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Metabolic Aspects of Thermogenesis in Male Cones of Five Cycad Species
William Tang, Leonel Sternberg and David Price
American Journal of Botany
Vol. 74, No. 10 (Oct., 1987), pp. 1555-1559
Published by: Botanical Society of America, Inc.
Stable URL: http://www.jstor.org/stable/2444049
Page Count: 5
You can always find the topics here!Topics: Starches, Thermogenesis, Lipids, Carbon dioxide, Plants, Species, Respiration, Inflorescences, Lipid metabolism, Pollination
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High starch concentrations in the sporophylls of male cones of five species of cycad and their depletion during their heat-producing phase of development suggest that starch is a major fuel source for thermogenesis in these plants. Carbon-13/carbon-12 ratio analyses of respired CO2, starch, and lipids in a male cone of one of these species, Macrozamia moorei F. Muell., indicate that although starch is a major contributor to respiration, lipids are also an important respiratory substrate.
American Journal of Botany © 1987 Botanical Society of America, Inc.