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Paclobutrazol on <i>In Vitro</i>Growth and Development of <i>Zygopetalum crinitum</i>Orchid, and on Seedling Acclimatization

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American Journal of Plant Sciences 2018年第5期9卷 1029-1036页

作者： Renata Gimenes Kathia Fernandes Lopes Pivetta Renata Bachin Mazzini-Guedes marcos vieira ferraz Suzana Targanski Sajovic Pereira águila Silva Santos Ricardo Tadeu de Faria Lívia Caroline Praseres de Almeida Sao Paulo State University—UNESP Jaboticabal Brazil Federal University of Paraná—UFPR Jandaia do Sul Brazil State University of Londrina—UEL Londrina Brazil

In vitro cultivation is a technique that allows the production of great amount of plants. However, significant losses may occur during the acclimatization period (ex vitro stage). The objective of this study was to evaluate the effect of paclobutrazol, in the Murashige and Skoog culture medium, on growth, development, and survival of Zygopetalum crinitum plants. The experimental design (both in vitro and ex vitro) was completely randomized with four treatments: three paclobutrazol concentrations (0.5;1.0;and 1.5 mg L-1 active ingredient) and the control (without PBZ). Morphological changes promoted by the paclobutrazol application were observed in the seedlings;however, it did not result in higher seedling survival rates of the Zygopetalum crinitum orchid.

关键词： Growth Regulator Growth Retardant Triazol Orchidaceae

Indolbutyric Acid and Time of the Year Influence on Rooting of Chrysanthemum Cuttings

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American Journal of Plant Sciences 2018年第3期9卷 507-516页

作者： Marina Romano Nogueira marcos vieira ferraz Amanda Kelly Dias Bezerra Renata Bachin Mazzini-Guedes Carla Rafaele Xavier Costa Lívia Caroline Praseres de Almeida Suzana Targanski Sajovic Pereira Kathia Fernandes Lopes Pivetta Department of Plant Production Sao Paulo State University (Unesp) Jaboticabal Brazil Federal University of Paraná (UFPR) Jandaia do Sul Brazil

The objective of this study was to analyze the effect of the seasons and indol butyric acid (IBA), as well as the preparation of IBA solutions on rooting growth of “Fine Time” chrysanthemum cuttings. The first experiment was arranged in a 4 × 2 factorial scheme: IBA concentrations (0, 1000, 2000 and 3000 mg·L-1) during summer and winter with 4 replicates of two pots and six cuttings per pot. In the second experiment, the storage of IBA solution (1000 mg·L-1) at 15°C was studied with four replicates of 10 cuttings per plot in a period of four weeks. In the third experiment, dilution and supply of IBA (1000 mg·L-1 or 1000 mg·kg-1) were studied;there were eight treatments: (1) IBA mixed with industrial talc;(2) IBA diluted in 50% alcohol and oven dried at 30°C;(3) IBA diluted in 50% alcohol and oven dried at 70°C;(4) IBA diluted in NaOH and supplied via aqueous solution;(5) IBA diluted in acetone and supplied via aqueous solution;(6) IBA diluted in alcohol 92.8% and supplied via alcoholic solution;(7) IBA diluted in alcohol 50% and supplied via alcoholic solution;(8) IBA mixed and supplied via lanolin;with four replicates of 10 cuttings per plot. Twenty-one days after cutting implementation, the following variables were evaluated: rooting percentage, number, average length and root dry mass. Statistical analysis and time-of-year averages were compared using the Tukey test at 5%;polynomial regression for IBA concentration and preparation data. The means of dilution and delivery were compared by the Scott-Knott test. Treatment with IBA at a concentration of 3000 mg·kg-1 resulted in 90% rooting in the winter and 100% in the summer for all treatments. Results suggest the concentration of 2000 mg·L-1 in the summer and 2000 and 3000 mg·L-1 during the winter provided better quality for the root system. Cuttings treated with IBA diluted in 50% alcohol and oven dried at 30°C showed higher number, length and vigor of the roots.

