Influence of methyl jasmonate during white mustard sprouting

[SPA] En los últimos años se ha experimentado un notable interés en los germinados de semillas por ser productos muy nutritivos y saludables, siendo incluso más ricos en compuestos beneficiosos para la salud que la planta desarrollada como es el caso de las crucíferas. El presente trabajo estudia el efecto del metil jasmonato (MJ), como elicitor químico, durante la germinación de brotes de mostaza en condiciones de ciclo de luz normal y oscuridad. Los germinados CTRL presentaron la mayor longitud de hipocótilo tanto bajo condiciones de luz (6,31 cm) como de oscuridad (9,51 cm), mientras que las diferentes concentraciones de MJ supusieron una disminución, siendo mayores bajo la condición de luz. El porcentaje de germinación en el CTRL fue del 97,3% tanto en condiciones de luz y oscuridad mientras que con MJ disminuyeron hasta valores de 93,5-95% en condición de oscuridad. Mientras, que en condiciones de luz se mantuvo constante. Según estos datos preliminares, el MJ no influyó significativamente en la productividad, siendo por tanto muy interesante su estudio como estrés abiótico para potenciar los compuestos bioactivos en futuros ensayos. [ENG] In recent years there has been a notable interest in sprouts for being very nutritious and healthy products. The sprouts are richer in bioactive compounds than the developed plant. The propose of this work was to study the effect of methyl jasmonate (MJ), as a chemical elicitor, during the germination of mustard seeds under the normal light and dark conditions. The CTRL sprouts had the longest hypocotyl length under both light (6.31) and dark (9.51 cm) conditions, while the different concentrations of MJ resulted in a decrease of the hypocotyl length, being greater under the light condition. The percentage of germination in the CTRL was 97.3% in both light and dark conditions while with MJ they tended to decrease to values of 93.5-95% in dark condition. However, the germination percentage remained constant in light conditions. According to these preliminary data, MJ did not significantly influence in the productivity, being therefore very interesting its study as abiotic stress to enhance bioactive compounds in future trials.Se agradece la financiación a la Comunidad Autónoma de la Región de Murcia a través del Programa Regional de Fomento de la Investigación Científica y Técnica de la Fundación Séneca-Agencia de Ciencia y Tecnología de la Región de Murcia (Proyecto Ref 20849/PI/18). Se agradece igualmente al Ministerio de Economía y Competitividad la concesión de un contrato predoctoral a Noelia Castillejo (FPU/04763)

Global data set of long-term summertime vertical temperature profiles in 153 lakes

peer reviewedClimate change and other anthropogenic stressors have led to long-term changes in the thermal structure, including surface temperatures, deepwater temperatures, and vertical thermal gradients, in many lakes around the world. Though many studies highlight warming of surface water temperatures in lakes worldwide, less is known about long-term trends in full vertical thermal structure and deepwater temperatures, which have been changing less consistently in both direction and magnitude. Here, we present a globally-expansive data set of summertime in-situ vertical temperature profiles from 153 lakes, with one time series beginning as early as 1894. We also compiled lake geographic, morphometric, and water quality variables that can influence vertical thermal structure through a variety of potential mechanisms in these lakes. These long-term time series of vertical temperature profiles and corresponding lake characteristics serve as valuable data to help understand changes and drivers of lake thermal structure in a time of rapid global and ecological change. © 2021, The Author(s)