Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Surprising lack of sensitivity of biochemical limitation of photosynthesis of nine tree species to open‐air experimental warming and reduced rainfall in a southern boreal forest

Journal Article · · Global Change Biology
DOI:https://doi.org/10.1111/gcb.14805· OSTI ID:1562576
 [1];  [1];  [2];  [1];  [3]
  1. Department of Forest Resources University of Minnesota St. Paul MN USA
  2. Department of Biology, Behavioral Neuroscience, and Health Sciences Rider University Lawrenceville NJ USA
  3. Department of Forest Resources University of Minnesota St. Paul MN USA, Hawkesbury Institute for the Environment Western Sydney University Penrith NSW Australia

Abstract

Photosynthetic biochemical limitation parameters (i.e., V cmax , J max and J max : V cmax ratio) are sensitive to temperature and water availability, but whether these parameters in cold climate species at biome ecotones are positively or negatively influenced by projected changes in global temperature and water availability remains uncertain. Prior exploration of this question has largely involved greenhouse based short‐term manipulative studies with mixed results in terms of direction and magnitude of responses. To address this question in a more realistic context, we examined the effects of increased temperature and rainfall reduction on the biochemical limitations of photosynthesis using a long‐term chamber‐less manipulative experiment located in northern Minnesota, USA. Nine tree species from the boreal‐temperate ecotone were grown in natural neighborhoods under ambient and elevated (+3.4°C) growing season temperatures and ambient or reduced (≈40% of rainfall removed) summer rainfall. Apparent rubisco carboxylation and RuBP regeneration standardized to 25°C ( V cmax25°C and J max25°C , respectively) were estimated based on A C i curves measured in situ over three growing seasons. Our primary objective was to test whether species would downregulate V cmax25°C and J max25°C in response to warming and reduced rainfall, with such responses expected to be greatest in species with the coldest and most humid native ranges, respectively. These hypotheses were not supported, as there were no overall main treatment effects on V cmax25°C or J max25°C ( p  > .14). However, J max : V cmax ratio decreased significantly with warming ( p  = .0178), whereas interactions between warming and rainfall reduction on the J max25°C to V cmax25°C ratio were not significant. The insensitivity of photosynthetic parameters to warming contrasts with many prior studies done under larger temperature differentials and often fixed daytime temperatures. In sum, plants growing in relatively realistic conditions under naturally varying temperatures and soil moisture levels were remarkably insensitive in terms of their J max25°C and V cmax25°C when grown at elevated temperatures, reduced rainfall, or both combined.

Sponsoring Organization:
USDOE
Grant/Contract Number:
FG02-07ER64456
OSTI ID:
1562576
Alternate ID(s):
OSTI ID: 1800545
Journal Information:
Global Change Biology, Journal Name: Global Change Biology Journal Issue: 2 Vol. 26; ISSN 1354-1013
Publisher:
Wiley-BlackwellCopyright Statement
Country of Publication:
United Kingdom
Language:
English

References (69)

