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Effect of Gully Land Reclamation on Soil Organic Matter and Carbon co.tents

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Agricultural biotechnology 2021年第3期10卷 80-82页

作者： Panpan ZHANG Tingyu ZHANG Institute of Land Engineering&Technology Shaanxi Provincial Land Engineering Construction Group Co.LtdXi'an 710075China Shaanxi Provincial Land Engineering co.struction Group Key Laboratory of Degraded and Unused Land Consolidation EngineeringMinistry of Natural ResourcesXi'an 710075China Shaanxi Provincial Land co.solidation Engineering Technology Research Center Xi'an 710075China Land Engineering Technology Innovation Center Ministry of Natural ResourcesXi'an 710075China

[Objectives]This study was co.ducted to investigate the effects of Yan an gully land reclamation project on farmland soil organic matter and carbon co.tents.[Methods]Through indirect sampling and random sampling methods,soil samples were co.lected from six areas of Baota District,Ansai District,and Zichang co.nty in Yan an City,before and after gully land reclamation,and the organic matter and soil organic carbon co.tained in them were determined.[Results]Through sampling experiments,we initially analyzed the changes of the above co.ponents in the land co.solidation areas after different years and the reasons for the changes:①after the Yan an gully land reclamation project was implemented,the soil organic matter and carbon co.tents increased;②directing at the improvement of soil organic matter and carbon co.tent different years after the co.solidation,the improvement ranked as 5 a>2 a>1 a;and③co.relation analysis showed that there was a significant positive co.relation between soil organic matter and carbon co.tents.[co.clusions]This study provides scientific decision-making and theoretical basis for the co.struction of high-standard farmland in gully areas and the implementation and promotion of gully land reclamation projects.

关键词： Gully land reclamation Soil organic matter Soil organic carbon Effect

Unmanned Aerial Vehicle co.trol of Major Sugarcane Diseases and Pests in Low Latitude Plateau

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Agricultural biotechnology 2019年第4期8卷 48-51页

作者： Xiaoyan WANG Rongyue ZHANG Hongli SHAN Yuanhong FAN Hong XU Pizhong HUANG Zejuan LI Tingying DUAN Ning KANG Wenfeng LI Yingkun HUANG Sugarcane Research Institute Yunnan Academy of Agricultural SciencesKaiyuan 661699China Yunnan Plateau Characteristic Agricultural Industry Research Institute Kunming 650201China Yunnan Zichen Agricultural Development co.LTD Xiangyun 672100China Lincang Nanhua Sugar Industry co.LTD Lincang 677500China Yunnan Kaimike Agricultural Technology Service co.LTD Kunming 650000China Dehong Sugarcane Research Institute Longchuan 678707China

This research was aimed at the defects in traditional artificial spraying co.trol method and the problems such as the difficulty in pesticides applying,labor shortage and low operating efficiency in the middle and late stage of sugarcane high stalk *** aerial pesticide application technology for sugarcane main diseases and pests was systematically developed and demonstrated from the aspects of aircraft type choice,selection of special pesticides and auxiliaries,integration of pesticides and equipment,field operation,technical specifications,and large-scale application organization *** UAV model and flight technical parameters suitable for the sugarcane planting area in low-latitude plateau were analyzed,and the optimal agent formulation co.bination and application technology of the UAV flight co.trol were screened out,and the UAV flight co.trol was applied to the major sugarcane pests and diseases co.trol in the low-latitude plateau in large scale(UAV flight co.trol was popularized and applied to 15 527 hm 2 in 2018).The research results provided mature whole-process technical support for the normalization of the application of the UVA flight co.trol of major sugarcane pests and *** UAV co.trol technology for major sugarcane pests and diseases had the advantages of ultra-low pesticides applying dosage and high operating efficiency,and co.ld effectively solve the problems such as the difficulty in pesticides applying,labor shortage and low operating efficiency in the middle late growth stage of high stalk *** technology successfully opened up a simple,efficient and new way for the effective co.trol of major sugarcane pests and diseases,and practically accelerated the process of integrated co.trol and prevention of sugarcane pests and *** addition,this technology had an extremely significant effect on reducing the loss of sugarcane farmers and enterprises caused by the epidemic and outbreak of sugarcane pests and diseases,increasing

关键词： Low latitude plateau Sugarcane diseases and pests Unmanned aerial vehicle Prevention and co.trol technology

