosynthesis and stomatal conductance in scots pine. Plant Cell Environ, 20:995～1006 [14] Leuning RA. 1995. Critical appraisal of a combined stomatal-photosynthesis model for ¹⁴C3 plants. Plant Cell Environ, 18:339～357 [15] Long GP. 1991. Modification of the response of photosynthetic produc tivity to rising temperature by atmospheric CO₂ concentration:Has its importance been under estimated? Opinion. Plant Cell Environ, 14:729～739 [16] Nolan WG, Smille RM. 1976. Multi-temperature effects on Hill reaction activity of barley chloroplasts. Biochem et Biophysica Acta, 440:461～475 [17] Rogens GS, Milham PJ, Giiings M et al. 1996. Sink strength may be the key to growth and nitrogen response in N-deficient wheat at elevated CO₂. Aust J Plant Physiol, 23:253～264 [18] Sage RF, Sharkey TD, Seemann JR. 1989. Acclimation of photosynthesis to elevated CO₂ in five C3 species. Plant Physiol, 89:590～596 [19] Stitt M. 1991. Rising CO₂ levels end their potential significance for carbon flow in photosynthetic cells. Plant Cell Environ, 14:741～762 [20] Wang KY, Kellomaki S. 1997. Effects of elevated CO₂ and soil-nitrogen supply on chlorophyll fluorescence end gas exchange in Scots Pine,based on a branch-in bag experiment. New Ph ytologist, 136:277～286 [21] Yelle S, Beeson RC, Trudel MJ et al. 1989. Acclimation of two tomato species to high atmospheric CO₂ I. Ribulose 1,5-bisphoshate carboxylase/oxygenase and phosphoenolphruvate carboxylase. Plant Phsiol,90:1473～1477

大气CO₂浓度升高对香蕉光合作用及光合碳循环过程中叶氮分配的影响

Influence of elevated atmospheric CO₂ concentration on photosynthesis and leaf nitrogen partition in process of photosynthetic carbon cycle in Musa paradisiaca

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	包维楷, 雷波, 冷俐. 六种人工针叶幼林下地表苔藓植物生物量与碳贮量 [J]. 应用生态学报, 2005, 16(10): 1817-1821.
[2]	杨旭, 于明坚, 丁炳扬, 徐双喜, 叶立新. 凤阳山白豆杉种群结构及群落特性的研究 [J]. 应用生态学报, 2005, 16(7): 1189-1194.
[3]	王春玲, 郭泉水, 谭德远, 史作民, 马超. 准噶尔盆地东南缘不同生境条件下梭梭群落结构特征研究 [J]. 应用生态学报, 2005, 16(7): 1224-1229.
[4]	张晓峰, 孔繁翔, 曹焕生, 谈建康, 陶益, 王美林. 太湖梅梁湾水华蓝藻复苏过程的研究 [J]. 应用生态学报, 2005, 16(7): 1346-1350.
[5]	白月明, 王春乙, 温民. 大豆对臭氧、二氧化碳及其复合效应的响应 [J]. 应用生态学报, 2005, 16(3): 545-549.
[6]	孙军, 刘东艳, 陈宗涛, 魏天迪. 不同氮磷比率对青岛大扁藻、新月柱鞘藻和米氏凯伦藻生长影响及其生存策略研究 [J]. 应用生态学报, 2004, (11): 2122-2126.
[7]	余长军, 戴玉成, 王政权. 大兴安岭林区火烧迹地木腐菌主要类群的初步研究 [J]. 应用生态学报, 2004, (10): 1781-1784.
[8]	谢树莲. 娘子关泉胶串珠藻生长和分布的季节动态 [J]. 应用生态学报, 2004, (10): 1931-1934.
[9]	魏玉莲, 戴玉成. 木材腐朽菌在森林生态系统中的功能 [J]. 应用生态学报, 2004, (10): 1935-1938.
[10]	岑伊静, 庞雄飞, 周琼, 彭跃峰, 徐长宝. 非嗜食植物提取物对桔全爪螨产卵的驱避性测定 [J]. 应用生态学报, 2004, (9): 1687-1690.
[11]	冯海艳, 冯固, 王敬国, 李晓林. 植酸钠对菌根真菌根内菌丝碱性磷酸酶活性及根外菌丝生长的影响 [J]. 应用生态学报, 2004, (6): 1009-1013.
[12]	叶吉, 郝占庆, 戴冠华. 长白山暗针叶林苔藓植物生物量的研究 [J]. 应用生态学报, 2004, (5): 737-740.
[13]	李佑稷, 李菁, 陈军, 黄国文. 不同含水量下尖叶拟船叶藓光合速率对光温的响应及其模型 [J]. 应用生态学报, 2004, (3): 391-395.
[14]	许振柱, 周广胜. 植物氮代谢及其环境调节研究进展 [J]. 应用生态学报, 2004, (3): 511-516.
[15]	孙谷畴, 赵平, 曾小平, 彭少麟. 柚树叶片CO₂驯化的光合参数变化 [J]. 应用生态学报, 2004, (1): 9-14.