Effects of IL1B single nucleotide polymorphisms on depressive and anxiety symptoms are determined by severity and type of life stress

Interleukin-1b is one of the main mediators in the cross-talk between the immune system and the central nervous system. Higher interleukin-1b levels are found in mood spectrum disorders, and the stressinduced expression rate of the interleukin-1b gene (IL1B) is altered by polymorphisms in the region. Therefore we examined the effects of rs16944 and rs1143643 single nucleotide polymorphisms (SNPs) within the IL1B gene on depressive and anxiety symptoms, as measured by the Brief Symptom Inventory, in a Hungarian population sample of 1053 persons. Distal and proximal environmental stress factors were also included in our analysis, namely childhood adversity and recent negative life-events. We found that rs16944 minor (A) allele specifically interacted with childhood adversity increasing depressive and anxiety symptoms, while rs1143643’s minor (A) allele showed protective effect against depressive symptoms after recent life stress. The genetic main effects of the two SNPs were not significant in the main analysis, but the interaction effects remained significant after correction for multiple testing. In addition, the effect of rs16944 A allele was reversed in a subsample with low-exposure to life stress, suggesting a protective effect against depressive symptoms, in the post hoc analysis. In summary, both of the two IL1B SNPs showed specific environmental stressor-dependent effects on mood disorder symptoms. We also demonstrated that the presence of exposure to childhood adversity changed the direction of the rs16944 effect on depression phenotype. Therefore our results suggest that it is advisable to include environmental factors in genetic association studies when examining the effect of the IL1B gene

Monitoring of soil variables across contrasting site and groundwater conditions in Kopcany, western Slowakia, 2018-2022

This dataset contains measurements of soil moisture, soil matric potential, soil temperature, groundwater depth, and throughfall from the study area of the project Dendromass4Europe. Three poplar SRC stands were selected according to a gradient of groundwater accessibility: S5-N (higher groundwater level), S4-D (low groundwater level), and S2-F (fluctuating groundwater level). On each of the selected sites one soil profile was excavated and prepared for the installation of soil sensors. The aim of the study was to determine the influence of meteorological and soil-related site conditions on tree transpiration rates in poplar SRC stands. Soil moisture was measured with frequency domain reflectometry (FDR) sensors, with 51 mm rods. Soil matric potential and soil temperature were measured with Tensiomark sensors of a length of 125 mm, with a ceramic head. The soil profiles were excavated on May 2018 and sensors were installed as follows: four pairs of sensors of soil moisture and matric potential at 0.3 m soil depth, three pairs at 0.6 m soil depth, and two pairs at 0.9 m soil depth. In the horizontal plane, the distance between sensors was 0.15 m; the distance between pairs was 0.3 m. At the site with fluctuating groundwater level (S2-F), at 0.9 m soil depth, high gravel content prevented the installation of matric potential sensors. On each site, a groundwater well was excavated at a distance of three meters from the soil pit. The fluctuations in groundwater level were recorded with a KELLER pressure sensor. Throughfall collectors were built at 1 m height above ground. The measurements started in June 2018 (in the case of fluctuations of groundwater level: December 2018) with a resolution of 15 minutes until middle of March 2020 (16.03.2020) and after that with a resolution of 60 minutes until end of May 2022 (31.05.2022)

Monitoring of sap flow in hybrid poplar (Populus deltoides Bart. Ex Marsh x P.nigra L. "AF2") across contrasting sites and groundwater conditions, Kopcany, western Slowakia, 2019-2021

This dataset contains measurements of sap flow from the study area of the project Dendromass4Europe. Three poplar SRC stands were selected according to a gradient of groundwater accessibility: S5-N (higher groundwater level), S4-D (low groundwater level), and S2-F (fluctuating groundwater level). On each of the selected sites four trees were selected according to the tree diameter at breast height distribution.The aim of the study was to quantify the water use of clone "AF2" on sites with contrasting groundwater conditions. For the sap measurements a SFM1 sap device (Heat Ratio Method) was used at 20-minutes resolution in 2019 and 30-minutes resolution in 2021. In 2019 the sensors were installed in April and the measurements were conducted throughout the growing season until end of September. In 2021, measurements started in July and concluded in September. No measurements were conducted in growing season 2020

