检索结果-南通市图书馆

Identification of heat shock cognate protein 70 gene （Alhsc70） of Apolygus lucorum and its expression in response to different temperature and pesticide stresses

引用

Insect Science 2016年第1期23卷 37-49页

作者： Yang Sun Jing Zhao Yang Sheng Ying-Fang Xiao Yong-Jun Zhang Li-Xin Bai Yongan Tan Liu-Bin Xiao Guang-Chun Xu Institute of Plant Protection Jiangsu Academy of Agricultural Sciences Nanjing China Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant Protection Chinese Academy of Agricultural Sciences Beijing China Entomology and Nematology Mid-Florida Research and Education Center University of Florida Apopka Florida USA

Heat shock cognate protein 70 （Hsc70） is a very important stress-resistance protein of insects against environmental stresses. We employed fluorescent real-time quan- titative polymerase chain reaction and Western-blot techniques to analyze the transcrip- tional and translational expression profiles of AIHSC70 under extreme temperature （4℃ and 40℃） or 4 pesticide stresses in Apolygus lucorum. The results showed that the expres- sion of AIHSC70 were significantly induced by cyhalothrin or extremely high temperature （40℃） in both transcriptional and translational levels （P 〈 0.05）, while the transcriptional and translational level of AIHSC70 decreased significantly in treatments of chlorpyrifos or extreme cold temperature （4℃）（P 〈 0.05）. Moreover, afterApolygus lucorum treated by imidacloprid or emamectin benzoate, the expression of AIHSC70 was only up-regulated significantly at the transcriptional level （P 〈 0.05）, although obviously up-regulated at the translational level of AIHSC70. Therefore, this study confirmed that the Alhsc70 gene played important roles in response to both temperature and pesticide stresses, especially for cyhalothrin or extremely high temperature （40℃）. In addition, the significant polynomial regression correlations between temperature and the Alhsc70 expression level were shown in all the nymph and adult stages （P 〈 0.01）, indicating temperature was an important factor to affect the relative expression of Alhsc70.

关键词： Apolygus lucorum expression files extreme temperature hsc70 pesticide

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Role of penehyclidine in acute organophosphorus pesticide poisoning

引用

World Journal of Emergency Medicine 2020年第1期11卷 37-47页

作者： Shi-yuan Yu Yan-xia Gao Joseph Walline Xin Lu Li-na Zhao Yuan-xu Huang Jiang Tao An-yong Yu Na Ta Ren-ju Xiao Yi Li Department of Emergency Medicine Peking Union Medical College HospitalPeking Union Medical College and Chinese Academy of Medical SciencesBeijingChina Department of Emergency Medicine the First Affi liated Hospital of Zhengzhou UniversityZhengzhouChina Accident and Emergency Medicine Academic Unit Prince of Wales Hospitalthe Chinese University of Hong KongHong KongChina Department of Emergency Medicine the Fourth Affi liated Hospital of Jishou UniversityHuaihuaChina Department of Emergency Medicine the First Affi liated Hospital of Zunyi Medical UniversityZunyiChina Department of Emergency Medicine Chifeng Municipal HospitalChifengChina Department of Emergency Medicine Xingyi People's HospitalXingyiChina

