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Endophytic Occupation in Nodules of Rhynchosia Plants from Semiarid Regions of Argentina

Phyton-International Journal of Experimental Botany 2024年第6期93卷 1081-1099页

作者： Cinthia T.Lucero mar.a de los á.ruíz Fabiola Pagliero Carolina Castaño mariela L.Ambrosino Graciela S.Lorda Facultad de Ciencias Exactas y Naturales Universidad Nacional de La PampaRuta Nacional 35km 330Santa RosaLa PampaCP6300Argentina INTA EEA Anguil“Ing.Agr.Guillermo Covas”ruta Nacional 5 km 580AnguilLa PampaCC116326Argentina

Beneﬁcial microbes can improve soil health by promoting soil structure,nutrient cycling,and disease *** addition,a wide array of rhizospheric microbes are responsible for producing metabolically active compounds including various types of plant growth ***,microbial biodiversity studies could contribute to the improvement of agricultural practices in deprived areas,such as the Pampean semiarid *** vast majority of studies conducted on endophytic microorganisms have focused on intensive crop legume *** contrast,little attention has been paid to microorganisms of native legumes,whose ecology is not directly affected by human *** this study,endophytic microorganisms isolated from root nodules of a selected native legume of the genus Rhynchosia were *** isolates were studied with a focus on their plant growth-pro-moting rhizobacteria(PGPR)*** the edaphic characteristics of the Pampean semiarid region,the isolates obtained were evaluated for their ability to grow under three salt stress conditions(50,100,and 200 mM NaCl)and four different pH values(6,7,8,and 9).Based on their PGPR activities,the selected strains were phylogenetically grouped using *** results showed great variability among the isolates in terms of the characteristics *** legumes manifested a wide endophytic variability and remar.able perfor-mance in PGPR *** conclude that they could be used as potential bioinoculants for legume cultivation,an excellent alternative to the use of chemical fertilizers that currently pollute the environment.

关键词： Native strains endophytes PGPR native legumes stress

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Carbon Dioxide/Methane Separation by Adsorption on Sepiolite

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Journal of Natural Gas Chemistry 2007年第3期16卷 235-243页

作者： José A.delgado mar.a A.Uguina José L.Sotelo Beatriz ruíz marcio Rosário department of Chemical Engineering Universidad Complutense de Madrid28040Madrid.Spain

In this work, the use of sepiolite for the removal of carbon dioxide from a carbon dioxide/methane mixture by a pressure swing adsorption （PSA） process has been researched. Adsorption equilibrium and kinetics have been measured in a fixed-bed, and the adsorption equilibrium parameters of carbon dioxide and methane on sepiolite have been obtained. A model based on the LDF approximation has been employed to simulate the fixed-bed kinetics, using the Langmuir equation to describe the adsorption equilibrium isotherm. The functioning of a PSA cycle for separating carbon dioxide/methane mixtures using sepiolite as adsorbent has also been studied. The experimental results were compared with the ones predicted by the model adapted to a PSA system. Methane with purity higher than 97% can be obtained from feeds containing carbon dioxide with concentrations ranging from 34% to 56% with the proposed PSA cycle. These results suggest that sepiolite is an adsorbent with good properties for its employment in a PSA cycle for carbon dioxide removal from landfill gases.

关键词： carbon dioxide methane sepiolite adsorption fixed-bed pressure swing adsorption

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Effect of pH value and calcination temperature on synthesis and characteristics of Cu-Ni nano-alloys

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Transactions of Nonferrous Metals Society of China 2015年第11期25卷 3664-3677页

作者： mar.a de los A.CANGIANO Manuel W.OJEDA mar.a del C.ruIz Research Institute of Chemical Technology (INTEQUI) National University of San Luis-CONICET.Chacabuco y Pedernera

Cu?Ni nano-alloys were prepared using precursors synthesized by the citrate-gel method. The effects of initial solution pH value and calcination temperature on the composition, crystalline structure, purity, morphology, homogeneity and grain size of Cu?Ni nanoparticles were investigated. Both the parameters significantly affect the crystalline structure, composition and grain size. Cu?Ni alloys prepared at pH value of 1 do not contain impurities, and their compositions are Cu0.42Ni0.58, Cu0.45Ni0.55 and Cu0.52Ni0.48 reduced at 300, 400 and 500 °C, respectively. The grain size grows with the increase of calcination temperature for the precursor prepared at pH values of 1.6 and 3. The Ni content of the alloys gradually increases with the increase of calcination temperature at pH value of 3.

