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The Effects of Host Diversity in Anthracnose Management and Race Composition of Colletotrichum sublineolum in Sorghum Lineage Mixtures

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Journal of Agricultural Science and Technology(B) 2018年第1期8卷 14-28页

作者： Henrique Maia Valério Janete maria Silva Alves maria aparecida resende Elio Gomes Fernandes Carlos Roberto Casela Laboratório de Ecologia de Microrganismos e Microbiologia Ambiental Centro de Ciências Biológicas e da SaúdeUniversidade Estadual de Montes Claros(UNIMONTES)Montes Claros 39401-089MGBrazil Laboratório de Micologia Instituto de Ciências BiológicasUniversidade Federal de Minas Gerais(UFMG)Belo Horizonte 31270-901MGBrazil Embrapa Milho e Sorgo Caixa Postal 151Sete Lagoas 35701-970MGBrazil

Alternative strategies of management of sorghum diseases were implemented using field experiments conducted in Embrapa Maize and Sorghum Research Center,Brazil in 2001 until 2003 to evaluate the efficacy of lineage mixtures of Sorghum bicolor for the control of anthracnose(caused by Colletotrichum sublineolum).The calculated values for disease severity considered the area under the disease progress curve(AUDPC)observed for the nine susceptible and resistant elite strains of sorghum planted in 30 stands *** stand was drawn in mixtures of three genotypes each,in the same proportions per *** design was compared with the severity of the disease measured in AUDPC calculated for each of the same nine strains of sorghum in pure *** most of the cases,the disease severity on the susceptible cultivars was decreased;and in some cases,reached 85%of disease reduction compared with disease progress in pure stand of correspondent *** implication and effect of these sorghum mixtures on the populations of *** on each treatment were evaluated and revealed that there was an increase of frequency of complex races in most of these mixtures and a highest phenotypic diversity for virulence to pathogen populations from pure stands,than the characterized on populations collected from the mixtures,despite of the effectiveness on decrease of the anthracnose severity.

关键词： Sorghum mixtures anthracnose severity virulence diversity simple and complex pathotypes

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Biocidal Effect of Gamma Radiation on the Ecology of Filamentous Fungal Populations Associated with Stone Deterioration

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Journal of Environmental Science and Engineering(A) 2017年第5期6卷 252-259页

作者： Douglas Boniek Isolda de Castro Mendes Antonio Femando Batista dos Santos maria aparecida de resende Stoianoff Department of Microbiology Institute of Biological Sciences Federal University of Minas Gerais-UFMG Belo Horizonte 31270-901 Brazil Department of Chemistry Institute of Exact Sciences Federal University of Minas Gerais-UFMG Belo Horizonte 31270-901 Brazil Faculty of Engineering and Architecture Foundation of Education and Culture of Minas Gerais-FUMEC University Belo Horizonte 30310-190 Brazil

This study focused on the identification of the filamentous fungi associated with soapstone samples exposed to outdoor conditions and the biocidal effect of gamma radiations on isolated fungal populations in Minas Gerais State in Brazil. Two soapstone blocks were placed outdoors under tropical environmental conditions for 12 months. A total of 9 filamentous fungal populations were identified on their surfaces, namely Acremomium （cf.） alternatum, Alternaria alternata, Aspergillusfumigatus, Calcarisporium （cf.） arbuscula, Cladosporium cladosporioides, Curvularia lunata, Epicoccum nigrum, Fusarium equiseti and Penicillium citrinum. The gamma radiation assay was then carried out as a test of biocidal action by exposing all fungal populations to the ionizing radiation. The results showed that only the C. cladosporioides species was resistant to this biocidal agent, since it was able to increase its population post exposure. Scanning electron microscopy images identified the microbial colonization on the soapstone blocks and the stone elementar composition was analyzed by energy dispersive X-ray spectrometry. After treatment, there was no structural and aesthetic alteration in the soapstone samples, and evidencing that gamma radiation can be used as a biocidal agent. However, the resistance of the black fungal population indicates caution in the choice of gamma irradiation as biocidal treatment.

