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The evolution and diurnal expression patterns of photosynthetic pathway genes of the invasive alien weed,Mikania micrantha

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Journal of Integrative Agriculture 2024年第2期23卷 590-604页

作者： Kangkang wang Mengjiao Jin Jingjing Li Yesong ren Zaiyuan Li Xinghai ren Cong Huang Fanghao wan wanqiang Qian Bo Liu Shenzhen Branch Guangdong Laboratory of Lingnan Modern Agriculture/Genome Analysis Laboratory of the Ministry of Agriculture and Rural AffairsAgricultural Genomics Institute at ShenzhenChinese Academy of Agricultural SciencesShenzhen 518120China State Key Laboratory of Crop Stress Adaptation and Improvement School of Life SciencesHenan UniversityKaifeng 475004China Shenzhen Research Institute of Henan University Shenzhen 518000China

Mikania micrantha is a fast-growing global invasive weed species that causes severe damage to natural ecosystems and very large economic losses of forest and crop *** has advantages in photosynthesis,including a similar net photosynthetic rate as C4 plants and a higher carbon fixation *** used a combination of genomics and transcriptomics approaches to study the evolutionary mechanisms and circadian expression patterns of *** ***,16 positive selection genes focused on photoreaction and utilization of *** different tissues,98.1%of the genes associated with photoresponse had high expression in stems,and more than half of the genes of the C4 cycle had higher expression in stems than in *** stomatal opening and closing,2 genes of carbonic anhydrase(CAs)had higher expression at 18:00 than at 8:00,and the slow anion channel 1(SLAC1)and high-leaf-temperature 1 kinase(HT1)genes were expressed at low levels at 18:*** addition,genes associated with photosynthesis had higher expression levels at 7:00 and 17:*** hypothesized that *** may undergo photosynthesis in the stem and flower organs and that some stomata of the leaves were opening at night by CO_(2)*** addition,its evolution may attenuate photoinhibition at high light intensities,and enhance more efficient of photosynthesis during low light *** the tissue-specific photosynthetic types and different diurnal pattern of photosynthetic-related genes may contribute to its rapid colonization of new habitats of ***.

关键词： invasion plant Mikania micrantha photosynthesis stomata stem

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Color coded metadevices toward programmed terahertz switching

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Light(Science & Applications) 2024年第7期13卷 1383-1392页

作者： Weibao He Xiang’ai Cheng Siyang Hu Ziheng ren Zhongyi Yu Shun wan Yuze Hu Tian Jiang College of Advanced Interdisciplinary Studies National University of Defense TechnologyChangshaChina. Nanhu Laser Laboratory National University of Defense TechnologyChangshaChina. Hunan Provincial Key Laboratory of High Energy Laser Technology National University of Defense TechnologyChangshaChina. Institute for Quantum Science and Technology College of ScienceNational University of Defense TechnologyChangshaChina

Terahertz modulators play a critical role in high-speed wireless communication,non-destructive imaging,and so on,which have attracted a large amount of research ***,all-optical terahertz modulation,an ultrafast dynamical control approach,remains to be limited in terms of encoding and *** we experimentally demonstrated an optical-programmed terahertz switching realized by combining optical metasurfaces with the terahertz metasurface,resulting in 2-bit dual-channel terahertz *** terahertz metasurface,made up of semiconductor islands and artificial microstructures,enables effective all-optical programming by providing multiple frequency channels with ultrafast modulation at the nanosecond ***,optical metasurfaces covered in terahertz metasurface alter the spatial light field distribution to obtain color *** to the time-domain coupled mode theory analysis,the energy dissipation modes in terahertz metasurface can be independently controlled by color excitation,which explains the principle of 2-bit encoding *** work establishes a platform for all-optical programmed terahertz metadevices and may further advance the application of composite metasurface in terahertz manipulation.

关键词： terahertz surface excitation

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Porous block copolymer films with self-adjustable optical transmittance and passive radiative cooling

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Nano Research 2024年第9期17卷 8472-8478页

作者： Xue Meng Weiming Tang Shuyun zhuo Jince Zhao Zixuan ren Zhonghe Sun Hao Yan Tianyi Zhao Ziguang Zhao Mingjie Liu School of Future Technology University of Chinese Academy of SciencesBeijing 100049China Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of EducationSchool of ChemistryBeihang UniversityBeijing 100191China

As an energy-free cooling technique,radiative cooling has garnered significant attention in the field of energy ***,traditional radiative cooling films often possess static optical properties and their inherent opacity limits their applications in building such as ***,there exists a requirement for passive radiative cooling films endowed with adjustable *** we report the porous block copolymer films with self-adjustable optical transmittance and passive radiative *** a result,the film exhibited a high solar reflectance(0.3-2.5μm)of 96.9%and a high infrared emittance(8-13μm)of 97.9%.Outdoor experiments demonstrated that the film surface temperature was 6.6℃lower than ambient temperature,with a cooling power of 104.8 W·m^(-2).In addition,the film’s transmittance can be regulated by altering the polarity of the post-processing solvent,providing an effective approach for regulating indoor light intensity and thermal balance,thereby enhancing the applicability of radiative cooling.

