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1.
Plant Dis ; 106(2): 676-684, 2022 Feb.
Article in English | MEDLINE | ID: mdl-34569833

ABSTRACT

Soft rot on potato tuber is a destructive disease caused by pathogenic bacterial species of the genera Pectobacterium and Dickeya. Accurate identification of the causal agent is necessary to ensure adequate disease management because different species may have distinct levels of aggressiveness and host range. One of the most important potato pathogens is Pectobacterium carotovorum, a highly heterogeneous species capable of infecting multiple hosts. The complexity of this species, until recently divided into several subspecies, has made it difficult to develop precise diagnostic tests. This study proposes a PCR assay based on the new pair of primers Pcar1F/R to facilitate the identification of potato isolates of P. carotovorum according to the most recent taxonomic description of this species. The new primers were designed on a variable segment of the 16S rRNA gene and the intergenic spacer region of available DNA sequences from classical and recently established species in the genus Pectobacterium. The results of the PCR analysis of genomic DNA from 32 Pectobacterium and Dickeya strains confirmed that the Pcar1F/R primers have sufficient nucleotide differences to discriminate between P. carotovorum and other Pectobacterium species associated with damage to potato crops, with the exception of Pectobacterium versatile, which improves the specificity of the currently available primers. The proposed assay was originally developed as a conventional PCR but was later adapted to the real-time PCR format for application in combination with the existing real-time PCR test for the potato-specific pathogen Pectobacterium parmentieri. This should be useful for the routine diagnosis of potato soft rot.


Subject(s)
Pectobacterium carotovorum , Solanum tuberosum , Pectobacterium carotovorum/genetics , Plant Diseases/microbiology , Polymerase Chain Reaction , RNA, Ribosomal, 16S , Solanum tuberosum/microbiology
2.
Microorganisms ; 8(9)2020 Sep 21.
Article in English | MEDLINE | ID: mdl-32967215

ABSTRACT

Liberibacter is a bacterial group causing different diseases and disorders in plants. Among liberibacters, Candidatus Liberibacter solanaceraum (CLso) produces disorders in several species mainly within Apiaceae and Solanaceae families. CLso isolates are usually grouped in defined haplotypes according to single nucleotide polymorphisms in genes associated with ribosomal elements. In order to characterize more precisely isolates of CLso identified in potato in Spain, a Multilocus Sequence Analysis (MLSA) was applied. This methodology was validated by a complete analysis of ten housekeeping genes that showed an absence of positive selection and a nearly neutral mechanism for their evolution. Most of the analysis performed with single housekeeping genes, as well as MLSA, grouped together isolates of CLso detected in potato crops in Spain within the haplotype E, undistinguishable from those infecting carrots, parsnips or celery. Moreover, the information from these housekeeping genes was used to estimate the evolutionary divergence among the different CLso by using the concatenated sequences of the genes assayed. Data obtained on the divergence among CLso haplotypes support the hypothesis of evolutionary events connected with different hosts, in different geographic areas, and possibly associated with different vectors. Our results demonstrate the absence in Spain of CLso isolates molecularly classified as haplotypes A and B, traditionally considered causal agents of zebra chip in potato, as well as the uncertain possibility of the present haplotype to produce major disease outbreaks in potato that may depend on many factors that should be further evaluated in future works.

3.
Salud ment ; 40(6): 257-264, Nov.-Dec. 2017. tab
Article in English | LILACS | ID: biblio-903742

ABSTRACT

Abstract: Introduction: Descriptive data about co-occurrence of alcohol and cocaine consumption is scarce, despite its important prevalence. Dual disordes shows high prevalence in clinical samples, and patients report worse evolution and need more health services. Objective: To compare psychopathology in patients in treatment with lifetime alcohol and cocaine (Alc + Coc) substance use disorder (SUD) with subjects with alcohol but not cocaine (Alc) lifetime SUD and cocaine but not alcohol (Coc) SUD. Method: The sample consisted of 837 outpatients from Madrid, Spain, under treatment in substance misuse or mental health units. Two analyses were made: we compared subjects in the Alc + Coc (n = 366) to the Alc group (n = 162), and then to the Coc group (n = 122). Socio-demographic variables were addressed by interview. The Mini International Neuropsychiatric Interview (MINI) was used to evaluate Axis I disorders and the Personality Disorder Questionnaire (PDQ) to evaluate Personality Disorders (PD). Results: Compared to Alc group, patients in the Alc + Coc group were younger, had different socio-demographic characteristics, had more proportion of cannabis and opioid SUD, had less proportion of major depressive disorder, obsessive and depressive PD, more proportion of antisocial PD and lower suicide risk. Compared to the Coc group, they had more cannabis SUD and lower opioid SUD, showed higher prevalence of bipolar disorder, general anxiety disorder, paranoid, histrionic and dependent PD. Discussion and conclusion: We present a cross-sectional study describing comorbidity of dual disordes on treatment-seeking concurrent alcohol and cocaine problematic users. This concurrence showed different dual disordes prevalence profile than single users in some specific mental disorders.


