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Uncoupling of nutrient metabolism and cellular redox by cytosolic routing of the mitochondrial G-3-P dehydrogenase Gpd2 causes loss of conidiation and pathogenicity in Pyricularia oryzae

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Journal of Integrative Agriculture 2025年第2期24卷 638-654页

作者： Wenqin Fang Yonghe Hong Tengsheng Zhou Yangdou Wei Lili Lin Zonghua Wang Xiaohan Zhu State Key Laboratory of Ecological Pest Control for Fujian and Taiwan Crops College of Plant ProtectionFujian Agriculture and Forestry University Fuzhou Institute of Oceanography Minjiang University Department of Biology College of Arts and ScienceUniversity of Saskatchewan Department of Plant science University of Manitoba

Oxidation of self-stored carbohydrates and lipids provides the energy for the rapid morphogenetic transformation during asexual and infection-related development in Pyricularia oryzae,which results in intracellular accumulation of reducing equivalents NADH and FADH2,requiring a cytosolic shuttling machinery towards *** previous studies identified the mitochondrial D-lactate dehydrogenase MoDld1 as a regulator to channel the metabolite flow in conjunction with redox ***,the regulator（s） facilitating the cytosolic redox balance and the importance in propelling nutrient metabolite flow remain *** G-3-P shuttle is a conserved machinery transporting the cytosolic reducing power to *** ***,the mitochondrial G-3-P dehydrogenase Gpd2 was required for cellular NAD+/NADH balance and fungal *** this study,we relocate the mitochondrial G-3-P dehydrogenase Gpd2 to the cytosol for disturbing cytosolic redox *** results showed overexpression of cytosolic gpd2Δmtswithout the mitochondrial targeted signal （MTS） driven by Ribosomal protein 27 promoter （PR27） exerted conflicting regulation of cellular oxidoreductase activities compared to theΔModld1 deletion mutant by RNA-seq and prevented the conidiation and pathogenicity of ***,overexpression of gpd2Δmtscaused defects in glycogen and lipid mobilization underlying asexual and infectious structural development associated with decreased cellular NADH production and weakened anti-oxidation ***-seq and non-targeted metabolic profiling revealed down-regulated transcriptional activities of carbohydrate metabolism and lower abundance of fatty acids and secondary metabolites in RP27:gpd2Δ***,our studies indicate the essential role of cytosolic redox control in nutrient metabolism fueling the asexual and infection-related development in ***.

关键词： Pyricularia oryzae mitochondrial G-3-P dehydrogenase NAD + /NADH balance fungal virulence mitochondrial targeted signal

Effects of rare-earth Pr^(3+)-Dy^(3+)doping on structural,magnetic,optical and dielectric properties of Zn_(2)Y hexaferrite

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Journal of Rare Earths 2025年第2期43卷 329-336,I0004页

作者： Ibrahim Mohammed Mohamed E.El Sayed Ali Shawabkeh Mohammad N.Murshed Ibtehaj F.Alshdoukhi Zeinhom M.El-Bahy J.Mohammed A.K.Srivastava Department of Physics Lovely Professional UniversityPhagwara14411PunjabIndia Department of science Technology Waziri Umaru Federal Polytechnic Birnin KebbiPM.B 1034Birnin KebbiKebbiNigeria Physics Department Faculty of Science and ArtsKing Khalid UniversityMuhayl AsserSaudi Arabia college of Engineering and Technology American University of the Middle East.Kuwait Department of Basic sciences College of Science and Health ProfessionsKing Saud Bin Abdulaziz University for Health ScienceKing Abdullah International Medical Research CenterRiyadhSaudiArabia Department of Chemistry Faculty of ScienceAl-Azhar UniversityNasr City11884CairoEgypt Department of Physics Faculty of ScienceFederal University DutseP.M.B.7156DutseJigawaNigeria