用于水果初次包装的活性包装纸的机械性能和抗菌效果研究

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中国印刷与包装研究 2014年第3期6卷 73-78页

作者： S.G.Rudra V.Singh S.D.Jyoti U.S.Shivhare 何文 Division of Post Harvest Technology Indian Agricultural Research InstitutePusa Campus Department of biotechnology and Environmental Sciences Thapar University Central Institute of Post Harvest Engineering and Technology

0引言言活性包装(Active Packaging)又称AP包装,属于一种智能型包装,是指在包装袋内加入各种气体吸收剂和释放剂,以除去过多的co.、乙烯及水气,并及时补充O2。

关键词： Active packaging co.ted paper Wrapping Sodium perm

Genomic insights into the uncultured genus‘Candidatus Magnetobacterium' in the phylum Nitrospirae

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Genomic insights into the uncultured genus‘Candidatus Magne...

Evaluation of the Acute Toxicity of Prochloraz-manganese Chloride co.plex to Environmental Species

中国科学院地质与地球物理研究所2014年度（第14届）学术年会

作者： Wei Lin Aihua Deng Zhang Wang Ying Li Tingyi Wen Long-Fei Wu Martin Wu Yongxin Pan Biogeomagnetism Group Paleomagnetism and Geochronology LaboratoryKey Laboratory of the Earth’s Deep InteriorInstitute of Geology and GeophysicsChinese Academy of Sciences France-china Bio-Mineralization and Nano-Structures Laboratory Chinese Academy of Sciences CAS Key Laboratory of Microbial Physiological and Metabolic Engineering Institute of MicrobiologyChinese Academy of Sciences Department of Biology University of VirginiaCharlottesvilleVAUSA State Key Laboratory of Agro-biotechnology and Laboratoire International Associe Franco.Chinois de Bio-Mineralisation et Nano-Structures College of Biological SciencesChina Agricultural University Laboratoire de Chimie Bacte′rienne Aix-Marseille UniversiteCNRSMarseille Cedex 20France

Magnetotactic bacteria(MTB)of the genus‘Candidatus Magnetobacterium’in phylum Nitrospirae are of great interest because of the formation of hundreds of bullet-shaped magnetite magnetosomes in multiple bundles of chains per *** bacteria are worldwide distributed in aquatic environments and have important roles in the biogeochemical cycles of iron and ***,except for a few short genomic fragments,no genome data are available for this eco.ogically important genus,and little is known about their metabolic capacity owing to the lack of pure *** we report the first draft genome sequence of 3.42 Mb from an uncultivated strain tentatively named‘*** casensis’isolated from Lake Miyun,*** genome sequence indicates an autotrophic lifestyle using the Wood–Ljungdahl pathway for co.fixation,which has not been described in any previously known MTB or Nitrospirae *** involved in the denitrification,sulfur oxidation and sulfate reduction have been predicted,indicating its co.siderable capacity for adaptation to variable geochemical co.ditions and roles in local biogeochemical ***,we have identified a co.plete magnetosome gene island co.taining mam,mad and a set of novel genes(named as man genes)putatively responsible for the formation of bullet-shaped magnetite magnetosomes and the arrangement of multiple magnetosome *** first co.prehensive genomic analysis sheds light on the physiology,eco.ogy and biomineralization of the poorly understood‘***’genus.

关键词：

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Agricultural biotechnology 2021年第1期10卷 74-78页

作者： Xuye ZHANG Ji MA Xuanqing KONG Kuai YU Xiaojun DENG Wensen OUYANG Yu JIANG Xiaoming OU Chenzhong JIN co.laborative Innovation Center for Farmland Weeds co.trol Techniques and Application of Hunan Province/Key Laboratory of Pesticide Harmless Application Hunan University of HumanitiesScience and TechnologyLoudi 417000China National Agrochemical Creation Engineering Research Center/Hunan Provincial Key Laboratory of Agrochemicals Hunan Research Institute of Chemical IndustryChangsha 410014China WEIPU Testing Technology co. Ltd.Changsha 410014China

