Plant Physiol. Illumina
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

Plant Physiology 82:428-431 (1986)
© 1986 American Society of Plant Biologists

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via CrossRef
Right arrow Citing Articles via Web of Science (23)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Sternberg, L. D. S. L.
Right arrow Articles by Johnson, H. B.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Sternberg, L. D. S. L.
Right arrow Articles by Johnson, H. B.
Agricola
Right arrow Articles by Sternberg, L. D. S. L.
Right arrow Articles by Johnson, H. B.
Articles

Oxygen and Hydrogen Isotope Ratios of Water from Photosynthetic Tissues of CAM and C3 Plants 1

Leonel Da S. L. Sternberg2, Michael J. Deniro3 and Hyrum B. Johnson

Department of Earth and Space Sciences, University of California, Los Angeles, California 90024, United States Department of Agriculture, Agricultural Research Service, Grassland, Soil and Water Research Laboratory, Temple, Texas 76503

Water samples from photosynthetic tissues of C3 and Crassulacean acid metabolism (CAM) plants that grew together in the field were extracted and the stable oxygen and hydrogen isotope ratios determined. During the day, 18O/16O and deuterium/hydrogen (D/H) ratios of water from CAM plants were lower than those observed in water from C3 plants. The patterns of diurnal variation (or lack thereof) in isotope ratios of plant water are consistent with the gross anatomical and physiological characteristics of the plants studied here. Our observations support the previously advanced hypothesis that high D/H ratios in cellulose nitrate prepared from CAM plants relative to those for C3 plants are not caused by greater deuterium enrichment in the water in CAM plants, but rather by isotopic fractionations associated with different biochemical reactions in the two types of plants.

2 Present address: Department of Biology, University of Miami, Coral Gables, FL 33124.

3 Also in Archaeology Program.

1 Supported by National Science Foundation grant DMB 84-05003.




This article has been cited by other articles:


Home page
 PaleobiologyHome page
Herbivore paleodiet and paleoenvironmental changes in Chad during the Pliocene using stable isotope ratios of tooth enamel carbonate
Paleobiology, June 1, 2000; 26(2): 294 - 309.



HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
ASPB Publications PLANT PHYSIOLOGY® THE PLANT CELL
Copyright © 1986 by the American Society of Plant Biologists