This study was conducted to investigate the properties of Pr^(3+)-Dy^(3+)doped Zn_(2)Y-type hexaferrite for potential technological applications.X-ray diffraction(XRD),Fourier transform infrared spectroscopy(FTIR)and field-emission scanning electron microscopy(FESEM)were used to analyze structural *** crystallite size in the synthesized samples varies between 57.54 and 68.57 *** vibrational bands at 400 and 600 cm^(-1),common to all hexaferrites,were confirmed through *** FESEM analysis reveals an agglomeration of magnetic grains and a decrease in the average grain size from 1.24 to1.06μ*** M-H loops show that,with x values of 0.0,0.1,and 0.2,the saturation magnetization is determined to be 34.76,34.23,and 32.52 emu/g,*** corresponding coercivity values are21.24,30.39,and 33.99 ***-visible spectroscopy using Tauc theory reveals an increase in the optical band gap from 2.32 to 2.50 eV,indicating a tunable energy band structure by incorporating Pr^(3+)-Dy^(3+)*** dielectric constant increases,whereas AC conductivity decreases with increased Pr^(3+)-Dy^(3+)*** obtained results suggest the potential suitability of these materials for various technological applications.

关键词： Zn_(2)Y-type hexaferrite Pr^(3+)-Dy^(3+) Magnetic hysteresis Optical band gap Dielectric constant Rare earths

Improving cutoff frequency estimation via optimized π-pulse sequence

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Chinese Physics B 2025年第1期34卷 273-278页

作者： Wang-Sheng Zheng Chen-Xia Zhang Bei-Li Gong School of Electrical Engineering Guangxi UniversityNanning 530004China Faculty of science and Technology College of Arts and Sciences of Hubei Normal UniversityHuangshi 435109China

The cutoff frequency is one of the crucial parameters that characterize the environment. In this paper, we estimate the cutoff frequency of the Ohmic spectral density by applying the π-pulse sequences(both equidistant and optimized)to a quantum probe coupled to a bosonic environment. To demonstrate the precision of cutoff frequency estimation, we theoretically derive the quantum Fisher information(QFI) and quantum signal-to-noise ratio(QSNR) across sub-Ohmic,Ohmic, and super-Ohmic environments, and investigate their behaviors through numerical examples. The results indicate that, compared to the equidistant π-pulse sequence, the optimized π-pulse sequence significantly shortens the time to reach maximum QFI while enhancing the precision of cutoff frequency estimation, particularly in deep sub-Ohmic and deep super-Ohmic environments.

关键词： environment parameters estimation quantum Fisher information optimized p-pulse sequence

2D CaWO4 nanosheets derived from scheelite minerals for enhanced electrocatalysis in oxygen evolution reaction

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science China Chemistry 2025年

作者： Qing Sun Yongxiang Sun Yan Dong Hong Zhong Hongbo Zeng National&Local United Engineering Laboratory for New Petrochemical Materials&Fine Utilization of Resources College of Chemistry and Chemical EngineeringHunan Normal University Department of Chemical and Materials Engineering University of Alberta college of Chemistry and Materials Engineering Hunan University of Arts and Science college of Chemistry and Chemical Engineering Central South University

Scheelite （CaWO4） mineral holds promise as a cost-effective and efficient catalyst for the oxygen evolution reaction （OER）crucial in renewable energy ***,challenges such as limited active site exposure and low electrocatalytic performance need *** this work,we have fabricated two-dimensional （2D） CaWO4nanosheets from scheelite minerals via a straightforward ultrasonic exfoliation method and evaluated their efficacy as OER *** to scheelite powders,these 2D nanosheets exhibited superior crystallinity and a 1.26-fold increase in electrochemical surface area,promoting active site *** 2D CaWO4nanosheet electrode demonstrated outstanding OER catalytic performance,achieving a current density of 20 mA/cm2at an overpotential of 290 m V in alkaline conditions,which was lower than that of bulk CaWO4electrodes （～340 mV）.Density functional theory calculations attributed this enhanced catalytic performance to moderate adsorption of oxygenated intermediates （*OH,*O,and*OOH） on the W sites of 2D *** situ electrochemical atomic force microscopy tests also confirmed the catalytic enhancement by 2D CaWO4nanosheets during *** findings demonstrate the potential of affordable and abundant mineral resources in advancing electrochemical catalysts for oxygen evolution,highlighting their broader application in sustainable energy technologies.

