skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Transgenic Perturbation of the Decarboxylation Phase of Crassulacean Acid Metabolism Alters Physiology and Metabolism But Has Only a Small Effect on Growth

Journal Article · · Plant Physiology (Bethesda)
 [1];  [1];  [2]; ORCiD logo [1]
  1. Univ. of Liverpool, Liverpool (United Kingdom)
  2. Univ. of Liverpool, Liverpool (United Kingdom); Univ. of Cambridge, Cambridge (United Kingdom)

Here, mitochondrial NAD-malic enzyme (ME) and/or cytosolic/plastidic NADP-ME combined with the cytosolic/plastidic pyruvate orthophosphate dikinase (PPDK) catalyze two key steps during light-period malate decarboxylation that underpin secondary CO2 fixation in some Crassulacean acid metabolism (CAM) species. We report the generation and phenotypic characterization of transgenic RNA interference lines of the obligate CAM species Kalanchoë fedtschenkoi with reduced activities of NAD-ME or PPDK. Transgenic line rNAD-ME1 had 8%, and rPPDK1 had 5% of the wild-type level of activity, and showed dramatic changes in the light/dark cycle of CAM CO2 fixation. In well-watered conditions, these lines fixed all of their CO2 in the light; they thus performed C3 photosynthesis. The alternative malate decarboxylase, NADP-ME, did not appear to compensate for the reduction in NAD-ME, suggesting that NAD-ME was the key decarboxylase for CAM. The activity of other CAM enzymes was reduced as a consequence of knocking out either NAD-ME or PPDK activity, particularly phosphoenolpyruvate carboxylase (PPC) and PPDK in rNAD-ME1. Furthermore, the circadian clock-controlled phosphorylation of PPC in the dark was reduced in both lines, especially in rNAD-ME1. This had the consequence that circadian rhythms of PPC phosphorylation, PPC kinase transcript levels and activity, and the classic circadian rhythm of CAM CO2 fixation were lost, or dampened toward arrhythmia, under constant light and temperature conditions. Surprisingly, oscillations in the transcript abundance of core circadian clock genes also became arrhythmic in the rNAD-ME1 line, suggesting that perturbing CAM in K. fedtschenkoi feeds back to perturb the central circadian clock.

Research Organization:
Univ. of Nevada, Reno, NV (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0008834
OSTI ID:
1455174
Journal Information:
Plant Physiology (Bethesda), Vol. 167, Issue 1; ISSN 0032-0889
Publisher:
American Society of Plant BiologistsCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 53 works
Citation information provided by
Web of Science

References (62)

