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Effects of dissolved oxygen on intestinal bacterial community and immunity of Atlantic salmon Salmo salar

Journal of Oceanology and Limnology 2023年第1期41卷 364-375页

作者： Shihong XU Yanfeng WANG Caixia GAO Sarath BABU V Jun LI Qinghua LIU Zhizhong XIAO Yingxuan XU Chunyan ZHAO Li LIN Liang CHI Department of Aquatic Animal Medicine College of FisheriesHuazhong Agricultural UniversityWuhan 430070China College of Veterinary Medicine Qingdao Agricultural UniversityQingdao 266109China Laboratory Animal and Comparative Medicine Team State Key Laboratory of Veterinary BiotechnologyHarbin Veterinary Research InstituteChinese Academy of Agricultural Sciences(CAAS)Harbin 150069China CAS Key Laboratory of Experimental Marine Biology Institute of OceanologyChinese Academy of SciencesQingdao 266071China Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl BreedingZhongkai University of Agriculture and EngineeringGuangzhou 510225China University College London London WC1E 6BTUnited Kingdom School of Marine Science and Engineering Qingdao Agricultural UniversityQingdao 266109China

Dissolved oxygen(DO)is one of most important factors which affect wide range physiologic features of including immune responses and intestinal bacterial ***,the underlying mechanisms remain *** address this question,the intestinal bacterial community compositions and the immune features of Atlantic salmon(Salmo salar)grown in recirculating aquaculture systems(RAS)were *** were reared under different DO saturation levels,e.g.,200% saturation named high group(H),100%saturation named control group(CK),and 60%saturation named lower group(L).Large variations in the operational taxonomic units(OTUs)frequency distribution for the intestinal bacterial community of Atlantic salmon were *** intestinal bacterial community of all groups was dominated mainly by three phyla,e.g.,***,and ***,Acinetobacter baumannii,an opportunistic pathogen of salmon was increased significantly in L *** further monitored the immunity features of fish under different DO *** results show that leucocyte number,cortisol level,the expressions of interleukin-1β(IL-1β),Toll-like receptor 4(TLR4),and nucleotide-binding oligomerization domain like protein 2(NOD2)were higher at significant levels in the L group than those in the other two ***4 and NOD2 are usually related with the bacterial infections;therefore,it is reasonable to believe that the stronger immune responses observed in the L group might be related with the higher abundance of *** in the inte stine of Atlantic ***,these findings demonstrated that low DO level may induce stronger immunity responses in Atlantic salmon.

关键词： Atlantic salmon dissolved oxygen(DO) immune responses microbiota intestine

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Effects of different root zone heating systems on the microclimate and crop development in solar greenhouses

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International Journal of agricultural and Biological engineering 2022年第6期15卷 67-72页

作者： Fen He Jing Tian Liu Wang Yong Hou Fei Qi Yanping Zhang Libao Zhu Zhonghua Li Academy of Agricultural Planning and Engineering Ministry of Agriculture and Rural AffairsBeijing 100125China Key Laboratory of Farm Building in Structure and Intelligent Construction Ministry of Agriculture and Rural AffairsBeijing 100125China Hebei Agricultural University Baoding 071001HebeiChina

Heating greenhouse is indispensable for plant development particularly in winter when the air temperature is *** that sense,root zone heating is more energy-saving than traditional air *** current work was devoted to the study of the effect of two root zone heating systems based on carbon crystal electrothermal film and low temperature hot water pipe on the microclimate and tomato yield in solar *** their performance was tested in the coldest period of winter in Yongqing County of Hebei *** results showed that the use of root zone heating system can improve the average substrate temperature by 6.8℃.This microclimate improvement had a positive impact on tomato *** output per square meter has increased by 19%compared to the *** was also noted that the presence of root zone heating leads to a decrease in the development of disease in heated *** on these results,the root zone heating system can be an effective method of improving the environmental temperature of crop plant,which is of great significance for increasing crop yield.

