Person: Soba Hidalgo, David
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Soba Hidalgo
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David
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Ciencias
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IMAB. Research Institute for Multidisciplinary Applied Biology
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811354
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Publication Open Access Drought tolerance response of high-yielding soybean varieties to mild drought: physiological and photochemical adjustments(Wiley, 2019) Buezo Bravo, Javier; Sanz SĆ”ez, Ćlvaro; MorĆ”n Juez, JosĆ© Fernando; Soba Hidalgo, David; Aranjuelo Michelena, Iker; Esteban Terradillos, Raquel; Ciencias; Zientziak; Universidad PĆŗblica de Navarra / Nafarroako Unibertsitate PublikoaSoybean is a crop of agronomic importance that requires adequate watering during its growth to achieve high production. In this study, we determined physiological, photochemical and metabolic differences in five soybean varieties selected from the parental lines of a nested association mapping population during mild drought. These varieties have been described as high yielding (NE3001, HY1; LD01-5907, HY2) or drought tolerant (PI518751; HYD1; PI398881, HYD2). Nevertheless, there has been little research on the physiological traits that sustain their high productivity under water-limited conditions. The results indicate that high-yielding varieties under drought cope with the shortage of water by enhancing their photoprotective defences and invest in growth and productivity, linked to a higher intrinsic water use efficiency. This is the case of the variety N-3001 (HY1), with a tolerance strategy involving a faster transition into the reproductive stage to avoid the drought period. The present study highlights the role of the physiological and biochemical adjustments of various soybean varieties to cope with water-limited conditions. Moreover, the obtained results underscore the fact that the high phenotypic plasticity among soybean phenotypes should be exploited to compensate for the low genetic variability of this species when selecting plant productivity in constrained environments.Publication Open Access Foliar heavy metals and stable isotope (Ī“13C, Ī“15N) profiles as reliable urban pollution biomonitoring tools(Elsevier, 2021) Soba Hidalgo, David; GĆ”mez GuzmĆ”n, Angie Lorena; Ćriz, Naroa; Ruiz de Larrinaga, Lorena; GonzĆ”lez Murua, Carmen; Becerril, JosĆ© MarĆa; Esteban Terradillos, Raquel; Serret, Dolors; Araus, JosĆ© Luis; Aranjuelo Michelena, Iker; AgronomĆa, BiotecnologĆa y AlimentaciĆ³n; Agronomia, Bioteknologia eta ElikaduraAnthropogenic heavy metal pollution is an important health issue in urban areas, and therefore rapid and inexpensive monitoring in time and space is desirable. This study aimed (i) to assess the suitability of Tilia cordata leaves as a valuable heavy metal bioindicator, including seasonal changes in concentrations and (ii) to evaluate the use of leaf carbon and nitrogen isotope composition (Ī“13C and Ī“15N) as novel indicators of urban heavy metal pollution. Leaves were collected from three different pollution intensity locations (Bilbao, Vitoria, and Muskiz) in the Basque Country (northern Spain). Analysis of leaf heavy metals related to traffic emissions and Ī“13C and Ī“15N determinations were carried out during July-October 2018. Leaf samples from Bilbao, the most populated and traffic-intense location, showed the highest concentration of heavy metals (mainly from polluted air). Additionally, the two urban areas, Bilbao and Vitoria, showed stronger correlation between these heavy metals, indicating a traffic-related source of emissions. The source of contamination (soil or air) in relation to elements and optimal sampling time is discussed herein. On the other hand, Pearson correlation analysis revealed significant trends between leaf Ī“13C and Ī“15N and the studied heavy metals, especially Pb, Cr and Cd, supporting the hypothesis of Ī“13C and Ī“15N as tools to distinguish locations according to their heavy metal pollution levels. To our knowledge, this is the first time that Ī“13C and Ī“15N have been used as monitoring tools in heavy metal pollution and consequently more research is still needed to calibrate this tool through extensive vegetation screening.Publication Open Access Traffic restrictions during COVID-19 lockdown improve air quality and reduce metal biodeposition in tree leaves(Elsevier, 2022) Soba Hidalgo, David; GĆ”mez GuzmĆ”n, Angie Lorena; Becerril, JosĆ© MarĆa; Esteban Terradillos, Raquel; Aranjuelo Michelena, Iker; IdAB. Instituto de AgrobiotecnologĆa / Agrobioteknologiako InstitutuaThe coronavirus disease (COVID-19) has had a great global impact on human health, the life of people, and economies all over the world. However, in general, COVID-19Ā“s effect on air quality has been positive due to the restrictions on social and economic activity. This study aimed to assess the impact on air quality and metal deposition of actions taken to reduce mobility in 2020 in two different urban locations. For this purpose, we analysed air pollution (NO2, NO, NOx, SO2, CO, PM10, O3) and metal accumulation in leaves of Tilia cordata collected from April to September 2020 in two cities in northern Spain (Pamplona-PA and San SebastiĆ”n-SS). We compared their values with data from the previous year (2019) (in which there were no mobility restrictions) obtained under an identical experimental design. We found that metal accumulation was mostly lower during 2020 (compared with 2019), and lockdown caused significant reductions in urban air pollution. Nitrogen oxides decreased by 33%ā44%, CO by 24%ā38%, and PM10 by 16%ā24%. The contents of traffic-related metals were significantly reduced in both studied cities. More specifically, significant decreases in metals related to tyre and brake wear (Zn, Fe, and Cu) and road dust resuspension (Al, Ti, Fe, Mn, and Ca) were observed. With these results, we conclude that the main reason for the improvement in urban air pollutants and metals was the reduction in the use of cars due to COVID-19 lockdown. In addition, we offer some evidence indicating the suitability of T. cordata leaves as a tool for biomonitoring metal accumulation. This information is relevant for future use by the scientific community and policy makers to implement measures to reduce traffic air pollution in urban areas and to improve environmental and human health.