检索结果-南通市图书馆

Agronomic evaluation of Herbaspirillum seropedicae strain ZAE94 as an inoculant to improve maize yield in Brazil

Pedosphere 2021年第4期31卷 583-595页

作者： Gabriela C.ALVES Carlos L.R.dos santos Jerri E.ZILLI Fabio B.dos REIS JUNIOR Ivanildo E.MARRIEL Farley A.da F.BREDA Robert M.BODDEY Veronica M.REIS Federal Rural University of Rio de Janeiro Department of Soilskm 7 BR 465Seropédica RJ 23900-000(Brazil) Federal University of Mato Grosso 2367 Fernando Corrêa Costa AvenueBoa Esperança M 78060-900(Brazil) Embrapa Agrobiology km 07 BR 465Seropédica RJ 23891-000(Brazil) Embrapa Cerrados BR-020 km 18Planaltina DF 73310-970(Brazil) Embrapa Maize and Sorghum MG 424 km 45Sete Lagoas MG 35701-970(Brazil)

Diazotrophic bacteria applied as a seed inoculant can improve the grain yield of several crops including maize. The current study aimed to test the agronomic efficiency and contribution of biological nitrogen fixation(BNF) of the endophytic diazotroph Herbaspirillum seropedicae strain ZAE94 to maize under field conditions. Eighteen field assays were conducted in four different locations during consecutive years on two hybrids and two varieties of maize in a random block design with four replicates using a peat-based inoculant. The inoculant containing the ZAE94 strain was applied without nitrogen(N)fertilization or with 40 kg N ha^(-1) and was compared to the application of 40 and 80 kg N ha^(-1) without inoculation. Crop productivity and N accumulation in the grain were evaluated in addition to ^(15)N natural abundance(δ^(15)N) to evaluate BNF in the treatments without N fertilization. Fertilization at 40 kg N ha^(-1) plus bacterial inoculation produced crop yields similar to the treatment with 80 kg N ha^(-1) and increased grain N content, especially in the off-season with 40 kg N ha^(-1). The inoculation treatments showed lower δ^(15)N values than the non-inoculated treatments, which was most evident in the off-season. The BNF contributed about 30% of N accumulated in plants inoculated with ZAE94. On average, 64% of the N fertilized plots showed an increase of the parameters evaluated in the inoculated treatments, compared with the control. Inoculation also increased root length, root volume, and leaf area, and these parameters were positively correlated with plant weight using a hydroponic assay. This study revealed that the application of H. seropedicae inoculant increased the amount of N in plants owing to BNF, and there is a better chance of yield response to inoculation under low N fertilizer application in the off-season.

关键词： agronomic efficiency biological nitrogen fixation endophytic diazotroph inoculation 15N natural abundance plant growth-promoting bacteria

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

Allelopathic Potential of Wheat on Sourgrass Resistant to Glyphosate

引用

American Journal of Plant Sciences 2015年第7期6卷 891-898页

作者： Marcio Akira Ito Germani Concenco Rodolpho Freire Marques Sabrina Alves dos santos Maxwell Eliezer dos santos Alves Waggner gomes Palharini Thais Stradioto Melo Laryssa Barbosa Xavier Silva Larissa Tagara Linhares Samara Emerim Concenco Sustainable Cropping Systems Embrapa Western AgricultureDouradosBrazil Federal University of Grande Dourados UFGDDouradosBrazil University of Grande Dourados UNIGRANDouradosBrazil University Anhanguera DouradosBrazil Federal Institute of Santa Catarina Santa Rosa do SulBrazil

