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Rozprawy doktorskie na temat „Pest infection”

Autor: Grafiati

Data publikacji: 3 czerwca 2025

Data aktualizacji: 31 lipca 2025

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1

Bath, Abigail Jane. "Temperature and infection by Metarhizium spp. in the desert locust." Thesis, University of Bath, 1997. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.245884.

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2

Sitch, Joanne Claire. "The resistance of non target invertebrates to infection by the entomopathogenic fungus Verticillium lecanii (Zimm.) viegas." Thesis, University of Southampton, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.388348.

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3

Mathieu, Danielle. "Effects of temperature and duration of leaf wetness on infection of celery by Septoria apiicola, and cultivar screening for partial resistance." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61198.

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The number of lesions increased with increasing temperatures over the range of wet periods except at 30$ sp circ$C, where their number decreased with increasing wetness duration. Cultivars were evaluated for partial resistance under field and greenhouse conditions. In the field ranking was based on cluster analysis of the standard area under the disease progress curve (SAUDPC) for intervals between sampling dates. In the greenhouse, the cultivars were evaluated on the basis of their response relative to five components of partial resistance: the SAUDPC, mean lesion area (MLA), pycnidial densit

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4

Freeborough, Michael-John 1971. "A pathogen-derived resistance strategy for the broad-spectrum control of grapevine leafroll-associated virus infection." Thesis, Stellenbosch : Stellenbosch University, 2003. http://hdl.handle.net/10019.1/53285.

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Thesis (PhD)--University of Stellenbosch, 2003.<br>ENGLISH ABSTRACT: Grapevine leafroll-associated virus-3 is one of ten members of the C/osteroviridae that are known to infect grapevine. Nine of these viruses are associated with grapevine leafroll disease, of which GLRaV-1 and GLRaV-3 are the most important and widespread. Members of the C/osteroviridae are unique amongst the viruses, as it is the only known family whose members encode a heat shock protein 70 kOa homolog (Hsp70h). The Hsp70h is a movement protein (MP) that is required for the active translocation of the virion structur

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5

Pocock, Michael James Orlando. "The spatial population dynamics of house mice (Mus musculus domesticus) with reference to the potential transmission of zoonoses." Thesis, University of York, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369343.

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Barton, Ksenia O. "Patterns of survivorship and susceptibility to rust infection in a population of Arisaema triphyllum." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape10/PQDD_0005/MQ44123.pdf.

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7

Hauxwell, Irene Caroline. "Evaluation of potential baculovirus insecticides : studies of the infection process and host susceptibility." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312316.

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8

Bohórquez, Garzón José Alejandro. "Immunopathogenesis of persistent and subclinical infections generated by Classical swine fever virus." Doctoral thesis, Universitat Autònoma de Barcelona, 2021. http://hdl.handle.net/10803/673869.

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La pesta porcina clàssica (PPC) continua sent una de les malalties més importants en sanitat animal, inclosa a la llista de malalties de declaració obligatòria de l’Organització Mundial de Sanitat Animal (OIE). És causat pel virus de la PPC (VPPC), membre del gènere Pestivirus de la família Flaviviridae. A causa de les greus conseqüències de la PPC, en termes socioeconòmics, el control de la malaltia als països endèmics es considera una tasca de gran importància. Un dels reptes per al control de la malaltia és la presència de formes persistents de PPC al camp, que poden ser congènites o postna

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9

Cartagena, Juan Carlos. "Contribution a l'etude de la sensibilite des insectes aux maladies infectieuses : influence de la fumure sur la sensibilite d'un insecte phytophage, spodoptera littoralis, boisduval (lepidoptera, noctuidae), a la polyedrose nucleaire." Paris 6, 1987. http://www.theses.fr/1987PA066152.

