Article
Multidisciplinary Sciences
Kevin Nota, Jonatan Klaminder, Pascal Milesi, Richard Bindler, Alessandro Nobile, Tamara van Steijn, Stefan Bertilsson, Brita Svensson, Shun K. Hirota, Ayumi Matsuo, Urban Gunnarsson, Heikki Seppa, Minna M. Valiranta, Barbara Wohlfarth, Yoshihisa Suyama, Laura Parducci
Summary: Based on evidence from ancient sedimentary DNA and modern population genomics, the authors provide support for the recolonization of Fennoscandia by Norway spruce shortly after the last glaciation, with migration from the east during the early Holocene.
NATURE COMMUNICATIONS
(2022)
Article
Biotechnology & Applied Microbiology
Zhi-Qiang Chen, Adam Klingberg, Henrik R. Hallingbaeck, Harry X. Wu
Summary: Genomic prediction is a method to predict the accumulative effect of all quantitative trait loci in a population by estimating the genomic relationships between individuals and capturing the linkage disequilibrium. Using QTLs detected in a GWAS can improve the accuracy and predictive ability of genomic prediction.
Article
Forestry
Petter Ohrn, Mats Berlin, Malin Elfstrand, Paal Krokene, Anna Maria Jonsson
Summary: In 2018, a significant number of Norway spruce trees were killed by the spruce bark beetle in Sweden, due to severe drought stress rather than the availability of defenseless storm-felled trees. The outbreak continued in 2019 and 2020, with twice as many trees killed each year as in 2018. The study aimed to quantify the seasonal variation and potential lag-effects in tree defense capacity following severe drought stress. Inoculation with a bark beetle-associated bluestain fungus showed that tree defense capacity correlated positively with cumulative precipitation levels two months before inoculation.
FOREST ECOLOGY AND MANAGEMENT
(2021)
Article
Forestry
Olli-Pekka Tikkasalo, Kersti Leppa, Samuli Launiainen, Mikko Peltoniemi, Raisa Makipaa, Katja T. Rinne-Garmston, Elina Sahlstedt, Giles H. F. Young, Aleksandra Bokareva, Annalea Lohila, Mika Korkiakoski, Pauliina Schiestl-Aalto, Aleksi Lehtonen
Summary: This study investigated the physiological response of suppressed trees when larger trees are removed as part of continuous cover forestry (CCF) practices. The researchers collected tree-ring samples from Norway spruce trees and measured changes in stable carbon and oxygen isotopic ratios of the wood to quantify the harvest response. The study found that the model predicted a similar but lower harvest response compared to the measurements, and considering mesophyll conductance was important for capturing the variation in carbon discrimination. Sensitivity analysis on the model indicated that carbon discrimination was sensitive to parameters related to CO2 transport through stomata to the mesophyll.
Article
Forestry
Roberts Matisons, Didzis Elferts, Oskars Krisans, Volker Schneck, Holger Gartner, Tomasz Wojda, Jan Kowalczyk, Aris Jansons
Summary: The abundance of Norway spruce in the Eastern Baltic region is predicted to decrease due to climate change, with uncertainties regarding growth potential due to the plasticity of local populations. Weather-growth relationships for the tree species are mainly influenced by summer moisture regime, with both linear and non-linear growth responses observed across the climatic gradient from Southern Finland to Northern Germany. Linear weather-growth relationships were found to be spatially and temporally non-stationary, with exceptions in Poland and Northern Germany.
Article
Plant Sciences
Katja Schoss, Nina Kocevar Glavac, Samo Kreft
Summary: This study investigated the composition and abundance of essential oil and hydrosol from Norway spruce needles and branches. The results showed that the relative amounts of monoterpenes, sesquiterpenes, and diterpenes in the essential oil varied significantly throughout the year. The composition of the hydrosol samples was also affected by season.
Article
Plant Sciences
Yury Ivanov, Ilya E. Zlobin, Alexander Kartashov, Alexandra I. Ivanova, Valery P. Ivanov, Sergey Marchenko, Dmitry Nartov, Vladimir V. Kuznetsov
Summary: The deterioration of plant mineral nutrition during drought negatively affects plant performance. This study examined the effects of seasonal and multiyear water shortages on nutrient supply and demand in Scots pine and Norway spruce. The results showed that water shortage increased the wood concentrations of all elements except for Mn. Similar patterns of changes were found in needles between species, with Mg increasing and Fe and Mn decreasing under water shortage. Photosynthetic pigments and lipid peroxidation products were not correlated with element dynamics in needles.
