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Geochemical elements in suspended particulate matter of Ensenada de La Paz Lagoon,Baja California Peninsula,mexico:Sources,distribution,mass balance and ecotoxicological risks

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Journal of Environmental Sciences 2024年第2期136卷 422-436页

作者： Sandra soledad m.rales-García Pilar de Acacia Pérez-Escamilla Suresh Babu Sujitha Pichaimani Godwyn-Paulson Andrés Felipe Zuniga-Cabezas muthuswamy Ponniah Jonathan Instituto Politécnico Nacional(IPN) Centro Mexicano para la Producción más Limpia(CMPL)Av.Acueducto s/nCol.Barrio la Laguna TicománDel Gustavo A.MaderoC.P.07340Ciudad de MéxicoMexico Instituto Politécnico Nacional(IPN) Escuela Superior de Ingeniería y Arquitectura(ESIA)Unidad Ticomán***án 600Delg.Gustavo A.MaderoC.P.07340Ciudad de México(CDMX)Mexico Instituto Politécnico Nacional(IPN) Centro Interdisciplinario de Investigaciones y Estudios sobre Medio Ambiente y Desarrollo(CIIEMAD)Calle 30 de Junio de 1520Barrio la Laguna TicománDel.Gustavo A.MaderoC.P.07340Ciudad de MéxicoMéxico

The present study aimed to evaluate multi-element concentrations(Al,As,Ca,Cd,Co,Cr,Cu,Fe,mg,mn,mo,Ni,Pb,Sr)in suspended particulate material(SPm)collected from Ensenada de La Paz(ELP)lagoon,Baja California Sur,mexico in two different periods(September and may)to com.rehend their origin,geochemical behavior,mass transfer and associated ecotoxicological *** 24 hr variation coefficient of volumetric SPm levels were found to be 51.7%in September and 40.5%in may,signifying the effects of oceanic *** calculated enrichment factor(EF)values for all the studied elements were of higher magnitude because of the high surface area and oxide nature of SPm,and in this study,mo had the highest EF of 46.77 probably due to its origin from continental *** the ecotoxicological perspective,the integrated toxic risk index revealed low toxic risk to the benthic ***,the mean-Erm-Quotient calculated using the particulate concentrations of As,Cd,Cr,Cu,Ni,Pb indicated 9%probability of toxicity to *** com.rehensive geochemical and ecotoxicological assessment of particulate metal concentrations in the ELP lagoon signify low to moderate contamination.

关键词： Suspended particulate material Heavy metals risk assessment mass transfer Ensenada de La Paz

Enhanced depth OCT imaging of the lamina cribrosa for 24 hours

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International Journal of Ophthalmology(English edition) 2017年第2期10卷 306-309页

作者： Pedro Naranjo Bonilla rafael Giménez Gómez David ríos Jiménez m.ría Luísa Varas Fabra m.ría del Carmen munoz Villanueva rocío García Catalán Pilar Font Ugalde m.ría soledad poblador fernández JoséLuís Lancho Alonso Josém.ría Gallardo Galera Department of Ophthalmology Reina Sofia University HospitalCordoba 14004Spain methodological Support to research Maimonides Institute for Biomedical ResearchReina Sofia University HospitalCordoba 14004Spain Department of medicine UCO Maimonides Institute for Biomedical ResearchReina Sofia University HospitalCordoba 14004Spain Department of m.rphological Sciences Faculty of MedicineCordoba 14004Spain

The lamina cribrosa thickness（LCT） could be affected by dynamic changes in its *** spectral-domainoptical coherence tomography（SD-OCT）,we have studied the behaviour of the laminar region in 14 young subjects over 24 *** changes in LCT were observed,depending on the time at which the measurement was taken,with the maximum thickness being observed at 7.30 p.m.,and the minimum at 7.30 *** finding could suggests a circadian pattern in the LCT thickness in healthy subjects,which could have implications for the classification,diagnosis and prognosis of both normal and glaucomatous subjects.

关键词： lamina cribrosa laminar region glaucoma optical coherence tomography twenty-four-hours

Clinicopathological differences,risk factors and prognostic scores for western patients with intestinal and diffuse-type gastric cancer

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World Journal of Gastrointestinal Oncology 2022年第6期14卷 1162-1174页

作者： Cristina Díaz del Arco Lourdes Estrada muñoz Luis Ortega medina Elena molina roldán mÁngeles Cerón Nieto soledad García Gómez de las Heras m Jesús fernández Aceñero Department of Surgical Pathology Hospital Clínico San CarlosMadrid 28040Spain Department of Legal medicine Psychiatry and PathologyComplutense University of MadridMadrid 28040Spain Department of Surgical Pathology Hospital Rey Juan CarlosMadrid 28933Spain Department of Basic medical Sciences Rey Juan Carlos UniversityMadrid 28933Spain