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On etudie la biologie du developpement et la sensibilite des chenilles de s. Littoralis a une polyedrose nucleaire. L'etude est realisee en fonction des fumures appliquees sans discontinuite chaque annee sur une culture de betteravess. Une carence azotee du regime alimentaire retarde le developpement des larves. Une deficience en phosphore provoque une diminution de la capacite reproductive des adultes. La sensibilite des chenilles a la virose est liee a la teneur de l'azote dans les feuilles et croit avec l'age des feuilles sur lesquelles elles s'alimentent

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10

Du, Preez Izak Frederik. "Infection pathways of Botrytis cinerea on selected wine grape cultivars." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52889.

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Thesis (MScAgric)--University of Stellenbosch<br>ENGLISH ABSTRACT: An understanding of the infection pathways of Botrytis cinerea in grape bunches will help to combat this devastating pathogen of grape. Many studies have been done to determine the possible infection pathways of B. cinerea. Most of these studies made use of artificial inoculations that deposit groups of conidia on the plant surface. The deposition of clusters of conidia is not a common phenomenon in nature. The aim of this study was to investigate the infection pathways of (i) naturally- as well as (ii) artificially inocu

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11

Bigelow, Donna M., and Mary W. Olsen. "Infection of Selected Turfgrasses by Labyrinthula terrestris." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2004. http://hdl.handle.net/10150/216576.

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A number of turfgrasses were screened in the greenhouse and laboratory for susceptibility to Labyrinthula terrestris, a new turfgrass pathogen that causes rapid blight of cool season turfgrasses. Salt tolerant varieties and warm season grasses such as Bermuda grass, tufted hairgrass, inland saltgrass, centipede grass, seashore paspalum and kikuyugrass were not susceptible; cool season grasses such as velvet bentgrass, annual ryegrass, perennial ryegrass, annual bluegrass, Kentucky bluegrass, and rough bluegrass were very susceptible.

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12

Carisse, Odile. "Spore production, factors influencing infection and determination of a disease threshold for Cercospora blight of carrot." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=55698.

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13

Tobin, Michael. "The characterisation of a nucleopolyhedrovirus infecting the insect Trichoplusia ni." Thesis, Cape Peninsula University of Technology, 2019. http://hdl.handle.net/20.500.11838/2979.

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Thesis (MSc (Biomedical Sciences))--Cape Peninsula University of Technology, 2019<br>Background: Baculoviruses have great potential as alternatives to conventional chemical insecticides. The large scale adoption of such agents has however been hampered by the slow killing times exhibited by these bio-insecticides, limitation to single target insect and difficulty of large scale production of these preparations. Trichoplusia ni single nucleopolyhedrovirus (TnSNPV), initially identified in the Eastern Cape region of South Africa, has potential as a biocontrol agent as it possesses a higher speed

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14

Crespo, António Pedro Marcos Avérous Mira. "Controlo de pragas no Jardim Zoológico de Lisboa : particular relevância para o controlo de roedores e sua infeção parasitária." Master's thesis, Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária, 2012. http://hdl.handle.net/10400.5/4937.

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Dissertação de Mestrado em Segurança Alimentar<br>Os parques zoológicos constituem ecossistemas partilhados por espécies domésticas e silvestres e pelo Homem, o que facilita a entrada de agentes patogénicos, sendo fundamental o estabelecimento de um programa de medicina veterinária preventiva, onde o cumprimento de todas as regras de segurança e higiene e o controlo de pragas são fundamentais. Assim, o presente estudo que decorreu no Jardim Zoológico de Lisboa, durante o ano de 2011, teve como objetivo efetuar um levantamento sobre as práticas de higiene e segurança, com ênfase no controlo de

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15

Tomimatsu, Gail Susan. "Quantitative Investigations of Infection and Colonization of Peanut Roots by Cylindrocladium crotalariae." Diss., Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/76172.

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Cylindrocladium black rot (CBR) is a destructive root disease of peanut caused by Cylindrocladium crotalariae. New and quantitative approaches were developed to estimate the inoculum potential for this soil-borne pathogen under soil-temperature tank conditions favorable for CBR development. Using cultural plating methods, numerous Q. crotalariae infections (1 to > 1,000 per plant) were observed on asymptomatic root systems of peanut plants, susceptible and resistant to CBR, grown in naturally infested soils at 25 C. Regression-line slope values of log10-log10 plots for microsclerotial inoculum

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16

Himmel, Phyllis Terry. "Asymptomatic infections of Euphorbia lathyris by Macrophomina phaseolina." Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184594.

