Results 51 to 60 of about 29,854 (219)

Classification and clustering analysis of standing dead trees and associated park asset wildfire vulnerability in Yellowstone National Park

Forest Ecosystems
In the Rocky Mountain and Pacific Northwest regions of the United States, forests include extensive portions of standing dead trees. These regions showcase an intriguing phenomenon where the combined biomass of standing dead trees surpasses that of ...
Carolyn Prescott, Mehmet Ozdes, Di Yang
doaj   +1 more source

Snag dynamic in a mixed Beech forest [PDF]

تحقیقات جنگل و صنوبر ایران, 2010
Dead tree, which consisting of both standing dead tree and material that has fallen to the ground, is a dynamic resource in forest ecosystem. In order to investigate on falling and dynamic model of snags (standing dead trees) in a mixed beech forest ...
Kiomars Sefidi, Mohammad Reza Marvie Mohadjer   +1 more
doaj  

Wood Decay Characteristics and Interspecific Interactions Control Bacterial Community Succession in Populus grandidentata (Bigtooth Aspen)

Frontiers in Microbiology, 2019
Few studies have investigated bacterial community succession and the role of bacterial decomposition over a continuum of wood decay. Here, we identified how (i) the diversity and abundance of bacteria changed along a chronosequence of decay in Populus ...
Eiko E. Kuramae, Marcio F. A. Leite, Afnan K. A. Suleiman, Christopher M. Gough, Buck T. Castillo, Lewis Faller, Rima B. Franklin, John Syring   +7 more
doaj   +1 more source

Dysbiosis in the Rhizosphere Microbiome of Standing Dead Korean Fir (Abies koreana)

Plants, 2022
The Korean fir (Abies koreana), a native coniferous tree species mainly found on Mt. Halla in Jeju, South Korea, is suffering from continuous population decline and has been declared an endangered species.
G. Han, Mohamed Mannaa, Hyoseong Jeon, Hyejung Jung, Jin-Cheol Kim, A. Park, Y. Seo   +6 more
semanticscholar   +1 more source

Longitudinal genome‐wide aneuploidy measurements in circulating cell‐free DNA to predict lack of benefit from pembrolizumab in patients with metastatic urothelial cancer

Molecular Oncology, EarlyView.
Many patients with urothelial cancer do not benefit from treatment with pembrolizumab, while at risk of severe side effects. Changes in the levels of circulating tumor DNA early during treatment, measured by a simple and affordable assay that can be easily implemented in the clinic, can be used as a prognostic tool to identify these patients.
Youssra Salhi, Stavros Makrodimitris, Sandra van Wilpe, Iris te Paske, Vanja de Weerd, Corine M. Beaufort, Hans M. Westgeest, Jens Voortman, Maureen J. B. Aarts, Maud Rijnders, Astrid A. M. van der Veldt, Ronald de Wit, Niven Mehra, Saskia M. Wilting, Debbie G. J. Robbrecht   +14 more
wiley   +1 more source

Precipitation and wood type determines stem and soil greenhouse gas fluxes in a subtropical forest

Frontiers in Plant Science
Research on greenhouse gas (GHG) fluxes has predominantly focused on subtropical soils, with far less attention given to emissions from tree stems. In particular, year-long simultaneous measurements of both soil and tree stem fluxes in these forests are ...
Guanghui Yang, Wanchen Xu, Wanyu Ning, Men Jia, Pei Wang, Yuanqiu Liu, Yuanqiu Liu, Chunsheng Wu   +7 more
doaj   +1 more source

Tree mortality in a Pinus sylvestris dominated boreal forest landscape in Vienansalo wilderness, eastern Fennoscandia

Silva Fennica, 2002
Tree mortality and its causes and spatial pattern were examined along four transects (width 40 m, length 2550–3960 m), with a total length of 12 190 m and area of 48.8 ha, in a Pinus sylvestris L. dominated, boreal forest landscape.
Rouvinen, Seppo, Kuuluvainen, Timo, Siitonen, Juha   +2 more
doaj   +1 more source

MITF maintains genome stability in nonmelanocyte lineages

Molecular Oncology, EarlyView.
MITF is essential for melanocyte survival and acts as an oncogene in 10%–20% of melanomas. We show that MITF depletion causes genome instability in nonmelanocytic cells, leading to LATS2‐mediated P53 activation, cell cycle arrest, and apoptosis. This study highlights the role of MITF as a genome maintenance factor beyond the melanocyte lineage. Created
Drifa H. Gudmundsdottir, Adrián López García de Lomana, Thejus B. Venkatesh, Kritika Kirty, Snaevar Sigurdsson, Linda Vidarsdottir, Ramile Dilshat, Erla Sveinbjornsdottir, Snaedis Ragnarsdottir, Daniel H Magnusson, Maria R. Bustos, Eirikur Steingrimsson, Thorkell Gudjonsson, Stefan Sigurdsson   +13 more
wiley   +1 more source

Belowground community turnover accelerates the decomposition of standing dead wood.

Ecology, 2021
Standing dead trees (snags) decompose more slowly than downed dead wood and provide critical habitat for many species. The rate at which snags fall therefore influences forest carbon dynamics and biodiversity.
M. Bradford, D. Maynard, Thomas W. Crowther, Paul T. Frankson, J. Mohan, Corinna Steinrueck, Ciska G F Veen, J. R. King, R. Warren   +8 more
semanticscholar   +1 more source

Single‐cell DNA methylation profiling: Technologies, computation, and applications in precision oncology

Molecular Oncology, EarlyView.
Single‐cell DNA methylation (scDNAme) profiling maps epimutational clonal evolution, revealing mechanisms of malignancy and therapeutic resistance across diverse cancer types. By providing a high‐resolution landscape of intratumoral heterogeneity, these technologies empower precise patient stratification, guide the development of enhanced ...
Ik Soo Kim
wiley   +1 more source