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Mechanism of Light Regulation of Rubisco by Rubisco Activase via Thioredoxin -F in Arabidopsis Thaliana
Duplication history and molecular evolution of the rbcS multigene family in angiosperms.
Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) is considered to be the main enzyme determining the rate of photosynthesis. The small subunit of the protein, encoded by the rbcS gene, has been shown to influence the catalytic efficiency, CO2 specificity, assembly, activity, and stability o...
Improved Temperature Response Functions for Modeling Photosynthetic Carbon Assimilation in the Context of Rising Carbon Dioxide
Physiological,anatomical and biomass partitioning responses to ozone in the Mediterranean endemic plant Lamottea dianae
Effects Of Soil Nitrogen (N) Deficiency On Photosynthetic N-Use Efficiency In N-Fixing And Non-N-Fixing Tree Seedlings In Subtropical China
Soil nitrogen (N) deficiency can affect the photosynthetic N-use efficiency (PNUE), mesophyll conductance (gm), and leaf N allocation in many plant species. However, there is a lack of information about how these physiological characteristics in N-fixing trees could be affected by soil N deficiency...
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Ecophysiological responses to flooding in tropical trees tolerating a flame
La inundación de las plantas inhibe la absorción de agua, ocasiona cierre estomático y reduce la tasa fotosintética (A). En las especies tolerantes, estas respuestas fisiológicas se revierten con el tiempo. En un bosque estacionalmente inundado de Brasil, nos propusimos validar un modelo para explic...
Poleward expansion of the coccolithophore Emiliania huxleyi
Coccolithophores are one of the most abundant eukaryotic phytoplankton in the oceans and are distinguished by their ability to build calcitic platelets (coccoliths). Of the numerous species, Emiliania huxleyi is considered one of the major calcifiers in the pelagic ocean. There is growing concern th...
Crosstalk of protein phosphorylation and lysine acetylation on 14-3-3 proteins and their applications in brassinosteroid signaling and photosynthesis
Protein phosphorylation and lysine acetylation are two important post-translational modifications (PTMs) in eukaryotes. However, the crosstalk between these two modifications is largely unknown. We demonstrated that both phosphorylation and lysine acetylation occurred to an Arabidopsis protein, 14-3...
Diversity of CO2 concentrating mechanisms and responses to CO2 concentration in marine and freshwater diatoms
International audience The presence of CO2-concentrating mechanisms (CCMs) is believed to be one of the characteristics that allows diatoms to thrive in many environments and to be major contributors to global productivity. Here, the type of CCM and the responses to variable CO2 concentration were s...
A Theoretical Approach to Guiding Biotechnological Improvement of Crop Photosynthetic Efficiency
Study of Ribulose 1, 5-Bisphosphate Carboxylase from Sulfobacillus acidophilus Strain NY-1 Isolated from Lignite Mines
One of the key compounds engaged in the carbon dioxide fixation cycle (Calvin-Benson-Bassham cycle) is Ribulose 1, 5-Bisphosphate Carboxylase/ Oxygenase (RuBisCo). These are known to act as a carbon sink thus leading to decrease of the carbon level in the atmosphere. This unique property of RuBisCo...
Identifying the Rubisco Recognition Domain and Critical Arginines in Activase and Engineering Activase With Improved Thermostability for Arabidopsis
Genetic diversity of Ectocarpus (Ectocarpales, Phaeophyceae) in Peru and northern Chile, the area of origin of the genome-sequenced strain
International audience The origin of the Ectocarpus strain used for genome sequencing (the ‘genome strain’) was Peru, where no Ectocarpus had been reported previously. To study the genetic diversity in the region and to increase the number of individuals from this area available for genetic experime...
Guidelines for the Use and Interpretation of Assays for Monitoring Autophagy (3rd edition)
Effects of elevated ozone on physiological, anatomical and ultrastructural characteristics of four common urban tree species in China
Differential EXPRESSION OF Proteins RELATED TO Primary metabolism IN ‘Moncada’ Mandarin leaves WITH contrasting FRUIT LOAD
Molecular and morphological relationships between two closely related species, Turbinaria ornata and T. conoides (Sargassaceae, Phaeophyceae)
International audience We employed four markers (two chloroplastic, one mitochondrial and one nuclear) to investigate whether Turbinaria ornata and Turbinaria conoides, two morphologically similar brown algae, are distinct species. The molecular data revealed reciprocal monophyly, thus confirming th...
Phosphoregulation of photorespiratory enzymes in Arabidopsis thaliana Phosphorégulation de la photorespiration chez Arabidopsis thaliana
Photorespiration is an essential process in oxygenic photosynthetic organisms, and it is triggered by the oxygenase activity of Ribulose-1,5-Bisphosphate Carboxylase/Oxygenase (RuBisCO) to produce one molecular 3-phosphoglycerate and one molecular 2-phosphoglycolate. The toxic 2-PG is recycled by th...
Engineering cyanobacterial genes into Glycine max (soybean) leads to increased photosynthesis and productivity
The rise in global population, increasing economic status in the developing world, reduction in arable land and increase in extreme weather all pose serious problems to sustaining sufficient food production to meet the ever increasing demand. With yields per unit land area failing to increase to mat...
Acclimatisation at the polar night followed by the return of light to the Arctic diatomy Fragilariopsis cylindrus
Polar winter in the Arctic can last as long as 6 months each year at high latitude. During this period, no light is available for photoautotrophic growth. Nevertheless, when light returns in spring, a sea-ice algae and phytoplankton bloom develops in the surface ocean layers. Therefore, the followin...
Role of Microalgae in Global CO2 Sequestration: Physiological Mechanism, Recent Development, Challenges, and Future Prospective
The rising concentration of global atmospheric carbon dioxide (CO2) has severely affected our planet’s homeostasis. Efforts are being made worldwide to curb carbon dioxide emissions, but there is still no strategy or technology available to date that is widely accepted. Two basic strategies are empl...
Protein degradation rate as affected by plant proteases among fresh samples of perennial ryegrass cultivars (Lolium perenne L.) / Einfluss pflanzlicher Proteasen auf den Proteinabbau bei unterschiedlichen Englischen Raigrass Sorten (Lolium perenne L.)
Im vorliegenden Experiment wurden 10 diploide Sorten von Deutschem Weidelgras (Lolium perenne) des mittelfrühen Sortiments zum Zeitpunkt der früher Siloreife im ersten und zweiten Aufwuchs in Norddeutschland untersucht. Ziel war es in frischen Blättern die Auswirkungen pansenähnlicher Bedingungen au...
Rubisco biogenesis and assembly in Chlamydomonas reinhardtii
The necessity to coordinate the expression of genes originating from different genomes within the plant cell resulted in the appearance of mechanisms imposing nuclear control over organelle gene expression. Anterograde signaling through sequence-specific trans-acting proteins (OTAFs) coexists in the...
Protein dynamics in early steps of chloroplast biogenesis
Chloroplast biogenesis is a highly complex process. Upon illumination undifferentiated proplastids differentiate into green chloroplasts with thylakoid membranes and a functional photosynthetic apparatus. This transition process is very rapid and, therefore, difficult to dissect. So far the molecula...
Molecular évolution of RuBisCO subunits
The environmental conditions of our planet have been changing since its origin. For species’ survival, adaptation to the environment is crucial, for example through the adaptive evolution of photosynthesis. The appearance of the mechanism to concentrate CO2 has given some species a selective advanta...