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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Air as a rooting medium : an experimental air-mist chamber system for rooting cuttings using Forsythia x intermedia

Dodd, Melvin Ennis January 2011 (has links)
Digitized by Kansas Correctional Industries
2

Využití mykorhizních hub ve školkařských substrátech

Horváthová, Klaudia January 2014 (has links)
The aim of my thesis in the experimental part was to prove new composition of nursery substrate with the adding of mykorrhiza. The evaluation where there was the kind Forsythia x intermedia Z. 'Golden Times used was done in four varieties of decorative substrate with the adding of different amount of inoculant. In the checking Hample there was no inoculant used. I evaluated these parameters: height of plants, number of shoots, length of shoots, diameter of root --collar, volume of root ball and rate of mykorrhiza. This experiment was done in the experimental area of the Institution of cultivation and reproducing of garden plants of Garden faculty of the Mendel university in Lednice. The obtained results are worked statistically. The theoretical part describes other authors'experience with studying mycorrhiza's symbiosis
3

Využití mykorhizy při vegetativním množení dřevin bylinnými řízky

Králová, Olga January 2015 (has links)
My thesis tested efect of mycorrhizal fungy on herbal cutting. There was two terms propagation of four species. Syringa meyeri 'Palibin', Forsythia x intermedia 'Maluch', Cornus alba and Berberis thunbergii 'Rose Glow'. Experiment had two variantion and three repeats. Plants couldn't be nursed. Most of the results are inconclusive, because of the high losses. For species of Syringa meyeri 'Palibin' was demonstrated high influence of mycorrhizal fungi. There were also differences in terms. Overlay film had a positive impact only on Cornus alba. For species Cornus alba and Forsythia x intermedia 'Maluch' second term was more successful. When propagation of mycorrhiza has high potential.
4

Množení okrasných dřevin s využitím mykorhizy

Svobodová, Kateřina January 2016 (has links)
The aim of my thesis was experimental prove of the influence of mycorrhizal product in the production of nursery propagation by herbaceous cuttings. On trial were selected three plant species, Deutzia gracilis 'Nikko', Forsythia x intermedia 'Maluch' and Syringa meyeri 'Palibin'. The experiment was based on two dates, and was conducted of the Institution of cultivation and reproducing of garden plants of Garden faculty of the Mendel University in Lednice. Evaluation was carried out in two variants, after three repetitions. The first variant was a control without mycorrhizal product, the second was supplemented with mycorrhizal fungi. It evaluated the number of roots, number of branched roots, cuttings and mortality rate of colonization. Differences in rooting and branching roots were among species, and between terms. The positive effect of mycorrhizal fungi was at Deutzia gracilis 'Nikko' and Forsythia x intermedia 'Maluch'.
5

Ocorrência de periodontopatógenos em brasileiros portadores de periodontite crônica

de Carvalho Farias, Bruna 31 January 2009 (has links)
Made available in DSpace on 2014-06-12T23:02:15Z (GMT). No. of bitstreams: 2 arquivo969_1.pdf: 1672515 bytes, checksum: 57a925ef24be8c7dd06dd31514a160d4 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2009 / Conselho Nacional de Desenvolvimento Científico e Tecnológico / O presente trabalho teve por objetivo avaliar a presença dos periodontopatógenos que formam o complexo vermelho (Tannerella forsythia (Tf), Porphyromonas gingivalis (Pg) e Treponema denticola (Td)) e o Aggregatibacter actinomycetemcomitans (Aa) em pacientes portadores de periodontite crônica. A amostra foi constituída de 29 pacientes com diagnóstico clínico e radiográfico de periodontite crônica de acordo com os critérios da AAP (2000). Todos os dentes foram sondados em seis sítios para registro de profundidade, perda de inserção clínica e sangramento após sondagem. As amostras para análise microbiológica foram coletadas dos 4 sítios com maior profundidade de sondagem para cada paciente, totalizando 116 amostras. Estas amostras foram processadas através da técnica de PCR convencional e foram observados os seguintes resultados: 46,6% apresentaram resultado positivo para a bactéria Pg; 41,4% para Tf; 33,6% para Td e 27,6% para Aa. Não se verificou associação significante entre a presença dos periodontopatógenos e as variáveis faixa etária, sexo e sangramento à sondagem. Para a bactéria Pg verificou-se associação significante (p<0,05) com a variável placa visível, e a presença das bactérias Pg e Tf foi mais prevalente (p < 0,05) em bolsas periodontais &#8805; 8 mm. Nos sítios com profundidade &#61619; 8 mm foram observadas com maior freqüência as combinações Pg + Tf (23,2%) e Pg + Tf + Td (20,0%). Foram estatisticamente significantes (p < 0,05) as associações entre a presença simultânea das bactérias Aa + Pg, Aa+ Tf, Pg + Tf e entre Tf + Td. Concluiu-se que as bactérias analisadas, principalmente as do complexo vermelho, estiveram fortemente relacionadas com a periodontite crônica, e que as bactérias Pg e Tf foram mais frequentes em bolsas periodontais profundas
6