We aimed with this study to assay the allelopathic potential of wheat genotypes in inhibiting germination and initial growth of sourgrass (Digitaria insularis) resistant to the herbicide glyphosate. Two experiments were installed under greenhouse conditions: the first one aimed to assay the potential of wheat genotypes in inhibiting emergence and initial growth of two test plants, and the second aimed to evaluate the potential of those wheat genotypes which performed better at the first experiment, inhibiting the emergence and initial growth of sourgrass biotypes resistant to the herbicide glyphosate. Five doses of aqueous cool-extracted extract from 32 wheat genotypes were applied to tomato and cucumber (Experiment 1) aiming to identify the ones with higher inhibitory effect. The five most inhibitory wheat genotypes were selected for Experiment 2, where the same doses of extract were applied on sourgrass. For both experiments, shoot fresh and dry mass, as well as water content, were assessed. Sourgrass germination is affected by wheat extracts, but initial seedling growth seems not to be affected;wheat genotypes differ in terms of their allelopathic potential in inhibiting sourgrass germination;wheat presents little inhibitory effect on sourgrass.

关键词： Triticum aestivum Digitaria insularis Herbicide Resistance 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

Composite with Recyclable Loads for the Manufacture of Blocks to Build Popular Houses

引用

Journal of Mechanics Engineering and Automation 2014年第9期4卷 716-720页

作者： Luiz Guilherme Meira de Souza Flavio Anselmo Silva de Lima Luiz Guilherme Vieira Meira de Souza Natanaeyfle Randemberg gomes dos santos Jailton Weber gomes Department of Mechanical Engineering Universidade Federal do Rio Grande do Norte Natal 59078-970 Brazil

The science space in a state school in Natal city was built using a composite consisting of gypsum, EPS （expanded polystyrene）, shredded tire, cement and water. Mechanical and thermal resistances were evaluated. Inside the blocks, three types of fillings （EPS plates, aluminum cans and 500 mL bottles of mineral water） were placed in order to obtain a walls with higher thermal resistance, but also to give it an ecologically correct order, considering that both the tire and the EPS occupy a large space in landfills and require years to be degraded when released into the environment. Compression tests were conducted according to the rules. The experiments demonstrated that the temperature difference between the internal and external surfaces on the walls reached levels above 12.0 ℃. It was also demonstrated that the proposed composite has adequate mechanical strength to be used for sealing walls. The proposed use of the composite can contribute to reduce the significant housing deficit of Brazil, producing popular houses at low cost and with little time to work.

关键词： Solar composite low cost thermal resistance mechanical resistance materials reuse housing.

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

(In)visibilities About the Vulnerabilities of People with Visual Impairments to Disasters and Climate Change:A Case Study in Cuiabaá,Brazil

引用

International Journal of Disaster Risk Science 2022年第1期13卷 38-51页

作者： Giselly gomes Victor Marchezini Michele Sato Federal University of Mato Grosso(PPGE/UFMT) CuiabaMT 78060-900Brazil ICEMAT-Institute of the Blind of the State of Mato Grosso CuiabaMT 78058-340Brazil Cemaden-National Early Warning and Monitoring Center of Natural Disasters Avenida Altino BondesanDistrito de Eugenio de MeloSao Jose dos CamposSP 12247-016Brazil Doctorate Program on Earth System Science National Institute for Space ResearchSao Jose dos CamposBrazil Programa de Pos-Graduaao em Desastres Naturais ICT/Unesp-CemadenSao Jose dos CamposBrazil

People with visual impairments(PwVI)represent a heterogeneous social group who often experience significant disabling barriers in exercising their rights throughout their life *** dimensions of vulnerability of PwVI to disasters and climate change is an important issue to reduce the culture of neglected *** date,few studies have analyzed visual impairment and disaster risk reduction(DRR)in the countries of Latin America and the *** exploratory qualitative research project analyzed how to include PwVI in the DRR policies of *** research question is:how can we include PwVI in the discussion of DRR and climate change?The response to this question is part of a joint effort that involved a university,a hazard monitoring agency,and three institutions that work with *** three main results of the project are:(1)a mapping method to identify the exposure of PwVI to landslides and floods,and to create tactile risk maps tailored to them;(2)incorporating the voices of PwVI regarding their vulnerabilities and capacities with respect to disasters and climate change,achieved through shared interaction during 15 face to face interviews and one workshop attended by 100 people;and(3)an initiative of inclusive education to reduce some of the disabling barriers that intensify vulnerability.