关键词： nanostructured Cu-Ni alloys chemical synthesis physicochemical characteristics pH value calcination temperature

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Plant Growth-Promoting Traits in Rhizobacteria of Heavy Metal-Resistant Plants and Their Effects on Brassica nigra Seed Germination

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Pedosphere 2017年第3期27卷 511-526页

作者： Brenda ROMN-PONCE Diana Miryel REzA-VzQUEz Sonia GUTIRREz-PAREdeS mar.a de Jesús de HARO-Cruz Jessica MALDONADO-HERNNdez Yanely BAHENA-OSORIO Paulina ESTRADA-de los SANTOS En Tao WANG mar.a Soledad VSQUEz-MURRIETA Instituto Politécnico Nacional Escuela Nacional de Ciencias Biológicas Prolongación Carpio y Plan de Ayala s/n Col.Santo Tomás Del.Miguel Hidalgo Ciudad de México

Phytoremediation is an emerging technology that uses plants and their associated microbes to clean up pollutants from the soil, water, and air. In order to select the plant growth-promoting rhizobacteria （PGPR） for phytoremediation of heavy metal contamination, 60 bacterial strains were isolated from the rhizosphere of two endemic plants, Prosopis laevigata and Spharealcea angustifolia, in a heavy metal-contaminated zone in Mexico. These rhizobacterial strains were characterized for the growth at different pH and salinity, extracellular enzyme production, solubilization of phosphate, heavy metal resistance, and plant growth-promoting （PGP） traits, including production of siderophores and indol-3-acetic acid （IAA）. Overall, the obtained rhizobacteria presented multiple PGP traits. These rhizoba^teria were also resistant to high levels of heavy metals （including As as a metalloid）（up to 480 mmol L-1 As（V）, 24 mmol L-1 Pb（II）, 21 mmol L-1 Cu（II）, and 4.5 mmol L-1 zn（II））. Seven rhizobacterial strains with the best PGP traits were identified as members of Alcaligenes, Bacillus, Curtobacterium, and Microbacterium, and were selected for further bioassay. The inoculation of Brassica nigra seeds with Microbacteriurn sp. CE3R2, Microbacterium sp. NE1R5, Curtobacterium sp. NM1R1, and Microbacterium sp. NM3E9 facilitated the root development; they significantly improved the B. nigra seed germination and root growth in the presence of heavy metals such as 2.2 mmol L-1 zn（II）. The rhizobacterial strains isolated in the present study had the potential to be used as efficient bioinoculants in phytorremediation of soils contaminated with multiple heavy metals.

关键词： bioinoculants endemic plants mine railings pH phytoremediation salinity

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Nutritional quality and physiological effects of halal meat:A pilot study in non-Muslim consumers

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Food Bioscience 2022年第5期49卷 738-745页

作者： Cristina Carrasco Trinidad Perez-Palacios Luis Miguel Luengo Sergio Gomez Miguel Fajardo mar.a de los Angeles Gomez Ana Beatriz Rodríguez Neuroimmunophysiology and Chrononutrition Research Group Department of Physiology(Faculty of Sciences)University of Extremadura06006BadajozSpain Research Institute of Meat and Meat Products(IProCar) University of Extremadura10003C´aceresSpain Service of Endocrinology and Nutrition University Hospital of Badajoz06006BadajozSpain Service of Clinical Analysis University Hospital of Badajoz06006BadajozSpain Service of Microbiology University Hospital of Badajoz06006BadajozSpain

despite the current controversy,red meat remains essential to the proper functioning of our *** the trend meat products available for consumers,halal meat is becoming an interesting choice,independently of their religious ***,little is known about its nutritional content and possible health *** this reason,a comparative analysis of the physical-chemical and nutritional properties between halal and non-halal meats(beef and lamb)was ***,a pilot study was performed by University of Extremadura analysing the impact of its consumption on body composition,gut microbiota,biomarkers,and antioxidant *** healthier lipid profile founded in halal meat may have had a positive impact on the weight,muscle mass,body fat and antioxidant status of the participants,without altering the gut microbiota and levels of biomarkers such as glucose,insulin,or *** research can help meat consumers to choose healthier and more eco-friendly products.