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In November of 1984 and 1985, Euphorbia lathyris was planted into a field naturally infested with Macrophomina phaseolina located at the Campbell Avenue Farm in Tucson, Arizona. Plants without foliar symptoms and rhizosphere soil were sampled regularly from emergence until the following May or June. Soil rhizosphere populations ranged from 0.7-3.0 cfu/g soil in 1985 to 8.0-24.1 cfu/g soil in 1986, and did not change significantly over either growing season (P > 0.05). Both the incidence of disease and the number of infection sites per cm of root increased significantly (P < 0.05) over each gro

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17

Jukes, Michael David. "Baculovirus synergism: investigating mixed alphabaculovirus and betabaculovirus infections in the false codling moth, thaumatotibia leucotreta, for improved pest control." Thesis, Rhodes University, 2018. http://hdl.handle.net/10962/61797.

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Baculovirus based biopesticides are an effective and environmentally friendly approach for the control of agriculturally important insect pests. The false codling moth (FCM), Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae), is indigenous to southern Africa and is a major pest of citrus crops. This moth poses a serious risk to export of fruit to foreign markets and the control of this pest is therefore imperative. The Cryptophlebia leucotreta granulovirus (CrleGV) has been commercially formulated into the products Cryptogran™ and Cryptex®. These products have been used successfull

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18

Prendki, Virginie Tequi Brigitte. "La résistance de type LSA chez Staphylococcus aureus peut-elle être un outil pour comprendre la transmission des SARM à l'hôpital ?" [S.l.] : [s.n.], 2004. http://theses.univ-nantes.fr/thesemed/SPEprendki.pdf.

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19

Wanner, James Leo. "Effects of infection by dwarf mistletoe (Arceuthobium americanum) on the population dynamics of lodgepole pine (Pinus contorta)." PDXScholar, 1986. https://pdxscholar.library.pdx.edu/open_access_etds/518.

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Dwarf mistletoes are Parasitic flowering plants that infect conifer tree species. The effects of Arceuthobium americanum on the seed crop of Pinus contorta were examined over a two year period to evaluate the effects of altered host reproductive success on host population dynamics. Heavily infected trees produced significantly fewer cones than uninfected trees during the first season in which cones were collected. Cone length, number of seeds per cone, individual seed mass, and total calories per seed were significantly reduced in moderately and heavily infected trees. Trees with different lev

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20

Pierson, Frank William. "The roles of multiple infectious agents in the predisposition of turkeys to colibacillosis." Diss., Virginia Tech, 1993. http://hdl.handle.net/10919/29318.

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Colibacillosis is considered one of the more costly diseases encountered in the production of market turkeys. It is responsible for a significant amount of mortality in birds between the ages of 6-12 weeks. Research conducted over the past 5 years has shown that within the Shenandoah Valley production area, multiple primary infectious agents are responsible for the predisposition of turkeys to colibacillosis. These agents were first identified as potential contributors through field case studies. They include hemorrhagic enteritis (HE) virus, Newcastle disease virus, and Bordetella avium. F

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21

Tebourbi-Chikhaoui, Lamia. "Le spermatozoi͏̈de fécondant peut-il transmettre le cytomégalovirus à l'embryon ? : étude expérimentale chez la souris." Paris 7, 2001. http://www.theses.fr/2001PA077149.

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22

Loeffler, Anette. "Epidemiological and genetic investigations of meticillin-resistant Staphylococcus aureus in companion animals." Thesis, Royal Veterinary College (University of London), 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558972.

