1983
DOI: 10.1104/pp.73.3.735
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Photoregulation of Phosphoenolpyruvate Carboxylase in Salsola soda L. and Other C4 Plants

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Cited by 79 publications
(57 citation statements)
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“…This phenomenon coincides well with recent findings of a light modulation of PEP carboxylase (5,13). Modulation of PEP carboxylase by light has been initially reported in several C4 species with a 2-to 3-fold increase following a dark to light transition (17,18,25). However, recent reports revealed that there were up to 30-fold differences in PEP carboxylase activity during dark to light transitions in maize when assayed in simulated conditions of dark or light or in the presence of effectors (5,13).…”
supporting
confidence: 57%
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“…This phenomenon coincides well with recent findings of a light modulation of PEP carboxylase (5,13). Modulation of PEP carboxylase by light has been initially reported in several C4 species with a 2-to 3-fold increase following a dark to light transition (17,18,25). However, recent reports revealed that there were up to 30-fold differences in PEP carboxylase activity during dark to light transitions in maize when assayed in simulated conditions of dark or light or in the presence of effectors (5,13).…”
supporting
confidence: 57%
“…
ABSTRACTThe rate of CO2 assimilation and levels of metabolites of the C4 cycle and reductive pentose phosphate pathway in attached leaves of maize (Zea mays L.) were (17,18,25). However, recent reports revealed that there were up to 30-fold differences in PEP carboxylase activity during dark to light transitions in maize when assayed in simulated conditions of dark or light or in the presence of effectors (5, 13).
…”
mentioning
confidence: 98%
“…This modification of PEPC includes changes in enzyme activity, affinity for substrate, as well as sensitivity to metabolite effectors and to small pH changes. During the light period of C4 species, PEPC enzyme activity is increased, malate inhibition reduced, and activation by G-6-P increased (4,8). Similar changes have been observed in PEPC from CAM plants, but during the dark period rather than the light (3,9,11,17,19,20).…”
supporting
confidence: 62%
“…There have been reports of 2-fold changes in Vm> and a reduction in K,,,, but these changes vary between species (9,10). These reports can be criticized on the grounds that the extraction procedure lasted 15 min and that any light-induced changes might by then have been reversed.…”
mentioning
confidence: 89%