[Objectives] This study was co.ducted to evaluate the toxicity risk of prochloraz-manganese chloride co.plex to environmental organisms. [Methods] The acute toxicity tests of prochloraz-manganese chloride co.plex on 8 co.mon environmental organisms, such as co.urnix co.urnix japonica, Apis mellifera L., Eisenia foetida, Bombyx mori, Trichogramma japonicum, Brachydanio rerio, Daphnia magna Straus and Scenedesmus obliquus were carried out. [Results] Prochloraz-manganese chloride co.plex to D. magna EC50(48 h): 1.11 mg a.i./L, with a 95% co.fidence limit of 1.00-1.26 mg a.i./L;B. rerio LC50(96 h): 2.84 mg a.i./L, with a 95 % co.fidence limit of 2.43-3.48 mg a.i./L;S. obliquus ErC50(72 h): 1.88×10^-2 mg a.i./L, with a 95% co.fidence limit of 1.70×10^-2-2.16×10^-2 mg a.i./L;C. co.urnix LD50(168 h): 1.01×10^3 mg a.i./kg body weight, with a 95% co.fidence limit of 7.87×10^2-1.27×10^3 mg a.i./kg body weight;T. japonicum LR50(24 h): 2.53×10^-3 mg a.i./cm^2, with a 95% co.fidence limit of 2.14×10^-3-2.99×10^-3 mg a.i./cm^2;B. mori LC50(96 h): 2.03×10^2 mg a.i./L, with a 95% co.fidence limit of 1.79×10^2-2.30×10^2 mg a.i./L;A. mellifera(peroral) LD50(48 h)>100 μg a.i./bee;A. mellifera(co.tact) LD50(48 h)>100 μg a.i./bee;E. foetida LC50(14 d)>1.00×10^2 mg a.i./kg dry soil. Acco.ding to the Guidance for Evaluating and Calculating Degradation Kinetics in Environmental Media for Pesticide Registration, prochloraz-manganese chloride co.plex had low toxicity to A. mellifera, C. co.urnix, B. mori and E. foetida, medium toxicity to D. magna and B. rerio, and high toxicity and low risk to S. obliquus and T. japonicum. [co.clusions] This study provides a data basis for the toxicity and environmental safety evaluation of the agent.

关键词： Prochloraz-manganese chloride co.plex Environmental organisms Acute toxicity

ERα promotes transcription of tumor suppressor gene ApoA-I by establishing H3K27ac-enriched chromatin microenvironment in breast cancer cells

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Journal of Zhejiang University-Science B(Biomedicine & biotechnology) 2021年第12期22卷 1034-1044页

作者： Bingjie WANG Yinghui SHEN Tianyu LIU Li TAN Center for Medical Research and Innovation Shanghai Pudong HospitalFudan University Pudong Medical Centerand Shanghai Key Laboratory of Medical EpigeneticsInstitutes of Biomedical SciencesFucian UniversityShanghai 200032China co.orectal Cancer Center Department of General SurgeryZhongshan HospitalFudan UniversityShanghai 200032China

Apolipoprotein A-I(Apo A-I),the main protein co.ponent of high-density lipoprotein(HDL),plays a pivotal role in reverse cholesterol transport(RCT).Previous studies indicated a reduction of serum Apo A-I levels in various types of cancer,suggesting Apo A-I as a potential cancer ***,ectopically overexpressed Apo A-I in MDA-MB-231 breast cancer cells was observed to have antitumor effects,inhibiting cell proliferation and *** studies on the mechanism of expression regulation revealed that estradiol(E2)/estrogen receptorα(ERα)signaling activates Apo A-I gene transcription in breast cancer ***,our Ch IP-seq data showed that ERαdirectly binds to the estrogen response element(ERE)site within the Apo A-I gene and establishes an acetylation of histone 3 lysine 27(H3 K27 ac)-enriched chromatin ***,Fulvestrant(ICI 182780)treatment blocked ERαbinding to ERE within the Apo A-I gene and downregulated the H3 K27 ac level on the Apo A-I *** with p300 inhibitor also significantly decreased the Apo A-I messenger RNA(m RNA)level in MCF7 ***,the analysis of data from The Cancer Genome Atlas(TCGA)revealed a positive co.relation between ERαand Apo A-I expression in breast cancer *** together,our study not only revealed the antitumor potential of Apo A-I at the cellular level,but also found that ERαpromotes the transcription of Apo A-I gene through direct genomic effects,and p300 may act as a co.activator of ERαin this process.

关键词： Apolipoprotein A-I(ApoA-I) Estrogen receptorα(ERα) Acetylation of histone 3 lysine 27(H3K27ac) p300 Breast cancer

Study on Element co.tents in Tobacco.Leaves from Different Positions of Tobacco.CB-1

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Agricultural biotechnology 2022年第6期11卷 119-125页

作者： Caijun XIE Shilei ZHANG Deqing CHEN Penghui LYU Wensheng LIN Jianrong ZHENG Jinchai YU Qiuying CAO Siyi CHENG Xueqin ZHANG Yongxin FENG Zenghan XU china Tobacco.Hebei Industrial co.Ltd. Shijiazhuang 050051China Zhangping Branch of Longyan Tobacco.co.pany Zhangping 364400China Research Center of Tobacco.and Health University of Science and Technology of ChinaHefei 230052China

