doi:

DOI: 10.3724/SP.J.1011.2013.00966

Chinese Journal of Eco-Agriculture (中国生态农业学报) 2013/21:8 PP.966-972

Response of stomatal conductance to light in tobacco plants


Abstract:
Stomata regulates key plant processes, inluding CO2 assimilation and water use. Although stomatal conductance models evaluate stomatal regulation by plant leaves, model fits have been often different from research and environmental factors. To compare the applicability of stomatal conductance models in tobacco plants, light-response curves of stomatal conductance were measured in this study. The field study was conducted under controlled CO2 concentration and temperature using the Li-6400 photosynthesis determination system. CO2 concentration was maintained at 390 μmol•mol-1 under different temperatures of 20 ℃, 25 ℃, 30 ℃ and 35 ℃. Stomatal conductance of tobacco across the temperature treatments were fitted with the Ball-Berry model (BB model) and subsequent refinements made by Leuning correction model (BBL model), as well as a mechanism model deduced by Ye Zipiao and Yu Qiang (BBY model). The fitting effects eventually compared. The stomatal conductance model and the emendatory light response model of net photosynthesis were coupled (coupling model) to study the light response characteristics of tobacco stomatal conductance. The results were compared with that from Jarvis model. The fitting results showed that compared with the BB and BBL models, the BBY model better described the relationship between stomatal conductance and net photosynthesis of tobacco across the temperature treatments. Both the coupling and Jarvis models well fitted the response of stomatal conductance to light. However, the fitting effects of the coupling model were better, which directly estimated the maximum stomatal conductance along with the corresponding saturation light intensity. Also the coupling model could be used to study the extent of synchronization of maximum stomatal conductance and net photosynthetic rate. The study showed no synchronization of maximum stomatal conductance and maximum net photosynthetic rate of tobacco across the temperature treatments. At 20 ℃, tobacco stomatal conductance reached the maximum value earlier than net photosynthetic rate. At other temperature treatments, however, tobacco stomatal conductance reached the maximum value later than net photosynthetic rate.

Key words:Tobacco, Stomatal conductance, Stomatal conductance model, Light response

ReleaseDate:2014-07-21 16:49:34



[1] Farquhar G D, Sharkey T D. Stomatal conductance and photosynthesis[J]. Annual Review of Plant Physiology, 1982, 33(1): 317–345

[2] Buckley T N. The role of stomatal acclimation in modelling tree adaptation to high CO2[J]. Journal of Experimental Botany, 2008, 59: 1951–1961

[3] Jones H G. Stomatal control of photosynthesis and transpiration[J]. Journal of Experimental Botany, 1998, 49(Special Issue): 387–398

[4] Warren C R, Dreyer E. Temperature response of photosynthesis and internal conductance to CO2: Results from two independent approaches[J]. Journal of Experimental Botany, 2006, 57(12): 3057–3067

[5] 石培华, 冷石林. 植物气孔导度与表面温度的环境响应模型研究综述[J]. 水土保持研究, 1995, 2(1): 23–26, 40Shi P H, Leng S L. A summarize on environment-responding models of stomatal resistance and surface temperature of plant[J]. Research of Soil and Water Conservation, 1995, 2(1): 23–26, 40

[6] 牛海山, 旭日, 张志诚, 等. 羊草气孔导度的Jarvis-类模型[J]. 生态学杂志, 2005, 24(11): 1287–1290Niu H S, Xu R, Zhang Z C, et al. A Jarvis stomatal conductance model under considering soil moisture condition[J]. Chinese Journal of Ecology, 2005, 24(11): 1287–1290

[7] 王玉辉, 何兴元, 周广胜. 羊草叶片气孔导度特征及数值模拟[J]. 应用生态学报, 2001, 12(4): 517–521Wang Y H, He X Y, Zhou G S. Characteristics and quantitative simulation of stomatal conductance of Aneurolepidium chinense[J]. Chinese Journal of Applied Ecology, 2001, 12(4): 517–521

[8] Lombardozzi D, Sparks J P, Bonan G, et al. Ozone exposure causes a decoupling of conductance and photosynthesis: implications for the Ball-Berry stomatal conductance model[J]. Oecologia, 2012, 169(3): 651–659

[9] Tuzet A, Perrier A, Leuning R. A coupled model of stomatal conductance, photosynthesis and transpiration[J]. Plant, Cell and Environment, 2003, 26(7): 1097–1116

[10] Ball J T. An analysis of stomatal conductance[D]. Stanford: Stanford University, 1988

[11] 叶子飘, 于强. 植物气孔导度的机理模型[J]. 植物生态学报, 2009, 33(4): 772–782Ye Z P, Yu Q. Mechanism model of stomatal conductance[J]. Chinese Journal of Plant Ecology, 2009, 33(4): 772–782

