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Differential effects of warming on carbon budget, photosynthetic yield and biochemical composition of cold-temperate and Arctic isolates of Laminaria digitata (Phaeophyceae).
J Plant Physiol
January 2025
Department of Ecology, Faculty of Sciences, University of Málaga, Málaga, Spain.
Cold-temperate and Arctic hard bottom coastal ecosystems are dominated by kelp forests, which have a high biomass production and provide important ecosystem services, but are subject to change due to ocean warming. However, the photophysiological response to increasing temperature of ecologically relevant species, such as Laminaria digitata, might depend on the local thermal environment where the population has developed. Therefore, the effects of temperature on growth rate, biochemical composition, maximum quantum yield, photosynthetic quotient and carbon budget of young cultured sporophytes of Laminaria digitata from the Arctic at Spitsbergen (SPT; cultured at 4, 10 and 16 °C) and from the cold-temperate North Sea island of Helgoland (HLG; cultured at 10, 16 and 22 °C) were comparatively analyzed.
View Article and Find Full Text PDFSpectral analysis is a widely used method for monitoring photosynthetic capacity. However, vegetation indices-based linear regression exhibits insufficient utilization of spectral information, while full spectra-based traditional machine learning has limited representational capacity (partial least squares regression) or uninterpretable (convolution). In this study, we proposed a deep learning model with enhanced interpretability based on attention and vegetation indices calculation for global spectral feature mining to accurately estimate photosynthetic capacity.
View Article and Find Full Text PDFPolystyrene microplastics attenuated the impact of perfluorobutanoic acid on Chlorella sorokiniana: Hetero-aggregation, bioavailability, physiology, and transcriptomics.
J Hazard Mater
January 2025
Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Hohai University, Nanjing 210098, PR China; College of Environment, Hohai University, Nanjing 210098, PR China.
Microplastics (MPs) and perfluorobutanoic acid (PFBA), emerging contaminants, are ubiquitous in the environment and toxic to organisms. The interaction of MPs with other contaminants can affect their toxicity. However, the impact of MPs on PFBA toxicity remains unknown.
View Article and Find Full Text PDFSpectral comparison between diffuse PAR irradiance received under the shade of nine trees in different heights and a cloudy day in summer.
Photochem Photobiol
January 2025
Instituto COMAV, Edif. 8E, Acceso J, Ciudad Politécnica de la Innovación, Universitat, Politècnica de València, Valencia, Spain.
Spectral Solar Photosynthetically Photon Flux Density (PPFD) (380-780 nm) reaching the surface in different tree shade conditions and heights has been analyzed in order to better understand the different photosynthetic performance of plants depending on their spatial situation, the canopy density and height with respect to the floor. A comparison between the shadow of nine different trees in a sunny day and the case of a cloudy day in an open space has been studied. A poplar, laurel, amber tree, pine, olive tree, fir tree, cypress, elm tree and magnolia tree have been analyzed.
View Article and Find Full Text PDFInhibition mechanism of Microcystis aeruginosa in coculture of Lemna and Azolla: Insights from non-targeted Metabonomics.
Plant Physiol Biochem
January 2025
College of Life Sciences, Institute of Life Science and Green Development, Hebei University, Baoding, Hebei, China. Electronic address:
Microcystis aeruginosa, a harmful alga in cyanobacterial blooms, damages aquatic ecosystems. Species diversity may control the blooms by increasing ecosystem stability and resource utilization. The growth and photosynthetic systems of M.
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