Article
Plant Sciences
Emad A. Farahat, Holger Gartner
Summary: This study aims to evaluate the anatomical structure and dendrochronological potential of three Mediterranean desert shrubs in Egypt using X-ray density. The results showed distinct growth rings at macroscopic and microscopic levels, and the vessel traits reflected each species' adaptability to arid climate conditions. More efficient dendrochronological studies on subtropical and Mediterranean trees are recommended, including xylogenesis studies, collection of phenological data, sampling a sufficient number of trees per species, using new techniques, and choosing homogeneous and close sites for wood sampling.
FRONTIERS IN PLANT SCIENCE
(2023)
Review
Forestry
Arno Fritz das Neves Brandes, Yana Campos Rizzieri, Neusa Tamaio, Marcelo Rodrigo Pace, Claudia Franca Barros
Summary: Lianas play a critical role in ecosystem dynamics, and reliable methods for measuring their growth and age are needed. This study provides a comprehensive list of lianas with distinct growth ring markers, including species from both the north and southern hemispheres and different types of lianas. Thick-walled and/or radially flattened latewood fibers, semi-ring-porosity, marginal parenchyma, and ring-porosity were the main anatomical markers delimiting growth rings in lianas.
Article
Plant Sciences
E. Larysch, D. F. Stangler, H. Puhlmann, C. B. K. Rathgeber, T. Seifert, H-P Kahle
Summary: Hot droughts are expected to increase in Europe and affect forest ecosystem functioning. This study focused on the wood formation and anatomical characteristics of mature silver fir and Scots pine trees in the Black Forest during a hot drought year. The differentiation kinetics of tree cells were influenced by temperature and water availability, leading to a decline in woody biomass production. The growth processes of pioneer species and climax species were affected by different drought periods.
Article
Forestry
Pawel Matulewski, Agata Buchwal, Holger Gartner, Andrzej M. Jagodzinski, Katarina Cufar
Summary: This study provides important insights into wood anatomy and radial growth in tree roots, particularly regarding the effects of ecological factors and trampling on root growth. The study also identifies blue rings in tree roots for the first time. The findings highlight significant growth discrepancies within a single root system and present a new challenge for future dendroecological studies.
Article
Plant Sciences
Arturo Pacheco-Solana, Rose Oelkers, Rosanne D'Arrigo, Guaciara M. Santos, Milagros Rodriguez-Caton, Ernesto Tejedor, Eugenia Ferrero, Alfredo F. Fuentes, Carla Maldonado, Laia Andreu-Hayles
Summary: Scientists have successfully established the first verified tree-ring chronology for a new dendrochronological species, Neltuma alba, in the tropical Andes of Bolivia. By combining wood anatomical microsectioning techniques and radiocarbon analysis, they were able to identify missing tree rings and accurately date the specimens. This research highlights the potential to use wood anatomical methods and C-14 analyses to complement traditional dendrochronology in challenging tree species with complex ring boundaries.
FRONTIERS IN PLANT SCIENCE
(2023)
Article
Geosciences, Multidisciplinary
Carlos Castaneda-Posadas
Summary: This study describes and identifies permineralized wood fossils in the Miocene strata of Tlaxcala, Mexico. The presence of these fossils confirms the existence of the ecotone of the tropical montane cloud forest and the discovery of a new species.
JOURNAL OF SOUTH AMERICAN EARTH SCIENCES
(2023)
Article
Geochemistry & Geophysics
Sabrina G. K. Kudsk, Jesper Olsen, Gregory W. L. Hodgins, Mihaly Molnar, Todd E. Lange, Jessica A. Nordby, A. J. Timothy Jull, Tamas Varga, Christoffer Karoff, Mads F. Knudsen
Summary: An intercomparison project was conducted on 20 annually resolved late-wood samples from the Danish oak record among three laboratories, showing good agreement and reliability in the C-14 measurements. However, there may be underestimation of analytical uncertainties when compared to the observed differences from the geometric mean.
Article
Geography, Physical
Alan G. Hogg, Andrew M. Lorrey, Chris S. M. Turney, Jonathan G. Palmer, Gretel Boswijk, Pavla Fenwick
Summary: This paper presents the use of subfossil kauri wood for improving the resolution and accuracy of the calibration curve for Marine Isotope Stage 3 (MIS3). By analyzing data from several important subfossil kauri locations in New Zealand, the study shows the development of seven MIS3 kauri tree sequences, and discusses the prospects and limitations of obtaining a highly resolved and precise atmospheric radiocarbon calibration curve using subfossil kauri.
QUATERNARY GEOCHRONOLOGY
(2022)
Article
Geochemistry & Geophysics
Andrzej Z. Rakowski, Jacek Pawlyta, Hiroko Miyahara, Marek Krapiec, Mihaly Molnar, Damian Wiktorowski, Masayo Minami
Summary: The article presents the results of measuring radiocarbon concentration in English oak tree rings in southern Poland and confirms a prolonged increase in radiocarbon values during a specific time period. The study also suggests that this event may consist of two smaller events.