关键词： Dendranthema grandiflora Cutting Asexual Propagation

Computerized geochemical modeling of burial diagenesis of the Eocene turbidite reservoir elements：Urucutuca Formation,Espirito Santo Basin,southeastern Brazil passive margin

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Journal of Palaeogeography 2018年第4期7卷 363-377页

作者： marcos Antonio Klunk Sudipta Dasgupta Rommulo vieira Conceicao Institute of Isotope Geology Federal University of Rio Grande do SulPorto AlegreBrazil Department of Earth Sciences Indian Institute of Technology (IIT) BombayMumbai India

The computerized geochemical modeling, a useful tool to understand the diagenetic processes influencing the quality of hydrocarbon reservoirs, is performed by using different modules of computer codes based on the thermodynamic and chemical kinetic principles and their associated parameters. As observed in the reservoir lithofacies deposited from the marine sediment-gravity flows, a case study of diagenesis is presented here from the Espírito Santo Basin in southeastern Brazil. The study uses the Geochemist＇s Workbench（GWB～（TM））, PHREEQC～（TM） and TOUGHREACT～（TM） computation packages. The comparison of performances of these packages demonstrates the convergence of results from the software-based geochemical modeling with the petrographic observation of dissolution, albitization, kaolinization, and the precipitation of calcite and dolomite. Moreover, with limited data points, e.g., the sedimentary petrographic data acquired from limited number of boreholes, the computer simulation establishes itself to be a powerful quantitative method estimating the degree and type of diagenetic alteration of turbidite reservoir bodies in contact with a source of saline-water influx associated with salt ***, using the limited petrographic data points, the geochemical computer-simulation method can even be utilized and extrapolated for areas where similar geological context is interpreted but no borehole data are available. Hence, porosity of turbidite reservoir lithofacies can be predicted in relation to the spatial distribution of dissolution, kaolinization, and albitization of feldspars and authigenic carbonate precipitation.

关键词： Sandstone diagenesis Computerized diagenetic modeling Turbidite reservoir GWB PHREEQC TOUGHREACT

Endophytic species of Colletotrichum associated with mango in northeastern Brazil

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Fungal Diversity 2014年第4期67卷 181-202页

作者： Willie A.S.vieira Sami J.Michereff marcos A.de Morais Jr Kevin D.Hyde marcos P.S.Camara Departamento de Agronomia Universidade Federal Rural de Pernambuco52171-900 RecifeBrazil Departamento de Genética Universidade Federal de Pernambuco50732-970 RecifeBrazil Institute of Excellence in Fungal Research and School of ScienceMae Fah Luang UniversityChiang Rai 57100Thailand

Endophytic species of Colletotrichum associated with Mangifera indica(mango)are poorly *** this study,Colletotrichum species were isolated from mango in Pernambuco State,*** were significant differences in isolation frequencies of Colletotrichum species among sites and plant *** leaf blades were colonized by most Colletotrichum isolates at the majority of *** sequences of glyceraldehyde-3-phosphate dehydrogenase(GAPDH)of 97 Colletotrichum isolates were amplified as an initial measure of genetic *** analysis with a subset of 22 isolates were performed based on a multilocus dataset(ACT,TUB2,CAL,CHS-1,GAPDH,ITS)followed by Apn2/MAT IGS sequence-analysis for isolates within the *** species *** analysis associated with phenotypic characteristics revealed six previously described species[***,***,***(***),***,*** and ***]and one new *** new species is introduced as *** species isolated were pathogenic on mango fruits but varied in their *** was no distribution pattern of species among sites and plant tissues,although *** was the most prevalent species at all sites and in all plant tissues *** previously reported Colletotrichum species causing anthracnose in mango fruits in northeastern Brazil were also recovered as endophytes.