关键词： solar greenhouse root zone heating substrate temperature air temperature tomato trough cultivation

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UiO-66(Zr)-based functional materials for water purification: An updated review

Environmental Functional Materials

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environmental Functional Materials 2023年第2期2卷 93-132页

作者： Yu-Hang Li Chong-Chen Wang Xiao-Hong Yi Hong-Yu Chu Beijing Key Laboratory of Functional Materials for Building Structure and Environment Remediation School of Environment and Energy Engineering Beijing University of Civil Engineering and Architecture Beijing 100044 China

UiO-66, as a kind of classic metal-organic frameworks (MOFs), was foreseen as one of the most promising MOF materials for practical water purification, benefiting from its merits of rich pores, super-huge specific surface area, outstanding stability, intriguing properties and functions. Recently, to further enhance the applications of UiO-66-based materials in water environmental restoration, series effective strategies including functional modification, defect engineering, construction of UiO-66-based composites and membranes, had captured widespread interests by researchers. In this review, the recent advances in both various design strategies and corresponding structure-property relationships in wastewater treatment were summarized. The different design strategies induced particular applications, involving environmental catalysis, adsorption and fluorescent sensing detection, had been clarified with typical works. Moreover, the mechanisms and corresponding proof-of-concept techniques were also reviewed in detail. Finally, the existing challenges and future prospects of UiO-66 based functional materials including the pristine UiO-66 and its derivatives/composites for pollutants removal and sensing detection were proposed.

关键词： UiO-66 Water purification Design strategies Applications Mechanisms

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The acid dissolution characteristics of cadmium fixed by a novel Ca-Fe-Si composite material

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Journal of environmental Sciences 2023年第5期127卷 328-335页

作者： Aijun Yao Xiang Guo Man Zhao Shizhong Wang Yetao Tang Rongliang Qiu School of Geography and Planning Sun Yat-sen UniversityGuangzhou 510275China School of Environmental Science and Engineering Sun Yat-sen UniversityGuangzhou 510275China Guangdong Provincial Key Lab of Environmental Pollution Control and Remediation Technology Sun Yat-sen UniversityGuangzhou 510275China Guangdong Provincial Key Laboratory of Agricultural&Rural Pollution Abatement and Environmental Safety College of Natural Resources and EnvironmentSouth China Agricultural UniversityGuangzhou 510642China Guangdong Laboratory for Lingnan Modern Agriculture Guangzhou 510642China

Ca-Fe-Si material(CIS),a novel composite material rich in calcium,iron,manganese and silicon showed marvelous immobilization properties for heavy metal(loid)s in *** elucidate the acid stability of Cd fixed by CIS(CIS-Cd)and the underlying immobilizationmechanisms,the acid dissolution characteristics of CIS-Cdwere investigated by using acid titration method and X-ray diffraction(XRD)*** results showed that CIS-Cd had distinctive acid buffering capacity in different pH *** on the titration curve between dissolution rate of CIS-Cd and pH,CIS-Cd can be divided into non acid-stable Cd(9.4%),moderately acid-stable Cd(22.5%)and acid-stable Cd(68.1%).XRD analysis of CIS-Cd at different pH intervals and the correlation curves of dissolution rates of Cd and concomitant elements indicated that non acid-stable Cdwas mainly bound by carbonate,silicate and sulfate(CdCO_(3),Cd_(2)SiO_(4) and CdSO_(4))or co-precipitated with the corresponding calcium *** acid-stable Cd was mainly bound by magnesium-aluminum-silicon containing minerals or electrically bound bymanganese iron ***-stable Cd remaining undissolved at pH<2.42 included CdFe_(2)O_(4) and ferromanganese minerals strongly bound *** was by multilateral fixation mechanisms that Ca-Fe-Si material possessed marvelous immobilization capability for Cd and strong resilience to environmental acidification as *** findings implicated that proper combination of calcium-iron-silicon containing minerals could develop novel promising amendments with high efficiency in heavy metal(loid)s immobilization and strong resilience to environmental change.