Period and phase control by temperature in the circadian rhythm of carbon dioxide fixation in illuminated leaves of Bryophyllum fedtschenkoi journal April 1989
Control of stomatal aperture: A renaissance of the old guard journal September 2011
COPPER ENZYMES IN ISOLATED CHLOROPLASTS. POLYPHENOLOXIDASE IN BETA VULGARIS journal January 1949
Exploiting the potential of plants with crassulacean acid metabolism for bioenergy production on marginal lands journal April 2009
Engineering crassulacean acid metabolism to improve water-use efficiency journal May 2014
Metabolite Control Overrides Circadian Regulation of Phospho enol pyruvate Carboxylase Kinase and CO 2 Fixation in Crassulacean Acid Metabolism journal November 1999
Conservation and Divergence of Circadian Clock Operation in a Stress-Inducible Crassulacean Acid Metabolism Species Reveals Clock Compensation against Stress journal February 2005
C 4 acid decarboxylases required for C 4 photosynthesis are active in the mid-vein of the C 3 species Arabidopsis thaliana , and are important in sugar and amino acid metabolism journal January 2010
Cloning and expression of maize-leaf pyruvate, Pi dikinase regulatory protein gene journal June 2006
Circadian rhythms in the activity of a plant protein kinase. journal August 1991
Further Analysis of Maize C4 Pyruvate,Orthophosphate Dikinase Phosphorylation by Its Bifunctional Regulatory Protein Using Selective Substitutions of the Regulatory Thr-456 and Catalytic His-458 Residues journal March 2000
Regulation of pyruvate, orthophosphate dikinase by ADP-/Pi-dependent reversible phosphorylation in C3 and C4 plants journal June 2003
Pyruvate,Orthophosphate Dikinase in Leaves and Chloroplasts of C 3 Plants Undergoes Light-/Dark-Induced Reversible Phosphorylation journal February 2002
Posttranslational Modification of Maize Chloroplast Pyruvate Orthophosphate Dikinase Reveals the Precise Regulatory Mechanism of Its Enzymatic Activity journal April 2014
Shared origins of a key enzyme during the evolution of C4 and CAM metabolism journal March 2014
Protective Mechanism of the Mexican Bean Weevil against High Levels of [alpha]-Amylase Inhibitor in the Common Bean journal June 1996
Cloning and Sequence of a cDNA Encoding Phenylalanine Ammonia-Lyase from the Tropical Forage Legume Stylosanthes humilis journal July 1995
Isolation and Characterization of Mutants of Common Ice Plant Deficient in Crassulacean Acid Metabolism journal March 2008
CRASSULACEAN ACID METABOLISM: Molecular Genetics journal June 1999
Nicotinamide Adenine Dinucleotide-specific “Malic” Enzyme in Kalanchoë daigremontiana and Other Plants Exhibiting Crassulacean Acid Metabolism journal February 1976
Regulation of Phospho enol pyruvate Carboxylase Phosphorylation by Metabolites and Abscisic Acid during the Development and Germination of Barley Seeds journal August 2008
Evolution of asexual reproduction in leaves of the genus Kalanchoe journal September 2007
Isolation and characterisation of a wheat phosphoenolpyruvate carboxylase gene. Modelling of the encoded protein journal February 2002
The co-ordination of central plant metabolism by the circadian clock journal October 2005
Phosphoenolpyruvate carboxylase kinase is a novel protein kinase regulated at the level of expression journal November 1999
Higher plant phosphoenolpyruvate carboxylase kinase is regulated at the level of translatable mRNA in response to light or a circadian rhythm journal December 1996
Determination of NAD Malic Enzyme in Leaves of C 4 Plants: EFFECTS OF MALATE DEHYDROGENASE AND OTHER FACTORS journal February 1982
Photosynthetic entrainment of the Arabidopsis thaliana circadian clock journal October 2013
Characteristics of C4 photosynthesis in stems and petioles of C3 flowering plants journal January 2002
Storage of competent cells for Agrobacterium transformation journal January 1988
Intracellular transport and pathways of carbon flow in plants with crassulacean acid metabolism journal January 2005
GATEWAY™ vectors for Agrobacterium-mediated plant transformation journal May 2002
Species variation in the intracellular localization of pyruvate, Pi dikinase in leaves of crassulacean-acid-metabolism plants: an immunogold electron-microscope study journal March 2000
CO2-concentrating: consequences in crassulacean acid metabolism journal November 2002
Genetic Interactions between Phytochrome A, Phytochrome B, and Cryptochrome 1 during Arabidopsis Development journal September 1998
Diurnal changes in the properties of phosphoenolpyruvate carboxylase in Bryophyllum leaves: a possible co valent modification journal December 1984
Purification of the phosphorylated night form and dephosphorylated day form of phosphoenolpyruvate carboxylase from Bryophyllum fedtschenkoi journal October 1986
Persistent circadian rhythms in the phosphorylation state of phosphoenolpyruvate carboxylase from Bryophyllum fedtschenkoi leaves and in its sensitivity to inhibition by malate journal March 1987
The regulation of phosphoenolpyruvate carboxylase in CAM plants journal February 2000
Crassulacean Acid Metabolism: A Curiosity in Context journal June 1978
Regulatory phosphorylation of C4 phosphoenolpyruvate carboxylase from Sorghum: An immunological study using specific anti-phosphorylation site-antibodies journal March 1995
The Arabidopsis PPDK gene is transcribed from two promoters to produce differentially expressed transcripts responsible for cytosolic and plastidic proteins journal August 2006
Pyruvate Pi dikinase activity in different groups of crassulacean acid metabolism plants journal May 1982
Evolution along the crassulacean acid metabolism continuum journal January 2010
Multiple isoforms of phosphoenolpyruvate carboxylase in the Orchidaceae (subtribe Oncidiinae): implications for the evolution of crassulacean acid metabolism journal June 2014
Quantification of starch in plant tissues journal August 2006
Intracellular Localization of Some Key Enzymes of Crassulacean Acid Metabolism in Sedum praealtum journal April 1979
Cloning of the Arabidopsis Clock Gene TOC1, an Autoregulatory Response Regulator Homolog journal August 2000
Occurrence of Pyruvate Orthophosphate Dikinase in the Succulent Plant, Kalanchoë daigremontiana Hamet. et. Perr. journal November 1975
Arabidopsis NAD-Malic Enzyme Functions As a Homodimer and Heterodimer and Has a Major Impact on Nocturnal Metabolism journal January 2008
Immunological analysis of the phosphorylation state of maize C 4 -form phosphoenolpyruvate carboxylase with specific antibodies raised against a synthetic phosphorylated peptide: Immunological detection of phosphorylated PEPC journal January 2000
Stomatal responses to CO 2 during a diel Crassulacean acid metabolism cycle in Kalanchoe daigremontiana and Kalanchoe pinnata journal May 2009
Partial Purification and Characterization of Phosphoenolpyruvate Carboxylase Protein-Serine Kinase from Illuminated Maize Leaves journal August 1993
An Endogenous Rhythm in the Rate of Carbon Dioxide Output of Bryophyllum: I. SOME PRELIMINARY EXPERIMENTS journal January 1959
Tansley Review No. 37 Circadian rhythms: their origin and control journal July 1992
On the nature of facultative and constitutive CAM: environmental and developmental control of CAM expression during early growth of Clusia, Kalanchoe, and Opuntia journal June 2007
Facultative crassulacean acid metabolism (CAM) plants: powerful tools for unravelling the functional elements of CAM photosynthesis journal March 2014
Crassulacean Acid Metabolism: Current Status and Perspectives book January 1996
Perturbations of malate accumulation and the endogenous rhythms of gas exchange in the Crassulacean acid metabolism plant Kalancho� daigremontiana: testing the tonoplast-as-oscillator model journal May 2004
Probing the circadian control of phosphoenolpyruvate carboxylase kinase expression in Kalanchoë fedtschenkoi journal January 2002
Decarboxylation of Malate in the Crassulacean Acid Metabolism Plant Bryophyllum (Kalanchoe) fedtschenkoi (Role of NAD-Malic Enzyme) journal December 1995
Patterns of Carbon Partitioning in Leaves of Crassulacean Acid Metabolism Species during Deacidification journal September 1996