关键词： Anthracnose Apn2/MAT IGS Distribution Endophytism Phylogeny Polyphasic taxonomy

CeO_(2)-Nb_(2)O_(5)photocatalysts for degradation of organic pollutants in water

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Rare Metals 2020年第3期39卷 230-240页

作者： Nathália Pereira ferraz Andre Esteves Nogueira Francielle Candian Firmino marcos Vanessa Aguiar Machado Rene Rojas Rocca Elisabete Moreira Assaf Yvan Jesus Olortiga Asencios Institute of Marine Science Federal University of Sao PauloSantosSP11030-100Brazil Brazilian Center for Research in Energy and Materials(CNPEM) CampinasSP13083-970Brazil Sao Carlos Institute of Chemistry University of Sao PauloSao CarlosSP13566-590Brazil

The photocatalytic properties of CeO2-Nb2O5 photocatalysts in heterogeneous photocatalysis(under ultraviolet and visible radiation)and in Fenton-like process were *** blue dye(MB)and phenol(Ph)were used as models of pollutant molecules for these reactions,and the photocatalysts were characterized by X-ray diffraction(XRD),diffuse reflectance spectroscopy(DRS),scanning electron microscopy(SEM),energy-dispersive X-ray spectroscopy(EDX)and thermally stimulated luminescence(TL).The results indicated that the addition of CeO2(0.3 wt%,1.0 wt%and 2.0 wt%)to Nb2O5 sensitized the resultant materials,increasing light absorption in the visible ***,there is a suitable formulation of CeO2-Nb2O5 photocatalysts to improve each photocatalytic *** heterogeneous photocatalysis,the addition of small CeO2 quantities to Nb2O5 was enough to improve the photocatalytic activity of CeO2-Nb2O5 photocatalysts(The best composition reported was CeO20.3 wt%.).The effectiveness of the catalyst was explained by the decrease in the number of trapping and luminescence centers in the conduction band of the material after the addition of CeO2 to Nb2O5,but a large amount of CeO2 decreased the number of trapping,luminescent and active centers to a large ***,in a Fenton-like process,the addition of CeO2 to Nb2O5 was favorable in all the proportions studied.(The best composition was 2.0 wt%CeO2.)In this case,the effectiveness was explained by the influence of the adsorption process(adsorption-triggered process),and the interactions between H2 O2 and Ce3+of the CeO2 in each photocatalyst thus formed surface peroxide species O22-,which induced the removal of the organic molecules under visible light.

关键词： Advanced oxidation process Photocatalysts Nb_(2)O_(5) CeO_(2) Phenol Methylene blue

An overview of geological originated materials as a trend for adsorption in wastewater treatment

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Geoscience Frontiers 2022年第1期13卷 457-477页

作者： Yasmin vieira Matias Schadeck Netto Éder C.Lima Ioannis Anastopoulos marcos L.S.Oliveira Guilherme L.Dotto Chemistry Department Federal University of Santa Maria-UFSM1000Roraima Avenue97105-900 Santa MariaRSBrazil Chemical Engineering Department Federal University of Santa Maria-UFSM1000Roraima Avenue97105-900 Santa MariaRSBrazil Institute of Chemistry Federal University of Rio Grande do Sul(UFRGS)P.O.Box 1500391501-970 Porto AlegreRSBrazil Department of Chemistry University of CyprusP.O.Box 20537CY-1678 NicosiaCyprus Universidad de Lima Avenida Javier Prado Este 4600-Santiago de Surco 1503Peru Department of Civil and Environmental Universidad de la CostaCalle 58#55-66080002 BarranquillaAtlánticoColombia

Adsorption is a unit operation widely used for the tertiary treatment of the most diverse effluents,whose mechanism is based on removing recalcitrant compounds from the organic and inorganic *** this process,choosing a suitable adsorbent is a fundamental *** review article focuses on the adsorbents with natural geological origin:minerals,clays,geopolymers,and even wastes resulted from mining ***,over 450 articles and research papers were *** materials’main sources are described,and their characteristics,composition,and intrinsic properties are related to ***,we discuss the effects of several process parameters,such as p H,temperature,pollutant,and adsorbent ***,equilibrium,kinetics,and thermodynamic aspects are also addressed,and relevant regeneration prospects and final ***,some suggestions and perspectives on applying these adsorbents in wastewater treatment are presented as future trends.

