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Vermicompost:In situ retardant of antibiotic resistome accumulation in cropland soils

Journal of Environmental Sciences 2024年第7期141卷 277-286页

作者： Meirui mu Fengxia Yang Bingjun Han Guisheng Tian Keqiang zhang Agro-Environmental Protection Institute Ministry of Agriculture and Rural AffairsTianjin 300191China Key Laboratory of Low-carbon Green Agriculture in North China Ministry of Agriculture and Rural Affairs P.R.ChinaBeijing 10083China Wuxue City Agriculture and Rural Bureau Wuhan 435400China

The dissemination of antibiotic resistance genes(ARGs)in soil has become a global environmental *** is gaining prominence in agricultural practices as a soil amendment to improve soil ***,its impact on soil ARGs remains unclear when it occurs in *** comprehensively explored the evolution and fate of ARGs and their hosts in the field soil profiles under vermicompost application for more than *** application increased several ARG loads in soil environment but decreased the high-risk bla-ARGs(bla_(ampC),bla_(NDM),and bla_(GES-1))by log(0.04-0.43).ARGs in soil amended with vermicompost primarily occurred in topsoil(approximately 1.04-fold of unfertilized soil),but it is worth noting that their levels in the 40-60 cm soil layer were the same or even less than in the unfertilized *** microbial community structure changed in soil profiles after vermicompost *** application altered the microbial community structure in soil profiles,showing that the dominant bacteria(i.e.,Proteobacteria,Actinobacteriota,Firmicutes)were decreased 2.62%-5.48%with the increase of soil depth.A network analysis further revealed that most of ARG dominant host bacteria did not migrate from surface soil to deep *** particular,those host bacteria harboring high-risk bla-ARGs were primarily concentrated in the surface *** study highlights a lower risk of the propagation of ARGs caused by vermicompost application and provides a novel approach to reduce and relieve the dissemination of ARGs derived from animals in agricultural production.

关键词： Vermicompost application Antibiotic resistance genes Vertical migration Soil profile Agricultural soils

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Jiawei Erzhiwan improves menopausal metabolic syndrome by enhancing insulin secretion in pancreatic β cells

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Chinese Journal of Natural Medicines 2016年第11期14卷 823-834页

作者： WAN Xiao-Meng zhang mu zhang Pei XIE Zhi-Shen XU Feng-Guo ZHOU Ping MA Shi-Ping XU Xiao-Jun State Key Laboratory of Natural Medicine China Pharmaceutical University Nanjing 210009 China Jiangsu Key Laboratory of Drug Discovery for Metabolic Diseases Nanjing 210009 China

Menopausal metabolic syndrome(MMS) is a series of syndrome caused by ovarian function decline and hormone insufficiency, and is a high risk factor for cardiovascular diseases(CVD) and type II diabetes mellitus(T2DM). Erzhiwan(EZW),composed of Herba Ecliptae and Fructus Ligustri Lucidi, is a traditional Chinese herbal formula that has been used to treat menopausal syndrome for many years. We added Herba Epimedii, Radix Rehmanniae, and Fructus Corni into EZW, to prepare a new formula, termed Jiawei Erzhiwan(JE). The present study was designed to determine the anti-MMS effects of JE using ovariectomized(OVX) adult female rats that were treated with JE for 4 weeks, and β-tc-6 cells and INS cells were used to detected the protect effectiveness of JE. Our results showed JE could increase insulin sensitivity and ameliorated hyperlipidemia. Metabolomics analysis showed that the serum levels of branched and aromatic amino acids were down-regulated in serum by JE administration. Moreover, JE enhanced the function of islet βcells INS-1 and β-tc-6, through increasing the glucose stimulated insulin secretion(GSIS), which was abolished by estrogen receptor(ER)antagonist, indicating that JE functions were mediated by ER signaling. Additionally, JE did not induce tumorigenesis in rat mammary tissue or promoted proliferation of MCF-7 and Hela cells. In conclusion, our work demonstrated that JE ameliorated OVX-induced glucose and lipid metabolism disorder through activating estrogen receptor pathway and promoting GSIS in islet β cells, thus indicating that JE could be a safe and effective medication for MMS therapy.

关键词： Jiawei Erzhiwan Menopausal metabolic syndrome Estrogen receptor Glucose tolerance Islet β cell

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有机肥与石灰配施对华南酸性土壤的改良效果

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农业资源与环境学报 2024年第3期41卷 606-613页

作者：黄建凤吴腾飞叶芳张木逄玉万吴昭云肖勇吴永沛付弘婷李苹广东省农业科学院农业资源与环境研究所/农业农村部南方植物营养与肥料重点实验室/广东省养分资源循环利用与耕地保育重点实验室广州510640 广东省农业环境与耕地质量保护中心广州510500 广东省农业科学院植物保护研究所广州510640

为明确有机肥与石灰对华南酸性土壤的改良效果,采用田间小区试验,研究了有机肥、石灰分别单施与配施对双季稻区酸性土壤的酸化性质、水稻生长及产量的影响。试验包括5个处理:不施肥(CK)、单施控释肥(CF)、控释肥+石灰(LM)、控释肥+有机... 详细信息