关键词： Gamma radiation biocidal stone ecology filamentous fungi.

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Detection of Delayed Hypersensitivity to Fonsecaea pedrosoi Metabolic Antigen （Chromomycin）in Healthy People in an Endemic Area

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Journal of Life Sciences 2013年第3期7卷 267-275页

作者： Conceiao de maria Pedrozo e Silva de Azevedo Antonio Augusto Moura da Silva Sirlei Garcia Marques Oscar Brufia-Romero Gilnara Fontinelle Silval Cecilia Silva de Lima Flaivia Raquel Femandes do Nascimento maria aparecida de resende Stoianoff Department of Medicine Federal University of Maranh6o S6o Luis City 65604010 Maranh6o Brazil Department of Microbiology Federal University of Minas Gerais Belo Horizonte 31270901 Minas Gerais Brazil

The CBM （chromoblastomycosis） is a disease caused by dematiaceous fungi, which has the species Fonsecaea pedrosoi as main agent. This fungus is found in warm and moist climates, characteristically found in the amazonic lands of the region, where its environmental isolation was once described. This research aimed to identify the healthy population exposed to agent F. pedrosoi in four villages located in the Legal Amazon. In order to clarify the risk factors for allergic immune exposure, a survey was conducted by the technique of delayed skin reaction （IDR） with the metabolic antigen （chromomycin） in 449 healthy individuals. The results showed that 14.9% （67 subjects） were IDR positive, with induration 〉 5 mm. Multivariate analysis with logistic regression for risk factors： living in the village of Z6 Pedro （municipality of Bacabeira in the state of Maranhao, Brazil）,

关键词： Fonsecaeapedrosoi chromomycin risk factor.

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Effect of Environmental Factors on Rock-inhabiting Fungal Communities from Brazilian Soapstone Samples

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Journal of Environmental Science and Engineering(B) 2017年第2期6卷 55-71页

作者： Douglas Boniek Lorena Vivien Neves de Oliveira Noelly de Queiroz Ribeiro Christiane Abreu Oliveira Paiva Ubiraci Gomes de Paula Lana Antonio Femando Batista dos Santos maria aparecida de resende Stoianoff Post-Graduate Program in Microbiology Institute of Biological Sciences Federal University of Minas Gerais UFMG BeloHorizonte 31270-901 Brazil Embrapa Milho Sorgo Brazilian Agricultural Research Corporation Sete Lagoas 35701-970 Brazil Faculty of Engineering and Architecture Foundation of Education and Culture of Minas Gerais Belo Horizonte 30310-190Brazil Department of Microbiology Institute of Biological Sciences Federal University of Minas Gerais UFMG Belo Horizonte31270-901 Brazil

The present study aims to evaluate the environmental effect on fungal community composition associated with biodeterioration occurring in stones （soapstone） at two distinct locations in Minas Gerais State, Brazil： Congonhas city and Sanctuary of Cara^a. Four collections of fungal communities over one year were obtained from both research sites from the soapstone block surfaces exposed for over two decades. The molecular diversity profile of the fungal community at the two localities was obtained by DGGE （Denaturing Gradient Gel Electrophoresis）, and the genomes of the most representative population were sequenced. DGGE showed the formation of two clusters with filamentous fungal communities. Sequencing of the most representative bands revealed the presence of fungi associated with the biodeterioration of soapstone. In addition, many of the identified species were associated with photobionts that could generate lichens, indicating that environmental characteristics affect the occurrence of filamentous fungi, which leads to biodeterioration of stones. Authors＇ study focused on an environmental variation of an extreme habitat for fungi associated with soapstone in the state of Minas Gerais, Brazil and identified the presence of interesting rock-inhabiting fungal communities including species related to lichens, which can accelerate the deterioration of stones by the production of organic acids.