BACKGROUND:Penehyclidine is a newly developed anticholinergic *** aimed to investigate the role of penehyclidine in acute organophosphorus pesticide poisoning(OP)***:We searched the Pubmed,Cochrane library,EMBASE,Chinese National Knowledge Infrastructure(CNKI),Chinese Biomedical literature(CBM)and Wanfang *** controlled trials(RCTs)recruiting acute OP patients were identifi ed for *** outcomes included cure rate,mortality rate,time to atropinization,time to 60%normal acetylcholinesterase(AchE)level,rate of intermediate syndrome(IMS)and rate of adverse drug reactions(ADR).RESULTS:Sixteen RCTs involving 1,334 patients were identifi *** with the atropineor penehyclidine-alone groups,atropine combined with penehyclidine significantly increased the cure rate(penehyclidine+atropine ***,0.97 vs.0.86,RR 1.13,95%CI[1.07–1.19];penehyclidine+atropine ***,0.93 vs.0.80,RR 1.08,95%CI[1.01–1.15])and reduced the mortality rate(penehyclidine+atropine ***,0.015 vs.0.11,RR 0.17,95%CI[0.06–0.49];penehyclidine+atropine ***,0.13 vs.0.08,RR 0.23,95%CI[0.04–1.28]).Atropine combined with penehyclidine in OP patients also helped reduce the time to atropinization and AchE recovery,the rate of IMS and the rate of *** with a single dose of atropine,a single dose of penehyclidine also signifi cantly elevated the cure rate,reduced times to atropinization,AchE recovery,and rate of ***:Atropine combined with penehyclidine benefi ts OP patients by enhancing the cure rate,mortality rate,time to atropinization,AchE recovery,IMS rate,total ADR and duration of *** combined with atropine is likely a better initial therapy for OP patients than atropine alone.

关键词： Penehyclidine Organophosphorus pesticide poisoning Meta-analysis

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Modeling the fate of paddy field pesticide in surface water and environmental risk assessment

引用

Journal of Environmental Sciences 2000年第3期12卷 337-343页

作者： LI Shi\|yu 1, Tohru Morioka 2 (1. Institute of Environmental Science, Zhongshan University, Guangzhou 510275, China. E-mail: eeslsy@*** 2.Department of Environmental Engineering, Osaka University, Yamada oka 2 1, Suita, Osaka 565, Japan. E- 中山大学广东广州 51 0 2 75 Osaka University 日本 Osaka 56 5

The risk of drinking water is greatly concerned because of the large amount of pesticide applied to paddy field and the contamination of drinking water sources due to the runoff. A mathematical model is developed, based on the mass balance, to predict the fate of paddy field pesticides from application, runoff and mixing in a river, taking account of the physical chemical properties and processes of volatilization, degradation, adsorption and desorption. The model is applied to a river basin in Japan to estimate the contaminant level of several popularly used pesticides at the water intakes. The health risk in drinking water induced by each pesticide concerned is estimated and evaluated by comparing with the acceptable daily intake values(ADI) and with that induced by trihalomethanes. An index to evaluate the total risk of all pesticides appearing in water is proposed. The methods for risk management are also discussed.

关键词： modeling pesticide paddy field environmental risk assessment drinking water

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Solar Photocatalysis of A pesticide in A Tubular Reactor on Titaniferous Sand as A New Semi-Conductor

引用

Advances in Chemical Engineering and Science 2023年第2期13卷 119-131页

作者： El Hadji Moussa Diop Kalidou Ba Mamadou Faye Alpha Ousmane Toure Falilou Mbacké Sambe Water Energy Environment and Industrial Processes Laboratory (LE3PI) Higher Polytechnic/Cheikh Anta Diop University Dakar Senegal School of Industrial and Biological Engineering Dakar Senegal

This present study comes in addition to overcome the problems of separation of fine particles of TiO2 in heterogeneous photocatalysis after treatment. It aims to show the potential for using titaniferous sand as a new semiconductor under solar irradiation. The photocatalytic efficiency of this titaniferous sand was tested on a pesticide (Azadirachtin). A tubular photocatalytic reactor with recirculation of the polluting solution was designed for the elimination of the pesticide in an aqueous solution. Before its use as a photocatalyst, the titaniferous sand has undergone a specific treatment that consists of calcination at 600℃ followed by extraction of the calcined natural organic materials, which can interfere with the measurement of analytical parameters such as COD. The titaniferous sand was also characterized by X-ray fluorescence spectroscopy (XRF). XRF analyses have shown that TiO2 is predominant in the titaniferous sand with a percentage that has been estimated at 46.34%. The influence of various experimental parameters such as the flow rate of the polluting solution, the concentration of titaniferous sand, the presence of oxygen and the intensity of the overall rate of sunshine, was studied to optimize the photocatalytic degradation of the pesticide. The results showed that the highest removal rate (70%) was observed under the following conditions: a pH of 6, a titaniferous sand concentration of 150 g/L, a flow rate of 0.3 mL/min, and a sunshine rate of 354 W/m2 and in the presence of atmospheric oxygen. Under these experimental conditions, the rate of photodegradation of the pesticide follows the pseudo first order kinetic model of Langmuir Hinshelwood with a coefficient of determination R2 of 0.9869 and an apparent rate constant of 0.0029 min-1. The results clearly demonstrated the potential of titaniferous sand as a photocatalyst sensitive to sunlight for the effective removal of pesticides in the aq