Resumen: Introducción: La patología dual presenta una alta prevalencia en muestras clínicas. Estos pacientes sufren mayor comorbilidad y requieren más servicios. Existen escasos datos de comorbilidad por alcohol y cocaína. Objetivo: Valorar datos sociodemográficos, prevalencias de trastorno por uso de sustancias (TUS), trastorno mental y trastornos de personalidad en pacientes con trastorno por uso de alcohol y cocaína frente a pacientes con uno de los dos TUS. Método: La muestra incluyó 837 pacientes procedentes de Centros de Salud Mental y Centros de Atención a Drogodependientes. Se realizaron dos análisis: se comparó el grupo de alcohol y cocaína (Alc + Coc, n = 366) con el grupo de alcohol (Alc, n = 162), y posteriormente con el grupo de cocaína (Coc, n = 122). Se recogieron variables sociodemográficas y sobre TUS mediante entrevista, diagnósticos de trastorno mental del eje I mediante la entrevista estructurada Mini International Neuropsychiatric Inerview (MINI) y los trastornos de personalidad mediante el Personality Disorder Questionnaire (PDQ). Resultados: Los pacientes del grupo Alc + Coc frente al grupo Alc presentaban diferencias sociodemográficas significativas, mayor prevalencia de TUS asociados, riesgo más alto de suicidio y mayor proporción de trastorno antisocial de personalidad. Además, tenían menor prevalencia de trastornos depresivos. Frente al grupo Coc presentaron mayor prevalencia de trastorno por consumo de cannabis, pero menor de opioides y mayor prevalencia de trastorno bipolar, trastorno de ansiedad generalizada y trastornos de personalidad. Discusión y conclusión: Los pacientes comórbidos para alcohol y cocaína presentaron un distinto perfil de prevalencia de algunos trastornos mentales específicos.

4.
Antonie Van Leeuwenhoek ; 107(5): 1315-21, 2015 May.
Article in English | MEDLINE | ID: mdl-25772303

ABSTRACT

A bacterial strain designated A4STR04(T) was isolated from the inner root tissue of potatoes in Spain. Phylogenetic analysis based on the 16S rRNA gene sequence placed the isolate into the genus Fontibacillus, being most closely related to Fontibacillus panacisegetis KCTC 13564(T) with 99% identity. The isolate was observed to form Gram-positive, motile and sporulating rods. The catalase test was found to be negative and oxidase positive. Nitrate was found to be reduced to nitrite. ß-Galactosidase and caseinase were observed to be produced but the production of gelatinase, urease, arginine dehydrolase, ornithine and lysine decarboxylase was negative. Aesculin hydrolysis was found to be positive and acetoin production was negative. Growth was found to be supported by many carbohydrates and organic acids as carbon source. MK-7 was the only menaquinone detected and the major fatty acid (61.5%) was identified as anteiso-C(15:0), as occurs in the other species of genus Fontibacillus. The strain A4STR04(T) was found to display a complex lipid profile consisting of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, a glycolipid, two phospholipids, a lipid and two aminophospholipids. Mesodiaminopimelic acid was detected in the peptidoglycan. The G+C content was determined to be 50.5 mol% (Tm). Phylogenetic, chemotaxonomic and phenotypic analyses showed that strain A4STR04(T) (=LMG 28458 (T) = CECT 8693(T)) should be classified as representing a novel species of genus Fontibacillus, for which the name Fontibacillus solani sp. nov. is proposed.