关键词： passive radiative cooling block copolymer porous structure self-adjustable optical transmittance

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Simultaneous enhancement of strength and ductility via microband formation and nanotwinning in an L1_(2)-strengthened alloy

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Fundamental Research 2024年第1期4卷 147-157页

作者： Lu Yang Dingshan Liang zhuo Cheng Ranxi Duan Chuanxin Zhong Junhua Luan Zengbao Jiao Fuzeng ren Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China Department of Mechanical Engineering The Hong Kong Polytechnic UniversityHong Kong 999077China

Metallic alloys with high strength and large ductility are required for extreme structural ***,the achievement of ultrahigh strength often results in a substantially decreased ***,we report a strategy to achieve the strength-ductility synergy by tailoring the alloy composition to control the local stacking fault energy(SFE)of the face-centered-cubic(fcc)matrix in an L1_(2)-strengthened superlattice *** a proof of concept,based on the thermodynamic calculations,we developed a non-equiatomic CoCrNi_(2)(Al_(0.2)Nb_(0.2))alloy using phase separation to create a near-equiatomic low SFE disordered CoCrNi medium-entropy alloy matrix with in situ formed high-content coherent Ni_(3)(Al,Nb)-type ordered nanoprecipitates(∼12 nm).The alloy achieves a high tensile strength up to 1.6 GPa and a uniform ductility of 33%.The low SFE of the fcc matrix promotes the formation of nanotwins and parallel microbands during plastic deformation which could remarkably enhance the strain hardening *** work provides a strategy for developing ultrahigh-strength alloys with large uniform ductility.

关键词： L1_(2)-strengthened superlattice alloy Stacking fault energy Nanotwins Microbands Strain hardening

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Discharge mode and particle transport in radio frequency capacitively coupled Ar/O_(2)plasma discharges

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Chinese Physics B 2024年第9期33卷 451-460页

作者： zhuo-Yao Gao wan Dong Chong-Biao Tian Xing-Zhao Jiang Zhong-Ling Dai Yuan-Hong Song Key Laboratory of Materials Modification by Laser Ionand Electron Beams(Ministry of Education)School of PhysicsDalian University of TechnologyDalian 116024China

Simulations are conducted on capacitively coupled Ar/O_(2)mixed gas discharges employing a one-dimensional fluid coupled with an electron Monte Carlo(MC)*** research explores the impact of different O_(2)ratio and pressures on the discharge characteristics of Ar/O_(2)*** a fixed Ar/O_(2)gas ratio,with the increasing pressure,higher ion densities,as well as a slight increase in electron density in the bulk region can be *** discharge remains dominated by the drift-ambipolar(DA)mode,and the flux of O(3P)at the electrode increases with the increasing pressure due to higher background gas density,while the fluxes of O(1D)and Ardecrease due to the pronounced loss *** the increasing proportion of O_(2),a change in the dominant discharge mode from a mode to DA mode can be detected,and the O_(2)-associated charged particle densities are significantly ***,Ar+density shows a trend of increasing and then decreasing,while for neutral fluxes at the electrode,Arflux decreases,and O(3P)flux increases with the reduced Ar gas proportion,while trends in O(1D)flux show slight *** evolution of the densities of the charged particle and the neutral fluxes under different discharge parameters are discussed in detail using the ionization characteristics as well as the transport ***,more comprehensive understanding of Ar/O_(2)discharge characteristics in this work will provide a valuable reference for the industry.

关键词： Ar/O_(2) mixed gas discharges electron dynamics transport of charged and neutral particles

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Light grazing alleviates aeolian erosion–deposition effects on microbial communities in a semi-arid grassland

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Ecological Processes 2024年第2期13卷 148-164页

作者： Mingming Cui Biqi Bao Yipu Wu Nan Hui Mai-He Li Shiqiang wan Shijie Han Feirong ren Junqiang Zheng International Joint Research Laboratory for Global Change Ecology School of Life Sciences Henan University Yellow River Floodplain Ecosystems Research Station School of Life Sciences Henan University School of Agriculture and Biology Shanghai Jiao Tong University Forest Dynam-ics Swiss Federal Institute for Forest Snow and Landscape Research WSL Key Laboratory of Geographical Processes and Ecological Security in Changbai Mountains Ministry of Education School of Geographical Sciences Northeast Normal University School of Life Science Hebei University

