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Suppression Effects on Pineapple Soil-Borne Pathogens by Crotalaria juncea,Dolomitic Lime and Plastic Mulch Cover on MD-2 Hybrid Cultivar

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Phyton-International Journal of Experimental Botany 2021年第4期90卷 1205-1216页

作者： Luis Alfonso Aguilar Pérez Daniel NietoÁngel Moisés Roberto Vallejo Pérez Daniel Leobardo Ochoa Martínez david espinosa victoria Andrés Rebolledo Martinez Abel Rebouças São José Fitopatología Colegio de PostgraduadosMontecillo-Texcoco56230México CONACyT-Universidad Autónoma de San Luis Potosí CIACYTSan Luis Potosí78000México Edafología Colegio de PostgraduadosMontecillo-Texcoco56230México Instituto Nacional de Investigaciones Forestales Agrícolas y PecuariasVeracruz94270México Rebouças São José A.UESB/DFZVitória da Conquista95Brasil

The development and implementation of sustainable and environmentally friendly agricultural practices are indispensable as alternatives to pesticide use and to keep populations of soil-borne plant pathogens at levels that do not affect crop *** present research evaluates the incidence of soil-borne phytopathogens on the pineapple variety MD-2,which was subjected to different treatments:Incorporation of Crotalaria juncea into the soil(organic amendment),application of dolomitic lime to soil(inorganic amendment),and the use of plastic mulch covering the *** the crop cycle(15 months),the following variables were evaluated:plant height(cm),fruit weight(kg·plant^(−1)),crop yield(ton·ha^(−1)),the bud root disease incidence caused by Phytophthora nicotianae,number of soil phytoparasitic nematodes and colony-forming-units(CFUs)of soil fungi and *** results indicate that Crotalaria juncea treatment reduced the pathogen population(nematode and oomycetes)at levels that did not affect crop development,so that yield increased(18–20%).The incorporation of *** into the soil as an organic amendment favors the populations of fungi disease suppressors(Trichoderma-Aspergillus).The phytoparasitic nematodes(Meloidogyne sp.,Pratylenchus sp.,and Mesocriconema sp.)and oomycetes(Phytophthora spp.,and Pythium spp.)showed a reduction of their population levels by effects of organic amendment(***).The plastic mulch was also effective,probably due to the maintenance of optimal condition to crop growth and weed ***,the dolomitic lime application had the poorest effect under the conditions of the study area on the variables *** described observations are characteristics of a system-based approach for the potential management of soil-borne pathogens of pineapple MD-2 in Veracruz,México.

关键词： Suppressive soil integrated pest management Phytophthora nicotiannae Phytoparasitic nematodes

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Historical relationships of the Mesoamerican highlands,with emphasis on tropical montane cloud forests:a temporal cladistic biogeographical analysis

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Journal of Mountain Science 2023年第1期20卷 129-140页

作者： CASTRO-TORREBLANCA Marisol espinosa david BUENO-HERNANDEZ Alfredo LUNA-VEGA Isolda Biological Sciences Graduate Program Coordination of Graduate StudiesNational Autonomous University of MexicoUniversity CityCoyoacán04510Mexico CityMexico Comparative Biology and Biodiversity Research Unit Facultad de Estudios Superiores ZaragozaNational Autonomous University of MexicoAv.Batalla del 5 de mayo s/nCol.Ejército de Oriente09230Mexico CityMexico Laboratory of Biogeography and Systematics Department of Evolutionary BiologyFaculty of SciencesNational Autonomous University of MexicoUniversity CityCoyoacán04510Mexico CityMexico

The historical relationships of nine areas of endemism of the tropical montane cloud forests(TMCFs)were analysed based on a temporal cladistic biogeographical *** cladistic biogeographical analyses were conducted based on 29cladograms of terrestrial taxa by partitioning them into three time-slices,namely,Miocene,Pliocene,and *** results showed different area relationships over *** the Miocene and Pliocene time slices,the Isthmus of Tehuantepec acted as a geographic barrier that fragmented the TMCFs into two portions:west of the Isthmus and east of the *** the case of the Pleistocene,the TMCFs were broken into two portions,one related to the Neotropical region and the other to the Nearctic ***,the analyses allowed us to detect the influences of different geological and paleoclimatological events on the distribution of the TMCFs over ***,the TMCFs current distribution might have been driven by geological events during the Miocene-Pliocene,whereas climatic fluctuations have the highest impact during the Pleistocene.