关键词： Fungal community biodeterioration soapstone cultural heritage Minas Gerais state.

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Rare earth metal as a dopant element:Cerium ion as an articulator in hexavalent chromium removal by magnetic iron oxides

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Journal of Rare Earths 2023年第10期41卷 1616-1626,I0006页

作者： Pricila maria Batista Chagas Maísa M.M.Lima Aline aparecida Caetano Lucas Bragança Carvalho Nayra maria de Abreu Piva maria Eduarda resende Luiz Iara do Rosário Guimarães Laboratory of Environmental Catalysis and New Materials Department of ChemistryFederal University of LavrasCEP 37200-900LavrasMGBrazil Department of Viticulture&Enology University of CaliforniaDavisCA95616USA Institute of Science and Technology São Paulo State University18087-180SorocabaBrazil

This study highlights introducing the rare earth metal cerium(Ce(Ⅳ))into the structure of magnetite(Fe_(3)O_(4))to achieve enhanced adsorptive properties for the removal of chromium(Cr(VI))from an aqueous *** ratios of Ce(Ⅳ)were introduced into the iron oxide matrix,termed FeCe-5,FeCe-10,and *** numerical values correspond to the nominal content of the dopant element added to the synthesis *** solid materials were characterized for morphology and chemical structure,and N_(2)physical adsorption/desorption measurements were *** solid materials doped with Ce(IV)have a high surface area compared to Fe_(3)O_(4),and the solid material with the highest content of the dopant ion(Ce(IV))has a 4-fold greater surface *** increase in the dopant content in the iron oxide structure leads to a total chromium removal of 93.3%.Isotherms studies on the solid materials show that chromium adsorption follows the Langmuir *** adsorption capacity to Fe_(3)O_(4)is 12.59 mg/g and FeCe-10 is 22.49 mg/g at 35℃.By fitting the kinetic and isothermal models,it is found that for the Fe_(3)O_(4)and FeCe-10 materials Cr(VI)removal occurs in very different ways,attributed to the different surface areas and compositions of the oxide,with the formation of the goethite(α-FeOOH)*** FeCe-10reuse process was performed and the removal capacity the Cr(VI)is reduced after the first *** result is attributed to a strong and irreversible adsorption of Cr(VI)on the FeCe-10.

关键词： Bimetallic oxides Fe-Ce interaction Oxygen vacancies Adsorption Cr(Ⅵ) Rare earths

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Analysis of the genotoxic potential of low concentrations of Malathion on the Allium cepa cells and rat hepatoma tissue culture

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Journal of Environmental Sciences 2015年第10期27卷 102-111页

作者： Jaqueline Bianchi Mario Sérgio Mantovani maria aparecida Marin-Morales Department of Biology Institute of BiosciencesSao Paulo State University(UNESP) Department of General Biology Biological Science CentreUniv Estadual de Londrina

Based on the concentration of Malathion used in the field, we evaluated the genotoxic potential of low concentrations of this insecticide on meristematic and F1 cells of Allium cepa and on rat hepatoma tissue culture（HTC cells）. In the A. cepa, chromosomal aberrations（CAs）, micronuclei（MN）, and mitotic index（MI） were evaluated by exposing the cells at 1.5,0.75, 0.37, and 0.18 mg/m L of Malathion for 24 and 48 hr of exposure and 48 hr of recovery time. The results showed that all concentrations were genotoxic to A. cepa cells. However,the analysis of the MI has showed non-relevant effects. Chromosomal bridges were the CA more frequently induced, indicating the clastogenic action of Malathion. After the recovery period, the higher concentrations continued to induce genotoxic effects, unlike the observed for the lowest concentrations tested. In HTC cells, the genotoxicity of Malathion was evaluated by the MN test and the comet assay by exposing the cells at 0.09, 0.009, and0.0009 mg/5 m L culture medium, for 24 hr of exposure. In the comet assay, all the concentrations induced genotoxicity in the HTC cells. In the MN test, no significant induction of MN was observed. The genotoxicity induced by the low concentrations of Malathion presented in this work highlights the importance of studying the effects of low concentrations of this pesticide and demonstrates the efficiency of these two test systems for the detection of genetic damage promoted by Malathion.