[12] 李永秀, 娄运生, 张富存. 冬小麦气孔导度模型的比较[J]. 中国农业气象, 2011, 32(1): 106–110Li Y X, Lou Y S, Zhang F C. Comparison of stomatal conductance models for winter wheat[J]. Chinese Journal of Agrometeorology, 2011, 32(1): 106–110

[13] 王治海, 刘建栋, 刘玲, 等. 几种气孔导度模型在华北地区适应性研究[J]. 中国农业气象, 2012, 33(3): 412–416Wang Z H, Liu J D, Liu L, et al. Research on the applicability of several stomatal conductance models on the North China Plain[J]. Chinese Journal of Agrometeorology, 2012, 33(3): 412–416

[14] 齐华, 于贵瑞, 刘允芳, 等. 柑橘叶片气孔导度的环境响应模型研究[J]. 中国生态农业学报, 2004, 12(4): 43–48Qi H, Yu G R, Liu Y F, et al. Study of Jarvis model on stomatal conductance of mandarin leaf[J]. Chinese Journal of Eco-Agriculture, 2004, 12(4): 43–48

[15] 吴大千, 徐飞, 郭卫华, 等. 中国北方城市常见绿化植物夏季气孔导度影响因素及模型比较[J]. 生态学报, 2007, 27(10): 4141–4148Wu D Q, Xu F, Guo W H, et al. Impact factors and model comparison of summer stomatal conductance of six common greening species in cities of Northern China[J]. Acta Ecologica Sinica, 2007, 27(10): 4141–4148

[16] 石培华, 冷石林, 梅旭荣. 气孔导度、表面温度的环境响应模型研究[J]. 中国农业气象, 1995, 16(5): 51–54Shi P H, Leng S L, Mei X R. Research on environment-responding models of stomatal conductance and surface temperature[J]. Chinese Journal of Agrometeorology, 1995, 16(5): 51–54

[17] 钟楚, 王毅, 陈宗瑜, 等. 烟草形态和光合生理对减弱UV-B辐射的响应[J]. 应用生态学报, 2010, 21(9): 2358–2366Zhong C, Wang Y, Chen Z Y, et al. Responses of Nicotiana tabacum morphology and photosynthetic physiology to reduced ultraviolet-B radiation[J]. Chinese Journal of Applied Ecology, 2010, 21(9): 2358–2366

[18] Leuning R, Kelliher F M, De Pury D G G, et al. Leaf nitrogen, photosynthesis, conductance and transpiration: scaling from leaves to canopies[J]. Plant, Cell and Environment, 1995, 18(10): 1183–1200

[19] Jarvis P G. The interpretation of the variations in leaf water potential and stomatal conductance found in canopies in the field[J]. Philo, Trans Roy Soc London B, 1976, 273(927): 593–610

[20] 彭世彰, 徐俊增, 丁加丽, 等. 节水灌溉条件下水稻叶气温差变化规律与水分亏缺诊断试验研究[J]. 水利学报, 2006, 37(12): 1503–1508Peng S Z, Xu J Z, Ding J L, et al. Leaf-air temperature difference of rice and water deficit diagnose under water saving irrigation[J]. Journal of Hydraulic Engineering, 2006, 37(12): 1503–1508

[21] Ye Z P. A new model for relationship between irradiance and the rate of photosynthesis in Oryza sativa[J]. Photosynthetica, 2007, 45(4): 637–640

[22] 钟楚, 朱勇. 几种光合作用光响应模型对烟草的适用性分析[J]. 中国农业气象, 2013, 34(1): 74–80Zhong C, Zhu Y. Applicability analysis about different photosynthetic light-response models for tobacco[J]. Chinese Journal of Agrometeorology, 2013, 34(1): 74–80

[23] Ye Z P, Yu Q. A coupled model of stomatal conductance and photosynthesis for winter wheat[J]. Photosynthetica, 2008, 46(4): 637–640

[24] 邹薇, 刘铁梅, 姚娟, 等. 基于生理生态过程的大麦顶端发育和物候期模拟模型检验[J]. 生态学报, 2009, 29(3): 1309–1319Zou W, Liu T M, Yao J, et al. A process-based simulation model on apical and phenological stages in barley: model validation[J]. Acta Ecologica Sinica, 2009, 29(3): 1309–1319

[25] 钟楚, 张明达, 胡雪琼, 等. 温度变化对烟草光合作用光响应特征的影响[J]. 生态学杂志, 2012, 31(2): 337–341Zhong C, Zhang M D, Hu X Q, et al. Effects of temperature variation on the light-response characteristics of tobacco leaf photosynthesis[J]. Chinese Journal of Ecology, 2012, 31(2): 337–341

PDF