关键词： Dispersal Evolutionary biogeography Paralogy free subtree analysis Vicariance

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Determination of Soil Aggregate Porosity Using the Modified Water Saturation Method

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Pedosphere 2019年第6期29卷 794-800页

作者： david MORET-FERNáNDEZ María victoria LóPEZ Departamento de Suelo y Agua Estación Experimental de Aula Dei Consejo Superior de Investigaciones Científicas (EEAD-CSIC)

The need to find a simple method for measuring soil aggregate porosity (φ) is justified by the growing interest of researchers in this important parameter of soil physical status. The aim of this study was to present a simple method (AM) for estimating the total 0 of a single soil aggregate. In this case, soil aggregate 0 was calculated as the quotient between the pore volume, estimated from the weight of the aggregate saturated with ethanol, and the total volume (V T ) of aggregate, calculated from the particle density and dry aggregate weight. The V T estimated with AM was compared with the corresponding volume measured with the photogrammetry (PHM) technique using soil aggregates of 8–16 mm in diameter and collected from three different tillage systems: conventional tillage (CT), reduced tillage (RT), and no tillage (NT). Next, the AM was used to study the effects of the tillage system on soil aggregate φ. Although a strong relationship ( R 2 = 0.99, P < 0.000 1) between aggregate V T measured with PHM and that estimated with AM was obtained, AM tended to underestimate aggregate V T with an average deviation of 2.85%. This difference may be due to ethanol evaporation during the first 10 s before the ethanol-saturated aggregate was weighed. The use of AM to determine the effects of different tillage systems on aggregate φ showed that this method was sensitive to detect significant differences among the tillage treatments. The results showed that AM could be an accurate, simple, and inexpensive alternative to estimate φ of a single soil aggregate.

关键词： Aggregate stability Bulk density Particle density Photogrammetry technique Tillage system

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A good gut feeling on Sarml-mediated axon degeneration

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Protein & Cell 2021年第8期12卷 596-598页

作者： victoria E.von Saucken david J.Simon Department of Biochemistry Weill Cornell Medical College1300 York AvenueNew YorkNY 10065USA Tri-lnstitutional MD-PhD Program Weill Cornell MedicineRockefeller UniversityMemorial Sloan Kettering Cancer Center1300 York AvenueNew YorkNY 10065USA

Axons,the cable-like projections of neurons,experience a wide range of stressors throughout their *** result of any one of these challenges can be catastrophic,promoting degeneration of the *** degeneration is an active signaling process observed in traumatic brain injury,chemotherapy-induced peripheral neuropathies,and neu-rodegenerative disease(Simon and Watkins,2018;Coleman and Hoeke,2020).

关键词： degeneration chemotherapy traumatic

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Diversity, Endemism and Conservation of Ferns(Polypodiales) in the Mexican Mountain Component

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Journal of Mountain Science 2015年第4期12卷 891-904页

作者： SANGINéS-FRANCO Celia LUNA-VEGA Isolda CONTRERAS-MEDINA Raúl espinosa david TEJERO-DíEZ José Daniel RIVAS Gerardo Laboratorio de Biogeografía y Sistemática Departamento de Biología Evolutiva Facultad de Ciencias Universidad Nacional Autónoma de México (UNAM) Escuela de Ciencias Universidad Autónoma "Benito Juárez" de Oaxaca (UABJO) Av.Universidad s/n Ex Hacienda de Cinco Se?ores Oaxaca de Juárez CP 68120 Oaxaca México Facultad de Estudios Superiores Zaragoza Unidad Multidisciplinaria de Investigación Experimental ZaragozaUniversidad Nacional Autónoma de México (UNAM) Carrera de Biología Facultad de Estudios Superiores Iztacala Universidad Nacional Autónoma de México MéxicoAvenida de los Barrios Número 1 Colonia Los Reyes Iztacala Tlalnepantla CP 54090 Estado de México México Laboratorio de Biogeografía Acuática Departamento de Biología Comparada Facultad de Ciencias Universidad Nacional Autónoma de México (UNAM)