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The hypotheses challenged in this project were (1) people are the source for meticillin-resistant Staphylococcus aureus (MRSA) in pets, (2) risk factors for MRSA infection and carriage mirror those described in humans, (3) S. aureus continues to evolve on animals, (4) MRSA is carried by a substantial number of companion animals and (5) pets can be a reservoir for MRSA. Risk factors for MRSA pet infection were determined in a UK-wide case-control study enrolling dogs and cats with S. aureus infection (138 MRSA; 122 MSSA), their veterinary staff and owners. MRSA were typed and 12 paired human-an

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23

Sassi, Giovanna. "Relative quantification of host gene expression and protein accumulation upon turnip mosaic potyvirus infection in tobacco." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=81433.

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Turnip mosaic virus (TuMV) infects a variety of crops, worldwide, including the economically relevant Brassicacea family. It was previously demonstrated that TuMV infection in tobacco protoplasts leads to an overall decrease of host protein. However, it remains unclear whether this phenomenon is due to the repression of plant gene transcription during the infection period or due to viral inhibition of host translation. In this study, quantification of various transcripts and protein products from infected tobacco was performed via real-time RT-PCR and ELISA. In comparison to the gamma-t

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24

Fandohan, Pascal. "Fusarium infection and mycotoxin contamination in preharvest and stored maize in Benin, West Africa." Thesis, University of Pretoria, 2004. http://hdl.handle.net/2263/24999.

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Nigh, E. L. Jr. "Timing Nematicide Application for Control of Stem Nematodes Infecting Arizona Alfalfa." College of Agriculture, University of Arizona (Tucson, AZ), 1988. http://hdl.handle.net/10150/200832.

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The stem nematode Ditylenchus dipsaci attacks non-dormant Arizona alfalfa in the desert valleys; damage occurs during the cooler months of fall and spring. Efforts to introduce and retain resistant alfalfa has had limited success. From October until temperatures decrease below 50 F., the nematode reproduces and feeds. In warmer years, damage may be sustained from October until spring temperatures exceed 85 F. Chemical control may be warranted during these periods of feeding activity. Field trials were established to determine the efficacy of pesticides registered for use in alfalfa. Temil; Vyd

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26

Dunfield, Peter F. "Effects of a sugar-factory byproduct compost on root growth and mycorrhizal infection of sugarcane in Barbados." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60017.

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A compost consisting 95% of the sugar mill byproducts: bagasse, filter press mud, and fly ash, applied at 5 t ha$ sp{-1}$, increased vesicular-arbuscular mycorrhizal infection of sugarcane roots in one of three experimental fields in Barbados. In a plant cane field, compost stimulated formation of intracellular hyphal coils and arbuscules, but not vesicles or hyphae. Infection was greater in roots 35 cm and 65 cm than 5 cm distant from the plant stem, and compost effects were not significant at 5 cm. Two other sources of phosphorus, filter press mud and triple superphosphate, did not affect an

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27

Alonso, Jean-Michel. "Deux approches différentes dans la stratégie d'immunoprévention des infections bactériennes transmissibles : le modèle Yersinia et le modèle Bordetella." Paris 11, 1988. http://www.theses.fr/1988PA112048.

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La peste, zoonose accidentellement transmissible à l’homme, due à Yersinia pestis, provoquant une infection systémique, par invasion cellulaire, et la coqueluche, infection toxinique, non invasive, du tractus respiratoire, strictement humaine, due à Bordetella pertussis, sont deux modèles de maladies infectieuses épidémiques totalement différents, par leur épidémiologie, leurs processus physiopathologiques et par les mécanismes immunitaires qui s'opposent à leur développement. Les stratégies d'immunoprévention les plus rationnelles, fondées sur les études physiopathologiques, que nous avons ré

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28

Van, Rooi Cicelia. "Infection by dry, airborne Botrytis cinerea conidia and fungicide efficacy on different parts of grape bunches and vinelets." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/52888.

