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1.
Int. microbiol ; 22(3): 363-368, sept. 2019. graf, tab
Artigo em Inglês | IBECS | ID: ibc-184843

RESUMO

The presence of enteropathogens such as Salmonella affects the quality and safety of vegetables that are consumed in a minimally processed state. Worldwide, tomatoes are one of the main vegetables whose raw consumption has caused health alerts. As such, the aim of this study was to determine the motility and survival of Salmonella enterica subspecies enterica serovar Enteritidis on greenhouse-grown tomato plants. A completely randomized experimental design was used, and bacteria were inoculated into the substrate at the time of transplanting as well as by puncturing the plant stem, petiole, and peduncle during the vegetative, flowering, and fruiting stages. Survival was monitored throughout the production cycle; motility was evaluated separately in plant organs separated from the point of inoculation. Salmonella enteritidis survived the 120 days of the experiment both at the point of inoculation and in other organs of the tomato plant. For all treatments, there was a significant difference (P < 0.05) between bacterial counts in the root (12.45 ± 2.52 to 160 ± 4.01 CFU/g), stem (16.10 ± 2.31 to 90.55 ± 3.62 CFU/g), flower (7.0 ± 2.15 to 51.10 ± 3.80 CFU/g), and fruit (8.75 ± 2.38 to 28.2 ± 3.29 CFU/g). The results of the study indicate that Salmonella enteritidis in contact with tomato plants is a latent danger because its ability to enter, survive, and move within tomato plants until reaching the fruit, limits the effectiveness of commonly used disinfection methods, it would potentiate the risk to human health


No disponible


Assuntos
Locomoção , Lycopersicon esculentum/microbiologia , Viabilidade Microbiana , Salmonella enteritidis/fisiologia , Flores/microbiologia , Frutas/microbiologia , Raízes de Plantas/microbiologia , Fatores de Tempo , Caules de Planta/microbiologia , Carga Bacteriana
3.
An. R. Acad. Farm ; 81(5): 111-144, 2015. ilus, tab
Artigo em Espanhol | IBECS | ID: ibc-146988

RESUMO

Se estudia la vegetación del entorno del balneario de Olmedo, en función de factores edáficos, bioclimáticos, biogeográficos y florísticos. Ello nos permite identificar y delimitar las comunidades vegetales climácicas y sus etapas seriales más representativas. La ordenación del trabajo se estructura en torno a las series de vegetación reconocidas en el territorio comenzando con las cabezas de serie climatófilas y edafohigrófilas. Con el fin de facilitar la comprensión de la descripción de las distintas comunidades vegetales estudiadas en el texto y de las plantas medicinales más representativas, incluímos una serie de fotografías en color tanto de los distintos biotopos, como de algunas de las plantas medicinales espontáneas encontradas en el territorio. En esta contribución intentamos poner de manifiesto el alto valor ecológico y paisajístico que atesora el territorio estudiado. Destacamos la ayuda que para nosotros ha representado la memoria doctoral realizada por el farmacéutico D. Daniel Gutiérrez Martín sobre la flora del partido judicial de Olmedo en 1908. Además, reseñamos la colaboración realizada por el Dr. Gutiérrez Martín en la recogida en el término municipal de de Valladolid del interesante taxon Rhaponticoides alpina (= Rhaponticoides linaresii (Lázaro Ibiza) M.V. Agab. & Greuter; = Centaurea linaresii Lázaro Ibiza = Centaurea alpina L.), descrita por D. Blas Lázaro Ibiza en el género Centaurea. Finalmente se incluyen algunas rutas botánicas con el fin de visitar ciertos ecosistemas vegetales de alto valor ecológico de la comarca de Tierra de Pinares