关键词： Ca-Fe-Si composite material Acid stability Cadmium Immobilization mechanisms

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Higher CH₄ production in permafrost while oxidation prevails in the active layer: Insights from a forest‒wetland ecotone in Northeast China

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Advances in Climate Change Research 2025年第2期16卷 273-283页

作者： Dong, Xing-Feng Liu, Chao Li, Miao Wu, Xiao-Dong Zheng, Zhi-Chao Wu, Xiang-Wen Zang, Shu-Ying Heilongjiang Province Key Laboratory of Geographical Environment Monitoring and Spatial Information Service in Cold Regions Heilongjiang Province Collaborative Innovation Center of Cold Region Ecological Safety Harbin Normal University Harbin 150025 China School of Resources and Environment Northeast Agricultural University Harbin 150030 China Cryosphere Research Station on the Qinghai‒Tibet Plateau State Key Laboratory of Cryospheric Science and Frozen Soil Engineering Northwest Institute of Eco-Environment and Resources Chinese Academy of Sciences Lanzhou 730000 China

Continuous climate warming results in a deeper active layer and elevated CH4 emissions. However, our knowledge about the CH4 production and oxidation potentials in active layers and permafrost remains limited. This st... 详细信息

Continuous climate warming results in a deeper active layer and elevated CH₄ emissions. However, our knowledge about the CH₄ production and oxidation potentials in active layers and permafrost remains limited. This study explored the CH₄ production and oxidation potentials in these layers and their responses to temperature variations across two habitats in the Da Xing'an Mountains in northeast China. The results showed that the CH₄ production potential was higher in permafrost than in the active layer across forest and wetland habitats (p < 0.05). The temperature sensitivity was greater in the active layer (1.98 ± 0.20 in forests, 3.42 ± 0.37 in wetlands) than in permafrost (1.59 ± 0.13 in forests, 2.08 ± 0.34 in wetlands). CH₄ oxidation potential was higher in the active layer than in permafrost (p < 0.05). However, its temperature sensitivity was higher in permafrost (3.65 ± 0.76 in forests, 2.62 ± 0.50 in wetlands) than in the active layer (3.46 ± 0.66 in forests, 1.90 ± 0.32 in wetlands). The key abiotic driving these processes were pH and soil water content. Amongst microbial properties, CH₄ production was enhanced by the abundance of mcrA genes and methanogenic diversity rather than by community composition. On the contrary, CH₄ oxidation was influenced by pmoA gene abundance, methanotrophic diversity and community composition. Soil parameters and microbial factors accounted for 78% of the variance in CH₄ production and 60% in CH₄ oxidation potential. Overall, this study highlights the different production and oxidation potentials of CH₄ in the active layer and permafrost within a forest‒wetland ecotone, as well as their controlling factors. These findings emphasise the importance of considering changes in the active layer when modelling greenhouse gas emissions from permafrost regions under a warming climate. © 2025 The Authors

关键词： Active layer Carbon cycle CH4 dynamics Climate warming Permafrost

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Mitigation of N_(2)O emissions in water-saving paddy fields:Evaluating organic fertilizer substitution and microbial mechanisms

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Journal of Integrative Agriculture 2024年第9期23卷 3159-3173页

作者： Delei Kong Xianduo Zhang Qidong Yu Yaguo Jin Peikun Jiang Shuang Wu Shuwei Liu Jianwen Zou College of Environment and Resources/College of Carbon Neutrality Zhejiang A&F UniversityHangzhou 311300China Jiangsu Key Laboratory of Low Carbon Agriculture and GHGs Mitigation College of Resources and Environmental SciencesNanjing Agricultural UniversityNanjing 210095China Department of Biochemistry and Molecular Biology College of Life SciencesNanjing Agricultural UniversityNanjing 210095China Jiangsu Key Lab and Engineering Center for Solid Organic Waste Utilization Jiangsu Collaborative Innovation Center for Solid Organic Waste Resource UtilizationNanjing Agricultural UniversityNanjing 210095China