Experimental warming advances phenology of groundlayer plants at the boreal-temperate forest ecotone journal May 2018
Modelling Optimal Temperature Acclimation of the Photosynthetic Apparatus in C3Plants with Respect to Nitrogen Use journal December 1997
Modelling of Photosynthetic Response to Environmental Conditions book January 1982
A biochemical model of photosynthetic CO2 assimilation in leaves of C3 species journal June 1980
Photosynthetic characteristics in canopies of Quercus rubra, Quercus prinus and Acer rubrum differ in response to soil water availability journal February 2002
Water and salinity stress in grapevines: early and late changes in transcript and metabolite profiles journal November 2006
Acclimation of photosynthesis in a boreal grass (Phalaris arundinacea L.) under different temperature, CO2, and soil water regimes journal March 2012
Thermal acclimation of photosynthesis: on the importance of adjusting our definitions and accounting for thermal acclimation of respiration journal June 2013
Photosynthetic parameters from two contrasting woody vegetation types in West Africa journal July 2007
Climatic warming changes plant photosynthesis and its temperature dependence in a temperate steppe of northern China journal May 2008
Interactive effects of drought, elevated CO2 and warming on photosynthetic capacity and photosystem performance in temperate heath plants journal September 2011
Acclimation of photosynthesis to temperature in eight cool and warm climate herbaceous C3 species: Temperature dependence of parameters of a biochemical photosynthesis model journal January 2000
Does the direct effect of atmospheric CO2 concentration on leaf respiration vary with temperature? Responses in two species of Plantago that differ in relative growth rate journal January 2002
Boreal and temperate trees show strong acclimation of respiration to warming journal March 2016
Geographic range predicts photosynthetic and growth response to warming in co-occurring tree species journal January 2015
Effects of climate warming on photosynthesis in boreal tree species depend on soil moisture journal October 2018
In vivo temperature response functions of parameters required to model RuBP-limited photosynthesis journal September 2003
Balancing carboxylation and regeneration of ribulose-1,5- bisphosphate in leaf photosynthesis: temperature acclimation of an evergreen tree, Quercus myrsinaefolia journal July 1999
Temperature response of parameters of a biochemically based model of photosynthesis. II. A review of experimental data journal September 2002
Diffusive and Metabolic Limitations to Photosynthesis under Drought and Salinity in C 3 Plants journal May 2004
Biochemical Models of Leaf Photosynthesis book January 2000
The balance between RuBP carboxylation and RuBP regeneration: a mechanism underlying the interspecific variation in acclimation of photosynthesis to seasonal change in temperature journal January 2005
Photosynthetic sensitivity to drought varies among populations of Quercus ilex along a rainfall gradient journal January 2012
Limitations to leaf photosynthesis in field-grown grapevine under drought — metabolic and modelling approaches journal January 2002
Effects of drought on photosynthesis in grapevines under field conditions: an evaluation of stomatal and mesophyll limitations journal January 2002
Determinants of Plant Distribution: Evidence from Pine Invasions journal May 1991
Drought-inhibition of Photosynthesis in C3 Plants: Stomatal and Non-stomatal Limitations Revisited journal February 2002
Regulation of Photosynthesis of C3 Plants in Response to Progressive Drought: Stomatal Conductance as a Reference Parameter journal June 2002
Long-term water stress leads to acclimation of drought sensitivity of photosynthetic capacity in xeric but not riparian Eucalyptus species journal October 2015
Leaf photosynthesis and simulated carbon budget of Gentiana straminea from a decade-long warming experiment journal November 2009
Temperature acclimation of photosynthesis: mechanisms involved in the changes in temperature dependence of photosynthetic rate journal December 2005
The Mediterranean evergreen Quercus ilex and the semi-deciduous Cistus albidus differ in their leaf gas exchange regulation and acclimation to repeated drought and re-watering cycles journal August 2011
Physiological basis of genetic variation in leaf photosynthesis among rice (Oryza sativa L.) introgression lines under drought and well-watered conditions journal August 2012
Balance between carbon gain and loss under long-term drought: impacts on foliar respiration and photosynthesis in Quercus ilex L journal November 2015
Temperature response of leaf photosynthetic capacity in seedlings from seven temperate tree species journal March 2001
Seasonal trends in photosynthetic parameters and stomatal conductance of blue oak (Quercus douglasii) under prolonged summer drought and high temperature journal September 2003
Stomatal limitation to CO2 assimilation and down-regulation of photosynthesis in Quercus ilex resprouts in response to slowly imposed drought journal July 2004
