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Independent fluctuations of malate and citrate in the CAM species Clusia hilariana Schltdl. under low light and high light in relation to photoprotection

Journal of Plant Physiology, 15 March 2013, Vol.170(5), pp.453-458 [Peer Reviewed Journal]

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  • Title:
    Independent fluctuations of malate and citrate in the CAM species Clusia hilariana Schltdl. under low light and high light in relation to photoprotection
  • Author: Miszalski, Zbigniew ; Kornas, Andrzej ; Rozpądek, Piotr ; Fischer-Schliebs, Elke ; Lüttge, Ulrich
  • Found In: Journal of Plant Physiology, 15 March 2013, Vol.170(5), pp.453-458 [Peer Reviewed Journal]
  • Subjects: Citrate ; Clusia ; High Light ; Malate ; Obligate Cam ; Xanthophyll-Cycle ; Botany
  • Language: English
  • Description: Schltdl. is described in literature as an obligate (CAM) species. In the present study we assessed the effect of irradiance with low light (LL, 200 μmol m s ) and high light (HL, 650–740 μmol m s ), on the interdependency of citrate and malate diurnal fluctuations. In plants grown at HL CAM-type oscillations of concentration of citrate and malate were obvious. However, at LL daily courses of both acids do not seem to indicate efficient utilization of these compounds as CO and NADPH sources. One week after transferring plants from LL to HL decarboxylation of malate was accelerated. Thus, in the CAM plant two independent rhythms of accumulation and decarboxylation of malate and citrate take place, which appear to be related to photosynthesis and respiration, respectively....
  • Identifier: ISSN: 0176-1617 ; DOI: 10.1016/j.jplph.2012.11.005

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