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Plant Physiology 50:149-151 (1972)
© 1972 American Society of Plant Biologists

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Articles

Photosynthesis in Eurasian Watermilfoil (Myriophyllum spicatum L.) 1

R. A. Stanley2 and A. W. Naylor

a Department of Botany, Duke University, Durham, North Carolina 27706

Gas exchange of Eurasian watermilfoil (Myriophyllum spicatum L.) indicated a near-zero CO2 compensation point and a high temperature optimum for photosynthesis. These properties are characteristic of plants fixing CO2 by a {beta}-carboxylation mechanism. Operation of the Calvin cycle was shown and no evidence for {beta}-carboxylation was obtained. These results indicate that near-zero CO2 compensation points are not dependent on a {beta}-carboxylation mechanism.

2 Present address: Environmental Biology Branch, Division of Environmental Research and Development, Tennessee Valley Authority, Muscle Shoals, Ala. 35660.

1 This research was supported by the Tennessee Valley Authority and the Herman Frasch Foundation.






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ASPB Publications PLANT PHYSIOLOGY THE PLANT CELL
Copyright © 1972 by the American Society of Plant Biologists