关键词： Halal meat Lipid profile Body composition gut microbiota Antioxidant status Biomarkers

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Multidisciplinary Approach of a Didactic Strategy for the Second Year of High School

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Journal of Chemistry and Chemical Engineering 2018年第2期12卷 83-86页

作者： mar.a de losángeles Montiel Montoya department of Chemistry National Preparatory School No.4National Autonomous University of MexicoCDMX 11870Mexico

During the chemistry week,“A musical,literary,ecological and chemical show”was performed with the participation of students of 552 and 553 groups of the National Preparatory School of National Autonomous University of *** students had the opportunity to put into action some skills related to reading,research,playing musical instruments and *** document relates each activity with the subjects connected in a transversal way(Greco-Latin etymologies,biology IV,health science,universal literature),previous subjects(aesthetic and artistic education,Spanish literature,geography and history),later subjects(history and Iberoamerican and Mexican literature).This show achieved the symbiosis between natural and social sciences and art in an entertaining learning environment.

关键词： Chemistry high school multidiscipline natural and social sciences arts

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Branching Ratios from H→γγ and H→zγ with a 125 GeV Higgs Boson

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Journal of Modern Physics 2012年第12期3卷 1835-1839页

作者： Alejandro Gutiérrez-Rodríguez mar.a de los Angeles Hernández-ruíz Polet Castaneda-Almanza Alejandro González-Sánchez Facultad de Física Universidad Autonoma de ZacatecasZacatecasMexico Unidad Académica de Ciencias Químicas Universidad Autonoma de ZacatecasZacatecasMexico

Motivated by the recent result reported from LHC on the di-photon search from the Standard Model (SM) Higgs boson, we obtain limits on the anomalous couplings Hγγ and Hzγ. We also perform a calculation at tree level of the decay widths as well as of the branching ratios for the reactions H → γγ and H → zγ in the context of effective lagrangian for Higgs boson masses 115 ≤MH ≤ 130 GeV. We find that the decay widths and branching ratios from these reactions enhanced significantly due to the anomalous Hγγ and Hzγ vertex, which would lead to measurable effects in Higgs signals at the LHC. Moreover, our results complement other studies on the channels H → γγ and H → zγ.

关键词： Standard Model Higgs Boson Models beyond the Standard Model

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Bacterial and archaeal communities in saline soils from a los Negritos geothermal area in Mexico

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Pedosphere 2023年第2期33卷 312-320页

作者： Joseph GUEVARA-LUNA mario HERNÁNdez-GUzMÁN Nina MONTOYA-CIRIACO Luc deNDOOVEN marina Olivia FRANCO-HERNÁNdez Paulina ESTRADA-de los SANTOS mar.a Soledad VÁSQUEz-MURRIETA Escuela Nacional de Ciencias Biológicas Instituto Politécnico NacionalCiudad de México 11340(Mexico) Laboratory of Soil Ecology CinvestavMexico City 07360(Mexico) Centro Tlaxcala de Biología de la Conducta Universidad Autónoma de Tlaxcala.Carretera Federal Tlaxcala-Puebla km.1.5Tlaxcala 90070(Mexico) Unidad Profesional Interdisciplinaria de Biotecnología Instituto Politécnico NacionalCiudad de México 07340(Mexico)

In recent years,there has been a growing need to understand how salinity affects microbial communities in agricultural *** and bacterial community diversities and structures were investigated by high-throughput sequencing analysis of their 16S rRNA in two arable soils with low electrical conductivity(EC)(2.3 and 2.6 dS m^(-1))and a saline soil(EC=17.6 dS m^(-1)).The dominant bacterial phyla in the soils were Proteobacteria(relative abundance(RA)=46.2%),followed by Acidobacteria(RA=13.1%)and Actinobacteria(RA=10.0%),whereas Serratia(RA=6.0%)and Bacillus(RA=4.0%)were the dominant bacterial *** Nitrososphaera(53.5%)was the dominant archaeal phylotype in the arable soils,whereas Nitrosopumilus(RA=0.4%)dominated in the saline *** archaeal and bacterial community structures were different between the soils and significantly correlated with soil sand,arsenic,barium,and antimony contents,but not with soil salinity.