We analyzed the distributional patterns of95 selected species of leptosporangiate ferns inhabiting the Mexican Mountain Component, using grid-cells of one geographical degree as unit areas,applying endemism indices and richness and beta diversity *** data were obtained from several herbaria and specialized *** grid-cells appear to be important for fern species richness, as they contain 35 to 49 *** gridcells are located in the Sierra Madre Oriental(SMO),Trans-Mexican Volcanic Belt(TMVB) and the Sierra Madre del Sur(SMS).Mean richness by latitudinal belts of one degree showed that the belts with highest values are related to the TMVB and SMS.A total of 13grid-cells were recognized as important from theperspective of endemism; most of them are located also in the SMO, TMVB and *** richest gridcells coincided with one of the main centres of endemism for ferns obtained in this study, located in the convergence of the southern part of the SMO, the eastern portion of the TMVB and the northern part of the SMS, reflecting the high humidity existing on the mountain slopes facing the Gulf of *** important grid-cells recognized from richness and endemism analyses coincide with Mexican Natural Protected *** beta diversity analysis showed a low degree of similarity among grid-cells, implying a high species replacement, as the result of environmental heterogeneity occurring in the Mexican mountain *** the other hand, the spatial analysis suggested a pattern of phytogeographical regionalization comprising twomain areas: the Mexican Transition Zone and the Mexican Central *** play an important role in the Mexican biodiversity and contributing to the beta diversity of Mexico.

关键词： Biogeography Distributional patterns Leptosporangiate ferns Mexico

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Functional mechanism study of the allelochemical myrigalone A identifies a group of ultrapotent inhibitors of ethylene biosynthesis in plants

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Plant Communications 2024年第6期5卷 246-262页

作者： George Heslop-Harrison Kazumi Nakabayashi Ana espinosa-Ruiz Francesca Robertson Robert Baines Christopher R.L.Thompson Katrin Hermann david Alabadí Gerhard Leubner-Metzger Robin S.B.Williams Centre for Biomedical Sciences Department of Biological SciencesRoyal Holloway University of LondonEgham TW200EXUK Centre for Plant Molecular Sciences Department of Biological SciencesRoyal Holloway University of LondonEgham TW200EXUK Instituto de Biología Molecular y Celular de Plantas(CSIC-UPV) 46022 ValenciaSpain Centre for Life’s Origins and Evolution Department of GeneticsEvolution and EnvironmentUniversity College LondonLondonUK Syngenta Crop Protection AGSteinSwitzerland

Allelochemicals represent a class of natural products released by plants as root,leaf,and fruit exudates that interfere with the growth and survival of neighboring *** how allelochemicals function to regulate plant responses may provide valuable new approaches to better control plant *** such allelochemical,Myrigalone A(MyA)produced by Myrica gale,inhibits seed germination and seedling growth through an unknown ***,we investigate MyA using the tractable modelDictyostelium discoideum and reveal that its activity depends on the conserved homolog of the plant ethylenesynthesis protein 1-aminocyclopropane-1-carboxylic acid oxidase(ACO).Furthermore,in silico modeling predicts the direct binding of MyA to ACO within the catalytic *** ***,ablation of ACO mimics the MyA-dependent developmental delay,which is partially restored by exogenous ethylene,and MyA reduces ethylene *** Arabidopsis thaliana,MyA treatment delays seed germination,and this effect is rescued by exogenous *** also mimics the effect of established ACO inhibitors on root and hypocotyl extension,blocks ethylenedependent root hair production,and reduces ethylene ***,in silico binding analyses identify a rangeof highlypotentethylene inhibitorsthatblock ethylene-dependent responseand reduce ethyleneproduction in ***,we demonstrate a molecular mechanism by which the allelochemical MyA reduces ethylene biosynthesis and identify a range of ultrapotent inhibitors of ethylene-regulated responses.

