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Artículo
Protein Dynamics Control of Electron Transfer in Photosynthetic Reaction Centers from Rps. Sulfoviridis
(American Chemical Society, 2008)
In the cycle of photosynthetic reaction centers, the initially oxidized special pair of bacteriochlorophyll molecules is subsequently reduced by an electron transferred over a chain of four hemes of the complex. Here, we ...
Artículo
Solubilization of inorganic phosphate and production of organic acids by bacteria isolated from a Moroccan mineral phosphate deposit
(Academic Journals, 2013)
Three efficient inorganic-phosphate solubilizing bacteria (PSB) were isolated from a phosphate rock deposit of a Moroccan mine. The phosphate solubilization index of these isolates, determined in National Botanical Research ...
Artículo
Integrated functions among multiple starch synthases determine both amylopectin chain length and branch linkage location in Arabidopsis leaf starch
(Oxford University Press, 2011)
This study assessed the impact on starch metabolism in Arabidopsis leaves of simultaneously eliminating multiple soluble starch synthases (SS) from among SS1, SS2, and SS3. Double mutant ss1- ss2- or ss1- ss3- lines were ...
Artículo
The repressive role of Arabidopsis H2A.Z in transcriptional regulation depends on AtBMI1 activity
(Springer Nature, 2019)
H2A.Z variant has emerged as a critical player in regulating plant responses to environment; however, the mechanism by which H2A.Z mediates this regulation remains unclear. In Arabidopsis, H2A.Z has been proposed to have ...
Artículo
A hydrogen bond network in the active site of Anabaena ferredoxin-NADP + reductase modulates its catalytic efficiency
(Elsevier B.V., 2014)
Ferredoxin-nicotinamide-adenine dinucleotide phosphate (NADP+) reductase (FNR) catalyses the production of reduced nicotinamide-adenine dinucleotide phosphate (NADPH) in photosynthetic organisms, where its flavin adenine ...
Artículo
Molecular cloning and biochemical characterization of three phosphoglycerate kinase isoforms from developing sunflower (Helianthus annuus L.) seeds
(Elsevier, 2012)
Three cDNAs encoding different phosphoglycerate kinase (PGK, EC 2.7.2.3) isoforms, two cytosolic (HacPGK1 and HacPGK2) and one plastidic (HapPGK), were cloned and characterized from developing sunflower (Helianthus annuus ...
Artículo
Sequence-dependent cleavage site selection by RNase Z from the cyanobacterium synechocystis sp. PCC 6803
(Elsevier, 2005)
Biosynthesis of transfer RNA requires processing from longer precursors at the 5′- and 3′-ends. In eukaryotes, in archaea, and in those bacteria where the 3′-terminal CCA sequence is not encoded, 3′ processing is carried ...
Artículo
Differential transcriptional regulation of orthologous dps genes from two closely related heterocyst-forming cyanobacteria.
(Oxford University Press, 2015)
In cyanobacteria, DNA-binding proteins from starved cells (Dps) play an important role in the cellular response to oxidative and nutritional stresses. In this study, we have characterized the cell-type specificity and the ...
Artículo
Negative Regulation of Autophagy by Sulfide Is Independent of Reactive Oxygen Species
(American Society of Plant Biologists, 2016)
Accumulating experimental evidence in mammalian, and recently plant, systems has led to a change in our understanding of the role played by hydrogen sulfide in life processes. In plants, hydrogen sulfide mitigates stress ...
Artículo
Redox control of copper homeostasis in cyanobacteria
(Taylor & Francis, 2012)
Copper is essential for all living organisms but is toxic when present in excess. Therefore organisms have developed homeostatic mechanism to tightly regulate its cellular concentration. In a recent study we have shown ...