Article
Forestry
Saila Varis, Mikko Tikkinen, Jaanika Edesi, Tuija Aronen
Summary: Somatic embryogenesis is the most effective method for propagating Norway spruce, and the initiation success and cryopreservation are influenced by the cone collection date. The PaLAR3B allele does not interfere with the process. Ideally, Norway spruce cones should be collected in southern Finland in early July and cold-stored for five days or less before initiation.
Article
Plant Sciences
Samuel W. Wilkinson, Lars S. Dalen, Thomas O. Skrautvol, Jurriaan Ton, Paal Krokene, Melissa H. Mageroy
Summary: Treating Norway spruce with methyl jasmonate can enhance the tree's resistance to pests and this resistance lasts for a long time. This study found that methyl jasmonate treatment induces a transient upregulation of genes associated with jasmonic acid, salicylic acid, and ethylene biosynthesis, while repressing genes related to growth in Norway spruce.
PLANT CELL AND ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Jiri Korecky, Jaroslav Cepl, Jan Stejskal, Zuzana Faltinova, Jakub Dvorak, Milan Lstiburek, Yousry A. El-Kassaby
Summary: The study revealed distinct genetic structure differences between different ecotypic groups of Norway spruce at different elevations, with the high-elevation group showing a unique genetic cluster. Therefore, caution should be exercised in the artificial transfer of forest reproductive material, especially for stands under harsh climate conditions.
SCIENTIFIC REPORTS
(2021)
Article
Forestry
Giuseppe D'Andrea, Vaclav Simunek, Maria Castellaneta, Zdenek Vacek, Stanislav Vacek, Osvaldo Pericolo, Rosa Giada Zito, Francesco Ripullone
Summary: The forests of Norway spruce in Europe, one of the most economically important tree species, are facing disruption and rapid decline due to natural factors such as drought, heatwaves, and bark beetle outbreaks. This study conducted in the central Czech Republic aimed to determine the relationship between remotely sensed characteristics of vegetation (using NDVI) and annual tree-ring growth. However, no significant correlation between NDVI and annual ring width was observed.
Article
Agronomy
Tobias Walter Miller, Dominik Florian Stangler, Elena Larysch, Harald Honer, Thomas Seifert, Heike Puhlmann, Georg von Arx, Patrick Fonti, Marina V. Fonti, Cyrille B. K. Rathgeber, Hans-Peter Kahle
Summary: Climate change is expected to have significant impacts on European forests. This study compares the intra-annual growth dynamics of Douglas fir, silver fir, and Norway spruce in changing climate conditions. The results show that Douglas fir has higher cell production rates and a longer wood formation season, making it a potential alternative to the climate-change-endangered Norway spruce.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Forestry
Vasilije Trifkovic, Andrej Boncina, Andrej Ficko
Summary: In this study, the influences of various stand, site, and climatic factors on tree recruitment in uneven-aged forests were explored. It was found that stand structure, including stand basal area and the proportion of tree species, was the most important factor affecting recruitment. Soil pH and rockiness were important for fir recruitment, while decadal precipitation and temperature played significant roles in beech and spruce recruitment. Furthermore, the optimal and critical ranges of these factors differed among the species.
FOREST ECOLOGY AND MANAGEMENT
(2023)
Article
Plant Sciences
Tuija Aronen, Susanna Virta, Saila Varis
Summary: Studies have shown that stress factors during somatic embryogenesis initiation can lead to telomere shortening in Norway spruce. The length of telomeres in embryogenic tissues (ETs) and embryos remains stable up to one year of culture but shows genotypic variation. Successful cryopreservation treatment can preserve telomere length, while prolonged in vitro culture may lead to telomere shortening.
Article
Plant Sciences
Lucie Fischerova, Lenka Gemperlova, Milena Cvikrova, Ildiko Matusikova, Jana Moravcikova, Zuzana Gersi, Jiri Malbeck, Jan Kuderna, Jana Pavlickova, Vaclav Motyka, Katerina Eliasova, Zuzana Vondrakova
Summary: In Norway spruce, the germination capacity and subsequent embryo development of somatic embryos are strongly influenced by the desiccation phase after maturation. Desiccation at 100% relative humidity significantly increases the germination capacity of embryos, while reducing the humidity has a negative effect on embryo development. The biosynthesis of polyamines and the activity of cell wall-modifying enzymes are regulated by water availability during desiccation. Some physiological characteristics can be used as markers of inappropriate humidity during somatic embryo desiccation.