关键词： Solar Energy Heterogeneous Photocatalysis Sand Titaniferous Titanium Dioxide pesticide

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Potential Risks to the Environment as a Result of pesticide Handling in the Nanumba-North Municipality, Ghana

引用

Journal of Agricultural Chemistry and Environment 2023年第2期12卷 65-83页

作者： Fusheini Yakubu Kenneth B. Pelig-Ba Samson A. Abagale Lateef Adebayo Oseni Department of Chemistry and Biochemistry C. K. Tedam University of Technology and Applied Sciences Navrongo Ghana

The present study deduced the potential risks to the environment as a result of pesticide handling in the Nanumba-North Municipality of the Northern Region of Ghana. Cluster sampling was used to select 30 communities from Nanumba-North Municipality. Simple random sampling and purposive sampling were used respectively to select 7 households from each community and one farmer from each household, giving a sample size of 210 farmers. The instrument used for the study was a questionnaire of respondents. The quantitative data obtained were analyzed using frequencies and percentages. The study concluded that 11 types of pesticides are commonly used by the farmers on their fields, with atrazine (22%) being the most commonly used pesticide which is an herbicide, and deltamethrin (1%) was the least used pesticide which is an insecticide. The study, therefore, recommends that appropriate authorities in the area should inculcate means to enlighten farmers on the best way of pesticide utilization that can beef up the ambition of sustainable agricultural production and desirable environmental conditions.

关键词： pesticide Risk Nanumba-North Municipality Environment

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Effect of Particle Size and pesticide Contamination on Preference and Ingestion Rates by the Tropical Freshwater Shrimp Xiphocaris elongata

引用

Open Journal of Ecology 2023年第4期13卷 183-198页

作者： Wesley X. Torres-Pérez Omar Pérez-Reyes Department of Environmental Sciences College of Natural Sciences University of Puerto Rico San Juan USA

In tropical streams, freshwater shrimp are essential to preserve the structure and function of lotic ecosystems. Shredder shrimp play a fundamental role in organic matter decomposition because these feed on detritus. In addition, they are especially important organisms as they connect all trophic levels at food webs. In natural environments, decaying leaf material may accumulate contaminants, including insecticides and herbicides. At these, shredder shrimp can be exposed to these contaminants through ingestion of leaf litter material. The objectives of this study were to evaluate if the shredder shrimp Xiphocaris elongata display a preference for feeding on different plant species and leaf size areas while also assessing their consumption of leaves contaminated with pesticides. We also evaluated acetylcholinesterase (AChE) activity as a possible biomarker of pesticide contamination using an immunofluorescence and microscopy imaging approach. Our results revealed that the leaf area and plant species more appropriate for future toxicological studies is Spathodea campanulata leaves, with a leaf area of 0.65 cm2. This study also showed that sublethal concentrations of malathion and permethrin in leaves seem to have a significant effect on the ingestion rates of X. elongata, which suggests that the presence of these contaminants influenced feeding behavior. Immunofluorescence in cephalothorax ganglia showed a decline in AChE activity when the sublethal dose of malathion and permethrin increased. The observed results suggest that AChE activity can be used as a biomarker to detect and assess permethrin and malathion exposure on shredder shrimp.