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Thesis (MScAgric)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: The evaluation of fungicide efficacy in commercial vineyards can be influenced by the sporadic occurrence of Botrytis cinerea at various positions on vines, differences in bunch structure during bunch development and the phenomenon that symptom expression in shoots and bunches is governed by the resistance reaction of the various shoot and bunch parts. It has been postulated that, following air and water dispersal, infection by solitary conidia should playa prominent role in the epidemiology of B. cinerea on grapev

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29

Gebreegziabher, Berhe. "Development of dual vaccines for the control of peste des petits ruminants and capripox infections of small ruminants." Toulouse, INPT, 2006. http://ethesis.inp-toulouse.fr/archive/00000442/.

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L'objectif de cette thèse était de développer des vaccins bivalents qui pourraient contribuer à une baisse du coût des campagnes de vaccination contre la PPR et la variole des petits ruminants et thermotolérants, caractéristique liée au virus capripox. Nous avons inséré dans le génome d'une souche vaccinale de virus capripox, la souche KS1, l'ADN complémentaire (ADNc) des gènes des protéines vaccinantes du virus de la PPR, la protéine de fusion (F) et l'hémagglutinine. Les virus capripoxvirus sont très spécifiques de leurs hôtes, les bovins, les chêvres et les moutons. Ils ne sont pas pathogèn

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Gebreegziabher, Berhe Picavet Dominique-Pierre. "Development of dual vaccines for the control of peste des petits ruminants and capripox infections of small ruminants." Toulouse : INP Toulouse, 2007. http://ethesis.inp-toulouse.fr/archive/00000442.

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Wallage, Helena Rachelle. "The effects of Plagiorchis elegans (Trematoda : Plagiorchiidae) infection on the carbohydrate metabolism of fourth instar Aedes aegypti (Diptera : Culicidae) larvae." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=30763.

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Glucose was present in substantially greater concentrations in whole body extracts of fourth instar Aedes aegypti L. larvae than was trehalose; in contrast, trehalose was more abundant than glucose in haemolymph extracts. Preliminary studies suggested that infection of Ae. aegypti by the entomopathogenic digenean Plagiorchis elegans Rudolphi alters the carbohydrate metabolism of fourth instar larvae. Within 24 hours of cercarial penetration, total body extracts of infected fourth instar larvae exhibited decreased trehalase activity, increased trehalose-6-phosphatase activity, and an accumulati

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Olsen, Mary W., and Deborah Young. "True Mistletoes." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011. http://hdl.handle.net/10150/146718.

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3 pp.<br>Originally published: 2003<br>True mistletoes are parasitic flowering plants with characteristic clumps of growth that are easily visible on the host plant. They reduce the growth of infected hosts, but it usually takes many years for true mistletoe infections to kill a mature tree or shrub. This article gives information about the disease cycle, the symptoms and prevention and control methods for true mistletoes.

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Kasiamdari, Rina Sri. "Interactions between arbuscular mycorrhizal fungi and other root-infecting fungi." Title page, contents and abstract only, 2001. http://web4.library.adelaide.edu.au/theses/09PH/09phk1887.pdf.

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Blanchet, Charlène. "Identification de facteurs génétiques contrôlant la résistance de lignées de souris consanguines à une infection expérimentale par Yersinia pestis, l'agent de la peste." Phd thesis, AgroParisTech, 2009. http://pastel.archives-ouvertes.fr/pastel-00606835.

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La peste est une zoonose touchant principalement les rongeurs et de façon accidentelle l'Homme. L'agent responsable de la peste bubonique et pulmonaire est la bactérie Gram négative Yersinia pestis. Les mécanismes qui permettent à l'hôte de résister ou non à cette infection sont mal connus. Nous avons montré que certaines lignées consanguines de souris, comme C57BL/6J, meurent après l'injection sous cutanée de 100 bactéries d'une souche virulente (CO92) alors que d'autres, comme SEG/Pas, dérivée de Mus spretus, résistent. Un croisement en retour entre ces deux lignées a permis d'identifier, su

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35

Shrestha, Subidhya. "Histology of Spot Blotch Infection in Barley, QTL Mapping of Resistance to Fusarium Head Blight, and Characterization of Root Rot Diseases in Wheat." Diss., North Dakota State University, 2017. https://hdl.handle.net/10365/28391.