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The deflection angle and quasi-periodic oscillations of an extended gravitational decoupled black hole solution

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Communications in Theoretical Physics 2025年第2期77卷 132-147页

作者： Farzan Mushtaq Xia Tiecheng Allah Ditta G Mustafa S K Maurya Department of Mathematics Shanghai University and Newtouch Center for Mathematics of Shanghai University Department of Physics Zhejiang Normal University Research Center of Astrophysics and Cosmology Khazar University Department of Mathematical and Physical sciences College of Arts and Sciences University of Nizwa

In weak field limits, we compute the deflection angle of a gravitational decoupling extended black hole(BH) solution. We obtained the Gaussian optical curvature by examining the null geodesic equations with the help of Gauss–Bonnet theorem(GBT). We also looked into the deflection angle of light by a black hole in weak field limits with the use of the Gibbons–Werner method. We verify the graphical behavior of the black hole after determining the deflection angle of light. Additionally, in the presence of the plasma medium, we also determine the deflection angle of the light and examine its graphical behavior. Furthermore, we compute the Einstein ring via gravitational decoupling extended black hole solution. We also compute the quasi-periodic oscillations and discuss their graphical behavior.

关键词： deflection of light Gauss-Bonnet theorem gravitational decoupling

Analyzing the Cytotoxic and Genetic Impact of Datura stramonium Extract on MCF7 and HT29 Cancer Cells:A Metabolite and Gene Expression Study

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Phyton-International Journal of Experimental Botany 2025年第1期94卷 181-198页

作者： Fayez Althobaiti Hadeer Darwish Raghad Alruqayb Saqer S.Alotaibi Fahad E.Alharthi Ibrahim Jafri Sarah Awwadh Altalhi Ghadi Alsharif Hussam Awwadh E Althagafi Hesham Noureldeen Sarah Alharthi Jawaher Albaqami Najla Amin T.Al Kashgry Ahmed Noureldeen Department of Biotechnology College of ScienceTaif UniversityTaif21944Saudi Arabia Department of Biology College of ScienceTaif UniversityTaif21944Saudi Arabia Department of Clinical Laboratory sciences College of Applied Medical SciencesKing Saud Bin Abdulaziz University for Health SciencesJeddah21423Saudi Arabia Department of Biomedical Research King Abdullah International Medical Research CenterJeddah21423Saudi Arabia Biology Department Faculty of Science and ArtsAl-Baha UniversityAl-Mikhwah65731Saudi Arebia Faculty of Medicine Mansoura UniversityMansoura35516Egypt Department of Chemistry Collage of ScienceTaif UniversityTaif21944Saudi Arabia

The interest in using the Datura stramonium plant is due to its natural products,which are used in many pharmaceutical *** objective of the current study was to assess the therapeutic and cytotoxic effects of the *** plant on two types of human cancer cell models(MCF7 and HT29)in vitro.A soxhlet apparatus was used to obtain methanolic extract from dried plant *** recovered crude,after the solvent had evaporated,was then dispersed at varied concentrations of extract 100,50,20,and 0.0µg/mL and tested to see how the cells ***,the cancer-testis antigen(CTA)gene transcription in the two cell types exposed to the plant extract was examined using a semi-quantitative real-time polymerase chain *** chromatography–mass spectrometry(GC-MS)results produced the significant main metabolites Nonanoic acid,Tropine N-Oxide,3,6-Ditigloyloxy-7-hydroxytropane,Hexadecanoic acid,2-Pentadecanone,6,10,14-trimethyl-,Carvenone,methyl ester,Phytol,Aposcopolamine,Hyoscyamine,4,8,12,16-Tetramethylheptadecan-4-olide,Scopolamine,Alpha.-Tocospiro A,1,2-Cycloheptanedione,3,3,7,7-tetramethyl-,dihydrazone,Campesterol,Stigmasterol,Gamma-Sitosterol and dl-.alpha.-*** results showed that the two types of cell lines impacted by *** extract,through untreated type 1 cells(MCF7)gave a highly significant transcription according to all applicable *** implemented analyses cleared the strong genetic impacts of Datura extract on cancer cells’***2LY and C2orf63 transcript accumulation were also significantly elevated when exposed to plant extract at a level of 50µg/mL in cell line type 2(HT29),but TGIF2LY and P53 had the lowest relative expression at a level of 100µg/mL when treated the same cell line type.

