SERRANO DELGADO , Aurelio

La vida en nuestro planeta depende admirablemente y de f orma casi absoluta de la energía radiante de la luz solar, la cual llega incesantemente a la biosfera en cantidades enormes (1017 W = 3 * 1024 J por año). La energía luminosa es convertida en otras formas de energía mediante la función clorofílica ó Fotosíntesis que llevan a cabo los...

inorganic polyphosphates (polyP) are linear polymers of tens to hundreds orthophosphate residues linked by phosphoanhydride bonds. These fairly abundant biopolymers occur in all extant forms of life, from prokaryotes to mammals, and could have played a relevant role in prebiotic evolution. Since the first identification of polyP deposits as...

The genome of the thermophilic green-sulfur bacterium Chlorobium tepidumTLS possesses two genes encoding putative exopolyphosphatases (PPX; EC 3.6.1.11), namely CT0099 (ppx1, 993 bp) and CT1713 (ppx2, 1557 bp). The predicted polypeptides of 330 and 518 aa residues are Ppx-GppA phosphatases of different domain architectures - the largest one has...

Overexpression of membrane-bound K+-dependent H+-translocating inorganic pyrophosphatases (H+-PPases) from higher plants has been widely used to alleviate the sensitivity toward NaCl in these organisms, a strategy that had been previously tested in Saccharomyces cerevisiae. On the other hand, H+-PPases have been reported to functionally...

According to molecular biology, genomic and proteo- mic data, the phytopathogenic gamma-proteobacte- rium Pseudomonas syringae pv. tomato DC3000 pro-duces a number of proteins that may promote infec- tion and draw nutrients from plants. Remarkably, P. syringae DC3000 strain possesses three paralogous gap genes encoding...

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 Institute's phosphate (NBRIP) medium supplemented with tribasic calcium phosphate, ranging from 2.8 to 4.4. The medium pH...

An NADPH-glutathione reductase (EC 1.6.4.2) has been purified 6,000-fold to electrophoretic homogeneity from the filamentous cyanobacterium Anabaena sp. strain 7119. The purified enzyme exhibits a specific activity of 249 U/mg and is characterized by being a dimeric flavin adenine dinucleotide-containing protein with a ratio of absorbance at...

A bacterial field isolate recovered from infected to- mato plants in a green-house at Sidi Rehal, a region near Casablanca city (Morocco), was identified as the gammaproteobacterium Pseudomonas syringae pv. to- mato DC3000 strain, the causal agent of bacterial speck. The bacterial isolate was characterized by morphological, biochemical and...

The gap-2 gene, encoding the NAD(P)-dependent D-glyceraldehyde-3-phosphate dehydrogenase (GAPDH2) of the cyanobacterium Synechocystis sp. strain PCC 6803, was cloned by functional complementation of an Escherichia coli gap mutant with a genomic DNA library; this is the first time that this cloning strategy has been used for a GAPDH involved in...

Uso de una secuencia nucleotídica que regula el momento de la floración, plantas que la expresan y método para producirlas.La presente invención se refiere a una secuencia nucleotídica que codifica para una secuencia aminoacídica de un alga verde unicelul