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. 1985 Jun;78(2):246–249. doi: 10.1104/pp.78.2.246

Physiological and Isotopic Aspects of Photosynthesis in Peperomia1

Irwin P Ting 1,2,3, Loretta Bates 1,2,3, Leonel O'Reilly Sternberg 1,2,3, Michael J Deniro 1,2,3
PMCID: PMC1064713  PMID: 16664224

Abstract

Physiological and isotopic aspects of several Peperomia species were investigated. All but one species had C3-like stomatal behavior, in that stomata were open during the day and closed during the night. In these species, most atmospheric CO2 uptake occurred during the day. Concurrent with this stomatal behavior, there were Crassulacean acid metabolism-like acid fluctuations in most species. Carbon and hydrogen isotope ratios of cellulose nitrate from Peperomia reflect their physiological behavior. The δ13C values of cellulose nitrate from Peperomia species were similar to values observed in C3 plants and consistent with the daytime uptake of exogeneous CO2 via the C3 photosynthetic pathway. The δD values of cellulose nitrate from Peperomia species approach those of Crassulacean acid metabolism plants. These elevated δD values are caused by fractionations occurring during biochemical reactions and not as a consequence of water relations.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Cockburn W. Relationships between Stomatal Behavior and Internal Carbon Dioxide Concentration in Crassulacean Acid Metabolism Plants. Plant Physiol. 1979 Jun;63(6):1029–1032. doi: 10.1104/pp.63.6.1029. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Epstein S., Thompson P., Yapp C. J. Oxygen and hydrogen isotopic ratios in plant cellulose. Science. 1977 Dec 23;198(4323):1209–1215. doi: 10.1126/science.198.4323.1209. [DOI] [PubMed] [Google Scholar]
  3. Hanscom Z., Ting I. P. Responses of succulents to plant water stress. Plant Physiol. 1978 Mar;61(3):327–330. doi: 10.1104/pp.61.3.327. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Martin C. E., Zee A. K. C(3) Photosynthesis and Crassulacean Acid Metabolism in a Kansas Rock Outcrop Succulent, Talinum calycinum Engelm. (Portulacaceae). Plant Physiol. 1983 Nov;73(3):718–723. doi: 10.1104/pp.73.3.718. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. PONTICORVO L., RITTENBERG D. A method for the determination of the O18 concentration of the oxygen of organic compounds. Int J Appl Radiat Isot. 1956 Nov;1(3):208–214. doi: 10.1016/0020-708x(56)90008-4. [DOI] [PubMed] [Google Scholar]
  6. Rayder L., Ting I. P. Shifts in the Carbon Metabolism of Xerosicyos danguyi H. Humb. (Cucurbitaceae) Brought About by Water Stress : I. General Characteristics. Plant Physiol. 1983 Jul;72(3):606–610. doi: 10.1104/pp.72.3.606. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Rayder L., Ting I. P. Shifts in the Carbon Metabolism of Xerosicyos danguyi H. Humb. (Cucurbitaceae) Brought About by Water Stress : II. Enzymology. Plant Physiol. 1983 Jul;72(3):611–615. doi: 10.1104/pp.72.3.611. [DOI] [PMC free article] [PubMed] [Google Scholar]
  8. Sternberg L. O., Deniro M. J., Johnson H. B. Isotope ratios of cellulose from plants having different photosynthetic pathways. Plant Physiol. 1984 Mar;74(3):557–561. doi: 10.1104/pp.74.3.557. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Sternberg L. O., Deniro M. J., Ting I. P. Carbon, hydrogen, and oxygen isotope ratios of cellulose from plants having intermediary photosynthetic modes. Plant Physiol. 1984 Jan;74(1):104–107. doi: 10.1104/pp.74.1.104. [DOI] [PMC free article] [PubMed] [Google Scholar]
  10. Sternberg L., Deniro M. J. Isotopic Composition of Cellulose from C3, C4, and CAM Plants Growing Near One Another. Science. 1983 May 27;220(4600):947–949. doi: 10.1126/science.220.4600.947. [DOI] [PubMed] [Google Scholar]
  11. Szarek S. R., Johnson H. B., Ting I. P. Drought Adaptation in Opuntia basilaris: Significance of Recycling Carbon through Crassulacean Acid Metabolism. Plant Physiol. 1973 Dec;52(6):539–541. doi: 10.1104/pp.52.6.539. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Ting I. P., Sternberg L. O., Deniro M. J. Variable Photosynthetic Metabolism in Leaves and Stems of Cissus quadrangularis L. Plant Physiol. 1983 Mar;71(3):677–679. doi: 10.1104/pp.71.3.677. [DOI] [PMC free article] [PubMed] [Google Scholar]

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