Subject(s)
Bacillales/classification , Bacillales/isolation & purification , Plant Roots/microbiology , Solanum tuberosum/microbiology , Bacillales/genetics , Bacillales/metabolism , Bacterial Typing Techniques , Base Composition , DNA, Bacterial/genetics , Fatty Acids/chemistry , Fatty Acids/metabolism , Molecular Sequence Data , Phylogeny , Plant Roots/genetics , RNA, Ribosomal, 16S/genetics
5.
Rev. psiquiatr. salud ment ; 8(1): 26-34, ene.-mar. 2015. tab, ilus
Article in Spanish | IBECS | ID: ibc-133333

ABSTRACT

Introducción. En España, cada año consuman suicidio alrededor de 3.500 personas. El principal objetivo del presente estudio fue examinar si eran evidentes agrupaciones (clusters) espacio-temporales de suicidio en la región de Antequera (Málaga, España). Métodos. Muestra y procedimiento. Entre el 1 de enero de 2004 y el 31 de diciembre de 2008, se identificaron todos los casos de suicidio consumado (fuente: Servicio de Patología Forense del Instituto de Medicina Legal, Málaga, España). Geolocalización. Usamos Google Earth para calcular las coordenadas del domicilio de todos los casos de suicidio. Análisis estadístico. Usamos el programa SaTScan® espacio-temporal y la función K de Ripley para examinar la presencia de agrupaciones (clusters) espacio-temporales de los casos de suicidio. Acto seguido, utilizamos la prueba de la X2 de Pearson para determinar la presencia de diferencias estadísticamente significativas entre los casos de suicidio identificados dentro y fuera de las agrupaciones de suicidio. Resultados. En los análisis del presente estudio efectuado en el municipio de Antequera, de un total de 120 individuos que cometieron suicidio se incluyeron 96 (80%). Se identificaron pruebas estadísticamente significativas para 7 agrupaciones espacio-temporales de suicidio dentro de los límites críticos de 0-2,5 km de distancia y durante la primera y segunda semana después del caso de suicidio (p < 0,05 en ambos casos). Entre los casos de suicidio dentro de agrupaciones (n = 17), no hubo ningún individuo en el que se hubiera establecido un diagnóstico de trastorno psicótico actual, mientras que, entre los casos de suicidio fuera de las agrupaciones espacio-temporales, en el 20%, se había establecido dicho diagnóstico (X2 = 4,13; gl = 1; p < 0,05). Conclusiones. En la región circundante de Antequera están presentes agrupaciones (clusters) espacio-temporales de los casos de suicidio. Entre pacientes con un diagnóstico de trastorno psicótico actual hubo menos probabilidades de una influencia por los factores que determinan las agrupaciones espacio-temporales de los casos de suicidio consumado (AU)


Introduction. Approximately 3,500 people commit suicide every year in Spain. The main aim of this study is to explore if a spatial and temporal clustering of suicide exists in the region of Antequera (Málaga, España). Methods. Sample and procedure: All suicides from January 1, 2004 to December 31, 2008 were identified using data from the Forensic Pathology Department of the Institute of Legal Medicine, Málaga (España). Geolocalisation. Google Earth was used to calculate the coordinates for each suicide decedent's address. Statistical analysis. A spatiotemporal permutation scan statistic and the Ripley's K function were used to explore spatiotemporal clustering. Pearson's chi-squared was used to determine whether there were differences between suicides inside and outside the spatiotemporal clusters. Results. A total of 120 individuals committed suicide within the region of Antequera, of which 96 (80%) were included in our analyses. Statistically significant evidence for 7 spatiotemporal suicide clusters emerged within critical limits for the 0-2.5 km distance and for the first and second semanas (P < .05 in both cases) after suicide. There was not a single subject diagnosed with a current psychotic disorder, among suicides within clusters, whereas outside clusters, 20% had this diagnosis (X2 = 4.13; df = 1; P < .05). Conclusions. There are spatiotemporal suicide clusters in the area surrounding Antequera. Patients diagnosed with current psychotic disorder are less likely to be influenced by the factors explaining suicide clustering (AU)


Subject(s)
Humans , Male , Female , Suicide/prevention & control , Suicide/statistics & numerical data , Space-Time Clustering , Epidemiological Monitoring/trends , Spatio-Temporal Analysis , Spain/epidemiology
6.
Rev Psiquiatr Salud Ment ; 8(1): 26-34, 2015.
Article in Spanish | MEDLINE | ID: mdl-24986472

