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

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.

关键词: 香蕉, 高CO₂浓度, 光合速率, 叶N分配

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.

Key words: Musa paradisiaca, Higher CO₂ concentration, Photosynthetic rate, Leaf nitrogen partition

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]	王晶晶, 蔡汭佳, 张瑞, 王传宽, 全先奎. 兴安落叶松针叶光合能力对气候变暖的响应 [J]. 应用生态学报, 2025, 36(8): 2297-2306.
[2]	冯臣成, 李迅东, 毛佳, 徐胜涛, 夏体渊, 凌辉, 刘立娜, 尹可锁. 香蕉花蕾苞片挥发物对西花蓟马的驱避作用 [J]. 应用生态学报, 2025, 36(4): 1244-1250.
[3]	杨雲雲, 晏斌, 许勤勤, 秦楚乔, 胡亚林. 昆虫取食对亚热带幼树叶挥发性有机化合物释放与光合特性的影响 [J]. 应用生态学报, 2025, 36(2): 461-472.
[4]	张雅婷, 叶旺敏, 熊德成, 吴晨, 黄锦学, 陈仕东, 杨智杰. 杉木幼树光合特性与生长的季节变化及其对土壤增温的响应 [J]. 应用生态学报, 2024, 35(1): 195-202.
[5]	甘林, 代玉立, 杨秀娟, 杜宜新, 石妞妞, 阮宏椿, 陈福如. 香蕉抗(感)病品种根系分泌物对枯萎病菌和枯草芽孢杆菌的生物效应 [J]. 应用生态学报, 2020, 31(7): 2279-2286.
[6]	刘珊珊, 夏萌, 胡夏茹, 王云舟, 李春雨, 陶成圆, 沈宗专, 张楠, 李荣, 沈其荣. 石灰碳铵熏蒸联合生物有机肥对香蕉枯萎病和细菌群落的影响 [J]. 应用生态学报, 2020, 31(12): 4189-4196.
[7]	王秀媛, 马卉, 高宏云, 李楠楠, 李军宏, 夏军, 罗宏海. 新疆北部棉花冠层结构特征对滴灌定额的响应 [J]. 应用生态学报, 2019, 30(12): 4169-4176.
[8]	姜恒, 邹定辉, 娄文勇. 无机碳供应与光照条件对坛紫菜光合功能的影响 [J]. 应用生态学报, 2018, 29(2): 515-521.
[9]	徐江兵, 王艳玲, 罗小三, 冯有智. 纳米Fe₃O₄对生菜生长及土壤细菌群落结构的影响 [J]. 应用生态学报, 2017, 28(9): 3003-3010.
[10]	汪旭明, 陈媛媛, 王效科. 人工覆盖地表对北京典型绿化树光合特性的影响 [J]. 应用生态学报, 2017, 28(8): 2423-2430.
[11]	刘强,李凤日,彭娓. 基于离体测量估计长白落叶松原位最大净光合速率的方法 [J]. 应用生态学报, 2017, 28(10): 3208-3216.
[12]	刘强, 李凤日, 谢龙飞. 人工长白落叶松冠层光合作用-光响应曲线最优模型 [J]. 应用生态学报, 2016, 27(8): 2420-2428.
[13]	毕焕改, 董绪兵, 刘培培, 李清明, 艾希珍. CsRCA超表达对高温胁迫下黄瓜幼苗光合作用的影响 [J]. 应用生态学报, 2016, 27(7): 2308-2314.
[14]	黄明霞, 王靖, 唐建昭, 于强, 张君, 薛庆禹, 常清, 谈美秀. 气孔导度模型在北方农牧交错带的适用性评价——以马铃薯和油葵为例 [J]. 应用生态学报, 2016, 27(11): 3585-3592.
[15]	孙少波1,2,杜华强1,2*,李平衡1,2,周国模1,2,徐小军1,2,高国龙1,2,李雪建1,2. 基于小波变换的毛竹叶片净光合速率高光谱遥感反演 [J]. 应用生态学报, 2016, 27(1): 49-58.