关键词： Datura stramonium secondary metabolites GC-MS analysis cytotoxicity breast and colon cancer cell lines MTT assay

Structural,dielectric and magnetic properties of terbium doped strontium spinel ferrite(SrFe_(2)O_(4))synthesized by sol-gel method

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Journal of Rare Earths 2025年第2期43卷 337-344,I0004页

作者： Rifat Shaheen Hafeez Ullah M.M.Moharam Ahmad M.Saeedi Ebraheem Abdu Musad Saleh Muhammad Ijaz Adel A.El-Zahhar Gamil A.A.M.Al-Hazmi Sana Ullah Asif Hafiz Muhammad Tahir Institute of Physics Gomal UniversityDera Ismail Khan29220KPPakistan Department of Chemistry College of Arts and SciencesPrince Sattam Bin Abdulaziz UniversityWadi Al-Dawasir11991Saudi Arabia Chemical and Electrochemical Processing Department Central Metallurgical Research and Development Institute(CMRDI)PO.Box 87Helwan11421Egypt Department of Physics Faculty of Applied ScienceUmm AL-Qura UniversityMakkah24382Saudi Arabia Department of Chemistry College of ScienceKing Khalid UniversityP.0.Box 9004Abha61413Saudi Arabia School of Materials and Energy Yunnan UniversityKunming650091China Department of Physics Govt.Graduate college Taunsa Sharif32100Pakistan

In this research work,sol-gel technique was employed to prepare the strontium based spinel ferrite nanoparticles(SrFe_(2)O_(4))with different ratios of terbium(Tb).Different characterization techniques were used to investigate the structural,morphological,dielectric and magnetic properties of the prepared samples.X-ray diffraction(XRD)result suggests that face-centered cube spinel nanocrystalline structure is *** size of the SrFe_(2)O_(4)decreases with rising of Tb *** morphology,shape and size of the SrFe_(2)O_(4)were examined by scanning electron microscopy(SEM)analysis and results reveal inhomogeneous distributions of the nanostructures with high *** electrical resistivity of the SrFe_(2)O_(4)increases with rising of Tb ratio,which is confirmed from the cyclic *** is observed that dielectric constant of all the samples decreases with the increasing frequency *** is determined that the dielectric constants of the spinel ferrites are frequency dependent and decrease with increasing the frequency of applied electric *** magnetic behavior of SrFe_(2)O_(4)with different ratios of Tb was studied and it is found that the saturation magnetization values of samples decrease with increase in the substitution of Tb^(3+)at octahedral sites for Fe^(3+).This decrease in the values of M_(s) is also attributed to spin at surface of nanoparticles.

关键词： Sol-gel Structural properties Dielectric properties Magnetic properties Spinel ferrites Rare earths

Self-reporting hypoxia-responsive supramolecular phototheranostic nanomaterials based on AIEgen and azocalixarene

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关键词： Hypoxia is a significant feature in most of solid tumors. Hence, developing hypoxia-responsive phototheranostic system is still a challenge. In this contribution, a supramolecular assembly strategy based on sulfonate-functionalized azocalixarene(SAC4A)and cationic aggregation-induced emission photosensitizer(namely TPA-H) was proposed for hypoxia-responsive bioimaging and photodynamic therapy(PDT). Upon supramolecular complexation of TPA-H and SAC4A through electrostatic interaction,the fluorescence and reactive oxygen species(ROS) generation of TPA-H were largely inhibited. In hypoxic tumors, the azo group of SAC4A can be reduced to aniline derivative and release the included TPA-H to recover its pristine fluorescence and ROS. Interestingly, the free TPA-H undergoes cell membrane-to-mitochondria translocation during cell imaging, achieving a real-time self-reporting PDT system. In vivo tumor imaging and therapy reveal that this as-prepared supramolecular complexes have good biosafety and efficient antitumor activity under hypoxia. Such hypoxia-responsive supramolecular photosensitizer system will enrich image-guided photodynamic therapy.

science China Chemistry 2025年

作者： Xiao-Wen Han Guo-Ling Zhang Pu Chen Jing Zhang Guo-Gang Shan Chun-Xuan Qi Ben-Zhong Tang Hai-Tao Feng AIE Research Center Shaanxi Key Laboratory of Phytochemistry College of Chemistry and Chemical Engineering Baoji University of Arts and Sciences National & Local United Engineering Laboratory for Power Batteries Department of Chemistry Northeast Normal University School of science and Engineering Shenzhen Institute of Aggregate Science and Technology The Chinese University of Hong KongShenzhen (CUHK-Shenzhen)

