Decreto 176/1990, de 13 de septiembre, por el que se establecen normas reguladoras del Depósito Legal en la Comunidad de Castilla y León

Para garantizar la conservación y consulta de todo lo publicado en Castilla a través del Sistema de Bibliotecas de esta Comunidad, se publica el presente Decreto, cuyo contenido regula el número de ejemplares de los distintos tipos de materiales publicados a depositar en las Oficinas del Depósito Legal de las provincias de Castilla y León y la distribución de los mismos, que no menoscaba en ningún caso la cantidad de ejemplares que debe recibir la Biblioteca Nacional

Decreto 214/1996, de 13 de septiembre, por el que se aprueba el Reglamento de los centros y servicios bibliotecarios integrados en el Sistema de Bibliotecas de Castilla y León

Una vez desarrollada la regulación del Consejo de Bibliotecas y la Biblioteca de Castilla y León, el presente Reglamento tiene por finalidad completar el marco jurídico necesario para el funcionamiento del Sistema de Bibliotecas de la Comunidad, estableciendo las normas básicas para su organización y gestión, así como los cauces oportunos para el acceso al mismo de centros y servicios bibliotecarios que, no estando aún integrados en él, deseen hacerlo en el futuro

XTHs from Fragaria vesca: Genomic structure and transcriptomic analysis in ripening fruit and other tissues

Indexación: Scopus.Background: Fragaria vesca or 'woodland strawberry' has emerged as an attractive model for the study of ripening of non-climacteric fruit. It has several advantages, such as its small genome and its diploidy. The recent availability of the complete sequence of its genome opens the possibility for further analysis and its use as a reference species. Fruit softening is a physiological event and involves many biochemical changes that take place at the final stages of fruit development; among them, the remodeling of cell walls by the action of a set of enzymes. Xyloglucan endotransglycosylase/hydrolase (XTH) is a cell wall-associated enzyme, which is encoded by a multigene family. Its action modifies the structure of xyloglucans, a diverse group of polysaccharides that crosslink with cellulose microfibrills, affecting therefore the functional structure of the cell wall. The aim of this work is to identify the XTH-encoding genes present in F. vesca and to determine its transcription level in ripening fruit. Results: The search resulted in identification of 26 XTH-encoding genes named as FvXTHs. Genetic structure and phylogenetic analyses were performed allowing the classification of FvXTH genes into three phylogenetic groups: 17 in group I/II, 2 in group IIIA and 4 in group IIIB. Two sequences were included into the ancestral group. Through a comparative analysis, characteristic structural protein domains were found in FvXTH protein sequences. In complement, expression analyses of FvXTHs by qPCR were performed in fruit at different developmental and ripening stages, as well as, in other tissues. The results showed a diverse expression pattern of FvXTHs in several tissues, although most of them are highly expressed in roots. Their expression patterns are not related to their respective phylogenetic groups. In addition, most FvXTHs are expressed in ripe fruit, and interestingly, some of them (FvXTH 18 and 20, belonging to phylogenic group I/II, and FvXTH 25 and 26 to group IIIB) display an increasing expression pattern as the fruit ripens. Conclusion: A discrete group of FvXTHs (18, 20, 25 and 26) increases their expression during softening of F. vesca fruit, and could take part in cell wall remodeling required for softening in collaboration with other cell wall degrading enzymes.https://bmcgenomics.biomedcentral.com/articles/10.1186/s12864-017-4255-

Sequential Quantum Cloning

Not all unitary operations upon a set of qubits can be implemented by sequential interactions between each qubit and an ancillary system. We analyze the specific case of sequential quantum cloning 1->M and prove that the minimal dimension D of the ancilla grows linearly with the number of clones M. In particular, we obtain D = 2M for symmetric universal quantum cloning and D = M+1 for symmetric phase-covariant cloning. Furthermore, we provide a recipe for the required ancilla-qubit interactions in each step of the sequential procedure for both cases.Comment: 4 pages, no figures. New version with changes. Accepted in Physical Review Letter