Background Soil erosion affects the stability of terrestrial ecosystems and ecosystem services by directly or indirectly impacting the cycling of soil materials and energy and reducing the fertility of grassland soils. However, research on microbial adaptation to grazing and soil erosion is limited, particularly in relation to grassland ecosystem restora-tion. Here, we assess microbial communities subjected to simulated soil erosion and grazing in a semi-arid grassland of Inner Mongolia, *** No significant change was observed in soil variables. However, the structure of the soil microbial commu-nity underwent significant changes as a result of soil erosion and soil erosion plus grazing, leading to a significant increase in the relative abundance of Cyanobacteria(116.80% vs 116.38%). Wind erosion and deposition contributed to an increase in the network complexity of soil bacterial and fungal communities. However, much of this effect was alleviated by grazing. Simultaneously, aeolian processes and grazing regulate soil microbial community assembly, leading to inconsistent patterns of change in bacterial and fungal communities. Under wind erosion and deposi-tion, the relative contribution of deterministic processes(4.44% vs 31.11%) in bacterial communities increased, while the relative contribution of stochastic processes(2.23% vs 20%) in fungal communities reduced. Grazing resulted in a decrease in the relative contribution of deterministic processes(8.89%) in the bacterial community and an increase in the relative contribution of stochastic processes(8.89%) in the fungal *** This study presents a comprehensive investigation of the response of soil microbial communities to aeolian erosion–deposition and grazing in a semi-arid grassland. Our findings indicate that microbial communities in the semi-arid grassland show resistance to external disturbances and that light grazing mitigates the effects of aeo-lian erosion–deposition on microbial co

关键词： Semi-arid grassland Erosion Grazing Soil microbial community network Deposition

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Author correction to‘3-O-Acetyl-11-keto-bboswellic acid ameliorated aberrant metabolic landscape and inhibited autophagy in glioblastoma’[Acta Pharm Sin B 10(2020)301-312]

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Acta Pharmaceutica Sinica B 2024年第8期14卷 3783-3784页

作者： wan Li Liwen ren Xiangjin Zheng Jinyi Liu Jinhua wang Tengfei Ji Guanhua Du The State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100050China Laboratory of Drug Target Research and Drug Screen Institute of Materia MedicaChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100050China

The authors apologize for two inadvertent mistakes in Fig.5:the image of immunofluorescence of LC3B in the Vehicle group(Fig.5c)and the image of transmission electron microscope in the AKBA 10 mmol/L group(Fig.5f)were provided *** corrected Fig.5 is shown *** original data of these figures have been provided to the Editorial Office,and the corresponding authors or the Editorial Office can be contacted for original data access.

关键词： correction Office image

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Low-noise and low-power pixel sensor chip for gas pixel detectors

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Nuclear Science and Techniques 2024年第3期35卷 142-152页

作者： zhuo Zhou Shi-Qiang Zhou Dong wang Xiang-Ming Sun Chao-Song Gao Peng-Zhen Zhu Wei-Ping ren Jun Liu Mu-Xian Li Chen Lian Chun-Lai Dong PLAC Key Laboratory of Quark and Lepton Physics(MOE)Central China Normal UniversityWuhan 430079China

Topmetal-M2 is a large-area pixel sensor chip fabricated using the GSMC 130 nm CMOS process in *** pixel array of Topmetal-M2 consists of pixels of 400 rows×512 columns with a pixel pitch of 45μm×45μ*** array is divided into 16 subarrays,with pixels of 400 rows×32 columns per *** pixel incorporates two charge sensors:a diode sensor and a Topmetal *** in-pixel circuit primarily consists of a charge-sensitive amplifier for energy measurements,a discriminator with a peak-holding circuit,and a time-to-amplitude converter for time-of-arrival *** pixel of Topmetal-M2 has a charge input range of~0-3 k e-,a voltage output range of~0-180 mV,and a charge-voltage conversion gain of~59.56μV∕e-.The average equivalent noise charge of Topmetal-M2,which includes the readout electronic system noise,is~43.45 e-.In the scanning mode,the time resolution of Topmetal-M2 is 1 LSB=1.25μs,and the precision is^()7.41μ*** an operating voltage of 1.5 V,Topmetal-M2 has a power consumption of~49 mW∕cm~*** this article,we provide a comprehensive overview of the chip architecture,pixel working principles,and functional behavior of ***,we present the results of preliminary tests conducted on Topmetal-M2,namely,alpha-particle and soft X-ray tests.