关键词： Brazil Climate injustice Disaster risk Environmental education Inclusive education Sight impairment

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

Implementation of Quick HIV Tests in a Basic Health Unit in the Town of Santa Cruz-RN:Experiment Experienced by the PRO/PET-Saude Students

引用

Health 2015年第13期7卷 1782-1787页

作者： Ana Rafaela Dantas dos santos Ana Mayara gomes de Sousa Fernanda Diniz de Sá Adriana gomes Magalhaes Fábia Barbosa de Andrade Higo Luiz Amorim Belo Maia Faculty of Health Sciences of Trairi(FACISA) Federal University of Rio Grande do Norte(UFRN)Santa CruzBrazil

This article is about a report of the experiment of PRO/PET-Saúde students in the anti-HIV tests implementation in the town of Santa Cruz-RN. The goal is to report the importance and discuss the aspects of the moment experienced above inside the basic health unit in the town of Santa Cruz-RN. The experience occurred in the months from February to March 2014 and they were conducted within 8 hours per week. This way, it is observed that the period lived made possible great reflection about the making of the examination in the pre-natal appointment routines, cataloguing challenges which come up during their adequacy within the services. Lastly, the action developed aimed for the aggregation of an active learning process in the search for a critical sense in the experienced practice, allowing and prioritizing the basic health unit as a scope of reference and counter-reference in the public health service, increasing concrete answers and the needs of the population, guaranteeing an adequate service delivery and strengthening the SUS more and more. The insertion of students through the PRO/PET-Saúde-Rede Cegonha enables a reorientation of professional formation, from the integration between service and teaching.

关键词： Pregnant Student Teaching-Service HIV Tests Vertical Transmissions

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

ID7 Isolated from Bauhinia variegata Stem Inhibits Tumor Progression and Metastatic Mechanisms of Triple Negative Breast Cancer in Vivo

引用

Journal of Pharmacy and Pharmacology 2019年第7期7卷 368-384页

作者： Kamilla Monteiro dos santos Izabela Natalia Faria gomes Renato JoséSilva Oliveira Fernanda E.Pinto Bruno Oliveira Fabrício P.Batista Rafael Cesar Russo Chagas Hélio B.santos Ralph G.Thomé Wanderson Romao Rui Manuel Reis Maria Luiza Vilela Oliva Rosy Iara Maciel de Azambuja Ribeiro Laboratory of Experimental Pathology Federal University of Sao Joao del-Rei(UFSJ)DivinópolisMGBrazil Josédo Rosário Vellano University UnifenasDivinópolisMGBrazil Molecular Oncology Research Center(CPOM) Barretos Cancer HospitalBarretosSPBrazil Petroleomic and Forensic Chemistry Laboratory Department of ChemistryFederal Institute of Espírito Santo(IFES)VitóriaESBrazil Chemistry Department Federal University of Sao PauloBrazil Tissue Processing Laboratory Federal University of Sao Joao del-Rei(UFSJ)DivinópolisMGBrazil Life and Health Sciences Research Institute(ICVS) Medical SchoolUniversity of MinhoBragaPortugal 3ICVS/3B’s-PT Government Associate Laboratory GuimaraesBragaPortugal

Background:The breast cancer has been the most common form of cancer among *** triple negative subtype represents 20%of all breast cancer cases in the world and is standing out by affecting young women and being *** main cause of death of patients with cancer is due to metastasis,which can reach the liver and ***:The activities of ID7 fraction of the stems of Bauhinia variegata *** breast cancer,lung metastasis and liver inflammatory process were ***:ID7 was characterized by *** viability of murine mammary cells(4T1)treated with ID7 was assessed by MTT,trypan blue and fluorescence assay and viability of BT-20,MDA-MB-231 and MCF-7 human breast cancer tumor lines by *** cell migration,invasion using matrigel and adhesion were *** expression of cell death proteins was quanitified by western blot and the gelatinases by *** ID7 activity of the tumor(4T1)and metastatic progession in vivo was ***:ID7 reduced the 4T1 and MDA-MB-231viability and increased the late apoptosis,inhibited the 4T1 migration and invasion,increased the 4T1 adhesion and decreased the secreted active ***7 also increased the expression of PARP,caspase-7 and caspase-8,RIP and *** vivo,the ID7 decreased the volume and weight of the tumors and decreased lung metastasis and inflammation in the *** characterization showed mainly the presence of oleic acid,myricetin,quercetin and kaempferol in ***:Thus,it was found that ID7 fraction exhibits selective antitumor and on the mechanisms of breast cancer metastasis activity,preventing lung metastasis and inflammation in the *** is suggested that fatty acids and flavonoids are correlated with such activities.