关键词： Malathion Permethrin pesticide Puerto Rico Spathodea Toxicology

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Neuroprotective effect of Spilanthes acmella Murr. on pesticide-induced neuronal cells death

引用

Asian Pacific Journal of Tropical Medicine 2017年第1期10卷 35-41页

作者： Wilasinee Suwanjang Bongkot Khongniam Sujittra Srisung Supaluk Prachayasittikul Virapong Prachayasittikul Center for Research and Innovation Faculty of Medical TechnologyMahidol University Department of Chemistry Faculty of ScienceSrinakharinwirot University Center of Data Mining and Biomedical Informatics Faculty of Medical TechnologyMahidol University Department of Clinical Microbiology and Applied Technology Faculty of Medical TechnologyMahidol University

Objective: To investigate protective effects of Spilanthes acmella(S,acmella) Murr,extracts against pesticide-induced neuronal cells death and to elucidate the underlying molecular mechanism in dopaminergic(SH-SY5Y) cells lines,Methods: Cell viability of SH-SY5 Y cells was studied by treating the cells with various concentration of pirimicarb for 24 hr,Neuroprotective effect of S,acmella Murr,extracts was investigated by adding the plant extracts to the medium for 24 hr prior to the incubation with 100 μM H_2O_2 or with pirimicarb for 24 hr,Control-untreated cells were incubated with the culture medium,Cell viability was measured by MTT assay,calpain and calpastatin expressions were analyzed by Western blotting and immunocytochemistry,Results: Pretreatment of SH-SY5 Y cells with S,acmella Murr,extracts(1 μg/m L) for 24 hr significantly increased the dopaminergic neurons in pirimicarb-induced neurotoxicity,In addition,pretreatment with the S,acmella Murr,extracts led to decreased calpain but increased calpastatin protein levels,Conclusion: S,acmella Murr,extracts exerted neuroprotective effect,via an alteration of calcium homeostasis,against pirimicarb induced neurotoxicity,The S,acmella Murr,might be a potential natural candidate with neuroprotective activity.

关键词： Spilanthes acmella Murr. Pirimicarb pesticide Neuronal cell Calpain Calpastatin

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Assessment of buffer zone for aquatic organisms in pesticide application

引用

International Journal of Agricultural and Biological Engineering 2016年第5期9卷 227-234页

作者： Nigar Yarpuz-Bozdogan Vocational School of Technical Sciences University of CukurovaAdana 01350Turkey

In pesticide applications,the buffer zone helps to protect water sources against pesticide *** 2014,in the Adana province,the percentage of herbicides used was approximately 12%in corn,sunflower,soybean and *** control the weeds,fifteen active ingredients(a.i.)were used in these crops in *** *** acetochlor,aclonifen,benfluralin,bromoxynil,clethodim,dicamba,fluazifop-p-butyl,foramsulfuron,linuron,mesotrione,nicosulfuron,oxyfluorfen,prometryn,trifluralin and *** aim of this study was to assess the risk of these herbicides on aquatic organisms and estimate buffer zone distances for the above agricultural crops in herbicide *** index(RI)values were calculated according to German Drift Model(GDM)and Dutch Drift Model(DDM).Consequently,buffer zone needs for herbicide application of five a.i.,namely acetochlor,benfluralin,linuron,prometryn,and trifluralin,were determined in this *** showed that acetochlor *** the highest risk to aquatic organisms and needs a buffer zone distance of more than 57 meters in sunflower *** was assessed that buffer zone distances should be more than 1.32 m for linuron in soybean,3.5 m for benfluralin in sunflower,4.13 m for prometryn(1.5 kg a.i./hm^(2))in sunflower and 4.19 m for trifluralin in cotton and soybean,and 5.54 m for prometryn(2.0kg a.i./hm^(2))in *** was no need for a buffer zone in corn.