Article
Geochemistry & Geophysics
A. Quiles, S. Emerit, V Asensi-Amoros, L. Beck, I Caffy, E. Delque-Kolic, H. Guichard
Summary: Very little is known about the manufacturing and use of ancient Egyptian instruments, and their discovery is very rare. An extensive radiocarbon (C-14) dating program on 25 ancient Egyptian musical instruments held in the Louvre Museum and Lyon Museum of Fine Arts revealed that the instruments were made using a wide variety of wood materials, both indigenous and imported. The well-preserved objects span over 2500 years, shedding light on the craftsmanship of ancient Egyptian musical instruments.
Article
Geochemistry & Geophysics
Andrzej Rakowski, Marek Krapiec, Matthias Huels, Jacek Pawlyta, Damian Wiktorowski
Summary: This article presents measurements of the radiocarbon concentration in sub-annual tree rings and estimates the time period for a major historical event based on the Delta C-14 values.
Article
Geography, Physical
Helen M. Roberts, Christopher Bronk Ramsey, Melissa S. Chapot, Alan L. Deino, Christine S. Lane, Celine Vidal, Asfawossen Asrat, Andrew Cohen, Verena Foerster, Henry F. Lamb, Frank Schaebitz, Martin H. Trauth, Finn A. Viehberg
Summary: Dating a composite sediment core from Chew Bahir in south Ethiopia reveals a high-resolution lacustrine sediment record that spans the entire timescale of modern human evolution and dispersal, providing important insights into environmental change and hominin evolutionary adaptation.
QUATERNARY SCIENCE REVIEWS
(2021)
Article
Geochemistry & Geophysics
Fatima Pawelczyk, Irka Hajdas, Gino Caspari, Jegor Blochin, Timur Sadykov
Summary: The study conducted comparative research on the preparation methods of human and animal bones as well as wooden remains from the Tunnug 1 site in the Tuva Republic. The results confirmed a highly consistent chronology of the sites, centered at 200-400 CE, but also highlighted issues with dating poorly preserved bones and wood.
Article
Multidisciplinary Sciences
Arti Garg, Roxana T. Patrut, Adrian Patrut, Stephan Woodborne, Laszlo Rakosy
Summary: During recent field surveys, a new population of Ceylon iron wood was discovered in the Upper Ganga Ramsar Site, UP, India. The oldest dated extant M. hexandra was found in Narora, UP with a calculated age of 550 +/- 50 yr, but urgent protection measures are needed to prevent its total collapse due to partial damage in 2012.
Article
Biodiversity Conservation
P. Matulewski, A. Buchwal, A. Zielonka, D. Wronska-Walach, K. Cufar, H. Gartner
Summary: This study found that changes in radial growth and wood anatomy in tree roots are influenced by injuries and environmental pressure during hiking, which could have significant impacts on tree growth conditions.
ECOLOGICAL INDICATORS
(2021)
Article
Geography, Physical
Akhilesh K. Yadava, Achim Braeuning, Jayendra Singh, Ram R. Yadav
QUATERNARY SCIENCE REVIEWS
(2016)
Article
Geochemistry & Geophysics
S. Szymczak, M. M. Joachimski, A. Braeuning, T. Hetzer, J. Kuhlemann
Article
Environmental Sciences
Feng Shi, Bao Yang, Aurelien Mairesse, Lucien von Gunten, Jianping Li, Achim Braeuning, Fengmei Yang, Xia Xiao
Article
Geography, Physical
Minhui He, Bao Yang, Achim Braeuning, Jianglin Wang, Zhangyong Wang
Article
Plant Sciences
Julia Krepkowski, Aster Gebrekirstos, Olga Shibistova, Achim Braeuning
Article
Geochemistry & Geophysics
A. Scharf, A. Braeuning, W. Kretschmer, B. Wegner, F. Darragon
Article
Forestry
Minhui He, Bao Yang, Achim Braeuning
TREES-STRUCTURE AND FUNCTION
(2013)
Editorial Material
Forestry
Achim Braeuning
TREES-STRUCTURE AND FUNCTION
(2013)
Article
Agronomy
Mahmuda Islam, Mizanur Rahman, Achim Braeuning
AGRICULTURAL AND FOREST METEOROLOGY
(2019)
Article
Multidisciplinary Sciences
Bao Yang, Chun Qin, Achim Braeuning, Timothy J. Osborn, Valerie Trouet, Fredrik Charpentier Ljungqvist, Jan Esper, Lea Schneider, Jussi Griessinger, Ulf Buentgen, Sergio Rossi, Guanghui Dong, Mi Yan, Liang Ning, Jianglin Wang, Xiaofeng Wang, Suming Wang, Juerg Luterbacher, Edward R. Cook, Nils Chr Stenseth
Summary: This study presented a treering stable isotope chronology from the Tibetan Plateau to examine the variability of the Asian summer monsoon, identifying a megadrought in the second millennium BCE that significantly impacted the ecosystems and societies in northern China.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Multidisciplinary Sciences
Ulf Buentgen, Kathy Allen, Kevin J. Anchukaitis, Dominique Arseneault, Etienne Boucher, Achim Brauning, Snigdhansu Chatterjee, Paolo Cherubini, Olga Churakova (Sidorova), Christophe Corona, Fabio Gennaretti, Jussi Griessinger, Sebastian Guillet, Joel Guiot, Bjorn Gunnarson, Samuli Helama, Philipp Hochreuther, Malcolm K. Hughes, Peter Huybers, Alexander Kirdyanov, Paul J. Krusic, Josef Ludescher, Wolfgang J-H Meier, Vladimir S. Myglan, Kurt Nicolussi, Clive Oppenheimer, Frederick Reinig, Matthew W. Salzer, Kristina Seftigen, Alexander R. Stine, Markus Stoffel, Scott St George, Ernesto Tejedor, Aleyda Trevino, Valerie Trouet, Jianglin Wang, Rob Wilson, Bao Yang, Guobao Xu, Jan Esper
Summary: Tree rings are crucial for climate reconstructions in the Common Era, but the influence of methodological decisions on outcomes is not well understood. A double-blind experiment produced 15 different Northern Hemisphere summer temperature reconstructions, demonstrating the subjectivity in the reconstruction process. The ensemble reconstructions show a strong correlation with instrumental temperatures, revealing both cooling and warming trends over time.