The vegetation is studied in the area around the Olmedo spa, in terms of its soil, bioclimatic, biogeographical and floristic factors. This allows us to identify and delimit the climactic plant communities and their most representative serial stages. The ordination of the work is structured around the recognised plant series in the territory, starting with the climatophilous and edaphohygrophilous heads of series. A selection of diverse graphic material is provided to document the statements in the text. The work highlights the important ecological and scenic value of the territory in the study. Particular emphasis is given to the contribution of the 1908 doctoral thesis of the pharmacist Daniel Gutiérrez Martín on the flora of the district of Olmedo, of which one noteworthy feature is his herborisation of the interesting taxon Rhaponticoides alpina (= Rhaponticoides linaresii (Lázaro Ibiza) M.V. Agab. & Greuter; = Centaurea linaresii Lázaro Ibiza; = Centaurea alpina L.) described by Blas Lázaro Ibiza in the genus Centaurea. Finally, the work also includes a number of commentaries on medicinal plants in the study area and some botanical routes for the purpose of visiting certain plant ecosystems of high ecological value in the Tierra de Pinares region. The syntaxonomical checklist of the vegetation in the territory is also provided


Assuntos
Fauna/métodos , Clima , Botânica/métodos , Botânica/tendências , Flores/fisiologia , Etnobotânica/métodos , Plantas/classificação , Plantas , Lavandula , Cistus , Botânica/classificação , Flores/classificação , Geologia/métodos , Geologia/organização & administração , Pinus , Plantas Medicinais , Botânica/normas , Ulmus campestris/farmacologia , Lepidium , Biogeografia
4.
Arch. prev. riesgos labor. (Ed. impr.) ; 17(4): 190-195, oct.-dic. 2014. ilus, tab, graf
Artigo em Espanhol | IBECS | ID: ibc-129467

RESUMO

Objetivo: Analizar la relación entre la apertura de la herramienta manual de corte de flores y la fuerza ejercida por cada dedo de la mano operante durante el gesto de aprehensión. Métodos: Se desarrolló un experimento con 11 mujeres que realizaron el corte del tallo de una flor. Las operarias no sufrían del síndrome del túnel carpiano. Se calculó el diámetro de apertura de la herramienta cuando la fuerza de aprehensión en cada dedo era máxima al realizar el corte. Resultados: El principal hallazgo del estudio revela que los dedos ejercen el pico máximo de su fuerza de aprehensión cuando el valor del diámetro de apertura de la herramienta es igual para todos los dedos. Sin embargo, debido a las características formales de la herramienta comúnmente usada en el sector floricultor colombiano (palanca de primer orden), cada dedo realiza el pico máximo de la fuerza de aprehensión en diferentes instantes en el tiempo, desaprovechando la capacidad total de la fuerza de aprehensión. Conclusiones: Este hallazgo podría ser utilizado para mejorar la ventaja mecánica de las herramientas manuales de corte y reducir los factores de riesgo del síndrome del túnel carpiano debidos al sobresfuerzo


Objective: To analyze the association between grip span of a manual flower cutting tool and maximum peak force exerted by each finger in the operating hand during apprehension. Methods: An experiment was conducted in which 11 women performed the stem cut of a flower. These women did not suffer from carpal tunnel syndrome. Grip span was calculated when they exerted the maximum peak force with each finger. Results: The main finding of the study reveals that fingers exert the maximum peak force when the grip span values are the same for everyone. However, due to the shape of the tool commonly used in the Colombian flower industry (first order level), each finger reaches its maximum peak force at different times, bypassing the full capacity of each finger’s grip force. Conclusion: These findings could be used to improve the mechanical advantage of manual cutting tools to reduce risk factors for carpal tunnel syndrome due to overexertion


Assuntos
Humanos , Feminino , Adulto , Síndrome do Túnel Carpal/epidemiologia , Síndrome do Túnel Carpal/prevenção & controle , Esforço Físico , Flores , Doenças Profissionais/epidemiologia , Doenças Profissionais/prevenção & controle , Síndrome do Túnel Carpal/complicações , Síndrome do Túnel Carpal/fisiopatologia , Tato/fisiologia , Saúde do Trabalhador/legislação & jurisprudência , Saúde do Trabalhador/normas
5.
J. physiol. biochem ; 67(3): 415-425, sept. 2011.
Artigo em Inglês | IBECS | ID: ibc-122606