Contrasting leaf trait scaling relationships in tropical and temperate wet forest species journal February 2013
Acclimation of photosynthetic temperature optima of temperate and boreal tree species in response to experimental forest warming journal December 2014
Design and performance of combined infrared canopy and belowground warming in the B4WarmED (Boreal Forest Warming at an Ecotone in Danger) experiment journal March 2015
Is it getting hot in here? Adjustment of hydraulic parameters in six boreal and temperate tree species after 5 years of warming journal June 2016
Strong thermal acclimation of photosynthesis in tropical and temperate wet-forest tree species: the importance of altered Rubisco content journal January 2017
Reconciling the optimal and empirical approaches to modelling stomatal conductance: RECONCILING OPTIMAL AND EMPIRICAL STOMATAL MODELS journal January 2011
Improved temperature response functions for models of Rubisco-limited photosynthesis journal February 2001
Temperature acclimation of photosynthesis in spinach leaves: analyses of photosynthetic components and temperature dependencies of photosynthetic partial reactions journal April 2005
The temperature response of C 3 and C 4 photosynthesis journal September 2007
Temperature acclimation in a biochemical model of photosynthesis: a reanalysis of data from 36 species journal September 2007
Fitting photosynthetic carbon dioxide response curves for C 3 leaves journal September 2007
Do photosynthetic limitations of evergreen Quercus ilex leaves change with long-term increased drought severity? journal March 2010
The response of nodulated alfalfa to water supply, temperature and elevated CO2: photosynthetic downregulation journal March 2005
Diffusion limitations and metabolic factors associated with inhibition and recovery of photosynthesis from drought stress in a C 3 perennial grass species journal May 2010
Intraspecific variation in temperature dependence of gas exchange characteristics among Plantago asiatica ecotypes from different temperature regimes journal October 2007
Understanding down-regulation of photosynthesis under water stress: future prospects and searching for physiological tools for irrigation management journal June 2004
Drought × CO 2 interactions in trees: a test of the low-intercellular CO 2 concentration ( C i ) mechanism journal November 2015
A test of the ‘one-point method’ for estimating maximum carboxylation capacity from field-measured, light-saturated photosynthesis journal December 2015
Convergent acclimation of leaf photosynthesis and respiration to prevailing ambient temperatures under current and warmer climates in Eucalyptus tereticornis journal June 2016
Mesophyll conductance does not contribute to greater photosynthetic rate per unit nitrogen in temperate compared with tropical evergreen wet-forest tree leaves journal February 2018
Acclimation and adaptation components of the temperature dependence of plant photosynthesis at the global scale journal February 2019
Implications of the mesophyll conductance to CO 2 for photosynthesis and water-use efficiency during long-term water stress and recovery in two contrasting E ucalyptus species : Long-term water stress on mesophyll conductance journal May 2014
Physiological acclimation dampens initial effects of elevated temperature and atmospheric CO 2 concentration in mature boreal Norway spruce journal December 2017
Range Shifts and Adaptive Responses to Quaternary Climate Change journal April 2001
Photosynthetic Response and Adaptation to Temperature in Higher Plants journal June 1980
Stomatal Conductance and Photosynthesis journal June 1982
Plantecophys - An R Package for Analysing and Modelling Leaf Gas Exchange Data journal November 2015
Tolerance to Shade, Drought, and Waterlogging of Temperate Northern Hemisphere Trees and Shrubs journal November 2006
Effects of Elevated CO on Physiological Responses of Tall Fescue to Elevated Temperature, Drought Stress, and the Combined Stresses journal January 2012
Physiological responses of Eucalyptus nitens × nitens under experimentally imposed water stress journal June 2010
Acclimation of Biochemical and Diffusive Components of Photosynthesis in Rice, Wheat, and Maize to Heat and Water Deficit: Implications for Modeling Photosynthesis journal November 2016
Rubisco and Rubisco Activase Play an Important Role in the Biochemical Limitations of Photosynthesis in Rice, Wheat, and Maize under High Temperature and Water Deficit journal April 2017

Similar Records

Short- and long-term responses of photosynthetic capacity to temperature in four boreal tree species in a free-air warming and rainfall manipulation experiment
Journal Article · Sat Aug 29 00:00:00 EDT 2020 · Tree Physiology (Online) · OSTI ID:1849830

Photosynthetic capacity in middle-aged larch and spruce acclimates independently to experimental warming and elevated CO2
Journal Article · Mon Aug 05 00:00:00 EDT 2024 · Plant, Cell and Environment · OSTI ID:2477521

Limited thermal acclimation of photosynthesis in tropical montane tree species
Journal Article · Fri Jul 16 00:00:00 EDT 2021 · Global Change Biology · OSTI ID:1808602

Related Subjects