关键词： 1-aminocyclopropane-1-carboxylic acid ACC ACC oxidase ACO allelochemicals ethylene synthesis inhibitors structure-activity relationship

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Self-reported physical functioning,cardiometabolic health conditions, and healthcare utilization patterns in Million Veteran Program enrollees with Traumatic Brain Injury Screening and Evaluation Program data

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Military Medical Research 2023年第5期10卷 587-598页

作者： Alexandra L.Clark Makenna B.McGill Erin D.Ozturk david M.Schnyer Catherine Chanfreau‑Cofnier victoria C.Merritt Research Service VA San Diego Healthcare System(VASDHS)San DiegoCA92161USA Department of Psychology The University of Texas at AustinAustinTX 78712USA San Diego State University/University of CaliforniaSan Diego Joint Doctoral Program San DiegoCA 92120USA VA Informaticsand Computing Infrastructure(VINCI) VA Salt Lake City Health Care SystemSalt Lake CityUT 84148USA Department of Psychiatry School of MedicineUniversity of California San DiegoLa JollaCA 29093USA Center of Excel‑lence for Stress and Mental Health VASDHSSan Diego 92161USA

Background Examining the health outcomes of veterans who have completed the United States Veterans Health Administration’s(VHA’s)Traumatic Brain Injury(TBI)Screening and Evaluation Program may aid in the refinement and improvement of clinical care initiatives within the *** study compared self-reported physical functioning,cardiometabolic health conditions,and health care utilization patterns in Million Veteran Program enrollees with TBI Screening and Evaluation Program data(collected between 2007 and 2019),with the goal of enhancing understanding of potentially modifiable health conditions in this *** In this observational cohort study,veterans(n=16,452)were grouped based on the diagnostic outcome of the TBI Screening and Evaluation Program:1)negative TBI screen(Screen^(-));2)positive TBI screen but no confirmed TBI diagnosis[Screen^(+)/Comprehensive TBI Evaluation(CTBIE)^(-)];or 3)positive TBI screen and confirmed TBI diagnosis(Screen^(+)/CTBIE^(+)).Chi-square tests and analysis of covariance were used to explore group differences in physical functioning,cardiometabolic health conditions,and health care utilization patterns,and logistic regressions were used to examine predictors of Screen^(+/-)and CTBIE^(+/-)group *** The results showed that veterans in the Screen^(+)/CTBIE^(-)and Screen^(+)/CTBIE^(+)groups generally reported poorer levels of physical functioning(P’s0.5)compared with the Screen-group;however,health outcomes were generally comparable between the Screen^(+)/CTBIE^(-)and Screen^(+)/CTBIE^(+)***-up analyses confirmed that while physical functioning,hypertension,stroke,healthcare utilization,and prescription medication use reliably distinguished between the Screen-and Screen^(+)groups(P’s<0.02,OR’s 0.78 to 3.38),only physical functioning distinguished bet

关键词： Traumatic brain injury(TBI)screen Comprehensive TBI Evaluation(CTBIE) Health outcomes Cardiometabolichealth Veterans Million Veteran Program(MVP)

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Psychiatric outcomes in outpatients affected by long COVID:A link between mental health and persistence of olfactory complaint

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World Journal of Psychiatry 2024年第4期14卷 507-512页

作者： victoria Metelkina-Fernandez Louise-Emilie Dumas Clair Vandersteen david Chirio Auriane Gros Arnaud Fernandez Florence Askenazy Valeria Manera Department of Psychiatry Nice University HospitalNice 06000France Department of Child and Adolescent Psychiatry UniversitéCôte d’AzurNice 06200France ENT Head and Neck InstituteNice 06100France Department of Infectiology Nice University HospitalNice 06200France Department of Orthophony UniversitéCôte d’AzurNice 06100France Cobtek UniversitéCôte d’AzurNice 06100France

BACKGROUND Anosmia was one of the main symptoms of coronavirus disease 2019(COVID-19).A psychiatric history(i.e.,depression)may be an independent contributor to the risk of COVID-19 diagnosis,and COVID-19 survivors appear to have an increased risk of neuropsychiatric sequelae(bidirectional association).AIM To compare the rate of psychiatric disorder among post-COVID patients without anosmia vs patients with persistent olfactory *** We conducted a prospective case control study from March 2020 to May *** recruited at the ENT department of Nice University Hospital had a subjective olfactory complaint(visual analogue scale)for over 6 wk and a molecular or CT-proven severe acute respiratory syndrome coronavirus 2 diagnosis confirmed by ***-COVID patients without persistent olfactory disorders were recruited at the university hospital infectiology *** medical histories were collected by a psychiatrist during the *** Thirty-four patients with post-COVID-19 olfactory complaints were included in the first group of the *** percent of the patients were female(n=17).The group’s mean age was 40.5±12.9 *** control group included 32 participants,of which 34.4%were female(n=11),and had a mean age of 61.2±12.2 *** rate of psychiatric disorder among post-COVID patients with olfactory complaints was significatively higher(41.7%)than among patients without(18.8%)(χ2=5.9,P=0.015).CONCLUSION The presence of a psychiatric history may constitute a potential risk factor for the development of long COVID due to persistent *** therefore seems important to establish reinforced health monitoring after a COVID 19 infection in at-risk *** prospective,translational,and collaborative studies are needed to extrapolate these results to the general population.