RESUMO

No disponible


Diabetes is a chronic health problem and major cause of death in most of the countries. Diet management plays an important role in controlling diabetes and its complications along with insulin and drugs. We have examined the effect of banana (Musa sp. var. elakki bale) flower and pseudostem on hyperglycemia and advanced glycation end-products (AGEs) in streptozotocin-induced diabetic rats. Our results indicated that banana flower and pseudostem have low glycemic index and have a high content of dietary fiber and antioxidants. Diabetic symptoms like hyperglycemia, polyuria, polyphagia, polydipsia, urine sugar, and body weight were ameliorated in banana flower- and pseudostem-treated rats. Increased glomerular filtration rate in the diabetic group (5.1 ± 0.22 ml/min) was decreased in banana flower-fed (2.5 ± 0.37 ml/min) and pseudostem-fed (3.0 ± 0.45 ml/min) groups and were significant at P < 0.001 and P < 0.01, respectively. Fructosamine and AGEs formed during diabetes were inhibited in treated groups when compared with the diabetic group. The diabetic group showed 11.5 ± 0.64 ìg of AGEs/mg protein in kidney, whereas, in banana flower- and pseudostem-fed groups, it was reduced to 9.21 ± 0.32 and 9.29 ± 0.24 ìg/mg protein, respectively, and were significant at P < 0.01. These findings suggest that banana flower and pseudostem have anti-diabetic and anti-AGEs properties and are beneficial as food supplements for diabetics (AU)


Assuntos
Animais , Ratos , Musa , Flores , Extratos Vegetais/farmacocinética , Hiperglicemia/tratamento farmacológico , Produtos Finais de Glicação Avançada , Modelos Animais de Doenças , Substâncias Protetoras/farmacocinética , Diabetes Mellitus/tratamento farmacológico , Estreptozocina/farmacocinética
6.
Int. microbiol ; 13(4): 195-206, dic. 2010. ilus, tab
Artigo em Inglês | IBECS | ID: ibc-96708

RESUMO

This work describes a medium-based screening method for selecting microbial biocontrol agents against Erwinia amylovora based on the degradation of a specific growth factor. Erwinia amylovora, the causal agent of the devastating fire blight disease, requires nicotinic acid or nicotinamide as an essential growth factor. Potential biocontrol agents are either selected for antimicrobial production in plate or directly on immature pears or apple blossoms. In this work, we have attempted to streamline the selection of a new potential biocontrol agent with a lower risk of non-target effects by isolation based on the ability to degrade nicotinic acid in vitro, using therefore few plant materials. A total of 735 bacteria and 1237 yeast were isolated from apple blossoms and pre-screened for nicotinic acid-degradation. Pseudomonas rhizosphaerae strain JAN was able to degrade both nicotinic acid and nicotinamide. Mutants deficient in this ability were constructed. JAN, but not the mutants, controlled E. amylovora on pear slices. On detached apple blossoms, JAN colonized apple hypanthia and strongly suppressed E. amylovora growth. Under greenhouse conditions, JAN was more effective in controlling blossom blight than P. fluorescens A506, a commercial biocontrol agent of fire blight unable to degrade nicotinic acid and nicotinamide (AU)


No disponible


Assuntos
Ácidos Nicotínicos/metabolismo , Pseudomonas/genética , Pseudomonas/isolamento & purificação , Pseudomonas/metabolismo , Doenças das Plantas/microbiologia , Doenças das Plantas/prevenção & controle , Erwinia amylovora/crescimento & desenvolvimento , Erwinia amylovora/metabolismo , Elementos de DNA Transponíveis , Flores/microbiologia , Frutas/microbiologia , Malus/microbiologia , Mutagênese Insercional , Filogenia , Brotos de Planta/microbiologia , Pyrus/microbiologia
7.
An. R. Acad. Farm ; 73(4): 1237-1264, oct. 2007. ilus
Artigo em Espanhol | IBECS | ID: ibc-64425