关键词： Charge collection Gas detectors Semiconductor detectors X-ray detectors

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Dietary curcumin alleviates intestinal damage induced by ochratoxin A in juvenile grass carp (Ctenopharyngodon idella): Necroptosis and inflammatory responses

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ANIMAL NUTRITION 2024年第3期18卷 119-132页

作者： Zhao, Piao Jiang, Wei-Dan Wu, Pei Liu, Yang ren, Hong-Mei Jin, Xiao-wan Feng, Lin Zhou, Xiao-Qiu Sichuan Agr Univ Anim Nutr Inst Chengdu 611130 Sichuan Peoples R China Sichuan Agr Univ Fish Nutr & Safety Prod Univ Key Lab Sichuan Prov Chengdu 611130 Sichuan Peoples R China Minist Agr & Rural Affairs Minist Educ Key Lab Anim Dis Resistance Nutr Key Lab Sichuan Prov Beijing 611130 Sichuan Peoples R China

Ochratoxin A (OTA) is one of the most common pollutants in aquatic feed. As a first line of defense, intestinal barriers could be utilized against OTA in order to prevent disorders. Natural product supplementation is one of the most popular strategies to alleviate toxicity induced by mycotoxins, but there is a lack of knowledge about how it functions in the teleost intestine. In this study, 720 juvenile grass carp of about 11 g were selected and four treatment groups (control group, OTA group, curcumin [Cur] group, and OTA + Cur group) were set up to conduct a 60-day growth test. After the test, the growth performance and intestinal health related indexes of grass carp were investigated. The addition of dietary Cur could have the following main results: (1) inhibit absorption and promote efflux transporters mRNA expression, reducing the residuals of OTA, (2) decrease oxidative stress by reducing oxidative damage and enhancing the expression of antioxidant enzymes, (3) promote mitochondrial fusion proteins to inhibit the expression of mitotic proteins and mitochondrial autophagy proteins and enhance mitochondrial function, (4) reduce necroptosis-related gene expression through inhibiting the tumor necrotic factor receptor-interacting protein kinase/mixed lineage kinase domain-like pathway, (5) reduce the expression of pro-inflammatory factors by inhibiting the Toll-like receptor 4/nuclear factor-kappa B signaling pathway to alleviate the intestinal inflammatory response. In summary, the results suggested that Cur could alleviate OTA-induced intestinal damage by enhancing antioxidant capacity and mitochondrial function as well as reducing necroptosis and inflammation in the grass carp intestine. This study provided a theoretical basis and production implications for dietary Cur that could improve growth performance and alleviate the intestinal damage induced by OTA in fish. (c) 2024 The Authors. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co.

关键词： Curcumin Ochratoxin A Grass carp growth performance Mid-intestine mitochondria function Necroptosis NF-KAPPA-B GROWTH-PERFORMANCE FISH METABOLISM TOXICITY EXPOSURE IMMUNITY MODEL

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Performance and enhanced oil recovery efficiency of an acid-resistant polymer microspheres of anti-CO2 channeling in low-permeability reservoirs

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Petroleum Science 2024年第4期21卷 2420-2432页

作者： Hai-Zhuang Jiang Hong-Bin Yang Ruo-Sheng Pan Zhen-Yu ren wan-Li Kang Jun-Yi Zhang Shi-Long Pan Bauyrzhan Sarsenbekuly State Key Laboratory of Deep Oil and Gas China University of Petroleum (East China) School of Petroleum Engineering China University of Petroleum (East China) Oil and Gas Engineering Research Institute School of Energy and Petroleum Industry Kazakh-British Technical University

CO2flooding is a vital development method for enhanced oil recovery in low-permeability reservoirs,However,micro-fractures are developed in low-permeability reservoirs,which are essential oil flow channels but can also cause severe CO2gas channeling ***,anti-gas channeling is a necessary measure to improve the effect of *** kind of anti-gas channeling refers to the plugging of fractures in the deep formation to prevent CO2gas channeling,which is different from the wellbore *** microspheres have the characteristics of controllable deep plugging,which can achieve the profile control of low-permeability fractured *** acidic environments with supercritical CO2,traditional polymer microspheres have poor expandability and plugging *** on previous work,a systematic evaluation of the expansion performance,dispersion rheological properties,stability,deep migration,anti-CO2channeling and enhanced oil recovery ability of a novel acid-resistant polymer microsphere（DCNPM-A） was carried out under CQ oilifield conditions（salinity of85,000 mg/L,80℃,pH=3）.The results show that the DCNPM-A microsphere had a better expansion performance than the traditional microsphere,with a swelling rate of *** microsphere dispersion with a concentration of 0.1%-0.5% had the advantages of low viscosity,high dispersion and good injectability in the low permeability fractured *** the acidic environment of supercritical CO2,DCNPM-A microspheres showed excellent stability and could maintain strength for over 60 d with less *** core experiments,DCNPM-A microspheres exhibited delayed swelling characteristics and could effectively plug deep *** a plugging rate of 95%,the subsequent enhanced oil recovery of CO2flooding could reach 21.03%.The experimental results can provide a theoretical basis for anti-CO2channeling and enhanced oil recovery in low-permeability fractured reservoirs.

关键词： Low-permeability reservoir Anti-CO 2 channeling Polymer microsphere Acid resistance

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