Water-saving irrigation strategies can successfully alleviate methane emissions from rice fields,but significantly stimulate nitrous oxide(N_(2)O)emissions because of variations in soil oxygen level and redox ***,the relationship linking soil N_(2)O emissions to nitrogen functional genes during various fertilization treatments in water-saving paddy fields has rarely been ***,the mitigation potential of organic fertilizer substitution on N_(2)O emissions and the microbial mechanism in rice fields must be further *** study examined how soil N_(2)O emissions were affected by related functional microorganisms(ammonia-oxidizing archaea(AOA),ammonia-oxidizing bacteria(AOB),nirS,nirK and nosZ)to various fertilization treatments in a rice field in southeast China over two *** this study,three fertilization regimes were applied to rice cultivation:a no nitrogen(N)(Control),an inorganic N(Ni),and an inorganic N with partial N substitution with organic manure(N_(i)+N_(o)).Over two rice-growing seasons,cumulative N_(2)O emissions averaged 0.47,4.62 and 4.08 kg ha^(−1)for the Control,Ni and N_(i)+N_(o)treatments,*** comparison to the Ni treatment,the N_(i)+N_(o)fertilization regime considerably reduced soil N_(2)O emissions by 11.6%while maintaining rice yield,with a lower N_(2)O emission factor(EF)from fertilizer N of 0.95%.Nitrogen fertilization considerably raised the AOB,nirS,nirK and nosZ gene abundances,in comparison to the Control ***,the substitution of organic manure for inorganic N fertilizer significantly decreased AOB and nirS gene abundances and increased nosZ gene *** AOB responded to N fertilization more sensitively than the *** N_(2)O emissions significantly correlated positively with AOB and nirS gene abundances while having a negative correlation with nosZ gene abundance and the nosZ/nirS ratio across N-fertilized *** summary,we conclude that organic manure substi

关键词： organic manure substitution inorganic fertilizer N_(2)O functional microbe rice paddy

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Tea-derived carbon materials as anode for high-performance sodium ion batteries

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Chinese Chemical Letters 2023年第4期34卷 519-525页

作者： Huayan Wang Huixin Chen Chi Chen Miao Li Yiming Xie Xingcai Zhang Xianwen Wu Qiaobao Zhang Canzhong Lu Engineering Research Center of Environment-Friendly Function Materials Ministry of EducationInstitute of Materials Physical ChemistryHuaqiao UniversityXiamen 361021China CAS key Laboratory of Design and Assembly of Functional Nanostructures and Fujian Provincial Key Laboratory of NanomaterialsFujian Institute of Research on the Structure of MatterChinese Academy of SciencesFuzhou 350002China Department of Materials Science and Engineering College of MaterialsXiamen UniversityXiamen 361005China School of Engineering and Applied Sciences Harvard UniversityCambridgeMA 02138United States School of Engineering Massachusetts Institute of TechnologyCambridgeMA 02139United States Xiamen Key Laboratory of Rare Ear School of Chemistry and Chemical Engineering Jishou UniversityJishou 416000China

Sodium-ion batteries(SIB) have attracted widespread attention in large-scale energy storage fields owing to the abundant reserve in the earth and similar properties of sodium to lithium. Biomass-based carbon materials with low-cost, controllable structure, simple processing technology, and environmental friendliness tick almost all the right boxes as one of the promising anode materials for SIB. Herein, we present a simple novel strategy involving tea tomenta biomass-derived carbon anode with enhanced interlayer carbon distance(0.44 nm) and high performance, which is constructed by N,P co-doped hard carbon(Tea-1100-NP) derived from tea tomenta. The prepared Tea-1100-NP composite could deliver a high reversible capacity(326.1 m Ah/g at 28 m A/g), high initial coulombic efficiency(ICE = 90% at 28 m A/g),stable cycle life(262.4 m Ah/g at 280 m A/g for 100 cycles), and superior rate performance(224.5 m Ah/g at 1400 m A/g). Experimental results show that the excellent electrochemical performance of Tea-1100-NP due to the high number of active N,P-containing groups, and disordered amorphous structures provide ample active sites and increase the conductivity, meanwhile, large amounts of microporous shorten the Na+diffusion distance as well as quicken ion transport. This work provides a new type of N,P co-doped high-performance tomenta-derived carbon, which may also greatly promote the commercial application of SIB.