Cited By (12)

The role of cis-elements in the evolution of crassulacean acid metabolism photosynthesis journal January 2020
The Kalanchoë genome provides insights into convergent evolution and building blocks of crassulacean acid metabolism journal December 2017
Ecophysiology of constitutive and facultative CAM photosynthesis journal February 2019
Hierarchical clustering reveals unique features in the diel dynamics of metabolites in the CAM orchid Phalaenopsis journal April 2019
Undervalued potential of crassulacean acid metabolism for current and future agricultural production journal June 2019
Comparative genomics can provide new insights into the evolutionary mechanisms and gene function in CAM plants journal September 2019
CRISPR/Cas9-mediated targeted mutagenesis for functional genomics research of crassulacean acid metabolism plants journal September 2019
A roadmap for research on crassulacean acid metabolism (CAM) to enhance sustainable food and bioenergy production in a hotter, drier world journal July 2015
C 4 and crassulacean acid metabolism within a single leaf: deciphering key components behind a rare photosynthetic adaptation journal November 2019
Altered Gene Regulatory Networks Are Associated With the Transition From C3 to Crassulacean Acid Metabolism in Erycina (Oncidiinae: Orchidaceae) journal January 2019
Comparative genomic analysis of C4 photosynthetic pathway evolution in grasses journal January 2009
Shared expression of crassulacean acid metabolism (CAM) genes pre-dates the origin of CAM in the genus Yucca journal April 2019