Inhibiting Listeria monocytogenes, Vibrio parahaemolyticus and Morganella morganii with Aqueous Methanol Extracts of Punica granatum and Galla chinensis

Wu, Jian 08 December 2014 (has links)
Listeria monocytogenes, Vibrio parahaemolyticus and Morganella morganii are closely related to foodborne illnesses caused by the consumption of seafood and ready-to-eat (RTE) food. Traditional Chinese medicines (TCM) have been widely studied as complementary and alternative medicines, and many of them have been verified to have antimicrobial properties. The purpose of this research was to study antimicrobial effects of plant extracts as potential preservatives in seafood products and to identify the primary antimicrobial compounds in plant extracts. Four plants, Pomegranate peel (PP, Punica Granatum L.), Chinese gallnut (CG, Galla chinensis), forsythia fruit (FS, Forsythia suspensa) and Baikal skullcap root (BS, Scutellaria baicalensis) were ground and extracted with 70% methanol, respectively. The extracts were diluted at tested for antimicrobial activities on V. parahaemolyticus, L. monocytogenes and M. morganii both in agar diffusion assay using tryptic soy agar (TSA), and in microdilution assay using tryptic soy broth (TSB). Both CG and PP extracts, with concentrations no lower than 1 mg/ml, significantly inhibited both V. parahaemolyticus and L. monocytogenes (P<0.01) and reduced the bacterial population by up to 4 logs. No significant inhibition was observed with FS and BS extracts, except for BS at 5 mg/ml on V. parahaemolyticus. None of the extracts showed significant inhibition against M. morganii. The antibacterial activities of CG and PP 70% methanol extracts were tested in ground raw tuna and cooked tail-on shrimp. The extracts were mixed in tuna with final concentration at 1.7 mg/ml, and applied as soaking treatments (5 mg/ml) for shrimp. Both CG and PP extracts inhibited V. parahaemolyticus on both food matrices while only CG significantly inhibited L. monocytogenes. The 70% methanol crude extract of CG was analyzed by HPLC and LC-MS. Oligo-galloyl-O-glucose (nGG, n=1-10) are the major compounds in CG. The crude CG extract was fractionated using HPLC and the fractions were collected based on elution time and tested for their antimicrobial activities against V. parahaemolyticus and L. monocytogenes using agar diffusion methods. The fractions containing 3GG-8GG were the most active antimicrobials on both bacteria. / Ph. D.
7

Periodontite em ovinos no estado do Pará: etiologia, aspectos epidemiologicos e clinico-patologicos