关键词： buffer zone pesticide herbicide risk index cotton sunflower corn soybean

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Analysis of pesticide Residues in Vegetables by Enzyme Inhibition Colorimetric Kit

引用

Asian Agricultural Research 2022年第8期14卷 28-31,38页

作者： Jie ZHANG Gang ZHANG Zhanbin SHEN Lumei DUAN Wei ZHANG Junxia LUO Jianbo ZHAO Zhengzhou Agricultural Product Quality Testing and Distribution Center Zhengzhou 450006China Zhengzhou Agricultural Technology Extension Centre Zhengzhou 450006China Henan Hengsheng Testing Technology Co. Ltd.Xinzheng 451100China

[Objectives]The paper was to understand the detection effect of commercial enzyme inhibition colorimetric kit.[Methods]Six brands of kits were used to detect pesticide residues in *** detection results were compared with those of 50 kinds of organophosphorus pesticides and 10 kinds of carbamate pesticides detected by chromatography and mass *** to different thresholds,the test results of different kits were evaluated,and the false positive rate,false negative rate and coincidence rate of each kit were *** test results of commercial enzyme inhibition colorimetric kits were compared and analyzed.[Results]The detection effect of kit D was the best among the 6 brands of kits,and the coincidence rate was the highest under the 7 *** was a certain relationship between the detection effect of commercial enzyme inhibition colorimetric kit and the determination threshold of positive *** false positive rate decreased with the increase of determination threshold,and the false negative rate increased with the increase of determination threshold,but the coincidence rate with chromatography and mass spectrometry can not reach 100%.When the threshold was set to 20%,the effect was the *** coincidence rate of 3 brands of kits with the results of chromatography and mass spectrometry was the highest,and none of the 6 kits involved in the comparison had the lowest coincidence rate under this threshold.[Conclusions]It is suggested to modify the threshold values in national standard and trade standard.

关键词： Kit pesticide False positive False negative Accuracy Determination threshold

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Rules of pesticide Use for Food Crop Diseases and Pests: A Concise Diagram Based on Correspondence Analysis

引用

Agricultural Biotechnology 2022年第5期11卷 57-64,71页

作者： Xiaojie YANG Shaohua ZHANG Weizheng LI Huaisen XING Guohui YUAN College of Plant Protection Henan Agricultural UniversityZhengzhou 450002China Henan Key Laboratory for Creation and Application of New pesticides Zhengzhou 45002China

In order to ensure food security, the selection of pesticide must take into account the controlling effect and economy in the chemical control of food crop diseases and pests. Although China has registered a large number of pesticides and fungicides on food crops, traditional statistical methods cannot treat the complex relationships between crops, pests and diseases, as well as pesticides. To this end, the correspondence analysis was used to mine the data of pesticides being registered after January 1, 2010 for the prevention and control of pests and diseases on wheat, corn, and rice in China, in order to reveal the general rules of pesticide use for the prevention and control of grain crop pests and diseases and to provide scientifically recommended pesticide regimens.(1) Recommended pesticides for wheat diseases and pests: For underground pest control, phoxim, diazinon or clothianidin is recommended;imidacloprid is recommended for aphid control;avermectin is recommended for mite control;chlorpyrifos is recommended for midge control;the pesticides for rust control could be selected according to the order of epoxiconazole>flutriafol>kresoxim-methyl>cyproconazole≈hexaconazole;tebuconazole is recommended for the prevention and control of smut;difenoconazole is recommended for the simultaneous occurrence of take-all, smut and sheath blight;it is recommended to use carbendazim or thiophanate-methyl for the control of scab;and triazolone or pyraclostrobin is recommended for the control of powdery mildew.(2) Recommended pesticides for corn diseases and pests: For the control of underground pests, fipronil, carbosulfan or chlorpyrifos are recommended;thiamethoxam is recommended for control of planthoppers and corn aphids;Bacillus thuringiensis or phoxim is recommended for control of corn borers;pyraclostrobin is recommended for the control of northern leaf blight;tebuconazole is recommended for the control of head smut;and fludioxonil+metalaxyl-M is recommended for the co

关键词： Food crop Wheat Corn Rice Fungicide pesticide Correspondence analysis pesticide use rules

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：