Identification and characterisation of stripe rust resistance genes Yr66 and Yr67 in wheat cultivar VL gehun 892

Harbans Bariana Lakshmi Kant Naeela Qureshi Urmil Bansal (2022, [Artículo])

Kompetitive Allele Specific PCR Stripe Rust Yr Genes CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA GENETIC MARKERS MARKER-ASSISTED SELECTION RUSTS WHEAT GENES

Associations between endogenous spike cytokinins and grain-number traits in spring wheat genotypes

Gemma Molero Carolina Rivera-Amado Matthew Paul Reynolds John Foulkes (2024, [Artículo])

Spike Cytokinins Grain Number Fruiting Efficiency Wheat Breeding CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA SPIKES CYTOKININS GRAIN FRUITING HARVEST INDEX WHEAT PLANT BREEDING

Using homosoils for quantitative extrapolation of soil mapping models

Andree Nenkam Alexandre Wadoux Budiman Minasny Alex McBratney Pierre C. Sibiry Traore Gatien Falconnier Anthony Whitbread (2022, [Artículo])

Cubist Digital Soil Mapping Model-Based Validation Soil Spatial Variation Soil-Forming Factors CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA LAND USE ORGANIC CARBON SOIL SURVEYS SPATIAL VARIATIONS

Seed integrity, effect of temperature and storage time on germination of Populus luziarum and P. primaveralepensis, endangered subtropical species from Mexico

César Jacobo Pereira MIGUEL ANGEL MUÑIZ CASTRO JOSE ANTONIO VAZQUEZ GARCIA Joel David Flores Rivas ALEJANDRO MUÑOZ URIAS FRANCISCO MARTIN HUERTA MARTINEZ (2022, [Artículo])

"Background: Populus luziarum and P. primaveralepensis are endemic species of western Mexico; growing in riparian forests they are critically endangered. The best way to conserve their seeds is unknown, which could be limiting for their conservation.

Hypothesis: The germinability of both subtropical species is like that of boreal and template Salicaceae species that disperse seeds in spring and early summer, as they germinate quickly with high percentages, and rapidly lose their viability when stored at ambient temperature.

Studied species: Populus luziarum and P. primaveralepensis. Study site and dates: Western Trans-Mexican Volcanic Belt. Jalisco, Mexico. October 2019.

Methods: The physical integrity of the seeds was assessed by X-ray imaging and compared with germinability. In addition, the effect of storage time (nine weeks) under two temperatures (4 and 21 °C) on the percentage and mean germination rate was evaluated.

Results: No significant differences were found between physical integrity and germination in freshly collected seeds for both species. Germination in the first 24 hrs was 91 and 95 % for Populus luziarum and P. primaveralepensis, respectively (week 0). Germination percentages were lower when stored at 21 °C, but P. primaveralepensis was decreased more slowly.

Conclusions: Seeds of subtropical Populus respond similarly to those of species from temperate and boreal climates with early seed dispersal, a crucial condition for establishing ex situ reforestation and conservation programs."

Salicaceae Seed physical integrity Seed storage conditions Subtropical endemic species White poplars BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA VEGETAL (BOTÁNICA) BIOLOGÍA VEGETAL (BOTÁNICA)

Urban muralism in cities and towns of Chiapas. Configuring collective experiences and recovering urban spaces

Maria de Lourdes Morales Vargas (2023, [Artículo, Artículo])

This article expresses some reflections on the practice of urban muralism and the result of the approach to urban muralism projects or initiatives that have taken place in some cities, towns and villages in the state of Chiapas. This approach has made it possible to describe the dynamics, forms of participation, processes and agents that participate in the configuration and collective expression of urban murals in these spaces. From descriptive ethnography and its tools it was possible to approach the experiences of urban intervention that coexist with the community, in streets, parks, business walls, houses. This has made it possible to understand the practice of urban muralism as an artistic, collective, community process, a project of regeneration or urban recovery and as a practice of symbolic production of incidence in the space where it is implanted, configuring multiple experiences.

URBAN MURALISM URBAN MURAL YOUTH CREATIVE PRACTICES RECOVERY OF URBAN SPACES muralismo urbano, mural urbano, arte calle, practicas creativas juveniles, proceso artístico. CIENCIAS SOCIALES; HUMANIDADES Y CIENCIAS DE LA CONDUCTA CIENCIAS SOCIALES HUMANIDADES Y CIENCIAS DE LA CONDUCTA

Multiple approaches to understanding the taxonomic status of an enigmatic new scorpion species of the genus Tityus (Buthidae) from the biogeographic island of Paraje Tres Cerros (Argentina)

Andres Alejandro Ojanguren Affilastro (2017, [Artículo])