关键词： COVID-19 Anosmia Psychiatry Stress Neuroplasticity Psychiatric history

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Inter-and intra-rater reliability of vertebral fracture classifications in the Swedish fracture register

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World Journal of Orthopedics 2019年第1期10卷 14-22页

作者： david Morgonsk?ld victoria Warkander Panayiotis Savvides Axel Wihlborg Mathilde Bouzereau Hans M?ller Paul Gerdhem Department of Clinical Science Intervention and Technology Karolinska Institutet Department of Orthopaedics Danderyd Hospital Department of Orthopaedics Karolinska University Hospital Department of Emergency Medicine Karolinska University Hospital

AIM To investigate the inter-and intra-rater reliability of the vertebral fracture classifications used in the Swedish fracture *** Radiological images of consecutive patients with cervical spine fractures(n = 50)were classified by 5 raters with different experience levels at two occasions. An identical process was performed with thoracolumbar fractures(n = 50). Cohen's kappa was used to calculate the inter-and intra-rater *** The mean kappa coefficient for inter-rater reliability ranged between 0.54 and0.79 for the cervical fracture classifications, between 0.51 and 0.72 for the thoracolumbar classifications(overall and for different sub classifications), and between 0.65 and 0.77 for the presence or absence of signs of ankylosing disorder in the fracture area. The mean kappa coefficient for intra-rater reliability ranged between 0.58 and 0.80 for the cervical fracture classifications, between 0.46 and0.68 for the thoracolumbar fracture classifications(overall and for different sub classifications) and between 0.79 and 0.81 for the presence or absence of signs of ankylosing disorder in the fracture *** The classifications used in the Swedish fracture register for vertebral fractures have an acceptable inter-and intra-rater reliability with a moderate strength of agreement.

关键词： Vertebral Spine Fracture Classification Swedish fracture register Interrater Intra-rater Reliability

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In vivo antiplasmodial activity of extract and fractions of Trema orientalis in ***-induced malaria in mice

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Journal of Coastal Life Medicine 2016年第10期4卷 784-790页

作者： Oludele Olanlokun Moses david Tolulope Ilori victoria Abe Laboratoriesfor Biomembrane Research and Biotechnology Department of BiochemistryFaculty of Basic Medical SciencesCollege of MedicineUniversity of IbadanIbadanNigeria Department of Microbiology Faculty of ScienceEkiti State UniversityAdo-EkitiNigeria

Objective:To assess the in vivo antimalarial potential of various solvent extracts and fractions of Trema ***:In this study,the animal model of antimalarial activity was employed using Plasmodium berghei-induced *** crude methanol extract was fractionated using vacuum liquid chromatography in the order of increasing polarity using dichloromethane,ethylacetate and *** of parasitemia and clearance were used as indices for antiplasmodial *** full blood count was also assayed while the gas chromatography-mass spectrometer analysis of the most potent fraction was carried out to detect the active compounds presenting in ***:Dichloromethane fraction had the least percentage of parasitemia[(0.19±0.07)%]and the highest percentage of clearance[(91.74±8.38)%]at the highest dose used(200 mg/kg body weight)after day 7 relative to the artemisinin control which cleared the parasite after day *** ethylacetate fraction showed the least percentage of clearance[(70.52±5.64)%]at the highest dose used(200 mg/kg body weight)after day ***:The results obtained showed that purification enhanced the antiplasmodial activity of Trema orientalis in Plasmodium berghei-induced malaria in *** antiplasmodial activity of the dichloromethane is a strong indication that the fraction,if purified further,may contain drug candidates for the treatment of malaria in the nearest future.

关键词： Trema orientalis Antimalarial potential P.berghei Malaria

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