Acclimation of respiratory O{sub 2} uptake in green tissues of field-grown native species after long-term exposure to elevated atmospheric CO{sub 2}

Title: Acclimation of respiratory O{sub 2} uptake in green tissues of field-grown native species after long-term exposure to elevated atmospheric CO{sub 2}

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Abstract

C{sub 3} and C{sub 4} plants were grown in open-top chambers in the field at two CO{sub 2} concentrations, normal ambient (ambient) and normal ambient + 340 {mu}L L{sup {minus}1} (elevated). Dark oxygen uptake was measured in leaves and stems using a liquid-phase Clark-type oxygen electrode. High CO{sub 2} treatment decreased dark oxygen uptake in stems of Scirpus olneyi (C{sub 3}) and leaves of Lindera benzoin (C{sub 3}) expressed on either a dry weight or area basis. Respiration of Spartina patens (C{sub 4}) leaves was unaffected by CO{sub 2} treatment. Leaf dry weight per unit area was unchanged by CO{sub 2}, but respiration per unit of carbon or per unit of nitrogen was decreased in the C{sub 3} species grown at high CO{sub 2}. The component of respiration in stems of S. olneyi and leaves of L. benzoin primarily affected by long-term exposure to the elevated CO{sub 2} treatment was the activity of the cytochrome pathway. Elevated CO{sub 2} had no effect on activity and capacity of the alternative pathway in S. olneyi. The cytochrome c oxidase activity, assayed in a cell-free extract, was strongly decreased by growth at high CO{sub 2} in stems of S. olneyi but it wasmore »« less

Authors:

Azcon-Bieto, J; Gonzalez-Meler, M A ^[1]; Doherty, W; Drake, B G ^[2]

Universitat de Barcelona (Spain)
Smithsonian Environmental Research Center, Edgewater, MD (United States)

Publication Date:: 1994-11-01

OSTI Identifier:: 35736

Resource Type:: Journal Article

Journal Name:: Plant Physiology (Bethesda)

Additional Journal Information:: Journal Volume: 106; Journal Issue: 3; Other Information: PBD: Nov 1994

Country of Publication:: United States

Language:: English

Subject:: 56 BIOLOGY AND MEDICINE, APPLIED STUDIES; CARBON DIOXIDE; ECOLOGICAL CONCENTRATION; BIOLOGICAL EFFECTS; PLANTS; BIOLOGICAL ADAPTATION; RESPIRATION; C4 SPECIES

Citation Formats


                    Azcon-Bieto, J, Gonzalez-Meler, M A, Doherty, W, and Drake, B G. Acclimation of respiratory O{sub 2} uptake in green tissues of field-grown native species after long-term exposure to elevated atmospheric CO{sub 2}.  United States: N. p., 1994. 
        Web.

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                    Azcon-Bieto, J, Gonzalez-Meler, M A, Doherty, W, & Drake, B G. Acclimation of respiratory O{sub 2} uptake in green tissues of field-grown native species after long-term exposure to elevated atmospheric CO{sub 2}.  United States.

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                    Azcon-Bieto, J, Gonzalez-Meler, M A, Doherty, W, and Drake, B G. Tue .  
        "Acclimation of respiratory O{sub 2} uptake in green tissues of field-grown native species after long-term exposure to elevated atmospheric CO{sub 2}".  United States.

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@article{osti_35736,

  title        = {Acclimation of respiratory O{sub 2} uptake in green tissues of field-grown native species after long-term exposure to elevated atmospheric CO{sub 2}},

  author       = {Azcon-Bieto, J and Gonzalez-Meler, M A and Doherty, W and Drake, B G},

  abstractNote = {C{sub 3} and C{sub 4} plants were grown in open-top chambers in the field at two CO{sub 2} concentrations, normal ambient (ambient) and normal ambient + 340 {mu}L L{sup {minus}1} (elevated). Dark oxygen uptake was measured in leaves and stems using a liquid-phase Clark-type oxygen electrode. High CO{sub 2} treatment decreased dark oxygen uptake in stems of Scirpus olneyi (C{sub 3}) and leaves of Lindera benzoin (C{sub 3}) expressed on either a dry weight or area basis. Respiration of Spartina patens (C{sub 4}) leaves was unaffected by CO{sub 2} treatment. Leaf dry weight per unit area was unchanged by CO{sub 2}, but respiration per unit of carbon or per unit of nitrogen was decreased in the C{sub 3} species grown at high CO{sub 2}. The component of respiration in stems of S. olneyi and leaves of L. benzoin primarily affected by long-term exposure to the elevated CO{sub 2} treatment was the activity of the cytochrome pathway. Elevated CO{sub 2} had no effect on activity and capacity of the alternative pathway in S. olneyi. The cytochrome c oxidase activity, assayed in a cell-free extract, was strongly decreased by growth at high CO{sub 2} in stems of S. olneyi but it was unaffected in S. patens leaves. The activity of cytochrome c oxidase and complex III extracted from mature leaves of L. benzoin was also decreased after one growing season of plant exposure to elevated CO{sub 2} concentration. These results show that in some C{sub 3} species respiration will be reduced when plants are grown in elevated atmospheric CO{sub 2}. The possible physiological causes and implications of these effects are discussed. 34 refs., 1 fig., 6 tabs.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/35736},
  journal      = {Plant Physiology (Bethesda)},
number       = 3,

  volume       = 106,

  place        = {United States},

  year         = {1994},

  month        = {11}

}

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