SILVA, Natália da Silva e 29 January 2015 (has links)
Submitted by Cássio da Cruz Nogueira (cassionogueirakk@gmail.com) on 2017-05-05T11:38:15Z No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Tese_PeriodontiteOvinosEstado.PDF: 11749160 bytes, checksum: 07582d26b606607e8e1786f83ce34921 (MD5) / Approved for entry into archive by Edisangela Bastos (edisangela@ufpa.br) on 2017-05-09T20:27:18Z (GMT) No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Tese_PeriodontiteOvinosEstado.PDF: 11749160 bytes, checksum: 07582d26b606607e8e1786f83ce34921 (MD5) / Made available in DSpace on 2017-05-09T20:27:18Z (GMT). No. of bitstreams: 2 license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Tese_PeriodontiteOvinosEstado.PDF: 11749160 bytes, checksum: 07582d26b606607e8e1786f83ce34921 (MD5) Previous issue date: 2015-01-29 / O presente trabalho relata os aspectos epidemiológicos, clinico-patológicos e bacteriológicos do primeiro registro de periodontite em ovinos no Brasil, ocorrido em uma propriedade rural no município de Benevides, Para. O surto ocorreu aproximadamente um mês após o pastejo na área de Panicum maximum cv. Massai, a qual sofreu praticas agrícolas, quando foi observado aumento de volume na mandíbula em alguns animais, em sua maioria com idade acima de 36 meses. Foi realizado o exame clinico extra-oral dos 545 ovinos e verificou-se aumento de volume da mandíbula em 3,7%. Os animais acometidos apresentavam baixo escore corporal, pelos arrepiados e sem brilho, alguns com afrouxamento e perda dos dentes pré-molares e molares inferiores e superiores, formação de abscesso e fístula no local acometido, demonstração de dor a palpação e dificuldade de mastigação. Das 39 cabeças de animais jovens analisadas no exame macroscópico post-mortem, 51,3% apresentavam lesões periodontais e das 38 analisadas após a maceração, 73,7% também apresentavam lesões. Das cabeças com lesões no exame post-mortem, em 45% as lesões encontravam-se na maxila, 15% na mandíbula e 40% nas duas estruturas (maxila e mandíbula). Nas cabeças com lesões após a maceração, 50% encontravam-se na maxila e 50% na maxila e mandíbula. Das 17 cabeças de animais adultos analisadas no exame post-mortem e após a maceração, todas apresentavam lesões periodontais. No exame post-mortem, 11,8% apresentavam lesões na mandíbula e 88,2% nas duas estruturas; após a maceração, 5,9% na maxila, 11,8% na mandíbula e 82,3% nas duas estruturas. Os achados histopatológicos revelaram processo inflamatório piogranulomatoso. Para caracterização da microbiota bacteriana subgengival de 14 ovinos com periodontite foi realizada a Reação em Cadeia da Polimerase (PCR) para pesquisa de micro-organismos pertencentes ao complexo vermelho de Socransky (Porphyromonas gingivalis, Tannerella forsythia e Treponema denticola) e outros possíveis periodontopatogenos Gram-negativos e Gram-positivos. Em 50% das amostras foi possível identificar Porphyromonas gingivalis, em 92,8% Tannerella forsythia e em 78,5% Treponema denticola. Os três periodontopatogenos pertencentes ao complexo vermelho ocorreram concomitantemente em 42,8% das amostras. Foram identificados ainda em pelo menos um animal examinado Campylobacter rectus, Eikenella corrodens, Enterococcus faecium, Fusobacterium nucleatum, Prevotella intermedia, Prevotella loeschii e Prevotella nigrescens. Não foram