scholarly journals A Minimal Serine/Threonine Protein Kinase Circadianly Regulates Phosphoenolpyruvate Carboxylase Activity in Crassulacean Acid Metabolism-Induced Leaves of the Common Ice Plant

2000 ◽  
Vol 123 (4) ◽  
pp. 1471-1482 ◽  
Author(s):  
Tahar Taybi ◽  
Shameekumar Patil ◽  
Raymond Chollet ◽  
John C. Cushman
Keyword(s):  
Protein Kinase ◽  
Phosphoenolpyruvate Carboxylase ◽  
Crassulacean Acid Metabolism ◽  
Acid Metabolism ◽  
Ice Plant ◽  
Carboxylase Activity ◽  
The Common

scholarly journals Developmental Control of Crassulacean Acid Metabolism Inducibility by Salt Stress in the Common Ice Plant

1990 ◽  
Vol 94 (3) ◽  
pp. 1137-1142 ◽  
Author(s):  
John C. Cushman ◽  
Christine B. Michalowski ◽  
Hans J. Bohnert
Keyword(s):  
Salt Stress ◽  
Crassulacean Acid Metabolism ◽  
Acid Metabolism ◽  
Ice Plant ◽  
Developmental Control ◽  
The Common

scholarly journals Halophyte Common Ice Plants: A Future Solution to Arable Land Salinization

2019 ◽  
Vol 11 (21) ◽  
pp. 6076 ◽  
Author(s):  
Danilo Loconsole ◽  
Bernardo Murillo-Amador ◽  
Giuseppe Cristiano ◽  
Barbara De Lucia
Keyword(s):  
Water Stress ◽  
Wild Species ◽  
Crassulacean Acid Metabolism ◽  
Acid Metabolism ◽  
Arable Land ◽  
Antioxidant Properties ◽  
Salt Tolerant ◽  
Ice Plant ◽  
C3 Photosynthesis ◽  
The Common

The problems associated with the salinization of soils and water bodies and the increasing competition for scarce freshwater resources are increasing. Current attempts to adapt to these conditions through sustainable agriculture involves searching for new highly salt-tolerant crops, and wild species that have potential as saline crops are particularly suitable. The common ice plant (Mesembryanthemum crystallinum L.) is an edible halophyte member of the Aizoaceae family, which switches from C3 photosynthesis to crassulacean acid metabolism (CAM) when exposed to salinity or water stress. The aim of this review was to examine the potential of using the ice plant in both the wild and as a crop, and to describe its ecology and morphology, environmental and agronomic requirements, and physiology. The antioxidant properties and mineral composition of the ice plant are also beneficial to human health and have been extensively examined.

Diurnal expression of five protein phosphatase type 2C genes in the common ice plant, Mesembryanthemum crystallinum

2007 ◽  
Vol 34 (7) ◽  
pp. 581 ◽  
Author(s):  
Ko Sato ◽  
Hiroaki Ohsato ◽  
Shunsuke Izumi ◽  
Saori Miyazaki ◽  
Hans J. Bohnert ◽  
...  
Keyword(s):  
Salt Stress ◽  
Protein Phosphatase ◽  
Continuous Light ◽  
Mesembryanthemum Crystallinum ◽  
Diurnal Fluctuation ◽  
Mrna Levels ◽  
Ice Plant ◽  
Carboxylase Activity ◽  
The Common ◽  
Protein Phosphatase Type

The common ice plant, Mesembryanthemum crystallinum L., is a eu-halophytic model species with an environmental stress-initiated switch from C3 photosynthesis to crassulacean acid metabolism (CAM). Phosphoenolpyruvate carboxylase activity in 6-week-old plants exposed to salt stress for 5 days was ~15-fold higher than before stress, indicating the salinity-dependent induction of the C3 to CAM transition. Five plant protein phosphatase type 2C (PP2C) genes were cloned, representative of five of the 10 plant PP2C sub-families. We measured mRNA levels of these PP2Cs and of myo-inositol 1-phosphate synthase (Inps1) in 6-week-old plants before (C3) and after (CAM) salt stress. Remarkably, four PP2C genes and Inps1 were expressed with a diurnal fluctuation in plants in C3 mode. After salt-induced CAM induction, the six genes were expressed with more prominent fluctuations than before stress, suggesting that these PP2C genes may be involved in the diurnal regulation of protein phosphorylation in CAM. Under continuous light treatment the expression of two PP2C genes continued to fluctuate, indicating that their expression is controlled by circadian rhythm.

How to tell the time: the regulation of phosphoenolpyruvate carboxylase in Crassulacean acid metabolism (CAM) plants

2003 ◽  
Vol 31 (3) ◽  
pp. 728-730 ◽  
Author(s):  
H.G. Nimmo
Keyword(s):  
Circadian Rhythms ◽  
Phosphoenolpyruvate Carboxylase ◽  
Crassulacean Acid Metabolism ◽  
Acid Metabolism ◽  
Circadian Oscillator ◽  
Cam Plants ◽  
Reversible Phosphorylation ◽  
Circadian Expression ◽  
Phosphoenolpyruvate Carboxylase Kinase ◽  
Co2 Metabolism

Crassulacean acid metabolism (CAM) plants exhibit persistent circadian rhythms of CO2 metabolism. These rhythms are driven by changes in the flux through phosphoenolpyruvate carboxylase, which is regulated by reversible phosphorylation in response to a circadian oscillator. This article reviews progress in our understanding of the circadian expression of phosphoenolpyruvate carboxylase kinase.

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