Expression of a phosphoenolpyruvate carboxylase promoter from Mesembryanthemum crystallinum is not salt-inducible in mature transgenic tobacco

1993 ◽  
Vol 21 (3) ◽  
pp. 561-566 ◽  
Author(s):  
John C. Cushman ◽  
Michael S. Meiners ◽  
Hans J. Bohnert
Keyword(s):  
Transgenic Tobacco ◽  
Phosphoenolpyruvate Carboxylase ◽  
Mesembryanthemum Crystallinum

Effect of Different CO2 Regimes on the Induction of Crassulacean Acid Metabolism in Mesembryanthemum crystallinum L

1979 ◽  
Vol 6 (6) ◽  
pp. 589 ◽  
Author(s):  
K Winter
Keyword(s):  
Water Stress ◽  
Phosphoenolpyruvate Carboxylase ◽  
Crassulacean Acid Metabolism ◽  
Acid Metabolism ◽  
High Salinity ◽  
Stomatal Closure ◽  
Initial Step ◽  
Mesembryanthemum Crystallinum ◽  
Initial Event ◽  
Response To Water

Induction of crassulacean acid metabolism (CAM) in Mesembryanthemum crystallinum in response to high salinity was studied in plants grown in different CO2 regimes to determine whether the induction of CAM could be controlled by CO2 supply in the light and dark; a possible consequence of stomatal closure in response to water stress. The activity of extractable phosphoenolpyruvate carboxylase (EC 4.1.1.31) and the nocturnal change in malate content were followed at frequent intervals after onset of the treatments. The results suggest that the initial event during the induction of CAM is a change in the biochemical apparatus, indicated by the activity of phosphoenolpyruvate carboxylase, which then leads to the day/night fluctuations of malate synthesis typical of CAM. This initial step is not controlled by the availability of CO2 in the light or dark.

scholarly journals Expression of Maize Phosphoenolpyruvate Carboxylase in Transgenic Tobacco

1992 ◽  
Vol 98 (2) ◽  
pp. 458-464 ◽  
Author(s):  
Richard L. Hudspeth ◽  
John W. Grula ◽  
Ziyu Dai ◽  
Gerald E. Edwards ◽  
Maurice S. B. Ku
Keyword(s):  
Transgenic Tobacco ◽  
Phosphoenolpyruvate Carboxylase
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