Monitoring of sap flow, sap velocity, soil condition and meteorology in hybrid poplar plantations (Populus deltoides Bart. Ex Marsh x P.nigra L. "AF2") in Kopcany, western Slowakia, 2018-2022

The water use by short rotation coppices (SRC) has been a focus of ongoing research in the last decades. Nevertheless, investigations that consider site factors and present long-term monitoring of the components of the water balance are rare. This research quantified the tree-based transpiration in the 4th growing season of uncoppiced 1st rotational hybrid poplar stands (Populus deltoides Bart. ex Marsh × P. nigra L. “AF2”) in western Slovakia. The aim of the study was to determine the influence of meteorological and soil-related site conditions on transpiration rates. Three experimental plots were located in the Morava River floodplains, on loamy sand-textured soils with different groundwater accessibilities: higher, low, and fluctuating groundwater level. We measured sap flow (Heat Ratio Method), volumetric water content, matric potential, groundwater level, and meteorological variables throughout the growing season in 2019. The results indicated that transpiration in the three sites was almost constant during that period, which was characterized by distinct conditions. The average cumulative transpiration at the site with a higher groundwater level (1105 mm) was larger than at the site with a lower groundwater level (632 mm) and the site with fluctuating groundwater (863 mm). A principal component analysis (PCA) and correlation analysis identified that the contribution of meteorological and soil-related site variables to transpiration differed among the sites. Soil water availability and groundwater accessibility are critical variables for the water use of poplar SRC. We concluded that the combination of site conditions needs to be reconsidered for the expansion of sustainable short rotation plantations in Europe

Water Use of Hybrid Poplar (Populus deltoides Bart. ex Marsh × P. nigra L. “AF2”) Growing Across Contrasting Site and Groundwater Conditions in Western Slovakia

The water use by short rotation coppices (SRC) has been a focus of ongoing research in the last decades. Nevertheless, investigations that consider site factors and present long-term monitoring of the components of the water balance are rare. This research quantified the tree-based transpiration in the 4th growing season of uncoppiced 1st rotational hybrid poplar stands (Populus deltoides Bart. ex Marsh × P. nigra L. “AF2”) in western Slovakia. The aim of the study was to determine the influence of meteorological and soil-related site conditions on transpiration rates. Three experimental plots were located in the Morava River floodplains, on loamy sand-textured soils with different groundwater accessibilities: higher, low, and fluctuating groundwater level. We measured sap flow (Heat Ratio Method), volumetric water content, matric potential, groundwater level, and meteorological variables throughout the growing season in 2019. The results indicated that transpiration in the three sites was almost constant during that period, which was characterized by distinct conditions. The average cumulative transpiration at the site with a higher groundwater level (1105 mm) was larger than at the site with a lower groundwater level (632 mm) and the site with fluctuating groundwater (863 mm). A principal component analysis (PCA) and correlation analysis identified that the contribution of meteorological and soil-related site variables to transpiration differed among the sites. Soil water availability and groundwater accessibility are critical variables for the water use of poplar SRC. We concluded that the combination of site conditions needs to be reconsidered for the expansion of sustainable short rotation plantations in Europe

Monitoring of meteorological conditions in 30-min resolution in Kopcany, western Slowakia, 2018-2022

This dataset contains measurements of global radiation, precipitation, air temperature, relative humidity, air pressure, wind speed and wind direction from the study area of the project Dendromass4Europe. The aim of the study was to determine the influence of meteorological and soil-related site conditions on tree transpiration rates in poplar short rotation coppices plantations. In June 2018 a meteorological station was installed. The measurements started in June 2018 with a resolution of 30 minutes until end of May 2022 (31.05.2022). Three poplar SRC stands were selected according to a gradient of groundwater accessibility: S5-N (higher groundwater level), S4-D (low groundwater level), and S2-F (fluctuating groundwater level). On each of the selected sites one soil profile was excavated and prepared for the installation of soil sensors. The meteorological station was located southwest from the experimental sites. The distance from the meteorological station to the experimental sites was: 9.56 km to site S5-N (higher groundwater table), 9.82 km to site S4-D (low groundwater level), and 6.57 km to site S2-F (fluctuating groundwater table)