RESUMO

La disponibilidad de genotipos de plantas androestériles es crucial para laobtención de semillas híbridas y abre la posibilidad del manejo de las plantas deforma más respetuosa con el medio ambiente. Nosotros hemos desarrollado herramientasbiotecnológicas para la producción de plantas androestériles de interésagronómico (tomate, colza, tabaco) mediante el uso de la región promotora del genPsEND1 de guisante para dirigir la expresión de agentes citotóxicos específicamentea los tejidos estructurales de las anteras para producir su ablación genética. Enlas plantas androestériles obtenidas mediante ingeniería genética, hemos observadoque se produce un mayor número de ramas y consecuentemente una mayorproducción de flores. Además, la vida útil de estas plantas se prolonga de formanotable. Estas características son de interés para el sector de la floricultura, ya queactualmente se están produciendo híbridos mediante mejora convencional conflores muy vistosas y colores novedosos, pero con escasa producción de flores por planta. Por otra parte, la introducción en la planta modificada genéticamente deun gen que le confiera androesterilidad, es otra característica deseable en el campode las plantas ornamentales ya que evitaría la transferencia horizontal de transgenesal medio ambiente y a especies sexualmente compatibles


The availability of male-sterile plant varieties is relevant for obtaining of hybridplant lines which are more vigorous than the corresponding parental pure linesbecause the phenomenon known as heterosis. Moreover, the use of male-sterileplants prevents undesirable horizontal gene transfer. We have developed biotechnologicaltools to obtain androsteryle lines of plants with agronomic interest suchas tomato, tobacco, rape seed and wheat. This is accomplished by the use of thepromoter region of the PsEND1 gene to drive the expression of cytotoxic agents,such as barnase, to the structural tissues of the anthers. The male-sterile transgenicplants obtained live longer and show a higher number of branches and flowersthan the corresponding wild type plants. This will allow plant breeders to incorporatethose valuable characteristics to increase the number of flowers of plantsalready displaying new colours, shapes and fragrances. These new ornamentalplants are environmental friendly since horizontal gene transfer can not take place


Assuntos
Engenharia Genética/efeitos adversos , Engenharia Genética/métodos , Biotecnologia/métodos , Infertilidade/induzido quimicamente , Plantas/química , Plantas/genética , Vigor Híbrido , Vigor Híbrido/genética , Reguladores de Crescimento de Planta/química , Reguladores de Crescimento de Planta/síntese química , Genótipo , Flores/química , Flores
9.
Rev. Rol enferm ; 28(5): 367-372, mayo 2005. ilus
Artigo em Espanhol | IBECS | ID: ibc-042710

RESUMO

Las esencias florales fueron descubiertas en la década de los treinta, por el médico, bacteriólogo y homeópata inglés Dr. Edward Bach, que describió 38 remedios elaborados con flores y brotes, cada uno de ellos para un patrón emocional o una personalidad típica, además de un remedio compuesto para situaciones de emergencia


Floral essences were discovered in the decade of the thirties by the English doctor, bacteriologist and homeopath Dr. Edward Bach. He described 38 remedies elaborated with flowers and shoots; each one correspondeds to an emotional pattern or a typical personality. Furthermore, he describes a remedy developed for emergency situations


Assuntos
Humanos , Terapias Complementares , Flores , Extratos Vegetais
10.
Rev. Rol enferm ; 26(12): 810-814, dic. 2003. ilus
Artigo em Espanhol | IBECS | ID: ibc-34214

RESUMO

Las tisanas, es decir, todas las extracciones "caseras" de plantas medicinales -ya sean infusiones, cocimientos o maceraciones-, siguen siendo de gran utilidad e importancia, ya sea en tratamiento único de síndromes menores o como coadyuvante de trastornos agudos o crónicos. En los preparados tipo tisana, los principios activos se encuentran en menor concentración, lo que determina una acción farmacológica más suave, pero también una menor incidencia en la aparición de efectos indeseables. En sucesivos artículos repasaremos aquellas plantas más frecuentemente utilizadas en patología menor que podemos manejar fácilmente, en forma de infusión, maceración o cocimiento, para beneficio de nuestros pacientes y para el nuestro propio. Las clasificaremos según su indicación y acción farmacológica (AU)


Assuntos
Humanos , Medicina Herbária , Plantas Medicinais/uso terapêutico , Flores/uso terapêutico , Plantas Medicinais/classificação
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