Hypoxia is a significant feature in most of solid tumors. Hence, developing hypoxia-responsive phototheranostic system is still a challenge. In this contribution, a supramolecular assembly strategy based on sulfonate-functionalized azocalix[4]arene(SAC4A)and cationic aggregation-induced emission photosensitizer(namely TPA-H) was proposed for hypoxia-responsive bioimaging and photodynamic therapy(PDT). Upon supramolecular complexation of TPA-H and SAC4A through electrostatic interaction,the fluorescence and reactive oxygen species(ROS) generation of TPA-H were largely inhibited. In hypoxic tumors, the azo group of SAC4A can be reduced to aniline derivative and release the included TPA-H to recover its pristine fluorescence and ROS. Interestingly, the free TPA-H undergoes cell membrane-to-mitochondria translocation during cell imaging, achieving a real-time self-reporting PDT system. In vivo tumor imaging and therapy reveal that this as-prepared supramolecular complexes have good biosafety and efficient antitumor activity under hypoxia. Such hypoxia-responsive supramolecular photosensitizer system will enrich image-guided photodynamic therapy.

Biofilmed-PGPR:Next-Generation Bioinoculant for Plant Growth Promotion in Rice under Changing Climate

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Rice science 2025年第1期32卷 94-106,I0059,I0060页

作者： Jeberlin Prabina BRIGHT Hemant SMAHESHWARI Sugitha THANGAPPAN Kahkashan PERVEEN Najat ABUKHARI Debasis MITRA Riyaz SAYYED Andrea MASTINU Department of Soil science and Agricultural Chemistry Agricultural College and Research InstituteTamil Nadu Agricultural UniversityKillikulam 628252India Indian Council of Agricultural Research(ICAR)-Indian Institute of Soybean Research Indore 452001India Karunya Institute of Technology and sciences School of Agricultural SciencesKarunya NagarCoimbatore 641114India Department of Botany&Microbiology College of ScienceKing Saud UniversityRiyadh-11495Saudi Arabia Department of Microbiology Graphic Era(Deemed to be University)Clement TownDehradun 248002India Department of Biological sciences and Chemistry College of Arts and ScienceUniversity of NizwaNizwa 616Sultanate of Oman Department of Molecular and Translational Medicine Division of PharmacologyUniversity of BresciaBrescia 25123Italy

The exopolysaccharide matrix of diazotrophic cyanobacteria was used to integrate phosphorus(P)and potassium(K)solubilizing bacteria,enhancing the survival of plant growth-promoting rhizobacteria,and ultimately the survival of bacteria in the rhizosphere for better plant growth.A new biofilm-based formulation comprising the diazotrophic cyanobacteria Anabaena AMP2,P-solubilizing Bacillus megaterium *** PB1,and K-solubilizing Rhizobium pusense KRBKKM1 was tested for efficacy in *** growth medium with half-strength BG-11 medium supplemented with 3%glucose showed best for biofilm formation under in vitro *** of the methanolic extract of the cyanobacterial-bacterial biofilm(CBB)showed the activity of antioxidants,such as 2-methoxy phenol and pentadecane,which are proven to improve plant-microbe interactions and plant growth,*** of rice seeds with CBB extract at 100 mL/kg or 200 mL/kg showed significant enhancement in germination rate and seedling ***,a pot culture experiment with the CBB formulations was carried out,and different growth and yield parameters were *** component analysis showed that plant growth,yield,soil dehydrogenase activity,and soil chlorophyll content were positively correlated with rice plants amended with vermiculite-based CBB at 2 kg/hm^(2) followed by a spray with aqueous CBB formulation at 5 mL/L at 15 and 30 d after rice transplanting grown with a 25%reduced level of nitrogen/phosphorus/potassium chemical fertilizers than the recommended ***,Pearson correlation analysis showed that yield was positively correlated with soil dehydrogenase(r=0.92**)and soil chlorophyll content(r=0.96**).We concluded that CBB could be used as a novel biofilm-based bio-inoculant to increase rice productivity and crop fitness as a component in integrated nutrient management and sustainable organic farming strategies with reduced chemical fertilizers.

关键词： cyanobacterial bacterial biofilm formulation rice volatile compound plant growth promotion reduced fertilizer level