关键词： Tea tomenta Co-doped Hard carbon Initial coulombic efficiency Sodium-ion batteries

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Genome-wide identification of yellow gene family in Hermetia illucens and functional analysis of yellow-y by CRISPR/Cas9

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Insect Science 2025年第1期32卷 115-126页

作者： Yongcheng Dong Xiaomiao Xu Lansa Qian Zongqing Kou Awawing A.Andongma Lijun Zhou Yongping Huang Yaohui Wang Key Laboratory of Biology and Sustainable Management of Plant Diseases and Pests of Anhui Higher Education Insttutes College of Plant ProtectionAnhui Agricultural UniversityHefeiChina Chinese Academy of Sciences(CAS)Key Laboratory of Insect Developmental and Evolutionary Biology CAS Center for Excellence in Molecular Plant SciencesCASShanghaiChina Insect and Parasite Ecology Group Lancaster Environment CentreLancaster UniversityLancasterUK School of Environmental Science and Engineering Shanghai Jiao Tong UniversityShanghaiChina

The yellow gene family plays a crucial role in insect *** has potential for use as a visible marker gene in genetic manipulation and transgenic engineering in several model and non-model ***,yellow genes have rarely been identified in Stratiomyidae species and the functions of yellow genes are relatively *** the present study,we first manually annotated and curated 10 yellow genes in the black soldier fly(BSF),Hermetia illucens(Stratiomyidae).Then,the conserved amino acids in the major royal jelly proteins(MRJPs)domain,structural architecture and phylogenetic relationship of yellow genes in BSF were *** found that the BSF yellow-y,yellow-c and yellow-f genes are expressed at all developmental stages,especially in the prepupal *** the clustered regularly interspaced short palindromic repeats(CRISPR)/CRISPR-associated protein 9(Cas9)system,we successfully disrupted yellow-y,yellow-c and yellow-f in the ***,the mutation of yellow-y clearly resulted in a pale-yellow body color in prepupae,pupae and adults,instead of the typical black body color of the wild ***,the mutation of yellow-c or yellow-f genes did not result in any change in color of the insects,when compared with the wild *** study indicates that the BSF yellow-y gene plays a role in body pigmentation,providing an optimal marker gene for the genetic manipulation of BSF.

关键词： CRISPR-Cas9 Hermetia illucens pigmentation yellow family yellow-y

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Bright and tunable emissive monodisperse CsPbI3@Cs4PbI6 nanocomposites via a precise and controllable dissolution−recrystallization method

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Nano Research 2023年第1期16卷 1586-1594页

作者： Luyu Cao Bomei Liu Lin Huang Zhi Zhou Chong-Geng Ma Jian Zhang Jing Wang Ministry of Education Key Laboratory of Bioinorganic and Synthetic Chemistry State Key Laboratory of Optoelectronic Materials and TechnologiesSchool of ChemistrySun Yat-Sen UniversityGuangzhou 510275China School of Materials Science and Engineering Sun Yat-Sen UniversityGuangzhou 510275China College of Science Hunan Optical Agriculture Engineering Technology Research CenterHunan Agricultural UniversityChangsha 410128China CQUPT-BUL Innovation Institute Chongqing University of Posts and TelecommunicationsChongqing 400065China Engineering Research Center of Electronic Information Materials and Devices(Ministry of Education) Guangxi Key Laboratory of Information MaterialsGuangxi Collaborative Innovation Center of Structure and Property for New Energy and MaterialsSchool of Materials Science and EngineeringGuilin University of Electronic TechnologyGuilin 541004China