BACKGrOUND In the molecular era,the Laurén system is still a cost-effective and widely implemented classification for gastric cancer(GC)and it has been recently associated with clinical,histological and molecular features of these *** recent advances in the understanding of the molecular biology of GC,there is a need to develop new prognostic tools for patient stratification in clinical ***,the identification of easily available prognostic factors in patients with intestinal and diffuse-type tum.rs can significantly im.rove risk assessment and patient stratification in *** To identify clinicopathological differences,risk factors,and to develop costeffective prognostic scores for patients with intestinal and diffuse-type *** retrospective study of all patients undergoing surgery for GC at a tertiary referral center from 2001 to 2019.286 cases met inclusion criteria(intestinal:190,diffuse:96).Clinical data and gross findings were *** specimens were reviewed by two independent pathologists and a detailed protocol for histologic evaluation was *** tissue microarrays(TmAs)were constructed and sections of the TmA block were immunostained for HErCEPTEST,mSH2,mSH6,mLH1 and *** analyses were performed and prognostic scores were developed based on hazard *** Intestinal and diffuse-type GC showed different epidemiological,clinicopathological and prognostic *** tum.rs were significantly associated with younger age,less symptomatology,flat m.rphology,deeper invasion,perineural infiltration,advanced stage at diagnosis,administration of adjuvant therapy and poorer *** lesions were fungoid or polypoid,showed necrosis,desmoplasia,microsatellite instability and HErCEPTEST positivity and were diagnosed at earlier *** depth,desmoplasia,macroscopic type and lymph node involvement were independently related to the Laurén ***,intestinal and diffuse GC were asso

关键词： Gastric cancer Clinicopathological Score Prognosis Laurén molecular

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 m.rio HErNÁndez-GUZmÁN Nina mONTOYA-CIrIACO Luc DENDOOVEN m.rina Olivia FrANCO-HErNÁndez Paulina ESTrADA-DE LOS SANTOS m.ría soledad VÁSQUEZ-m.rrIETA 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

The endophytic mycobiota of Arabidopsis thaliana

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Fungal Diversity 2013年第3期60卷 71-89页

作者： Elena García Ángela Alonso Gonzalo Platas soledad Sacristán Centro de Biotecnología y Genómica de Plantas(UPm-INIA)and E.T.S.I.Agrónomos Universidad Politécnica de MadridCampus de MontegancedoAutopista M40(Km.38)28223 Pozuelo de Alarcón MadridSpain Departamento de Biotecnología E.T.S.I.AgrónomosUniversidad Politécnica de MadridAvda.Complutense s/n28040 MadridSpain Fundación Centro de Excelencia en Investigación de medicamentos Innovadores en Andalucía mEDINA Parque Tecnológico de las Ciencias de la Salud de GranadaAvda del Conocimiento 318100 ArmillaGranadaSpain Instituto de recursos Naturales y Agrobiología Consejo Superior de Investigaciones CientíficasAvenida Reina Mercedes 1041012 SevillaSpain

Fungal endophytes are receiving increasing attention as resources to im.rove crop production and ecosystem ***,the biology and ecological significance of these symbionts remains poorly understood,due to a lack of model systems for m.re efficient *** this work,we have analyzed the culturable endophytic mycobiota associated,in the wild,with leaves and siliques of the model plant *** have studied the effect of biotic and abiotic factors in the frequency of fungal endophytes in plant specimens,and in the species composition of the endophytic *** results indicate that the frequency of Arabidopsis plants hosting endophytes depends on the time of the year and the phenological stage of the plant,and that the probability of endophyte colonization increases as the life cycle of the plant *** diversity of the endophytic assemblages of natural *** populations was high,and precipitation and temperature were the two main factors determining the diversity and species composition of the *** propose *** and its endophytes as a model system for an integral approach to the principles governing the endophytic lifestyle,taking advantage of the molecular tools and the abundant knowledge accessible from the host plant.

关键词： Endophyte mycobiota Arabidopsis Wild populations Ecology

Alternatives of Small-Scale Biorefineries for the Integrated Production of Xylitol from Sugarcane Bagasse

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Journal of renewable materials 2018年第2期6卷 139-151页

作者： Nicolás m.Clauser soledad Gutiérrez m.ría C.Area fernando E.Felissia m.ría E.Vallejos materials Institute of misiones(ImAm) National University of Misiones–National Council of Scientific and Technical Research(UNaM–CONICET)1552 Félix de Azara St.(3300)PosadasMisionesArgentina Faculty of Engineering University of the Republic(UDeLaR)565 Julio Herrera y Reissig St.(11700)MontevideoUruguay

Small-scale biorefinery from sugarcane bagasse offers new possibilities to the sugar and ethanol *** aim of this study was to evaluate the feasibility of a small-scale biorefinery for the production of xylitol from sugarcane *** liquid fraction from the autohydrolysis treatment was selected as the source of sugars for xylitol and two scenarios were analyzed for the residual solid:ethanol or pellet production.A technical-economic analysis of alternatives was *** internal rate of return(Irr)was used to compare the selected *** highest Irr values were obtained when processing 70,000 dry tons per year of *** results showed promising prospects for a small-scale biorefinery with capacities above 20,000 dry tons per year(xylitol and pellets),and above 50,000 dry tons per year(xylitol and ethanol).