FRONTIERS IN PLANT SCIENCE
(2022)
Article
Public, Environmental & Occupational Health
Carmen Anthonj, Bernd Diekkrueger, Christian Borgemeister, Thomas Kistemann
INTERNATIONAL JOURNAL OF HYGIENE AND ENVIRONMENTAL HEALTH
(2019)
Article
Geosciences, Multidisciplinary
Jean Hounkpe, Bernd Diekkrueger, Abel A. Afouda, Luc Olivier Crepin Sintondji
Article
Environmental Sciences
Felix Op de Hipt, Bernd Diekkrueger, Gero Steup, Yacouba Yira, Thomas Hoffmann, Michael Rode, Kristian Naeschen
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
Geofrey Gabiri, Constanze Leemhuis, Bernd Diekkrueger, Kristian Naeschen, Stefanie Steinbach, Frank Thonfeld
SCIENCE OF THE TOTAL ENVIRONMENT
(2019)
Article
Environmental Sciences
Kristian Naeschen, Bernd Diekkrueger, Constanze Leemhuis, Larisa S. Seregina, Roderick van der Linden
Article
Green & Sustainable Science & Technology
Kristian Naeschen, Bernd Diekkruegre, Mariele e Evrs, Britta Hoellermann, Stefanie Steinbach, Frank Thonfeld
Article
Forestry
Burkhard Neuwirth, Inken Rabbel, Joerg Bendix, Heye R. Bogena, Boris Thies
Summary: The European heat wave of 2018 brought about dry and hot conditions in many parts of central and northern Europe, significantly impacting plant life, especially trees. A study comparing the responses of spruce and oak trees in Western and Central-Western Germany during this heat wave revealed that while spruce trees completed their growth activities early, oaks intensified their activities based on water content in their stems.
Article
Biodiversity Conservation
Christoph Schneider, Burkhard Neuwirth, Sebastian Schneider, Daniel Balanzategui, Stefanie Elsholz, Daniel Fenner, Fred Meier, Ingo Heinrich
Summary: This study used dendroclimatological techniques to investigate the sensitivity of different tree species in inner city of Berlin to the urban heat island. The results showed that urban trees are more sensitive to climate compared to rural trees, with deciduous species being sensitive to summer heat and drought, while conifer species are suitable for analysis in late winter and early spring. Urban trees can be used for climate response analyses and provide new pathways for tracing urban climate change, specifically the urban heat island.
Article
Green & Sustainable Science & Technology
O. U. Charlene Gaba, Yae Ulrich Gaba, Bernd Diekkrueger
Summary: This paper suggests comparing past climate projections with observational data as a different approach to complement classical methods. The study conducted in West Africa reveals significant differences between projections and observations, with close connection to the chosen scenarios. The implications of these differences on sustainable development in the region are considered important.
Article
Water Resources
Claudia Schepp, Bernd Diekkrueger, Mathias Becker
Summary: This study aims to understand the generation and routing of interflow in wetlands in East Africa and its contribution to water and nitrate availability. The results showed that interflow volumes and nitrate transport were strongly influenced by land-use type and rainfall characteristics.
Article
Water Resources
Mouhamed Idrissou, Bernd Diekkrueger, Bernhard Tischbein, Felix Op de Hipt, Kristian Naeschen, Thomas Pomeon, Yacouba Yira, Boubacar Ibrahim
Summary: This study investigates the impacts of climate and land use/land cover change on water resources in an inland valley catchment in Burkina Faso. The results show a large uncertainty in future runoff changes due to climate change, and land use change exacerbates the increase in total runoff. This study highlights the importance of considering land use change in assessing the impact of climate change.
Article
Water Resources
Mouhamed Idrissou, Bernd Diekkrueger, Bernhard Tischbein, Boubacar Ibrahim, Yacouba Yira, Gero Steup, Thomas Pomeon
Article
Meteorology & Atmospheric Sciences
Geofrey Gabiri, Bernd Diekkrueger, Kristian Naeschen, Constanze Leemhuis, Roderick van der Linden, Jackson-Gilbert Mwanjalolo Majaliwa, Joy Apiyo Obando
Article
Geosciences, Multidisciplinary
Stefan Schroeder, Anne Springer, Juergen Kusche, Bernd Uebbing, Luciana Fenoglio-Marc, Bernd Diekkrueger, Thomas Pomeon
HYDROLOGY AND EARTH SYSTEM SCIENCES
(2019)
Article
Meteorology & Atmospheric Sciences
Aymar Yaovi Bossa, Jean Hounkpe, Yacouba Yira, Georges Serpantie, Bruno Lidon, Jean Louis Fusillier, Luc Olivier Sintondji, Jerome Ebagnerin Tondoh, Bernd Diekkrueger