Plant and Cell Physiology, 1992, Vol. 33, No. 6 805-809
© 1992
Short Communication |
Two Different Mechanisms for Transport of Pyruvate into Mesophyll Chloroplasts of C4 Plantsa Comparative Study
Department of Biochemistry, Faculty of Science, Saitama University Urawa, 338 Japan
Thirty-eight C4 species including both mono- and dicotyledons were surveyed for light-enhanced pyruvate uptake into mesophyll chloroplasts and tested whether this enhancement could be mimicked by either a "sodium jump" or a "proton jump" of the medium in the dark. The majority of species responded to a sodium jump, while only species of the Andropogoneae and the Arundinelleae from the Gramineae responded to a proton jump.
(Received April 17, 1992; Accepted June 18, 1992)
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