A5061371296- Photosynthetic Processes and Mechanisms
- Spectroscopy and Quantum Chemical Studies
- Photoreceptor and optogenetics research
- Algal biology and biofuel production
- Microstructure and mechanical properties
- Microbial Community Ecology and Physiology
- Plant and animal studies
- Seaweed-derived Bioactive Compounds
- Intermetallics and Advanced Alloy Properties
- Genomics and Phylogenetic Studies
- Biocrusts and Microbial Ecology
- Tissue Engineering and Regenerative Medicine
- Proteoglycans and glycosaminoglycans research
- Porphyrin and Phthalocyanine Chemistry
- Rare-earth and actinide compounds
- Echinoderm biology and ecology
- Antioxidant Activity and Oxidative Stress
- Phytochemical and Pharmacological Studies
- Marine and coastal plant biology
- Heme Oxygenase-1 and Carbon Monoxide
- Vitamin C and Antioxidants Research
- Phytoestrogen effects and research
- Photochemistry and Electron Transfer Studies
- Electrospun Nanofibers in Biomedical Applications
- Nuclear Materials and Properties
Institute of Physics
2023-2024
Shenyang University of Chemical Technology
2023
Yantai Institute of Coastal Zone Research
2021-2023
Chinese Academy of Sciences
2020-2023
University of Science and Technology of China
2020-2023
University of Chinese Academy of Sciences
2021-2022
Ningbo University
2016-2020
Astaxanthin is a powerful antioxidant that possesses potent protective effects against various human diseases and physiological disorders. However, the mechanisms underlying its functions in cells are not fully understood. In present study, of astaxanthin on reactive oxygen species (ROS) production enzyme activity, as well mitogen-activated protein kinases (MAPKs), phosphatidylinositol 3-kinase (PI3K)/Akt, nuclear factor erythroid 2-related 2 (Nrf-2)/heme oxygenase-1 (HO-1) pathways...
Abstract The lifetime of electronic coherences found in photosynthetic antennas is known to be too short match the energy transfer time, rendering coherent mechanism inactive. Exciton-vibrational coherence time excitonic dimers which consist two chromophores coupled by excitation interaction, can however much longer. Uncovering for sustained a noisy biological environment challenging, requiring use simpler model systems as proxies. Here, via two-dimensional spectroscopy experiments, we...
Background. The dietary usage of carrageenan as common food additive has increased observably over the last 50 years. But there is substantial controversy about its safety. Methods. We investigated whether κ-carrageenan could enhance lipopolysaccharide-induced IL-8 expression by studying actions on TLR4-NF-κB pathway. aggravating effect Citrobacter freundii DBS100-induced intestinal inflammation was also in a mouse model. Results. Our data show that pretreatment promoted LPS-induced HT-29...
Phycocyanin 620 (PC620) is the outermost light-harvesting complex in phycobilisome of cyanobacteria, engaged light collection and energy transfer to core antenna, allophycocyanin. Recently, long-lived exciton–vibrational coherences have been observed allophycocyanin, accounting for coherent [Zhu et al., Nat. Commun. 15, 3171 (2024)]. PC620 has a nearly identical spatial location three α84–β84 phycocyanobilin pigment pairs those inferring an existence possible pathways. However, whether...
Cyanobacteria can acclimate to changing copper and iron concentrations in the environment via metal homeostasis, but a general mechanism for interpreting their dynamic relationships is sparse. In this study, we assessed growth chlorophyll fluorescence of Synechocystis sp. PCC 6803 investigated proteomic responses deductions. Results showed that exerted reciprocal effect on photosynthesis at combinations different concentrations. And some proteins involved uptake photosynthetic electron...
As the largest light-harvesting complex in cyanobacteria, phycobilisomes (PBSs) show high efficiency and a rate of energy transfer, owing to an elegant antenna-like assembly. To understand structural influence on dynamic process transfer PBSs, two cyanobacterium species Thermosynechococcus vulcanus NIES 2134 (T. 2134) Synechocystis sp. PCC 6803 (S. 6803) with different rod–core-linked assemblies were chosen for this study. The both PBSs was investigated through time-resolved fluorescence...
To gain a deeper understanding of the highly efficient mechanisms within photosynthetic bacterial reaction center (BRC), we have employed femtosecond broadband fluorescence spectroscopy to investigate dynamics initial photo-induced energy transfer and charge separation in BRC at room temperature. Benefiting from spectral coverage inherent this technique, two distinct transient emission species associated with bacteriochlorophylls B P are directly identified, Stokes shifts determined be ~197...
Abstract Coherent energy transfer is a highly efficient pathway in photosynthesis. Matching of long-lived quantum coherence to the time scale prerequisite 1–3 . In contrast short-lived electronic 4 , presence excitonic-vibronic photosynthetic systems 5,6 can account for observed long-lasting coherence. However, uncovering mechanism such within biological environment challenging because noise typically encountered at room temperature. This paper presents conclusive evidence existence vibronic...
Abstract Background Algae respond to chemical and environmental stimuli in a way similar higher plants. However, their receptors sensing remain mystery. Results We identified characterized one putative abscisic acid-G-protein coupled receptor homologous protein from red alga Pyropia haitanensis , Ph1205, analyzed its evolution relationship, subcellular localization, ligand-binding properties. Ph1205 contains 9 predicted transmembrane domains. Phylogenetic analysis revealed early evolution....
Phycobilisomes (PBSs) are the largest light-harvesting complex in cyanobacteria and red algae. To understand energy transfer dynamics phycobilisome, cyanobacterium, Thermosynechococcus vulcanus NIES 2134 (T. 2134), with a phycocyanin (PC) trimer PC612 linking rod core, was selected. The PBS from T. were studied via time-resolved fluorescence spectroscopy sub-picosecond resolution. pathways rates uncovered by deconvolution of decay curve. A fast time-component 10 ps to core slow 80 rods...