关键词： Adsorption Equilibrium Geological-based adsorbents Process parameters Wastewater treatment

Behavior of wood basic density according to environmental variables

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Journal of Forestry Research 2022年第2期33卷 497-505页

作者： Gabriel marcos vieira Oliveira JoséMárcio de Mello Carlos Rogério de Mello JoséRoberto Soares Scolforo Eder Pereira Miguel Thiago Campos Monteiro Brazil Institute of Agricultural and Forestry Defense of Espírito Santo(IDAF) Av.Lourival Lugon Moulinnº300CentroJerônimo MonteiroES CEP:29.550-000Brazil Department of Forestry Sciences Universidade Federal de Lavras-UFLACaixa Postal 3037LavrasMG CEP:37.200-000Brazil Engineering Department Universidade Federal de Lavras-UFLACaixa Postal 3037LavrasMG CEP:37.200-000Brazil Forestry Engineering Department Faculdade de TecnologiaUniversity of Brasilia-UnBCampus Universitário Darcy RibeiroCaixa Postal 4357Asa Norte-BrasíliaDF CEP:70910-900Brazil Department of Forestry Engineering and Technology Universidade Federal do Paraná-UFPRAv.Pref.Lothário Meissner632Jardim BotânicoCuritibaPR CEP:80.210-170Brazil

The relationships between climate conditions and wood density in tropical forests are still poorly *** quantify spatial dependence of wood density in the state of Minas Gerais(MG,Brazil),map spatial distribution of density,and correlate density with climate variables,we extracted data from the Forest Inventory of Minas Gerais for 1988 trees scaled throughout the territory and measured wood density of discs removed from the *** variables were extracted from the database of the Ecological-Economic Zoning of Minas *** spatial analysis,tree densities were measured at 44 georeferenced sampling *** data were subjected to exploratory analysis,variography,cross-validation,model selection,and ordinary *** relationships between wood density and environmental variables were calculated using dispersion matrices,linear correlation,and *** density proved to be highly spatially dependent,reaching a correlation of 96%,and was highly continuous over a distance of 228 *** distribution of wood density followed a continuous gradient of 514-659 kg m^(−3),enabling corre-lation with environment *** was correlated with mean annual precipitation(−0.57),temperature(0.63),and evapotranspiration(0.83).Geostatistical methods proved useful in predicting wood density in native tropical forests with different climate *** results confirmed the sensitivity of wood density to climate change,which could affect future carbon stock in forests.

关键词： Biomass Climate variables Geostatistics Hardwood Forest inventory Minas Gerais

Association between the CYBA and NOX4 genes of NADPH oxidase and its relationship with metabolic syndrome in non-alcoholic fatty liver disease in Brazilian population

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Hepatobiliary & Pancreatic Diseases International 2018年第4期17卷 330-335页

作者： Fabiola Rabelo Jose Tadeu Stefano Ana Mercedes Cavaleiro Rodrigo vieira Costa Lima Daniel ferraz de Campos Mazo Flair Jose Carrilho Maria Lúcia Correa-Giannellac Claudia P.Oliveiraa Departamento de Gastroenterologia Faculdade de Medicina FMUSPUniversidade de Sao PauloSao PauloSPBrazil Hospital das Clinicas HCFMUSP Departamento de GastroenterologiaLIM07Faculdade de MedicinaUniversidade de Sao PauloSao PauloSPBrazil Laboratório de Carboidratos e Radioimunensaio LIM18Hospital das Clinicas HCFMUSP(LIM07)Faculdade de MedicinaUniversidade de Sao PauloSao PauloBrazil Programa de Pos-Graduacao em Medicina Universidade Nove de Julho(UNINOVE)Sao PauloBrazil