关键词： agricultural soil compositional approach microbial community mud volcano soil salinity soluble anion

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Communication of the Results of the Treatment with Probiotics in Two Cats with Chronic Gingivostomatitis

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Open Journal of Veterinary Medicine 2018年第2期8卷 9-14页

作者： Brian Morales Segovia mar.a de los ángeles Calvo Torras Faculty of Veterinary Medicine Universitat Autònoma de Barcelona (UAB) Cerdanyola del Vallès Spain department of Animal Health and Anatomy Research Group in Applied Microbiology and Environmental Barcelona Spain

Feline chronic gingivostomatitis (GECF) is a disease of unknown etiology and considered as one of the most frequent paradontal diseases in cats of medium and/or advanced age. This problem is aggravated in the case of cats suffering from some immunosuppressive pathology such as feline leukemia virus (FeLV), feline immunodeficiency virus (HIV) or feline panleukopenia virus (VPF), in which the probability of suffering from GECF is increased. There is a wide variety of treatments against GECF but none of them ensures a complete cure of the disease, with signs of recurrence being observed at the month of treatment. For these reasons, in this investigation we have evaluated a strain of Lactobacillus plantarum with probiotic capacity for the preventive and/or therapeutic purpose of this oral pathology in cats. This investigation was performed in accordance with the Institutional Animal Ethics Committee of the Veterinary Faculty of the Autonomous University of Barcelona.

关键词： Feline Chronic Gingivostomatitis Probiotic Lactobacillus plantarum Feline Panleucopenia Feline Leukemia Feline Immunodeficiency

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Relationship of Food Craving Behavior with Body Mass Index and Body Composition in Reproductive Age Females

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Food and Nutrition Sciences 2017年第7期8卷 699-713页

作者： mar.a-de-los-Remedios Moreno-Frías Sonya Chaudhari mar.a-Raquel Huerta-Franco department of Applied Sciences to Work Division of Health Sciences Campus Leon University of Guanajuato Leon Mexico department of Biomedical and Health Informatics University of Missouri-Kansas City School of Medicine Kansas City Missouri USA

Objective: To estimate the relationship of Food Craving (FC) behavior with females’ Body Mass Index (BMI), and body-composition. design, setting and participants: A cross-sectional study of 302 reproductive-age women from middle-socioeconomic class was conducted at the Health & Occupational-Environmental Laboratory. Variable Measures: A FC behavior questionnaire (FCQ) was designed and validated in 151 female subjects. This questionnaire evaluated five dimensions: FC-leisure, FC-psychological reactance, FC-depression, FC-anxiety/stress, and FC-anger. dependent variables were Body Mass Index (BMI, kg/m2) and the body fat mass. Interventions: A second group of 151 women completed the FCQ. Anthropometrical variables were recorded using the International Society for the Advancement of Kinanthropometry procedure. Analysis: A multiple regression-analysis using STAT- ISTICS version 7 was performed to determine the relationship of FC behavior with anthropometrical variables described. Results: We demonstrated that 98.7% of women had FC behavior. Women with higher BMI had higher scores of FC-depressions (p = 0.02) and FC-anger (p = 0.007). Food craving behavior (p < 0.0008), and food psychological-reactance (p = 0.006), were positive predictors of BMI;food psychological reactance was also a positive predictor of upper and lower-body fat mass (p = 0.005) and (p = 0.008), respectively. Conclusion and Implications: The food craving behavior is a common problem in the female population. Food psychological reactance, in addition to another affective alteration that present the population of women are predictor variables for the increase in BMI and in body-fat mass. It is important that health professionals are aware of the affective states of their patients.

关键词： Food Craving Behavior Body Mass Index Body Composition Reproductive Age Females

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