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Gas exchange and photosynthetic performance of the tropical tree Acacia nigrescens when grown in different CO2 concentrations

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Gas exchange and photosynthetic performance of the tropical tree Acacia nigrescens when grown in different CO2 concentrations. / Possell, Malcolm; Hewitt, C. N.
In: Planta, Vol. 229, No. 4, 2009, p. 837-846.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Possell, M & Hewitt, CN 2009, 'Gas exchange and photosynthetic performance of the tropical tree Acacia nigrescens when grown in different CO2 concentrations', Planta, vol. 229, no. 4, pp. 837-846. https://doi.org/10.1007/s00425-008-0883-1

APA

Possell, M., & Hewitt, C. N. (2009). Gas exchange and photosynthetic performance of the tropical tree Acacia nigrescens when grown in different CO2 concentrations. Planta, 229(4), 837-846. https://doi.org/10.1007/s00425-008-0883-1

Vancouver

Possell M, Hewitt CN. Gas exchange and photosynthetic performance of the tropical tree Acacia nigrescens when grown in different CO2 concentrations. Planta. 2009;229(4):837-846. doi: 10.1007/s00425-008-0883-1

Author

Possell, Malcolm ; Hewitt, C. N. / Gas exchange and photosynthetic performance of the tropical tree Acacia nigrescens when grown in different CO2 concentrations. In: Planta. 2009 ; Vol. 229, No. 4. pp. 837-846.

Bibtex

@article{5eae90a4a3ba44f8b1414f4fce765489,
title = "Gas exchange and photosynthetic performance of the tropical tree Acacia nigrescens when grown in different CO2 concentrations",
abstract = "The photosynthetic responses of the tropical tree species Acacia nigrescens Oliv. grown at different atmospheric CO2 concentrations-from sub-ambient to super-ambient-have been studied. Light-saturated rates of net photosynthesis (A (sat)) in A. nigrescens, measured after 120 days exposure, increased significantly from sub-ambient (196 mu L L-1) to current ambient (386 mu L L-1) CO2 growth conditions but did not increase any further as [CO2] became super-ambient (597 mu L L-1). Examination of photosynthetic CO2 response curves, leaf nitrogen content, and leaf thickness showed that this acclimation was most likely caused by reduction in Rubisco activity and a shift towards ribulose-1,5-bisphosphate regeneration-limited photosynthesis, but not a consequence of changes in mesophyll conductance. Also, measurements of the maximum efficiency of PSII and the carotenoid to chlorophyll ratio of leaves indicated that it was unlikely that the pattern of A (sat) seen was a consequence of growth [CO2] induced stress. Many of the photosynthetic responses examined were not linear with respect to the concentration of CO2 but could be explained by current models of photosynthesis.",
keywords = "Acacia, Elevated CO2, Nitrogen content, Photosynthesis, Sub-ambient CO2, Water-use efficiency, ATMOSPHERIC CARBON-DIOXIDE, LAST GLACIAL MAXIMUM, ELEVATED CO2, AMAZONIAN ECOSYSTEMS, CHLOROPHYLL FLUORESCENCE, MESOPHYLL CONDUCTANCE, STOMATAL CONDUCTANCE, ISOPRENE EMISSIONS, VASCULAR PLANTS, INCREASING CO2",
author = "Malcolm Possell and Hewitt, {C. N.}",
year = "2009",
doi = "10.1007/s00425-008-0883-1",
language = "English",
volume = "229",
pages = "837--846",
journal = "Planta",
issn = "1432-2048",
publisher = "Springer",
number = "4",

}

RIS

TY - JOUR

T1 - Gas exchange and photosynthetic performance of the tropical tree Acacia nigrescens when grown in different CO2 concentrations

AU - Possell, Malcolm

AU - Hewitt, C. N.

PY - 2009

Y1 - 2009

N2 - The photosynthetic responses of the tropical tree species Acacia nigrescens Oliv. grown at different atmospheric CO2 concentrations-from sub-ambient to super-ambient-have been studied. Light-saturated rates of net photosynthesis (A (sat)) in A. nigrescens, measured after 120 days exposure, increased significantly from sub-ambient (196 mu L L-1) to current ambient (386 mu L L-1) CO2 growth conditions but did not increase any further as [CO2] became super-ambient (597 mu L L-1). Examination of photosynthetic CO2 response curves, leaf nitrogen content, and leaf thickness showed that this acclimation was most likely caused by reduction in Rubisco activity and a shift towards ribulose-1,5-bisphosphate regeneration-limited photosynthesis, but not a consequence of changes in mesophyll conductance. Also, measurements of the maximum efficiency of PSII and the carotenoid to chlorophyll ratio of leaves indicated that it was unlikely that the pattern of A (sat) seen was a consequence of growth [CO2] induced stress. Many of the photosynthetic responses examined were not linear with respect to the concentration of CO2 but could be explained by current models of photosynthesis.

AB - The photosynthetic responses of the tropical tree species Acacia nigrescens Oliv. grown at different atmospheric CO2 concentrations-from sub-ambient to super-ambient-have been studied. Light-saturated rates of net photosynthesis (A (sat)) in A. nigrescens, measured after 120 days exposure, increased significantly from sub-ambient (196 mu L L-1) to current ambient (386 mu L L-1) CO2 growth conditions but did not increase any further as [CO2] became super-ambient (597 mu L L-1). Examination of photosynthetic CO2 response curves, leaf nitrogen content, and leaf thickness showed that this acclimation was most likely caused by reduction in Rubisco activity and a shift towards ribulose-1,5-bisphosphate regeneration-limited photosynthesis, but not a consequence of changes in mesophyll conductance. Also, measurements of the maximum efficiency of PSII and the carotenoid to chlorophyll ratio of leaves indicated that it was unlikely that the pattern of A (sat) seen was a consequence of growth [CO2] induced stress. Many of the photosynthetic responses examined were not linear with respect to the concentration of CO2 but could be explained by current models of photosynthesis.

KW - Acacia

KW - Elevated CO2

KW - Nitrogen content

KW - Photosynthesis

KW - Sub-ambient CO2

KW - Water-use efficiency

KW - ATMOSPHERIC CARBON-DIOXIDE

KW - LAST GLACIAL MAXIMUM

KW - ELEVATED CO2

KW - AMAZONIAN ECOSYSTEMS

KW - CHLOROPHYLL FLUORESCENCE

KW - MESOPHYLL CONDUCTANCE

KW - STOMATAL CONDUCTANCE

KW - ISOPRENE EMISSIONS

KW - VASCULAR PLANTS

KW - INCREASING CO2

U2 - 10.1007/s00425-008-0883-1

DO - 10.1007/s00425-008-0883-1

M3 - Journal article

VL - 229

SP - 837

EP - 846

JO - Planta

JF - Planta

SN - 1432-2048

IS - 4

ER -