ABSTRACT

INTRODUCTION: Approximately 3,500 people commit suicide every year in Spain. The main aim of this study is to explore if a spatial and temporal clustering of suicide exists in the region of Antequera (Málaga, España). METHODS: Sample and procedure: All suicides from January 1, 2004 to December 31, 2008 were identified using data from the Forensic Pathology Department of the Institute of Legal Medicine, Málaga (España). Geolocalisation. Google Earth was used to calculate the coordinates for each suicide decedent's address. Statistical analysis. A spatiotemporal permutation scan statistic and the Ripley's K function were used to explore spatiotemporal clustering. Pearson's chi-squared was used to determine whether there were differences between suicides inside and outside the spatiotemporal clusters. RESULTS: A total of 120 individuals committed suicide within the region of Antequera, of which 96 (80%) were included in our analyses. Statistically significant evidence for 7 spatiotemporal suicide clusters emerged within critical limits for the 0-2.5 km distance and for the first and second semanas (P<.05 in both cases) after suicide. There was not a single subject diagnosed with a current psychotic disorder, among suicides within clusters, whereas outside clusters, 20% had this diagnosis (X2=4.13; df=1; P<.05). CONCLUSIONS: There are spatiotemporal suicide clusters in the area surrounding Antequera. Patients diagnosed with current psychotic disorder are less likely to be influenced by the factors explaining suicide clustering.


Subject(s)
Suicide/statistics & numerical data , Adolescent , Adult , Aged , Chi-Square Distribution , Cluster Analysis , Female , Humans , Life Change Events , Male , Mental Disorders/epidemiology , Middle Aged , Monte Carlo Method , Personality Disorders/epidemiology , Socioeconomic Factors , Spain/epidemiology , Suicide/psychology , Urban Population , Young Adult
7.
Lima; Ministerio de Sanidad, Servicios Sociales e Igualdad. Agencia de Evaluación de Tecnologías Sanitarias de Galicia (avalia-t); 2014. 82 p.
Monography in Spanish | INS-PERU, BIGG - GRADE guidelines | ID: biblio-1046766

ABSTRACT

La guía trata de temas relacionados al tratamiento de la depresión, tocando temas como: las perspectivas y experiencias de los pacientes con depresión y sus familiares; evaluación y cribado de la depresión; los modelos de atención; tratamiento psicoterapéutico, tratamiento farmacológico; estrategias psicoterapéuticas y farmacológicas en la depresión resistente.


Subject(s)
Humans , Adult , Depression/diagnosis , Depression/psychology , Depression/drug therapy , Psychotherapy , Risk Factors , Depression/therapy , Antidepressive Agents/therapeutic use
8.
Psicothema ; 22(4): 568-73, 2010 Nov.
Article in Spanish | MEDLINE | ID: mdl-21044480

ABSTRACT

Adolescents' drug use has huge social and personal implications, so it is essential to identify risk and protective factors. In this research, the CTCYS was used with 2440 adolescents to detect risk and protective factors for drug use in the community, family, school and peers/individual; differences in risk and protective factors by age and sex; and relationships between risk and protective factors and substance use. Protective factors are high. Risk factors are high in the community, the school and the individual. Older adolescents have more risks and less protection than the youngest; and there are sex differences, because males have less protection and more risks. The risk factors more closely related to drug use are availability of drugs in the community, family attitudes favourable to drug use, family history of antisocial behaviour, early start and use of drugs by friends, perceived risk and attitudes favourable to drug use. In the protective factors, the role played by social skills for alcohol use is important.


Subject(s)
Adolescent Behavior , Psychology, Adolescent , Substance-Related Disorders/epidemiology , Adaptation, Psychological , Adolescent , Age Factors , Attitude to Health , Child , Drug Users/education , Drug Users/psychology , Educational Status , Family Relations , Female , Humans , Male , Peer Group , Risk Factors , Risk-Taking , Sex Factors , Spain , Surveys and Questionnaires
9.
Syst Appl Microbiol ; 33(5): 247-51, 2010 Aug.
Article in English | MEDLINE | ID: mdl-20627641

ABSTRACT

Some strains of the former genus Agrobacterium have high biotechnological interest and are currently misclassified. Consequently, in this study, the taxonomic status of the non-pathogenic strain Agrobacterium radiobacter K84, used in biological control, and the tumourigenic strain Agrobacterium tumefaciens AKE10, able to regenerate tobacco transgenic plants, was revised. The phylogenetic analysis of the chromosomal genes rrs, atpD and recA showed that they should be reclassified into Rhizobium rhizogenes. The analysis of virulence genes located in the Ti plasmid (pTi) outside T-DNA showed a common phylogenetic origin among strains AKE10, R. rhizogenes 163C and A. tumefaciens (currently R. radiobacter) C58. However, the genes located inside the T-DNA, mainly the 6b gene, of strain AKE10 were phylogenetically close to those of strain 163C but divergent from those of strain C58. Furthermore, the T-DNA of tumourigenic strains from R. rhizogenes conferred on them the ability to regenerate tumour tissue resembling fasciation in tobacco plants. These results showed the existence of a highly mosaic genetic organization in tumourigenic strains of the genus Rhizobium and provided evidence of the involvement of T-DNA from tumourigenic strains of R. rhizogenes in fasciation of Nicotiana leaves. The data further suggested that pathogenic strains of Rhizobium could be good models to analyse bacterial evolution.