关键词： HTC Chromosomal aberration Micronuclei Comet assay Pesticide

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Microbial lipases:Propitious biocatalysts for the food industry

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Food Bioscience 2022年第1期45卷 34-44页

作者： Cleonice aparecida Salgado Clarissa Isabela aparecida dos Santos maria Cristina Dantas Vanetti Department of Microbiology Universidade Federal de Viçosa(UFV)ViçosaMGBrazil

Lipases(triacylglycerol acylhydrolases,EC 3.***.1.3)are one of the largest groups of enzymes and are used in various industrial *** of microbial origin are currently receiving increased attention for industrial application as microorganisms grow quickly and are easily genetically ***,they offer several advantages,such as catalysis of diverse reactions,high specificity,high yields,low energy consumption and reduced processing time and production *** is a relentless ongoing effort to optimise the production of microbial lipases for potential application in the food *** this context,this review highlights the most promising techniques for producing microbial lipases and the recent applications of these lipases in dairy,oils and fats,bakery and confectionery,meat,flavours and aromas and other food *** lipases are normally obtained by fermentation,but the high costs of carbon and nitrogen sources limit the *** overcome this problem,low-cost agro-industrial residues in the lipase production process are *** obtain lipases with high yields and improved characteristics,the technique of protein engineering is described as promising,and the immobilization method that allows the recycling of lipases to improve their catalytic performance is *** to their catalytic properties and versatility,lipases of microbial origin are considered extremely important catalysts in the food industry,meeting the demand for tastier foods with pleasant aromas and ***,microbial lipases are considered safe and sustainable biocatalysts.

关键词： Microbial lipases Food industry Agro-industrial residue

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Neotropical mustelids: fecal metabolome diversity and its potential for taxonomic discrimination

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Integrative Zoology 2023年第3期18卷 518-529页

作者： Lana resende de ALMEIDA Marina Amaral ALVES Ana maria Obino MASTELLA Rafael GARRETT maria João Ramos PEREIRA Bird and Mammal Evolution Systematics and Ecology LabPrograma de Pós-Graduação em Biologia AnimalUniversidade Federal do Rio Grande do SulPorto AlegreRio Grande do SulBrazil Programa de Pós-Graduação em Biologia Animal Universidade Federal do Rio Grande do SulPorto AlegreRio Grande do SulBrazil Chemistry Institute Metabolomics Laboratory(LabMeta–LADETEC/IQ–UFRJ)Avenida Horácio MacedoFederal University of Rio de JaneiroRio de JaneiroRJBrazil Walter Mors Institute of Research on Natural Products Universidade Federal do Rio de JaneiroRio de JaneiroRJBrazil

Chemical proﬁles of non-invasive biological material,such as feces,have great potential to study elusive animals or those with low population ***,we use a metabolomic approach to evaluate Neotropical mustelids as a biological model to describe the diversity of the metabolites present in fecal samples,as well as to evaluate the potential of chemical proﬁles for taxonomic *** collected fecal samples from captive individuals of 5 species of mustelids occurring in Brazil and analyzed them by liquid chromatography coupled to high-resolution mass *** 200 compounds have been annotated;“bile acids,alcohols and derivatives”was the most expressive class in the metabolome of all the *** successfully discriminated 3 taxonomic groups:1—tayra(Eira barbara);2—otters(Lontra longicaudis and Pteronura brasiliensis;1);and 3—grisons(Galictis vittata and Galictis cuja).Several compounds seemed to be associated with food intake and the digestive process,while others were found for theﬁrst time in Neotropical *** concluded that mustelids show high metabolome diversity and that species-speciﬁc identiﬁcation through metabolomic proﬁles is possible,thus contributing to the development and implementation of additional non-invasive approaches in the study of mustelids.