Tityus curupi n. sp., belonging to the bolivianus complex, is described from the biogeographically distinct area of Paraje Tres Cerros in north-eastern Argentina. We also present a molecular species delimitation analysis between Tityus curupi n. sp. and its sister species Tityus uruguayensis Borelli 1901 to confirm species integrity. Furthermore, a cytogenetic analysis is presented for these two species which contain different multivalent associations in meiosis, as a consequence of chromosome rearrangements, and the highest chromosome numbers in the genus. © 2017 Ojanguren-Affilastro et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Argentina, chromosome analysis, chromosome rearrangement, genus, human, meiosis, sister, species, anatomy and histology, animal, Argentina, chemistry, chromosome, classification, ecosystem, fluorescence in situ hybridization, genetics, geography, isl BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA BIOLOGÍA DE INSECTOS (ENTOMOLOGÍA) BIOLOGÍA DE INSECTOS (ENTOMOLOGÍA)

Dual function of EDTA with silver nanoparticles for root canal treatment–A novel modification

JUAN MANUEL MARTINEZ ANDRADE (2018, [Artículo])

The chelating and antimicrobial capacity of a novel modification of 17% EDTA with silver nanoparticles (AgNPs) (EDTA-AgNPs) was evaluated in-vitro for root canal treatment (RCT). The EDTA-AgNPs solution was characterized by UV-Vis spectroscopy, ?-potential and high-resolution transmission electron microscopy (HRTEM). Antimicrobial capacity was evaluated against Candida albicans and Staphylococcus aureus in planktonic and biofilm cells by broth macrodilution (24 h) and XTT assays, (1, 10 and 30 min) respectively. The chelating capacity of EDTA-AgNPs was assessed indirectly (smear layer removal) and directly (demineralizing effect) in bovine dentin at two silver concentrations, 16 and 512 ?g/ ml at 1 and 10 minutes of exposure time. Smear layer removal was evaluated by atomic force microscopy (AFM) and scanning electron microscopy (SEM). The demineralizing effect was determined by atomic absorption spectroscopy (AAS), microhardness test (MH) and X-ray diffractometer (XRD). Synthesized AgNPs were quasi-spherical in shape with an average size of 13.09 ± 8.05 nm. 17% EDTA-AgNPs was effective to inhibit C. albicans and S. aureus in planktonic and biofilm cultures. The smear layer removal and demineralizing effect were similar between 17% EDTA-AgNPs and 17% EDTA treatments. The 17% EDTA-AgNPs solution proved to be an effective antimicrobial agent, and has a similar chelating capacity to 17% EDTA alone. These in-vitro studies strongly suggest that EDTA-AgNPs could be used for effective smear layer removal, having an antimicrobial effect at the same time during RCT. © 2018 Martinez-Andrade et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

edetic acid, silver nanoparticle, edetic acid, metal nanoparticle, silver, antibacterial activity, antibiotic sensitivity, antifungal activity, antimicrobial activity, Article, atomic absorption spectrometry, atomic force microscopy, biofilm, bovine, BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA MICROBIOLOGÍA MICROBIOLOGÍA

Gráfica de protesta: PuntosB, Lapiztola y La Guillotina. Un análisis entre el cuerpo y el espacio en la imagen de protesta

Jorge Gabriel Ortiz Leroux (2023, [Capítulo de libro])

Capítulo número 5 de la Sección Imágenes y representaciones.

El objetivo del presente texto es el de mostrar como la obra emanada de colectivos de análisis del espacio social de la protesta, permite reconocer las claves que relacionan al espacio con los actores que lo ocupan. Asimismo, se pretende abordar cómo el conflicto que se interpone entre los actores de la protesta define sus magnitudes y reelabora sus disposiciones y sus formas de entrecruzamiento en relación con la presencia de la imagen. Asimismo, la representación imaginaria y visual del espacio permite ver a la ciudad como un laboratorio, que puede también ser registrado, interpretado y resituado respecto a los discursos hegemónicos. Los proyectos visuales que aquí abordamos representan un trabajo que a través de los años ha expresado su visión sobre las realidades sociales y políticas de nuestro país, en las que el conflicto aparece como telón de fondo de la creación e interpretación visual de esas realidades. La interacción entre política y estética tiene como escenario el espacio público y la ciudad, que fungen como trasfondo para la expresión de formas imaginarias y que conforman en sí mismas el sentido de los reclamos y las transformaciones gestadas. Mirando a la ciudad, observamos sus cambios y las formas de relación, cada vez más complejas, que se viven en ella.