Subject(s)
Genes, Bacterial/genetics , Rhizobium , Agrobacterium tumefaciens/classification , Agrobacterium tumefaciens/genetics , Bacterial Proteins/genetics , Cluster Analysis , DNA, Bacterial/genetics , Membrane Proteins/genetics , Phylogeny , Plant Leaves/microbiology , Rec A Recombinases/genetics , Rhizobium/classification , Rhizobium/genetics , Ribosome Subunits, Small, Bacterial/genetics , Nicotiana/microbiology , Transcription Factors/genetics , Virulence/genetics
10.
Psicothema (Oviedo) ; 22(4): 568-573, 2010. tab
Article in Spanish | IBECS | ID: ibc-82502

ABSTRACT

El consumo de drogas en adolescentes tiene considerables implicaciones sociales y personales, por lo que es esencial la identificación de factores de riesgo y protección. En esta investigación se aplicó el cuestionario CTCYS a 2.440 adolescentes para detectar los factores protectores y de riesgo en la comunidad, la familia, la escuela y el grupo de iguales/individuo; diferencias en protección y riesgo según edad y sexo, y relación entre dichos factores y consumo. Los factores de protección son elevados. Los factores de riesgo son altos en comunidad, escuela e individuo. Los mayores tienen más riesgos y menos protección que los pequeños; y se dan diferencias según el sexo, contando los chicos con menos protección y más riesgos que las chicas. Los factores de riesgo más relacionados con el consumo de sustancias son la disponibilidad de drogas, las actitudes familiares favorables al consumo, la historia familiar de conducta antisocial, el inicio temprano y el consumo de los amigos, el riesgo percibido con respecto al consumo y las actitudes favorables al consumo. En los factores de protección destaca el papel de las habilidades sociales frente al consumo de alcohol (AU)


Adolescents’ drug use has huge social and personal implications, so it is essential to identify risk and protective factors. In this research, the CTCYS was used with 2440 adolescents to detect risk and protective factors for drug use in the community, family, school and peers/individual; differences in risk and protective factors by age and sex; and relationships between risk and protective factors and substance use. Protective factors are high. Risk factors are high in the community, the school and the individual. Older adolescents have more risks and less protection than the youngest; and there are sex differences, because males have less protection and more risks. The risk factors more closely related to drug use are availability of drugs in the community, family attitudes favourable to drug use, family history of antisocial behaviour, early start and use of drugs by friends, perceived risk and attitudes favourable to drug use. In the protective factors, the role played by social skills for alcohol use is important(AU)


Subject(s)
Humans , Male , Female , Adolescent , Risk Factors , Adolescent Behavior/psychology , Substance-Related Disorders/prevention & control , Substance-Related Disorders/psychology , Alcoholism/prevention & control , Alcoholism/psychology , Codependency, Psychological , Data Analysis/methods , Consumer Advocacy/legislation & jurisprudence , Consumer Advocacy/psychology
11.
Phytopathology ; 96(8): 900-7, 2006 Aug.
Article in English | MEDLINE | ID: mdl-18943756

ABSTRACT

ABSTRACT An atypical strain of Erwinia amylovora was isolated near an outbreak of fire blight at a nursery in Spain in 1996. It was obtained from a Crataegus plant showing typical symptoms and was identified as E. amy-lovora by biochemical tests and enrichment-enzyme-linked immuno-sorbent assay, but not by polymerase chain reaction using primers based on the pEA29 sequence. Nevertheless, with primers from chromosomal regions, the isolate gave the expected amplification band. This strain carries one plasmid of approximately 70 kb, with no homology with the 29-kb plasmid common to all pathogenic strains, or with a large plasmid present in some E. amylovora strains. Growth of the strain in minimal medium without thiamine was slower compared with cultures in the same medium with thiamine, a characteristic typical of strains cured of the 29-kb plasmid. Nevertheless, aggressiveness assays on pear, apple, and Pyracantha plants and in immature pear fruit showed that this strain exhibited a virulence level similar to other strains containing pEA29. To the best of our knowledge, this is the first report of the isolation from naturally infected plant material of a pathogenic strain of E. amylovora without pEA29, but with a plasmid of approximately 70 kb not previously described.