关键词： 4T1 cells MDA-MB-231 medicinal plants kaempferol gelatinases apoptosis cell viabilty in vivo

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

Chemical Composition of the Cashew Apple Bagasse and Potential Use for Ethanol Production

引用

Advances in Chemical Engineering and Science 2012年第4期2卷 519-523页

作者： Flávia Cristina dos santos Lima Flávio Luiz Honorato da Silva Josivanda Palmeira gomes José Mariano da Silva Neto Department of Chemical Engineering Center of Sciences and TechnologyFederal University of Campina GrandeCampina GrandeBrazil Department of Chemical Engineering Center of TechnologyFederal University of ParaibaJoao PessoaBrazil Department of Agricultural Engineering Center of Science and TechnologyFederal University of Campina GrandeCampina GrandeBrazil

On the world scene, the energy requirements are mainly based on fossil fuels, however, these compounds reserves are finite and their exploitation has caused serious environmental problems. As a consequence, the demand for alternative renewable sources has been intensified in substitution the rising demand for energy and raw materials. The biomass is emerging as one of the few sources that have potential to meet these challenges of sustainability, as is currently the largest energy resource in the world, and only carbon-rich material available on the planet, apart from fossils. Form, the cashew crop has great potential for technological development of alternative sources of energy, from its industrial waste processing cashew adding value to the product. In this sense, this paper aims to study the characterization of the cashew apple bagasse and to verify (by acid prehydrolysis) the potential of this material for ethanol production. Initially it was carried out physicochemical characterization of cashew bagasse used (pH, moisture content, soluble solids, sugars, cellulose, hemicellulose and lignin). Following it was carried prehydrolysis at 105℃ for 1h to obtain fermentable sugars. Analyses of the samples were carried out on HPLC the results showed the saccharification of biomass with glucose (1537.49 mg/L), xylose (3823.22 mg/L) and arabinose (7131.11 mg/L) as well as the capacity of the biomass for ethanol production.

关键词： Pre-Hydrolyze Ethanol Cashew Apple Bagasse

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

Joannesia princeps： Evaluation of Aqueous Extracts Genotoxicity Utilizing Allium cepa Assay and Micronucleus Test

引用

Journal of Life Sciences 2013年第12期7卷 1249-1254页

作者： Viviane Moreira de Lima Jessica Tamara dos santos Teixeira Jennifer Vieira gomes Lelio Kallut Almeida Netto Leonardo Oliveira Bastos Hataanderson Luiz Cabral dos santos Lenicio Gongalves Francisco de Assis da Silva Bruno Pereira Berto Helcio Resende Borba Department of Animal Biology Federal Rural University of Rio de Janeiro Seropddica Rio de Janeiro 23890000 Brazil

Evaluation of the genotoxic and cytotoxic potentials is a part of the analysis process where plant products with therapeutic properties must be submitted for being safely employed, mainly through long time points, doannesia princeps, also known as ＂cotieira＂ has been used on popular medicine as laxative and several diseases treatment. Aiming to analyze genotoxic potential ofd. princeps leaves extract, Allium cepa assay and micronucleus test were employed. No genotoxic activity presented J. princeps leaves extract; however, extracts cytotoxic activity over A. cepa meristematic cells and mice marrow cells was observed. J. princeps leaves extract presented antiproliferative activity at concentrations and systems employed indicating their therapeutic potential for cellular cycle inhibition. Moreover, results showed that in regard to its mutagenic effect, usage of J. princeps leaves tea on popular medicine has been a safe procedure, as well.