detectados nas 14 amostras Aggregatibacter actinomycetemcomitans, Dialister pneumosintes, Enterococcus faecalis e Porphyromonas gulae. Os resultados permitem concluir que a periodontite ovina ocorrida no município de Benevides – PA possui etiologia infecciosa e acometeu um significativo numero de animais, diversos com abaulamento da mandíbula; teve alta incidência nos jovens e envolveu a totalidade dos animais adultos examinados post-mortem e após a maceração. / This paper describes the epidemiological, clinical, pathological and bacteriological the first periodontitis record in sheep in Brazil occurred in a rural property in the municipality of Benevides, Para. The outbreak occurred about a month after grazing in the area of Panicum maximum cv. Massai, which suffered agricultural practices, there was swelling in the jaw in a few animals, mostly those over the age of 36 months. The extraoral examination was performed in 545 sheep and there was swelling of the jaw in 3.7% of them. Clinical signs were low body score, rough hair coat and dull, some relaxation and loss of premolars and upper and lower molar teeth, abscess and fistula formation in the affected site, demonstration of pain on palpation and difficulty chewing. Between the 39 heads of young animals analyzed in the post-mortem examination, 51.3% had lesions somewhere and between the 38 analyzed after maceration, 73.7% also had injuries. 45% of the lesions from the 39 heads were in the maxilla, 15% in the mandible and 40% in both structures (maxilla and mandible) and from those heads with injuries observed after maceration 50% of the lesions were in the maxilla and 50% in the maxilla and mandible. Between the 17 heads of adult animals analyzed in the post-mortem examination and after maceration all had lesions somewhere. In the post-mortem examination, 11.8% had lesions in the mandible and 88.2% in both structures; after maceration, 5.9% were in the maxilla, 11.8% in the mandible and 82.3% in both structures. The histopathological findings revealed a chronic pyogranulomatous inflammatory process. To characterize the subgingival microbiota of the 14 sheep with periodontitis it was performed the Polymerase Chain Reaction (PCR), especially for microorganisms belonging to the red complex Socransky (Porphyromonas gingivalis, Tannerella forsythia and Treponema denticola) and other possible Gram-negative and Gram-positive periodontopathogens. There were identified in 50% of the samples Porphyromonas gingivalis, Tannerella forsythia in 92.8% and Treponema denticola in 78.5%. The three periodontal pathogens belonging to the red complex occurred simultaneously in 42.8% of the samples. We also identified in at least one of the examined animals Campylobacter rectus, Eikenella corrodens, Enterococcus faecium, Fusobacterium nucleatum, Prevotella intermedia, Prevotella nigrescens, and Prevotella loeschii. In the 14 samples Aggregatibacter actinomycetemcomitans, Dialister pneumosintes, Enterococcus faecalis and Porphyromonas gulae were not detected. The results showed that the sheep periodontitis occurred in the municipality of Benevides - PA has an infectious etiology and rushed a significant number of animals, many with bulging of the jaw; had high incidence in young and involved all of the adult animals post-mortem and after maceration examined.
8