12.
Appl Environ Microbiol ; 71(1): 140-8, 2005 Jan.
Article in English | MEDLINE | ID: mdl-15640181

ABSTRACT

The presence of Ralstonia solanacearum biovar 2 in the watercourses of European countries is increasing, but little is known about its ecology in aquatic habitats. The detection of this pathogen in 2000 in one Spanish river led us to study its population density at different locations on the river over a period of 3 years. During 2000 and 2001, the pathogen was recovered at low densities (10 to 80 CFU/ml) by direct plating on modified SMSA agar from water samples at 14 degrees C or higher, but its isolation was usually unsuccessful at temperatures below 9 degrees C. To monitor the pathogen's abundance in winter, we used two liquid selective media for enrichment (at 29 and 35 degrees C) and compared them by using spiked river water samples: modified Wilbrink broth (MWB) was more efficient than modified SMSA broth for double-antibody-sandwich indirect enzyme-linked immunosorbent assay (DASI-ELISA) detection of R. solanacearum. Enrichment in MWB at both temperatures allowed us to recover R. solanacearum cells that were nonculturable on solid media up to 25 days after their entry into the viable but nonculturable state. When we applied this technique to water samples during the cold months of 2001 and 2002, we obtained the best detection results by the most-probable-number method after enrichment at 35 degrees C with MWB. The enrichment protocol was combined with DASI-ELISA and validated by Co-PCR to detect both naturally and artificially starved and cold-stressed cells in water, which were still infective. Overall, the data from this study demonstrate the effects of temperature variation on the population and culturability of R. solanacearum cells on solid media and their survival at low temperatures.


Subject(s)
Cold Temperature , Genetic Variation , Ralstonia solanacearum/isolation & purification , Ralstonia solanacearum/physiology , Rivers/microbiology , Seasons , Culture Media , Ecosystem , Enzyme-Linked Immunosorbent Assay , Solanum lycopersicum/microbiology , Plant Diseases/microbiology , Polymerase Chain Reaction , Ralstonia solanacearum/genetics , Ralstonia solanacearum/pathogenicity
13.
Mol Plant Microbe Interact ; 18(12): 1325-32, 2005 Dec.
Article in English | MEDLINE | ID: mdl-16478052

ABSTRACT

Bacteria belonging to the family Rhizobiaceae may establish beneficial or harmful relationships with plants. The legume endosymbionts contain nod and nif genes responsible for nodule formation and nitrogen fixation, respectively, whereas the pathogenic strains carry vir genes responsible for the formation of tumors or hairy roots. The symbiotic and pathogenic strains currently belong to different species of the genus Rhizobium and, until now, no strains able to establish symbiosis with legumes and also to induce tumors or hairy roots in plants have been reported. Here, we report for the first time the occurrence of two rhizobial strains (163C and ATCC11325T) belonging to Rhizobium rhizogenes able to induce hairy roots or tumors in plants and also to nodulate Phaseolus vulgaris under natural environmental conditions. Symbiotic plasmids (pSym) containing nod and nif genes and pTi- or pRi-type plasmids containing vir genes were found in these strains. The nodD and nifH genes of the strains from this study are phylogenetically related to those of Sinorhizobium strains nodulating P. vulgaris. The virA and virB4 genes from strain 163C are phylogenetically related to those of R. tumefaciens C58, whereas the same genes from strain ATCC 11325T are related to those of hairy root-inducing strains. These findings may be of high relevance for the better understanding of plant-microbe interactions and knowledge of rhizobial phylogenetic history.


Subject(s)
Bacterial Proteins/genetics , Bacterial Proteins/metabolism , Plant Roots/microbiology , Rhizobium/genetics , Rhizobium/pathogenicity , Symbiosis/genetics , Gene Expression Profiling , Molecular Sequence Data , Phaseolus/metabolism , Phaseolus/microbiology , Phylogeny , Plasmids/genetics , RNA, Ribosomal, 16S/genetics , Rhizobium/classification , Rhizobium/physiology , Virulence/genetics
14.
Int J Syst Evol Microbiol ; 54(Pt 4): 1271-1275, 2004 Jul.
Article in English | MEDLINE | ID: mdl-15280302

ABSTRACT

Some varieties of sugar beet, Beta vulgaris, cultivated in northern Spain have large deformations that resemble the tumours produced by Agrobacterium species. In an attempt to isolate the agent responsible for these deformations, several endophytic slow-growing bacterial strains were isolated, the macroscopic morphology of which resembled that of Bradyrhizobium species. These strains were not able to produce tumours in Nicotiana tabacum plants and, based on phylogenetic analysis of their 16S rRNA, they are closely related to the genus Bradyrhizobium. Phenotypic and molecular characteristics of these strains revealed that they represent a species different from all Bradyrhizobium species previously described. Sequence analysis of the 16S-23S rDNA intergenic spacer region indicated that these novel strains form a homogeneous group, related to Bradyrhizobium japonicum, Bradyrhizobium liaoningense and Bradyrhizobium yuanmingense. DNA-DNA hybridization confirmed that these strains represent a novel species of the genus Bradyrhizobium, for which the name Bradyrhizobium betae sp. nov. is proposed. The type strain is PL7HG1T (=LMG 21987T=CECT 5829T).