Background: Oxidative stress has been implicated in the progression of severe forms of non-alcoholic fatty liver disease(NAFLD). NADPH oxidase produces reactive oxygen species. In the present study, we investigated for the first time two single nucleotide polymorphisms(SNPs) in the regulatory region of genes encoding NADPH oxidase 4(NOX4) and p22 phox(CYBA) in ***: A total of 207 biopsy-proven NAFLD patients [simple steatosis(n = 27); nonalcoholic steatohepatitis(NASH)(n = 180)] were evaluated. Genomic DNA was extracted from peripheral blood cells, and polymorphisms in CYBA(unregistered) and NOX4(rs3017887) were determined by direct sequencing of ***: Associations of CYBA-675 T/A with high-density lipoprotein(HDL)(TT vs TA vs AA; P < 0.01) and triglycerides(TGL)(TT vs XA; P < 0.01) were observed only in NASH patients. For polymorphisms in the NOX4 gene, NOX4(rs3017887) CA + AA genotypes was significant associated with alanine aminotransferase(ALT)(CA + AA vs CC; P = 0.02). However, there was no association of SNPs in the CYBA and NOX4 genes encoding the NADPH oxidase system proteins and the presence of NASH. Regarding the clinical results, it was observed that the most advanced degrees of fibrosis occurred in patients diagnosed with type 2 diabetes mellitus(66.9% vs 37.5%, P < 0.01) and those who were more obese(32.2 vs 29.0 kg/m2,P < 0.01). In addition, serum glucose and insulin levels increased significantly in the presence of ***: There were associations between the presence of the allele A in the NOX4 SNP and a higher concentration of ALT in the NAFLD population; between the presence of the AA genotype in the polymorphism of the CYBA-675 T/A CYBA gene and a higher level of TGL and lower HDL in NASH patients. The presence of metabolic syndrome was associated with advanced degrees of fibrosis in NAFLD patients.

关键词： Non-alcoholic fatty liver disease Nonalcoholic steatohepatitis Genetic polymorphism Metabolic syndrome

Light intensity and hydrogel soil amendment differentially affect growth and photosynthesis of successional tree species

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Journal of Forestry Research 2023年第1期34卷 257-268页

作者： Léo vieira Leonel Fabrício de Oliveira Reis Fábio Afonso Mazzei Moura de Assis Figueiredo Tiago Massi ferraz Sebastiao de Oliveira Maia Júnior Patrick Costa Silva Jailma Ribeiro de Andrade Graduate Program in Agroecology State University of MaranhaoAv.Lourenco Vieira da Silva1000Jardim Sao CristovaoSao LuísMaranhao 65055-310Brazil State University of Maranhao Av.Lourenco Vieira da Silva1000Jardim Sao CristovaoSao LuísMaranhao 65055-310Brazil Graduate Program in Agriculture and Environment State University of MaranhaoPraca Goncalves Diass/nCentroBalsasMaranhao 65800-000Brazil

Global climate changes have increased temperatures,radiation indexes,and consequently,irregularities in rainfall in mainly tropical countries,considerably hindering plant establishment in recovering degraded *** objective of this study was to evaluate the growth and physiological characteristics of one species of each successional group:pioneer,secondary,and climax when subjected to different light intensities and hydrogel as a soil conditioner during rainy and dry *** experiment was conducted in the ecotone between Brazil’s two largest biomes,the Cerrado and the Amazon in the State of Maranh?*** parameters consisted of three species:Guazuma ulmifolia Lam.(pioneer),Astronium fraxinifolium Schott(secondary),and Cariniana rubra Gardner ex Miers(climax).There were two light intensities:70%and 100%,and two planting conditions:with and without soil conditioner(hydrogel).Gas exchanges were higher during the rainy season;the pioneer and secondary species had greater heights and photosynthetic rates in the dry period;the climax species had the lowest gas exchange and lowest recovery as rainfall *** pioneer and secondary species showed higher physiological plasticity,denoting better adaption to environments with high *** improved the photosynthetic performance of these species in the dry season and in areas with 100%sunlight.

关键词： Irradiance Hydrogel Photosynthetic efficiency Physiological plasticity