关键词： Cytotoxicity genotoxicity Allium cepa assay micronucleus Joannesia princeps.

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

Agronomic Performance of Cultivars of Upland Rice in the Southern of the Region of Rondonia,Brazil

引用

Agricultural Sciences 2014年第6期5卷 513-518页

作者： Edimar Rodrigues Soares Robertt Fernandes Laercio da Silva Londero Diego Lopes dos santos Samara Cristina Sampaio Correa Everton Augusto Sampaio Correa Remy Carvalho dos santos Ariel Pereira gomes Leandro Galon Fabiana Ferreira Pires Rosilene da Silva Goncalves Department of Soil Science Sao Paulo State University(UNESP)JaboticabalBrazil Department of Agronomy Federal Institute of Education Science and Technology of Rondonia(IFRO)Colorado do OesteBrazil Department of Agronomy College Amazon(FAMA)VilhenaBrazil Agronomist Federal University Mato Grosso(UFMT)CuiabáBrazil Department Herbology Federal University of the Southern Border South(UFFS)ErechimBrazil

The upland rice is grown in most Brazilian states. However, in many of them the yield obtained is low. The choice of cultivar more suited to a particular environment can contribute to increased productivity of this crop. This research aimed to evaluate the performance of a hybrid cultivar of upland rice (Ecco) and five conventional cultivars (BRS Monarca, BRS Primavera, AN Cambará, BRS Sertaneja and BRS MG Curinga) in two environments (Vilhena and Cerejeiras). The tests were conducted in the agricultural year 2010/2011. We evaluated the following characteristics: tillering, panicle number per unit area, number of filled grains per panicle sterile, mass of grains per panicle, 1000 grain weight, grain yield (kg·ha-1) and whole grain yield. There was no cultivar x environment interaction for all traits. Greater tillering, higher panicle number per area, higher productivity and yield of whole grains in the municipality of Cerejeiras were observed, while the highest number of sterile grains per panicle was obtained in Vilhena. The hybrid Ecco highlighted in relation to all other cultivars is in relation to tillering, panicle number per area and grain yield. The municipality of Cerejeiras is the most suitable for the cultivation of upland rice.

关键词： Oryza sativa L. Hybrid Upland Rice Genotype x 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

Prevalence of Methicillin-Resistant <i>Staphylococcus aureus</i>in Raw Hamburgers and Ready-to-Eat Sandwiches Commercialized in Supermarkets and Fast Food Outlets in Brazil

引用

Food and Nutrition Sciences 2015年第14期6卷 1324-1331页

作者： Claudia Patrícia álvarez Contreras Lis Nery Nunes da Silva Dilza Caroline gomes Ferreira Jeane dos santos Ferreira Rogeria Comastri de Castro Almeida Department of Food Science Nutrition School Federal University of Bahia Salvador Brazil

Although well known, Staphylococcus aureus is a bacterium that remains widely studied because of its high pathogenic potential and its ability to develop resistance to antibiotics routinely used in clinical practice. The present study investigated the occurrence of methicillin-resistant Staphylococcus aureus (MRSA) in hamburgers and sandwiches sold in supermarkets and fast food outlets in Salvador, BA, Brazil. Fifty samples of frozen raw hamburgers (25: beef and 25: chicken) and 50 samples of ready-to-eat sandwiches (25: beef and 25: chicken) were collected and investigated for the presence of MRSA. MRSA was present in 32% of the hamburgers and 8% of the sandwiches. The frequency of MRSA was higher in the samples containing chicken meat. However, the statistical analysis showed no association between MRSA presence and the type of meat investigated (P > 0.05). The high prevalence of MRSA in hamburgers and the presence of the microorganism in ready-to-eat sandwiches are worrying and indicate the need for better control during food preparation to prevent the spread of bacteria.

关键词： Methicillin-Resistant Staphylococcus aureus Hamburgers Sandwiches Food Safety

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：