Efeito da terapia periodontal na microbiota subgengival: parâmetros clínicos e microbiológicos comparativos de PCR semi quantitativo e PCR em tempo real

Bedran, Telma Blanca Lombardo [UNESP] 26 March 2010 (has links) (PDF)
Made available in DSpace on 2014-06-11T19:27:45Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-03-26Bitstream added on 2014-06-13T20:36:12Z : No. of bitstreams: 1 bedran_tbl_me_arafo.pdf: 840586 bytes, checksum: be6bd6ce48bcc11cac07694e0d0ef66c (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / A correta distinção dos micro-organismos envolvidos na patogênese da doença periodontal torna-se importante para o entendimento da sua progressão, auxiliando no adequado planejamento do tratamento periodontal. Assim métodos moleculares tornam-se ferramentas de grande valia no diagnóstico microbiológico. A técnica do PCR convencional é um método já estabelecido na literatura, porém não permite uma quantificação exata das amostras avaliadas. Com isso o PCR em tempo real surgiu para complementar o PCR convencional. O objetivo do presente estudo foi realizar a análise comparativa de ambas as técnicas na detecção de Porphyromonas gingivalis, Tannerella forsythia e Porhyromonas endodontalis. Foram selecionados 20 pacientes sistemicamente saudáveis, com doença periodontal crônica generalizada. Após o exame clínico periodontal completo, 30 amostras de sítios doentes não adjacentes (PS ≥ 5 e 7 mm com sangramento a sondagem) e 30 amostras de sítios sadios não adjacentes (PS ≤ 3 mm e ausência de sangramento a sondagem) foram coletados antes e 60 dias após a terapia periodontal básica de raspagem, alisamento radicular e instrução de higiene oral. O PCR convencional, PCR em tempo real e primers específicos para cada técnica foram utilizados para análise microbiológica. Para a análise comparativa entre as técnicas o PCR em tempo real foi dividido em 3 scores de acordo com a quantidade de DNA e o PCR convencional em 2 scores, presente e ausente. As análise estatísticas foram realizadas utilizados o software GraphPad. Os resultadosmostraram que o PCR em tempo real possui maior sensibilidade e especificidade na detecção dos micro-organismos P. endodontalis, P. gingivalis e T. forsythia, os quais foram detectados em maiores proporções nos sítios doentes quando comparados aos sítios... / The correct distinguishment of microorganisms involved in the periodontal disease pathogen, it is important in the understanding of its progression and adequate treatment planning, in this way, different microbiologic diagnostic molecular methods became key instruments. The conventional PCR technique is a well established method, however does not permit a precise quantification of the evaluated samples, being complemented by the real time PCR. The aim of the present study was to realize a comparative analysis of both techniques in the detection of Porphyromonas gingivalis, Tannerella forsythia e Porhyromonas endodontalis. 20 systemically healthy patients, with established generalized cronic periodontal disease were selected. After a complete clinical periodontal exam, 30 non adjacent affected sites samples (Depth Probing ≥ 5 e 7 mm with positive bleeding) and 30 non adjacent healthy sites samples (depth probing ≤ 3 mm with negative bleeding) were collected initially and 60 days after a basic periodontal therapy, root scaling and oral hygiene instructions. Conventional PCR, real time PCR and specific primers for it technique were used for microbiological analysis. To permit a comparative analysis between both PCR methods studied, the real time PCR was divided in 3 different scores, in accordance to DNA quantity and the conventional PCR in 2 scores, present or absent. The GraphPad software was used to make the statistical analysis. The results demonstrated that the real time PCR are more sensitive and specific in the detection of P. endodontalis, P. gingivalis and T. forsythia, detecting them in a higher proportion in the affected sites when compared to the healthy sites. After the basic periodontal therapy, there was a significant reduction of the bacteria analyzed. That way, can be suggested that presence of... (Complete abstract, click electronic access below)
9

Efeito da terapia periodontal na microbiota subgengival : parâmetros clínicos e microbiológicos comparativos de PCR semi quantitativo e PCR em tempo real /

