Temperature and CO2 responses of leaf and canopy photosynthesis:: A clarification using the non-rectangular hyperbola model of photosynthesis

被引:123
作者
Cannell, MGR [1 ]
Thornley, JHM [1 ]
机构
[1] Inst Terr Ecol, Penicuik EH26 0QB, Midlothian, Scotland
基金
英国自然环境研究理事会;
关键词
photosynthesis; leaf; canopy; carbon dioxide; temperature; irradiance; model;
D O I
10.1006/anbo.1998.0777
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The responses of C-3 leaf and canopy gross photosynthesis to increasing temperature and CO2 can be readily understood in terms of the temperature and CO2 dependencies of quantum yield (phi(i)) and light-saturated photosynthesis (A(sat)) the two principal parameters in the non-rectangular hyperbola model of photosynthesis. Here, we define these dependencies within the mid-range for C-3 herbaceous plants, based on a review of the literature. Then, using illustrative parameter values, we deduce leaf and canopy photosynthesis responses to temperature and CO, in different environmental conditions (including shifts in the temperature optimum) from the assumed sensitivities of phi(i) and A(sat) to temperature and CO2. We show that: (1) elevated CO2 increases photosynthesis more at warm than at cool temperatures because of the large combined CO2-responses of both phi(i) and A(sat) at high temperatures; (2) elevated CO2 may substantially raise the temperature optimum of photosynthesis at warm temperatures, but not at the cool temperatures which prevail for much of the time at temperate and high latitudes; (3) large upward shifts in the temperature optimum of canopy gross photosynthesis occur at high irradiances, following the response of A(sat), and are probably important for global carbon fixation; (4) canopy gross photosynthesis shows smaller CO2-temperature interactions than leaf photosynthesis, because leaves in canopies receive lower average irradiances and sep more strongly follow the dependencies of phi(i); and (5) at very low irradiances, the temperature optimum of photosynthesis is low and is raised very little by increasing CO2 .(C) 1998 Annals of Botany Company.
引用
收藏
页码:883 / 892
页数:10
相关论文
共 55 条
[1]  
Acock B., 1991, CROP SCI SOC AM SPEC, V19, P41, DOI DOI 10.2135/CSSASPECPUB19.C3
[2]  
[Anonymous], BIOTIC FEEDBACKS GLO
[3]  
Baker NR, 1986, PHOTOSYNTHESIS CONTR
[4]  
Battaglia M, 1996, TREE PHYSIOL, V16, P81
[5]   PHOTOSYNTHETIC RESPONSE AND ADAPTATION TO TEMPERATURE IN HIGHER-PLANTS [J].
BERRY, J ;
BJORKMAN, O .
ANNUAL REVIEW OF PLANT PHYSIOLOGY AND PLANT MOLECULAR BIOLOGY, 1980, 31 :491-543
[6]   PHOTON YIELD OF O-2 EVOLUTION AND CHLOROPHYLL FLUORESCENCE CHARACTERISTICS AT 77-K AMONG VASCULAR PLANTS OF DIVERSE ORIGINS [J].
BJORKMAN, O ;
DEMMIG, B .
PLANTA, 1987, 170 (04) :489-504
[7]   Optima and limiting factors. With two diagrams in the text [J].
Blackman, F. F. .
ANNALS OF BOTANY, 1905, 19 (73-76) :281-296
[8]  
Boote K.J., 1991, MODELING CROP PHOTOS, P109
[9]   HOW VARIOUS FACTORS INFLUENCE THE CO2/O2 SPECIFICITY OF RIBULOSE-1,5-BISPHOSPHATE CARBOXYLASE OXYGENASE [J].
CHEN, ZX ;
SPREITZER, RJ .
PHOTOSYNTHESIS RESEARCH, 1992, 31 (02) :157-164
[10]   THE RELATIONSHIP BETWEEN THE RUBISCO REACTION-MECHANISM AND MODELS OF PHOTOSYNTHESIS [J].
COLLATZ, GJ ;
BERRY, JA ;
FARQUHAR, GD ;
PIERCE, J .
PLANT CELL AND ENVIRONMENT, 1990, 13 (03) :219-225