[Objectives]This study was co.ducted to clarify the differences and abundance or deficiency of various elements in tobacco.leaves from different positions of CB-1 in Zhangping City,so as to guide the production of precision fertilization.[Methods]The element co.tents of CB-1 were determined by an X-ray fluorescence spectrometer.[Results]In terms of the co.tents of carbon,the upper leaves(45.73%)were significantly higher than the cutters(41.53%),and the lower leaves(43.15%)had no significant differences from both of *** the co.tent of oxygen element,there was no significant difference between the cutters(44.77%)and the lower leaves(43.40%),both of which were significantly higher than the upper leaves(40.75%).The co.tents of nitrogen,phosphorus,sulfur,boron and nickel all increased with the increase of the position,and they were significantly higher in the upper leaves than in the cutters and lower *** co.tents of potassium,calcium,magnesium,chlorine and silico. all decreased with the increase of the position,and the lower leaves were significantly higher than the cutters and upper *** co.tents of aluminum,titanium and chromium increased significantly with the increase of the *** co.tents of strontium,zirco.ium and arsenic decreased significantly with the increase of the *** element co.tents of tobacco.leaves had significant or extremely significant differences between different parts of CB-1 in Zhangping City *** co.tents of nitrogen,potassium,calcium,sulfur,chlorine,molybdenum and nickel in tobacco.leaves were appropriate,and the co.tents of manganese and iron were too high,while the co.tents of phosphorus and co.per were slightly *** co.tents of magnesium,silico.,boron and sodium were too low.[co.clusions]This study can guide targeted fertilization and regulation of element co.tents in the tobacco.leaves from different parts in production,and is of great significance to improving the production,quality and industrial

关键词： CB-1 Positions Lower leaf Cutters Upper leaf Nutrition element

Two-Dimensional Metal-Organic Frameworks with Unique Oriented Layers for Oxygen Reduction Reaction:Tailoring the Activity through Exposed Crystal Facets

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CCS Chemistry 2022年第5期4卷 1633-1642页

作者： Yanzhi Wang Tu Sun Amir H.B.Mostaghimi Tiago J.Goncalves Zuozhong Liang Yuye Zhou Wei Zhang Zhehao Huang Yanhang Ma Rui Cao Samira Siahrostami Haoquan Zheng Key Laboratory of Applied Surface and co.loid Chemistry Ministry of EducationSchool of Chemistry and Chemical EngineeringShaanxi Normal UniversityXi’an 710119 School of Physical Science and Technology ShanghaiTech UniversityShanghai 201210 Department of Chemistry University of CalgaryCalgaryAB T2N 1N4 School of Engineering Sciences in Chemistry Biotechnologyand HealthDepartment of ChemistryDivision of Applied Physical ChemistryAnalytical ChemistryKTH Royal Institute of TechnologySE-10691 Stockholm Department of Materials and Environmental Chemistry Stockholm UniversitySE-10691 Stockholm

As one of the most important families of porous materials,metal–organic frameworks(MOFs)have well-defined atomic *** provides ideal models for investigating and understanding the relationships between structures and catalytic activities at the molecular ***,the active sites on the edges of two-dimensional(2D)MOFs have rarely been studied,as they are less exposed to the ***,for the first time,we synthesized and observed that the 2D layers co.ld align perpendicular to the surface of a 2D zeolitic imidazolate framework L(ZIF-L)with a leaf-like *** to this unique orientation,the active sites on the edges of the 2D crystal structure co.ld mostly be exposed to the ***,when another layer of ZIF-L-co.was grown heteroepitaxially onto ZIF-L-Zn(ZIF-L-Zn@ZIF-L-co.,the two layers shared a co.mon b axis but rotated by 90°in the ac *** demonstrated that we co.ld co.trol exposed facets of the 2D *** ZIF-L-co.with more exposed edge active sites exhibited high electrocatalytic activity for oxygen reduction *** work provides a new co.cept of designing unique oriented layers in 2D MOFs to expose more edge-active sites for efficient electrocatalysis.

关键词： unique oriented layer two-dimensional material metal-organic framework electrocatalyst oxygen reduction reaction

co.expression of TRAIL and Smac delivered by an E1B-55K deleted onco.ytic adenovirus co.taining a caspase-8 cleavage site (IETD) elicits co.plete elimination of hepatocellular carcinoma xenograft

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Co-expression of TRAIL and Smac delivered by an E1B-55K dele...