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Three independent studies were conducted for spot blotch (Bipolaris sorokiniana), Fusarium head blight (FHB) (Fusarium graminearum), and root rot diseases (Fusarium species and B. sorokiniana). Histopathology of compatible and incompatible interactions between different pathotypes of B. sorokiniana and different genotypes of barley was examined with red fluorescent protein-tagged fungal isolates. The fungus penetrated the host cell wall and developed multicellular globular infection hyphae (IH) in the lumen of epidermal cells, but infected epidermal cells appeared to be alive till 16 hours pos

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Bernard, Jennifer. "Caractérisation de la compétence vectorielle des tiques Ornithodores pour le virus de la peste porcine africaine et étude de deux déterminants : la relation souche virale – vecteur et l’influence de la salive de tiques sur l’infection chez le porc domestique." Thesis, Montpellier, 2015. http://www.theses.fr/2015MONTS099/document.

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La peste porcine africaine (PPA) est une maladie hémorragique contagieuse dévastatrice pour l’élevage porcin pour laquelle aucun traitement ni vaccin ne sont disponibles. Cette infection est due à un virus à ADN, unique membre de la famille des Asfarviridae, qui se transmet directement entre suidés ou via un vecteur, la tique du genre Ornithodoros. Le rôle de ces tiques dans le cycle épidémiologique de la PPA consiste principalement à maintenir le virus dans les populations de suidés sauvages en Afrique. Elles ont aussi été identifiées à l’origine de certains cas de résurgence de la maladie da

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37

Visser, Marike. "Small RNA profiling of virus-infected apple plants." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95828.

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Thesis (PhD)--Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: Apple stem grooving virus (ASGV) is globally associated with latent infection in commercial apple trees. Little is known about this plant-‐virus interaction. This study made use of next-‐generation sequencing to investigate the effect of virus-‐infection on the expression of the different small RNA (sRNA) species namely, miRNAs, nat-‐siRNAs, phasiRNAs, rasiRNAs, tRNA-‐derived sRNAs and vsiRNAs. Broad and narrow size-‐range datasets were generated using sRNA libraries prepared from total and size-‐selected RNA, res

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Jamin, Agnès. "Caractérisation de cellules dendritiques dans les organes lymphoïdes secondaires et le sang du porc sain et étude de leur activation après infection par le virus de la peste porcine classique." Rennes 1, 2006. http://www.theses.fr/2006REN1S122.

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Des cellules dendritiques conventionnelles (cDC) et plasmacytoïdes (pDC) immatures et semi-matures ont été identifiées dans les zones T des organes lymphoïdes secondaires et le sang de porcs sains. Après infection des porcs par le virus de la peste porcine classique, les DC deviennent matures et actives en 24 h en prenant en charge le virus pour initier la réponse immunitaire innée dans les zones T de l’amygdale. Les lymphocytes B activés co-localisées avec l’antigène viral E2 migrent des centres germinatifs vers les zones T de l’amygdale après 48 h. Les pDC sont recrutées dans le sang, mais l

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Chevallier, Lucie. "Recherche de facteurs génétiques contrôlant la résistance de lignées de souris consanguines à une infection expérimentale par Yersinia pestis, l'agent de la peste." Phd thesis, AgroParisTech, 2012. http://pastel.archives-ouvertes.fr/pastel-00880257.

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Yersinia pestis, l'agent de la peste, est une bactérie à Gram-négatif classée comme agent pathogène ré-émergent et potentielle arme de bioterrorisme. De plus, l'apparition d'une souche multi-résistance de cette bactérie souligne la nécessité de mieux comprendre comment cette bactérie hyper-virulente interagit avec son hôte. Afin d'identifier des facteurs génétiques de vulnérabilité à la peste, notre laboratoire travaille sur la réponse de souris résistantes versus sensibles à Y. pestis. Notre stratégie pour identifier les facteurs génétiques impliqués dans la résistance/sensibilité à la peste

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Blanchet, Charlène. "Identification de facteurs génétiques contrôlant la résistance de lignées de souris consanguines à une infection expérimentale par Yersinia pestis, l'agent de la peste." AgroParisTech, 2010. http://pastel.archives-ouvertes.fr/docs/00/60/68/35/PDF/These_Charlene_BLANCHET.pdf.