为明确有机肥与石灰对华南酸性土壤的改良效果,采用田间小区试验,研究了有机肥、石灰分别单施与配施对双季稻区酸性土壤的酸化性质、水稻生长及产量的影响。试验包括5个处理:不施肥(CK)、单施控释肥(CF)、控释肥+石灰(LM)、控释肥+有机肥(OF)、控释肥+石灰与有机肥配施(CLO),除CK外,各处理养分保持一致,物料均在水稻移栽前一次性施入土壤。结果表明,CLO处理对土壤pH的改良效果最优,其pH提高了0.42个单位,而OF和LM处理的pH分别提升0.27、0.37个单位;OF处理土壤有机质含量最高,达44.46 g·kg^(-1),其次为CLO处理,达37.76 g·kg^(-1);LM、OF及CLO处理均显著降低了土壤交换性酸含量,降幅最高的处理为CLO,达71.4%。相关性分析表明,土壤交换性氢和交换性铝与pH的回归方程斜率绝对值分别为1.3568和0.1560,均呈显著负相关;LM处理的土壤交换性盐基离子总量达7.52 cmol·kg^(-1),显著高于其他处理,其次为CLO处理,达6.92 cmol·kg^(-1)。配施处理能增加灌浆期水稻叶片叶绿素含量,显著高于CK,增产效果最优。研究表明,有机肥与石灰配施较单独施用对华南酸化土壤的改良效果更好。

关键词：华南酸性土壤有机肥石灰双季稻酸化改良

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Pyoderma Gangrenosum as the Initial Manifestation of Small Cell Lung Cancer with Dermatomyositis

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Chinese Medical Journal 2017年第17期130卷 2132-2133页

作者： Man Li Tian Guan zhang-Lei mu Qian-Xi Xu Lin Cai Xue Chen Department of Dermatology Peking University People&#39 s Hospital Beijing 100044 China Department of Thoracic Surgery Peking University People&#39 s Hospital Beijing 100044 China

To the Editor：A 54-year-old man developed painful ulcers on the neck one month ago,followed by periorbital *** ulcers then spread to his trunk,back,and upper *** had muscle weakness,mild muscle soreness with activity,and dysphagia for foods for the past three *** was diagnosed as drug eruption in a local hospital and received irregular corticosteroids therapy for two ***,the ulcers started to *** had a 40 years＆#39; history of *** patient was emaciation,and physical examination revealed heliotrope sign,poikiloderma involving the face,＆quot;V＆quot; sign of the chest,and the upper arm,nail fold telangiectasia,and large well-defined ulcers on the abdomen,back,and upper arms,there was no Gottron sign [Figure 1].It was hard for him to raise his arms and *** triceps and quadriceps were tender to *** revealed elevated levels of antinuclear antibodies （1：40;normal range,〈1：40）,creatin kinase （382 U/L;normal range,56-244 U/L）,lactic dehydrogenase （254 U/L;normal range,109-245 U/L）,white blood cell （19.71 x 109/L,normal range,3.5-9.5 ＆#215; 109/L）,erythrocyte sedimentation rate （78 mm/h;normal range,0-15 mm/h）,C-reactive protein （117.52 mg/L;normal range,〈8 mg/L）,neurospecific enolase （25.03 ng/ml;normal range,0-16.30 ng/ml）,and electromyography showed muscle *** computed tomography plain and enhanced scan suggested possible malignant tumor in left upper lobe [Figure 1].The biopsy of axillary lymph node showed ＆quot;small cell lung cancer＆quot;.Histopathology of ulcer edge revealed ulceration of the epidermis with a dense neutrophils *** was no organisms or vasculitis [Figure 1].

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Screening of Rice Genes Interacting with p5b of Rice BlackStreaked Dwarf Virus

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Rice science 2013年第3期20卷 185-190页

作者： LU Ying YANG Jian zhang Heng-mu CHEN Jian-ping State Key Laboratory Breeding Base for Zhejiang Sustainable Pest and Disease Control/Key Laboratory of Plant Protection and Biotechnology Ministry of Agriculture/Zhejiang Provincial Key Laboratory of Plant Virology/Institute of Virology and BiotechnologyZhejiang Academy of Agricultural Sciences College of Plant Protection Nanjing Agricultural University

Rice black-streaked dwarf virus （RBSDV） is a recognized member of the genus Fijivirus, family Reoviridae. Its genome has ten double-stranded RNA （dsRNA） segments （$1-$10）, in which the fifth genome segment （$5） contains two open reading frames （ORFs） with a partially overlapping region. The second ORF of RBSDV S5 encodes a viral nonstructural protein named p5b with unknown function. To reveal the function of p5b, its gene was ligated into the bait plasmid pGBKT7 and an expression library containing rice cDNAs was constructed using plasmid pGADT7 for yeast two-hybrid assay. The bait protein p5b was detected in yeast by western blot, and the result of an auto-activation test showed that p5b could not autonomously activate the expression of reporter genes in yeast. Then the bait protein p5b was used for screening the cDNA expression libraries of rice. Gene fragments of some pivotal enzymes involved in photosynthesis, respiration and other important metabolic processes, were identified to interact with p5b in yeast, suggesting that these interactions may play roles in symptom development in infected plants.

关键词： rice black-streaked dwarf virus interaction protein yeast two-hybrid

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