Subject(s)
Beta vulgaris/microbiology , Bradyrhizobium/classification , Bradyrhizobium/isolation & purification , Plant Roots/microbiology , Plant Tumors/microbiology , Bacterial Typing Techniques , Bradyrhizobium/genetics , DNA Fingerprinting , DNA, Bacterial/chemistry , DNA, Ribosomal/chemistry , DNA, Ribosomal Spacer/chemistry , Genes, rRNA , Molecular Sequence Data , Nucleic Acid Hybridization , Phylogeny , RNA, Bacterial/genetics , RNA, Ribosomal, 16S/genetics , Random Amplified Polymorphic DNA Technique , Sequence Analysis, DNA , Sequence Homology , Soil Microbiology , Spain
15.
Pap. psicol ; 25(87): 0-0, ene.-abr. 2004. tab
Article in Spanish | IBECS | ID: ibc-140456

ABSTRACT

En las últimas décadas se ha asistido a una proliferación de las investigaciones de resultados en psicoterapia; hasta tal punto, que se cuenta en la actualidad con una nada desdeñable, aunque insuficiente, base empírica, que avala los tratamientos psicoterapéuticos. Sin embargo, hay aún muchos aspectos controvertidos, por lo que sigue siendo necesario que las diferentes escuelas que coexisten en el mercado de las psicoterapias, desarrollen pruebas en las que basar sus prácticas clínicas. El objeto de esta investigación es la evaluación de los resultados que se generan de la aplicación de un modelo de Terapia Familiar Breve en la Consulta de Psicología de una Unidad de Salud Mental enclavada en un Hospital Comarcal. Se aplica un modelo de Terapia Familiar Sistémica -Terapia Familiar Breve-, guiado por la teoría y las prácticas de MRI de Palo Alto y del BFTC de Milwaokee. Se analiza el resultado de todos los casos atendidos con psicoterapia en la Consulta de Psicología del Hospital "Virxe da Xunqueira" durante los años 1999, 2000 y 2001 -N = 785-. Los resultados -Abandonan 18% y continúan tratamiento 82%; se "enganchan" 16% y terminan 84%; de los cuales son Éxito 77% y Fracaso 23%- confirman los resultados de investigaciones previas. Tras un seguimiento a 20 meses, se registra un 19% de recaídas; mientras que han resuelto el problema 66% de los casos de abandono y el 46 % de los fracasos. Además 66 % de los casos informan de haber mejorado en áreas no tratadas -efecto irradiación-. No se encuentran diferencias entre el grupo de abandonos y los que continúan tratamiento; los casos de éxito en comparación con los fracasos, se caracterizan por ser pacientes más jóvenes, con menos tiempo de evolución de su queja y que afecta menos a su actividad global; las sesiones son más cortas y la mejoría empieza tras la primera sesión. El grupo de casos que se "enganchan" al tratamiento presentan características similares a los fracasos (AU)


During the last decades a proliferation in the investigation on therapy results has taken place. This has allowed to count today with a big, although insufficient, empiric basis, which guarantees the psicotherapy treatments. However, there are still many controversial aspects that make necessary the that the different schools which coexist in the psicotherapy market develop suitable methods to evaluate their treatments. The aim of this investigation was to evaluate the results generated during the application of a Brief Family Therapy model in a psychologist’s desk in the Mental Health Unit of a Rural Area Hospital. A Systemic Family Therapy is used - Brief Family Therapy- following Palo Alto’s MRI and Milwaukee’s BFTC theory and practices. All the clinical cases analysed dealt with psicotherapy in the psychologist’s desk between 1999 and 2001 -N = 785- are analysed. Results obtained: 18% droped out and 82% continued the treatment; among these, 16% continue and 84% finished treatment showing 77% success and 23% failure. These results confirm previous investigations results. After a 20 months monitoring period, there are 19% of relapses, the problem has been solved for 66% of drop out cases and for 46% of failure cases. Moreover 66% inform that they have improved in areas without treatment -irradiation effect-. No differences are found between drop out cases and patients who continue treatment; success cases are patients younger than failures cases, with a shorter term evolution problem, affecting less their global activity, sessions are shorter and improvement starts after the first session. The group of cases that adhere to the treatments shows similar characteristics to the failure group cases (AU)