关键词： chemical proﬁles ecology high-resolution mass spectrometry metabolomics Mustelidae

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Fruits and Pseudofruits Can Aid in the Quality of Life of Individuals with Chronic or Other Diseases

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Food and Nutrition Sciences 2024年第11期15卷 1170-1199页

作者： maria aparecida Nicoletti University Pharmacy-FARMUSP Faculty of Pharmaceutical Sciences University of So Paulo So Paulo Brazil

The article contains a list of 25 structured technical sheets on fruits and pseudo-fruits that will serve as guidance in improving the quality of health of people, whether with chronic diseases or not. The technical sheets contain data related to the composition, active ingredients, interaction with medication, health conditions in which they may be useful in health care by various health professionals and references used to structure the material referring to each fruit or pseudo-fruit.

关键词： Fruit Composition Interactions Nutrients Health Care

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MicroRNAs expression influence in ulcerative colitis and Crohn's disease:A pilot study for the identification of diagnostic biomarkers

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World Journal of Gastroenterology 2021年第45期27卷 7801-7812页

作者： Ana Elisa Valencise Quaglio Felipe Jose Santaella maria aparecida Marchesan Rodrigues Ligia Yukie Sassaki Luiz Claudio Di Stasi Laboratory of Phytomedicines Pharmacology and Biotechnology(PhytoPharmaTec)Department of Biophysics and PharmacologySão Paulo State University(Unesp)Institute of BiosciencesBotucatu 18618-689São PauloBrazil Department of Pathology Botucatu Medical SchoolSao Paulo State University(Unesp)Botucatu 18618-687São PauloBrazil Department of Internal Medicine Botucatu Medical SchoolSão Paulo State University(Unesp)Botucatu 18618-687São PauloBrazil

BACKGROUND Inflammatory bowel disease(IBD)comprises two distinct diseases,Crohn’s disease(CD)and ulcerative colitis(UC),both of which are chronic,relapsing inflammatory disorders of the gastrointestinal tract with a mostly unknown *** incidence and prevalence of IBD are continually increasing,indicating the need for further studies to investigate the genetic determinants of these *** microRNAs(miRNAs)regulate protein translation via complementary binding to mRNA,discovering differentially expressed miRNAs(DE)in UC or CD patients could be important for diagnostic biomarker identification,assisting in the appropriate disease differentiation progressing the understanding of IBD *** To determine the miRNA expression profile in UC and CD patients and the potential pathophysiological contributions of differentially expressed *** A total of 20 formalin-fixed paraffin-embedded colonic samples were collected from the Pathology Department of Botucatu Medical School at São Paulo State University(Unesp).The diagnosis of UC or CD was based on clinical,endoscopic,radiologic,and histological criteria and confirmed by histopathological analysis at the time of *** TaqMan™Array Human MicroRNA A+B Cards Set v3.0(Applied Biosystems™)platform was used to analyze 754 *** of DE-miRNAs were predicted using miRNA Data Integration Portal(mirDIP)and the miRNA Target Interaction database(MiRTarBase).All statistical analyses were conducted using GraphPad Prism *** and nonparametric data were analyzed using t-tests and Mann-Whitney U tests,*** The results showed that of the 754 miRNAs that were initially evaluated,643 miRNAs were found to be expressed in at least five of the patients who were diagnosed with either CD or UC;the remaining 111 miRNAs were not considered to be expressed in these *** expression levels of 28 miRNAs were significantly different between the CD and UC patients(P≤0.05

关键词： Crohn’s disease Ulcerative colitis Inflammatory bowel disease miRNA Differential diagnosis Biomarker

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