Public spaces--Social aspects--Mexico. Dissident art. Protest movements--Mexico--Posters. Graphic arts--Political aspects--Mexico. Political posters, Mexican--20th century. Espacios públicos -- México. Arte disidente. Movimientos de protesta. Carteles políticos mexicanos. HT185 HUMANIDADES Y CIENCIAS DE LA CONDUCTA CIENCIAS DE LAS ARTES Y LAS LETRAS TEORÍA, ANÁLISIS Y CRÍTICA DE LAS BELLAS ARTES

Estudio de biomarcadores metabólicos en la piel relacionados con el envejecimiento en una población del noroeste de México

Study of metabolic biomarkers in the skin related to aging in a population from northwest Mexico

JHORDAN OJEDA GONZALEZ (2023, [Tesis de maestría])

La piel, siendo el órgano más grande, es fácilmente accesible para la obtención de muestras no invasivas. Esto convierte a la piel en una valiosa fuente de datos biológicos para la evaluación del estado de salud de los individuos. Sin embargo, la edad desempeña un papel central en casi todos los procesos humanos, y si no se tiene en cuenta adecuadamente, podría introducir sesgos al evaluar la condición de la piel. Por lo tanto, comprender cómo la edad afecta el metabolismo de la piel es crucial para crear perfiles del tipo y abundancia de metabolitos en diferentes etapas del desarrollo humano. Este estudio tuvo como objetivo identificar las diferencias metabólicas en la piel entre sujetos mexicanos de diferentes grupos de edad. Para lograrlo, se recolectaron muestras superficiales de piel (obtenidas mediante hisopos de algodón) de 75 pacientes con edades comprendidas entre 3 y 74 años. Los datos metabolómicos se obtuvieron a través de cromatografía líquida-espectrometría de masas en tándem (LC-MS2), mientras que la identificación de metabolitos y los análisis estadísticos se realizaron utilizando programas informáticos exhaustivos y complementarios (GNPS, Sirius, MZmine, Metaboanalyst, entre otros). Después de un extenso uso de herramientas quimioinformáticas, se identificaron de manera putativa 2,193 metabolitos (peptídicos y no peptídicos) de diversas clases químicas, como ácidos carboxílicos y sus derivados, acilos grasos, benceno y sus derivados sustituidos, compuestos organooxigenados, entre otros. Algunos metabolitos se cree que son sintetizados por bacterias. A través de un análisis de regresión logística con ajuste de covariables, identificamos varios metabolitos asociados positiva y negativamente con la edad, algunos de los cuales eran específicos para cada género. Los hallazgos de este trabajo incluyen la identificación de potenciales biomarcadores del envejecimiento como ciclo(Leu-Pro), destiobiotina, entre muchos otros, y también se proponen las principales clases químicas afectadas, como son azoles, diazinas y polipéptidos. En general, hemos contribuido a iluminar el panorama químico de la piel humana en una población mexicana, sugiriendo metabolitos que podrían funcionar potencialmente como biomarcadores de envejecimiento y enfermedades. No obstante, para validar nuestros hallazgos, se requieren estudios más amplios con grupos étnicos diversos y tamaños de muestra más grandes.

The skin, being the largest organ, is readily accessible for non-invasive sampling, making it a valuable source of biological data that could facilitate the assessment of individuals health status. However, age exerts a central role in nearly all human processes, and if not appropriately accounted for, it could introduce biases when assessing skin condition. Therefore, understanding how age affects skin metabolism is crucial for creating profiles of the types and abundances of metabolites across different stages of human development. This study aimed to uncover metabolic differences in the skin among Mexican subjects of different age groups. To achieve this, surface skin samples (collected via cotton swabs) were gathered from 75 patients spanning ages 3 to 74. Metabolomic data was obtained through liquid chromatography-tandem mass spectrometry (LC-MS2), while metabolite identification and statistical analyses were performed using comprehensive yet complementary software (GNPS, Sirius, MZmine, Metaboanalyst, among others). After an exhaustive use of comprehensive chemoinformatic tools, a total of 2,529 metabolites (peptidic and non-peptidic) were putatively identified covering diverse chemical classes, such as carboxylic acids and derivatives, fatty acyls, benzene and substituted derivatives, organooxygen compounds, among others. Some metabolites are thought to be synthesized by bacteria. Through logistic regression analysis and covariate adjustment, we identified several metabolites positively and negatively associated with age, some of which were gender specific. The findings of this study include the identification of potential aging biomarkers such as cyclo(Leu-Pro), dethiobiotin, among many others, and the proposal of the major affected chemical classes, including azoles, diazines, and polypeptides. Overall, we have contributed to illuminating the chemical landscape of human skin within a Mexican population, hinting at metabolites that could potentially function as aging and disease biomarkers. Nonetheless, to validate our findings, broader studies involving diverse ethnic groups and larger sample sizes are required.

Metabolómica, Espectrometría-de-masas, Quimioinformática, Envejecimiento-de-la-piel, Biomarcadores Metabolomics, Mass-Spectrometry, Chemoinformatics, Skin-aging, Biomarkers BIOLOGÍA Y QUÍMICA CIENCIAS DE LA VIDA OTRAS ESPECIALIDADES DE LA BIOLOGÍA OTRAS OTRAS

Variation in anther extrusion and its impact on fusarium head blight and deoxynivalenol content in oat (Avena sativa L.)

Xinyao He (2020, [Artículo])

Anther Extrusion Anther Retention Deoxynivalenol Fusarium Head Blight Spray Inoculation Spawn Inoculation CIENCIAS AGROPECUARIAS Y BIOTECNOLOGÍA VOMITOXIN INOCULATION ANTHERS FUSARIUM