Subject(s)
Female , Humans , Male , Family Therapy/ethics , Family Therapy , Biomedical Research/methods , Clinical Clerkship , Patient Dropouts/psychology , Family Therapy/classification , Family Therapy/methods , Biomedical Research/instrumentation , Clinical Clerkship/methods , Multivariate Analysis , Patient Dropouts/education
16.
Ther Apher Dial ; 8(6): 492-6, 2004 Dec.
Article in English | MEDLINE | ID: mdl-15663549

ABSTRACT

The hemodialysis (HD) process involves an important degree of stress, not only for the patient but also for the family. The available data suggest that the quality of the family's performance predicts the degree of commitment that the patient acquires with the dialysis center. The establishment of a program of multiple family discussion groups allows exploration of the effect of the treatment on the patient in their context, not only regarding the illness, but also regarding the quality of life related to health, satisfaction and functional state. After the startup in the Hospital Virxe da Xunqueira of the multiple family discussion group (MFDG) for patients with chronic medical illness, the objective of this work was to evaluate the repercussions of the MFDG over the therapeutic fulfillment, the quality of life and the expectations of the patients in the chronic HD program, through the assessment of these indicators before and after their participation in this group. The MFDG was performed for a total of eight people, the families of four patients in the chronic HD program. Six weekly 1.5 hour sessions were performed and structured according to the following general contents: chronic illness impact component (2 sessions), family development component (3 sessions) and family illness integration component (1 session). Although no objectives were made for changes in relation to the therapeutic fulfillment, the average auto-effectiveness, locus of control, success and family general expectations went up slightly after the participation in the MFDG. The average specific self-effectiveness and family expectations in the presence of the illness reflected a modest increase, while the specific expectations of control locus and success in the presence of the illness decreased slightly. The scores obtained regarding the general state of health reflected a small decrease, while the evaluation of the quality of life of patients and family members showed a slight increase. We can conclude in the first place highlighting the viability of the MFDG, since no impediments were found either in recruitment of the families of the participants, or in preventing their excellent participation in the beginning and through the course of the group. Although no objectives were made for changes in relation to the therapeutic fulfillment, the high indices of satisfaction which the group obtained indicate that the discussion group is useful for the patients to find more support from their families, to change their view of the illness, to learn from other families new ways to resolve the difficulties and to increase their perception of capacity in the presence of the illness. The obtained data are preliminary and derived from only four families, but are encouraging as far as the improvement in the quality of life and the adjustment of the participants to the illness. Studies with the inclusion of more families are still pending in order to be able to arrive at conclusions based on a greater empiric basis. The records of MFDG for the families of HD patients are scarce. With this work it is attempted to reveal that these types of groups can be applied with these patients and their families, and they seem to prove beneficial for all those involved: patients, family and health professionals.


Subject(s)
Communication , Family Health , Group Processes , Renal Dialysis , Chronic Disease , Humans , Interpersonal Relations , Kidney Failure, Chronic/therapy , Quality of Life , Social Support
17.
Appl Environ Microbiol ; 68(7): 3634-8, 2002 Jul.
Article in English | MEDLINE | ID: mdl-12089053

ABSTRACT

Sensitive and specific routine detection of Ralstonia solanacearum in symptomless potato tubers was achieved by efficient enrichment followed by a reliable double-antibody sandwich indirect enzyme-linked immunosorbent assay based on the specific monoclonal antibody 8B-IVIA. This monoclonal antibody reacted with 168 typical R. solanacearum strains and did not recognize 174 other pathogenic or unidentified bacteria isolated from potato. The optimized protocol included an initial enrichment step consisting of shaking the samples in modified Wilbrink broth for 72 h at 29 degrees C. This step enabled specific detection by the enzyme-linked immunosorbent assay of 1 to 10 CFU of R. solanacearum per ml of initial potato extract. Analysis of 233 commercial potato lots by this method provided results that coincided with the results of conventional methods.


Subject(s)
Enzyme-Linked Immunosorbent Assay/methods , Proteobacteria/isolation & purification , Solanum tuberosum/microbiology , Antibodies, Monoclonal/immunology , Proteobacteria/immunology
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