Nowadays,due to uncontrolled synthesis and lack of more direct and systematic evidences,the photoluminescence origin of“zero-dimensional”Cs4PbI6 remains great controversy and the luminescence cannot be *** we propose a controllable dissolution-recrystallization method to synthesize“emissive”and“non-emissive”Cs4PbI6 nanocrystals(NCs)*** comparing“emissive”and“non-emissive”Cs4PbI6 NCs,it is clearly proved that the visible emission in“emissive”Cs4PbI6 NCs comes from embedded CsPbI3 quantum dots(QDs).It is found for CsPbI3@Cs4PbI6 nanocomposites,methyl acetate(MeAC)and cyclohexane play an important role in dissolution and recrystallization respectively to obtain Cs4PbI6 matrix and CsPbI3 *** from this two-step method,the as-synthesized CsPbI3@Cs4PbI6 nanocomposites with CsPbI3 QDs uniformly distributed in Cs4PbI6 matrix are bright with photoluminescence quantum yield(PLQY)up to 71.4%and exhibit improved stability than CsPbI3 ***,utilizing its formation mechanism,the size of embedded CsPbI3 QDs can be controlled by reasonable designing the“dissolution”process,so that the luminescence of this CsPbI3@Cs4PbI6 nanocomposites can be adjusted in a wide range from green to red(554–630 nm).Our finding not only provides a novel method for synthesizing tunable“emissive”Cs4PbI6 NCs,but also makes clear the photoluminescence origin of“emissive”Cs4PbI6.

关键词： CsPbI3@Cs4PbI6 dissolution-recrystallization nanocomposites tunable emission

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Estimation of tunnel fan operating conditions for a laying hen house based on the ventilation resistance characteristics

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Biosystems engineering 2025年 257卷

作者： Zhang, Zhihao Wang, Yang Li, Baoming Peng, Haiqing Zhu, Hao College of Water Resources and Civil Engineering China Agricultural University Key Laboratory of Agricultural Engineering in Structure and Environment Ministry of Agriculture and Rural Affairs Beijing100083 China Beijing Engineering Research Center for Livestock and Poultry Healthy Environment Beijing100083 China Guangdong Sun Daily Farm Ecological Food Co. Ltd. Jiangmen529300 China

Tunnel-ventilated laying houses need adequate ventilation rates to abate heat stress in hot climates. However, due to the underestimation of the ventilation resistance caused by the caged-hen occupied zone (COZ), the differential static pressure (DSP) of fans determined empirically is lower than the actual value, resulting in insufficient ventilation rate in the laying house. In this study, field measurements of the ventilation rate and DSP were conducted with various operating fans in a commercial layer house. A ventilation resistance curve was developed according to the results of computational fluid dynamics (CFD) simulations on the DSP distribution. The ventilation rate was estimated by the number of operating fans, resistance curve and fan performance curve. When the number of operating fans increased from 16 to 24, the fan ventilation rate decreased by 24.56 %, and the fan DSP increased from 41.6 to 67.7 Pa. The resistance caused by COZ contributed more than 60 % to the fan DSP. The DSP distribution near the fan was not uniform. The measured fans and fan DSP measuring point were in the low DSP area, resulting in the predicted ventilation rate being lower than the measured ventilation rate. The error of ventilation rate predicted by the in situ fan performance curve (E 3.47 %–6.51 %;RMSE 8.7) was higher than that predicted by the designed fan performance curve (E 0.77 %–4.72 %;RMSE 4.49). This study provides a methodological basis for accurately developing the ventilation resistance curve of the tunnel ventilated laying house. © 2025 IAgrE

关键词： Computational fluid dynamics

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