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How do trees fail in intraspecific competition? A test for the roles of non-structural carbohydrates and stoichiometries in Pinus massoniana.
Plant Physiol Biochem
January 2025
College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang, 310058, China. Electronic address:
Competition is ubiquitous and an important driver of tree mortality. Non-structural carbohydrates (NSCs, including soluble sugars and starch) and C-N-P stoichiometries are affected by the competitive status of trees and, in turn, physiologically determine tree growth and survival in competition. However, the physiological mechanisms behind tree mortality caused by intraspecific competition remain unclear.
View Article and Find Full Text PDFNeutral lipids restrict the mobility of broken DNA molecules during comet assays.
Biol Cell
January 2025
Centre de Recherche en Biologie cellulaire de Montpellier (CRBM), Université de Montpellier, Centre National de la Recherche Scientifique, Montpellier, France.
One widespread technique to assess in relative terms the amount of broken DNA present in the genome of individual cells consists of immobilizing the cell's nucleus under an agarose pad (called the nucleoid) and subjecting the whole genome to electrophoresis to force broken DNA molecules out of it. Since the migrating broken DNA molecules create a tail behind the nucleoid, this technique is named the comet assay. While performing comet assays regularly, we systematically observed circular regions devoid of DNA within the nucleoid region.
View Article and Find Full Text PDFWhen death is desired: A case of MAiD & the CL psychiatrist.
Palliat Support Care
January 2025
Department of Psychiatry, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
Objectives: Since physician-assisted dying (PAD) has become a part of the clinical dialogue in the United States (US) and other Western countries, it has spawned controversy in the moral, ethical, and legal realm, with significant cross-country variation. The phenomenon of PAD includes 2 practices: Euthanasia and medical aid in dying (MAiD). Although euthanasia has been allowed in different parts of the world, in the US it is illegal.
View Article and Find Full Text PDFChallenges and opportunities in organ donation after circulatory death.
J Intern Med
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Division of Transplantation Surgery, CLINTEC, Karolinska Institutet, Stockholm, Sweden.
In recent years, there has been resurgence in donation after circulatory death (DCD). Despite that, the number of organs transplanted from these donors remains low due to concerns about their function and a lack of an objective assessment at the time of donation. This overview examines the current DCD practices and the classification modifications to accommodate regional perspectives.
View Article and Find Full Text PDFLarval development and parasitism of emerald ash borer (Agrilus planipennis) in Oregon ash (Fraxinus latifolia) and European olive (Olea europaea): implications for the West Coast invasion.
J Econ Entomol
January 2025
Department of Entomology and Wildlife Ecology, University of Delaware, Newark, DE, USA.
The invasive emerald ash borer (Agrilus planipennis Fairmaire) (EAB) has been devastating North American ash (Fraxinus spp.) resources for over 2 decades. In its native range, EAB attacks and kills primarily stressed ash trees.
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