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Climate change and epigenetics: Unraveling the role of methylation in response to thermal instability in the Antarctic plant Colobanthus quitensis.
Physiol Plant
January 2025
Centro de Ecología Integrativa (CEI), Instituto de Ciencias Biológicas, Universidad de Talca, Talca, Chile.
Low temperatures are one of the critical conditions affecting the performance and distribution of plants. Exposure to cooling results in the reprogramming of gene expression, which in turn would be mediated by epigenetic regulation. Antarctica is known as one of the most severe ecosystems, but several climate models predict an increase in average temperature, which may positively impact the development of Antarctic plants; however, under warmer temperatures, plants' vulnerability to damages from low-temperature events increases.
View Article and Find Full Text PDFThe effects of teleconnections on water and carbon fluxes in the two South America's largest biomes.
Sci Rep
January 2025
Vale Institute of Technology, Sustainable Development, Belém, Pará, Brazil.
Ecosystem services provided by terrestrial biomes, such as moisture recycling and carbon assimilation, are crucial components of the water, energy, and biogeochemical cycles. These biophysical processes are influenced by climate variability driven by distant ocean-atmosphere interactions, commonly referred to as teleconnections. This study aims to identify which teleconnections most significantly affect key biophysical processes in South America's two largest biomes: The Amazon and Cerrado.
View Article and Find Full Text PDFSurvey of foodborne pathogenic Vibrio species in commercial Tasmanian bivalve shellfish and predictors of risk at harvest.
Int J Food Microbiol
December 2024
Institute for Marine and Antarctic Studies, University of Tasmania, 15-21 Nubeena Crescent, Taroona, Tasmania 7053, Australia.
There has been an increase in foodborne vibriosis outbreaks globally, with Vibrio parahaemolyticus emerging as a foodborne issue in temperate commercial shellfish growing regions, including southern Australia. The food safety concerns associated with these microorganisms have led to the need for specific guidance on potential risk management strategies for their control. This is the first Australian multi-seasonal survey of V.
View Article and Find Full Text PDF21 century surface UV radiation changes deduced from CMIP6 models: part I-evolution of major influencing factors.
Photochem Photobiol Sci
January 2025
Institute of Meteorology and Climate Research Atmospheric Trace Gases and Remote Sensing, Karlsruhe Institute of Technology, Karlsruhe, Germany.
For a given solar elevation, the levels of solar ultraviolet radiation at the Earth's surface are determined by the amounts of ozone, aerosols, and clouds, as well as by the reflectivity of the surface. Here, we study the evolution of these factors for three selected decades in the period 1950-2100 using results from simulations with Earth-System models (ESMs) participating in the 6 phase of the Coupled Model Intercomparison Project (CMIP6). The simulations for the future are based on three Shared Socioeconomic Pathways: SSP1-2.
View Article and Find Full Text PDFRadiocarbon monoxide indicates increasing atmospheric oxidizing capacity.
Nat Commun
January 2025
National Institute of Water and Atmospheric Research (NIWA), 301 Evans Bay Parade, Wellington, 6021, New Zealand.
Hydroxyl (OH) is the atmosphere's main oxidant removing most pollutants including methane. Its short lifetime prevents large-scale direct observational quantification. Abundances inferred using anthropogenic trace gas measurements and models yield conflicting trend estimates.
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