NATURE COMMUNICATIONS
(2021)
Article
Agronomy
Rao-Qiong Yang, Pei-Li Fu, Ze-Xin Fan, Shankar Panthi, Jie Gao, Ying Niu, Zong-Shan Li, Achim Brauning
Summary: A better understanding of the growth-climate sensitivity of trees can reduce uncertainties in simulating forest carbon budgets. This study examined the spatial heterogeneity of Pinus yunnanensis and Pinus kesiya's growth-climate sensitivity in Southwest China. Results show that the growth of both pine species is positively correlated with precipitation and evaporative demand during the early growing season, while high precipitation and evaporative demand during the late growing season reduce tree growth. Additionally, the sensitivity of tree growth to temperature and moisture varied among the two species.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Letter
Multidisciplinary Sciences
Bao Yang, Chun Qin, Achim Braeuning, Timothy J. Osborn, Valerie Trouet, Fredrik Charpentier Ljungqvist, Jan Esper, Lea Schneider, Jussi Griessinger, Ulf Buentgen, Sergio Rossi, Guanghui Dong, Mi Yan, Liang Ning, Jianglin Wang, Xiaofeng Wang, Beixi Fan, Suming Wang, Juerg Luterbacher, Edward R. Cook, Nils Chr. Stenseth
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2022)
Article
Agronomy
S. Versace, A. Brauning, P. Cherubini, M. Di Febbraro, M. Hausser, F. Lombardi, M. Marchetti, P. A. Marziliano, F. Salbitano, S. Szymczak, R. Tognetti
Summary: Climate warming has increased the frequency and severity of drought events, negatively affecting tree radial growth in drought-prone regions like the Mediterranean. The growth responses of tree populations to climate change are influenced by tree age and local environment, leading to geographical patterns in tree growth and forest productivity. Intraspecific variability in sensitivity to drought events should be considered in predicting forest productivity responses to climate change.
AGRICULTURAL AND FOREST METEOROLOGY
(2022)
Article
Biodiversity Conservation
Sugam Aryal, Jussi Griessinger, Mohsen Arsalani, Wolfgang Jens-Henrik Meier, Pei-Li Fu, Ze-Xin Fan, Achim Braeuning
Summary: This study describes a statistical approach to remove the effects of Larch budmoth and climate on unbiased temperature reconstruction. The results show that removing the effect of LBM improves the growth-climate relationship and provides more reliable temperature reconstruction. There is a significant warming trend in the recent 50 years. The study also reveals the important impact of the Atlantic Multidecadal Oscillation on temperature reconstruction, with a coupled effect of the Pacific Decadal Oscillation.
ECOLOGICAL INDICATORS
(2023)
Article
Forestry
Lu-Ke Zhang, Ke-Cheng Zhu, Hua-Yang Guo, Bao-Suo Liu, Bo Liu, Nan Zhang, Dian-Chang Zhang
Summary: A new cell line derived from the muscle tissue of the golden pompano, called golden pompano muscle (GPM), has been successfully developed and characterized in this study. GPM cells exhibit fibroblast-like morphology and have a high proliferation rate in Leibovitz's L-15 medium supplemented with fetal bovine serum. The GPM cell line has been stable for over 80 generations and can be cryopreserved. It has been confirmed that the GPM cells used in this study are from the golden pompano based on molecular characterization and chromosome analysis. In addition, GPM cells are susceptible to red-spotted grouper nervous necrosis virus (RGNNV) and can be used for gene expression studies and viral pathogenesis research. The interaction between host and virus can also be investigated using this cell line.