关键词： Biorefinery sugarcane bagasse xylitol ethanol pellets

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 m.ryel rEZA-VZQUEZ Sonia GUTIrrEZ-PArEDES m.ría de Jesús DE HArO-CrUZ Jessica mALDONADO-HErNndez Yanely BAHENA-OSOrIO Paulina ESTrADA-DE LOS SANTOS En Tao WANG m.ría soledad VSQUEZ-m.rrIETA 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 em.rging 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. Nm.r1, and microbacterium sp. Nm3E9 facilitated the root development; they significantly im.roved 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

rice Husk Bio-Chars as Adsorbent for methylene Blue and Ethinylestradiol from Water

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Journal of renewable materials 2020年第3期8卷 275-287页

作者： Jonathan Lacuesta Iris Beatriz Vega Erramuspe Liji Sobhana Dennis Kronlund Jouko Peltonen soledad Gutiérrez Pedro Fardim Department of Chemical Engineering University of the RepublicJulio Herrera y Reissig 565Montevideo11300Uruguay Laboratory of Fibre and Cellulose Technology Åbo Akademi UniversityPorthansgatan 3Turku/ÅboFI-20500Finland Laboratory of Physical Chemistry and Center of Excellence for Functional materials Åbo Akademi UniversityPorthansgatan 3Turku/ÅboFI-20500Finland Department of Chemical Engineering KU LeuvenCelestijnenlaan 200FLeuvenB-3001Belgium

Biobased adsorbents are eco-friendly materials used for water and wastewater treatment and air *** research work explores the potential use of rice husk chars as a low-cost adsorbent for pollutants from water,such as methylene blue and *** husk chars are prepared by combustion of rice husks(rH-Char)or pre-treated rice husks(PT-Char).A third char(m-Char)supplied by a local company which uses rice husks as combustion material is also *** chars are characterized by field emission scanning electron microscopy(FE-SEm)in conjunction with energy dispersive X-ray spectroscopy(EDX),X-ray powder diffraction(XrD),and zeta-potential *** three bio-chars are tested as adsorbent for the removal of two wastewater contaminants:methylene blue(mB)and ethinylestradiol(EE2).According to the results,rH-Char and PT-Char present zeta-potential values near−52 mV,whereas m-Char shows a zeta-potential value of−32 *** rH-Char and PTChar are rich in am.rphous SiO_(2) and m-Char has crystalline SiO_(2)(cristobalite).The bio-chars remove mB and EE2 efficiently showing the following results for the adsorption capacity of mB(inμmol g^(−1)):769.2(rH-Char),41.2(PT-Char),and 31.7(m-Char).The adsorption capacity values for EE2(inμmol g^(−1))are:33.1(rH-Char),19.1(PT-Char),and 16.9(m-Char).The information gathered in the present work evidences the potential of rice husks bio-chars for bio-remediation and may in future contribute to the conversion of a side-stream from the rice industry into value-added materials.

关键词： rice husk bio-char thermal treatment adsorption methylene blue ethinylestradiol

multielemental microanalysis in root and Leaves, Growth and Biomass in Tomato Seedling in response to Ca Levels and Induction of Stress: Non-Destructive Spectroscopy

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Open Journal of Applied Sciences 2021年第6期11卷 672-683页

作者： Om.r A. Pérez-Dueñas Fanny Hernández-mendoza Víctor García-Gaytán soledad García-m.rales EI Colegio de michoacán (LADiPA) La Piedad Michoacán Mexico Colegio de Postgraduados Campus Montecillo Texcoco Estado de México México Biotecnología Vegetal CONACYT-Centro de Investigación y Asistencia en Tecnología y Dise&#241 o del Estado de Jalisco México

Tomatoes are one of the main vegetables in the food industry that are consumed fresh and processed. A multi-element microanalysis was performed with the use of scanning electron microscopy (SEm) in conjunction with energy dispersion spectroscopy (EDS), to see changes in nutrient concentration in roots and leaves, as well as fresh and dry biomass in tomato seedlings. Exposed in nutrient solution (NS) with different levels of Ca (control, 25, 50 and 100 mm). The root was put in also to H2O2 for 8 hours to observe the changes that occurred. It was observed that NS with 100 mM Ca in fresh stem biomass and fresh leaf biomass increased by 25% and 38% compared to the control. It was observed that the NS with 100 and 50 mM of Ca, the content of Ca and Cl in foliar tissue increased by 34.50% and 13.15% compared to the control. Treatment with H2O2 and with 25 and 100 mM of Ca at NS increased the height of the seedling and fresh leaf bio-mass by 19.75% and 60.80% compared to the control. The treatment with H2O2 and with the different levels of Ca in the NS increased the content of C, P, K, Ca and Cl in the leaf tissue. Only S was significant for the control. Treatment with H2O2 and 100 mM Ca in the NS increased Ca and Mg by 83.48% and 40.47% for the root compared to the control. The K and Cl in the root was higher in the control treatment by 47.61% and 55% respect to the highest level of Ca. It is concluded that multielemental microanalysis is a powerful, non-destructive, fast and accurate tool for the determination of plant nutrients. Also, it is applicable for the areas like horticulture, physiology and agronomy.

关键词： microanalysis Nutrient Solution Calcium root Leaves Stem