Bedran, Telma Blanca Lombardo. January 2010 (has links)
Resumo: A correta distinção dos micro-organismos envolvidos na patogênese da doença periodontal torna-se importante para o entendimento da sua progressão, auxiliando no adequado planejamento do tratamento periodontal. Assim métodos moleculares tornam-se ferramentas de grande valia no diagnóstico microbiológico. A técnica do PCR convencional é um método já estabelecido na literatura, porém não permite uma quantificação exata das amostras avaliadas. Com isso o PCR em tempo real surgiu para complementar o PCR convencional. O objetivo do presente estudo foi realizar a análise comparativa de ambas as técnicas na detecção de Porphyromonas gingivalis, Tannerella forsythia e Porhyromonas endodontalis. Foram selecionados 20 pacientes sistemicamente saudáveis, com doença periodontal crônica generalizada. Após o exame clínico periodontal completo, 30 amostras de sítios doentes não adjacentes (PS ≥ 5 e 7 mm com sangramento a sondagem) e 30 amostras de sítios sadios não adjacentes (PS ≤ 3 mm e ausência de sangramento a sondagem) foram coletados antes e 60 dias após a terapia periodontal básica de raspagem, alisamento radicular e instrução de higiene oral. O PCR convencional, PCR em tempo real e primers específicos para cada técnica foram utilizados para análise microbiológica. Para a análise comparativa entre as técnicas o PCR em tempo real foi dividido em 3 scores de acordo com a quantidade de DNA e o PCR convencional em 2 scores, presente e ausente. As análise estatísticas foram realizadas utilizados o software GraphPad. Os resultadosmostraram que o PCR em tempo real possui maior sensibilidade e especificidade na detecção dos micro-organismos P. endodontalis, P. gingivalis e T. forsythia, os quais foram detectados em maiores proporções nos sítios doentes quando comparados aos sítios... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: The correct distinguishment of microorganisms involved in the periodontal disease pathogen, it is important in the understanding of its progression and adequate treatment planning, in this way, different microbiologic diagnostic molecular methods became key instruments. The conventional PCR technique is a well established method, however does not permit a precise quantification of the evaluated samples, being complemented by the real time PCR. The aim of the present study was to realize a comparative analysis of both techniques in the detection of Porphyromonas gingivalis, Tannerella forsythia e Porhyromonas endodontalis. 20 systemically healthy patients, with established generalized cronic periodontal disease were selected. After a complete clinical periodontal exam, 30 non adjacent affected sites samples (Depth Probing ≥ 5 e 7 mm with positive bleeding) and 30 non adjacent healthy sites samples (depth probing ≤ 3 mm with negative bleeding) were collected initially and 60 days after a basic periodontal therapy, root scaling and oral hygiene instructions. Conventional PCR, real time PCR and specific primers for it technique were used for microbiological analysis. To permit a comparative analysis between both PCR methods studied, the real time PCR was divided in 3 different scores, in accordance to DNA quantity and the conventional PCR in 2 scores, present or absent. The GraphPad software was used to make the statistical analysis. The results demonstrated that the real time PCR are more sensitive and specific in the detection of P. endodontalis, P. gingivalis and T. forsythia, detecting them in a higher proportion in the affected sites when compared to the healthy sites. After the basic periodontal therapy, there was a significant reduction of the bacteria analyzed. That way, can be suggested that presence of... (Complete abstract, click electronic access below) / Orientador: Denise Madalena Palomari Spolidorio / Coorientador: Rosemary Adriana Chiérici Marcantonio / Banca: Poliana Duarte / Banca: Joni Augusto Cirelli / Mestre
10

Využití mykorhizy při vegetativním množení dřevin bylinnými řízky

Ján, Jakub January 2017 (has links)
The topic of the diploma thesis was the study of the influence of commercial mycorrhizal preparation on the rooting of softwood cuttings of two selected species of ornamental shrubs (Forsythia × intermedia 'Maluch' and Weigela florida 'Piccolo'). The main objective was to find out whether the mycorrhizal preparation can make the process of vegetative propagation more efficient and favourably influence the formation of roots. The used preparation contained arbuscular mycorrhizal fungi of the genus Glomus, two different amounts of the preparation were used. The experiment was carried out in the summer months of the year 2016. The experiment was founded in a plastic greenhouse on the ground of the Faculty of Horticulture in Lednice in Moravia (the Czech Republic), two main terms of propagation passed (in June and August) and one supplementary term passed (in August). The total number of adventitious roots, the number of branched roots, the length of shoots and the mortality of cuttings were evaluated. Mycorrhizal colonization of roots was evaluated in the laboratory under the microscope. The results of the experiment did not show that the used mycorrhizal preparation can positively affect the rooting of softwood cuttings, the application of the mycorrhizal inoculum did not improve the efficiency of vegetative propagation and did not provide convincing advantages. Mycorrhizal fungi did not stimulate the growth of cuttings, and in fact they did not influence the number of adventitious roots neither in Forsythia × intermedia 'Maluch', nor in Weigela florida 'Piccolo'. The only significant positive was that the Weigela florida 'Piccolo' had a higher number of branched roots after inoculation. The observation of roots under the microscope showed that the roots of both species were colonized by arbuscular mycorrhizal fungi, but the extent of colonization did not reach high levels. Mycorrhizal inoculation of propagation substrate cannot be recommended as an effective method that would improve rooting. However, it should be added that the experiment only passed for one year and the results were based only on one term of propagation. Thus the influence of mycorrhizal fungi on the rooting of plant cuttings should be the subject of further research.

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