Evaluaciones en campo de somaclones de papa (Solanum tuberosum Lin.) de la variedad “Desirée” obtenidos por variación somaclonal y mutagénesis in vitro

One evaluated the yield and its components, the percentage of affectation as opposed to Alternaria solani (Sorauer), the number of tubers that presented affectations by Streptomyces scabies (Thaxter) Wakman and the morphologic variations in tubers. The parameters previously mentioned were evaluated in somaclones IBP-10, IBP-27 and IBP-30, as witness were used the variety “Desirée”, that it is the variety from which they originated somaclones studied. Somaclones IBP-10 and IBP-27 presented yields similar to the original variety, the lowest values were reached about somaclon IBP-30. With respect to the diseases somaclones presented inferior levels of affectation to the original variety front to Alternaria solani, in the evaluation of the number of tubers affected by the common scab was observed that somaclon IBP-30 presented the greater percentage of affected tubers, the IBP-10 the smaller percentage and the IBP-27 presented an intermediate behavior. Changes in the color of the skin and the form of tubers were observed. Somaclón IBP-10 presented yellow coloration in the skin and forms oval small, somaclon IBP-27 presented oval form in the tubers.Key words: Alternaria solani , mutants, Streptomyces scabiesSe evaluó el rendimiento y sus componentes, el porcentaje de afectación frente a Alternaria solani (Sorauer), el número de tubérculos que presentaron afectaciones por Streptomyces scabies (Thaxter) Wakman y las variaciones morfológicas en los tubérculos. Los parámetros anteriormente mencionados se evaluaron en los somaclones IBP-10, IBP-27 e IBP-30, como control se empleó la variedad “Desirée”, que es a partir de la cual se originaron los somaclones estudiados. Los somaclones IBP-10 e IBP-27 presentaron rendimientos similares a la variedad original, los valores más bajos fueron alcanzados por el somaclón IBP-30. Con respecto a las enfermedades los somaclones presentaron niveles de afectación inferiores a la variedad original frente a Alternaria solani. En la evaluación del número de tubérculos afectados por la costra común se observó que el somaclón IBP-30 presentó el mayor porcentaje de tubérculos afectados, el IBP-10 el menor porcentaje y el IBP-27 presentó un comportamiento intermedio. Se observaron cambios en el color de la piel y la forma de los tubérculos. El somaclón IBP-10 presentó coloración amarilla en la piel y forma oval pequeña, mientras que el somaclón IBP-27 presentó forma oval en el tubérculo.Palabras clave: Alternaria solani, mutantes, Streptomyces scabie

Challenges and perspectives on tackling illegal or unsustainable wildlife trade

Illegal or unsustainable wildlife trade (IUWT) currently presents one of the most high-profile conservation challenges. There is no “one-size-fits-all” strategy, and a variety of disciplines and actors are needed for any counteractive approach to work effectively. Here, we detail common challenges faced when tackling IUWT, and we describe some available tools and technologies to curb and track IUWT (e.g. bans, quotas, protected areas, certification, captive-breeding and propagation, education and awareness). We discuss gaps to be filled in regulation, enforcement, engagement and knowledge about wildlife trade, and propose practical solutions to regulate and curb IUWT, paving the road for immediate action

Linfoma no Hodgkin primario de sistema nervioso central en un paciente pediátrico sin inmunodeficiencia relacionada

El linfoma no Hodgkin primario de sistema nervioso central es una afección poco frecuente en la población pediátrica. No existen (o son pocas) las recomendaciones o estudios clínicos que sean útiles para definir la mejor opción terapéutica. El objetivo de este trabajo es describir el caso de una niña con linfoma primario de sistema nervioso central, sin ninguna inmunodeficiencia asociada, y realizar de una revisión cualitativa de la literatura especializada sobre esta enfermedad en niños. Se ha postulado la posibilidad de cambios citogenéticos que pudieran explicar la heterogeneidad en el comportamiento de esta enfermedad pues se ha visto que es distinto al de otros linfomas en presentaciones habituales. La experiencia de tratamiento en niños con linfoma se basa en resultados de tratamientos obtenidos en pacientes adultos, con regímenes basados principalmente en antimetabolitos como metotrexato y citarabina. Aún es controvertida la utilidad de la radioterapia craneal, la cual sólo se recomienda en casos específicos

Calli induction and plant regeneration in Tectona grandis L.

One evaluated the yield and its components, the percentage of affectation as opposed to Alternaria solani (Sorauer), the number of tubers that presented affectations by Streptomyces scabies (Thaxter) Wakman and the morphologic variations in tubers. The parameters previously mentioned were evaluated in somaclones IBP-10, IBP-27 and IBP-30, as witness were used the variety “Desirée”, that it is the variety from which they originated somaclones studied. Somaclones IBP-10 and IBP-27 presented yields similar to the original variety, the lowest values were reached about somaclon IBP-30. With respect to the diseases somaclones presented inferior levels of affectation to the original variety front to Alternaria solani, in the evaluation of the number of tubers affected by the common scab was observed that somaclon IBP-30 presented the greater percentage of affected tubers, the IBP-10 the smaller percentage and the IBP-27 presented an intermediate behavior. Changes in the color of the skin and the form of tubers were observed. Somaclón IBP-10 presented yellow coloration in the skin and forms oval small, somaclon IBP-27 presented oval form in the tubers. Key words: Alternaria solani , mutants, Streptomyces scabie

Convective processes in high resolution models: Impact of the lead time of the simulation

Ponencia presentada en: XXXV Jornadas Científicas de la AME y el XIX Encuentro Hispano Luso de Meteorología celebrado en León, del 5 al 7 de marzo de 2018.Most heavy precipitation events occurring in the world are associated with convective processes. As these phenomena produce severe economic and societal impacts, it is crucial to get to know their behaviour and their evolution in a future climate. For this reason, the international project CORDEX (Coordinated Regional climate Downscaling Experiment) proposed the Flagship Pilot Study on Convective phenomena at high resolution over Europe and the Mediterranean, focused on the study of convection in Europe. In this initiative, multi-model and multi-physics results and uncertainties of regional climate models (RCMs) are explored by means of ensembles of simulations. In this work, we additionally explore the role of internal variability to explain the differences found in the results by different model configurations.This work is funded by the Spanish government through grant BES-2016-078158 and MINECO/FEDER co-funded projects INSIGNIA (CGL2016-79210-R) and MULTI-SDM (CGL2015-66583-R)