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La peste est une zoonose touchant principalement les rongeurs et de façon accidentelle l'Homme. L'agent responsable de la peste bubonique et pulmonaire est la bactérie Gram négative Yersinia pestis. Les mécanismes qui permettent à l'hôte de résister ou non à cette infection sont mal connus. Nous avons montré que certaines lignées consanguines de souris, comme C57BL/6J, meurent après l'injection sous cutanée de 100 bactéries d'une souche virulente (CO92) alors que d'autres, comme SEG/Pas, dérivée de Mus spretus, résistent. Un croisement en retour entre ces deux lignées a permis d'identifier, su

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Chevallier, Lucie. "Recherche de facteurs génétiques contrôlant la résistance de lignées de souris consanguines à une infection expérimentale par Yersinia pestis, l’agent de la peste." Thesis, Paris, AgroParisTech, 2012. http://www.theses.fr/2012AGPT0077/document.

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Yersinia pestis, l'agent de la peste, est une bactérie à Gram-négatif classée comme agent pathogène ré-émergent et potentielle arme de bioterrorisme. De plus, l'apparition d'une souche multi-résistance de cette bactérie souligne la nécessité de mieux comprendre comment cette bactérie hyper-virulente interagit avec son hôte. Afin d'identifier des facteurs génétiques de vulnérabilité à la peste, notre laboratoire travaille sur la réponse de souris résistantes versus sensibles à Y. pestis. Notre stratégie pour identifier les facteurs génétiques impliqués dans la résistance/sensibilité à la peste

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Tully, James Kevin. "Influence of endophyte infection of tall fescue with and without white clover on performance, intake, and bite size in steers during the grazing season and subsequent performance in the feedlot." Diss., Virginia Tech, 1992. http://hdl.handle.net/10919/39927.

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Morton, J. D. "The effect on protein synthesis in barley of infection with P. hordei." Lincoln College, University of Canterbury, 1989. http://hdl.handle.net/10182/1950.

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Infection of barley (Hordeum vulgare) leaves with the rust fungus, Puccinia hordei, causes changes in the host protein synthesis. This thesis analyses these changes in the barley cultivar Triumph following inoculation of 7-day-old leaves with either a virulent or an avirulent race of P. hordei. The initial approach was to isolate membrane-bound polysomes from infected leaves, translate them in vitro and analyse the translation products. These products include the integral membrane proteins which were expected to be involved in the response of the host to the pathogen. A method based on differ

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Dauthuille, Dominique. "Etude écopathologique de deux baculovirus pathogènes de Spodoptera Frugiperda (J. E. Smith) (lépidoptère : noctuidae) en prairie guyanaise à Digitaria Swazilandensis Stent." Paris 6, 1986. http://www.theses.fr/1986PA066484.

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Deux baculovirus, une granulose et une polyédrose nucléaire, isolés de S. F. En Guyane française sont décrits. Les deux maladies sont responsables d'enzooties dans les populations du ravageur en prairie à d. S. La valeur maximale de la mortalité larvaire naturelle engendrée par les deux virus, déterminée après échantillonnage et élevage au laboratoire, est de 32%. La cyclicité de la présence sur une même parcelle de la noctuelle et de ses baculovirus est due au mode de conduite des exploitations agricoles. Les taux de mortalité larvaire par granulose et par polyédrose nucléaire sont variables

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Saavedra, Ramon da Costa. "Infecção por Yersinia pestis na Bahia: controle efetivo ou silêncio epidemiológico?" Programa de pós-graduação em saúde coletiva, 2010. http://www.repositorio.ufba.br/ri/handle/ri/10344.

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p. 1-71<br>Submitted by Santiago Fabio (fabio.ssantiago@hotmail.com) on 2013-04-23T20:07:08Z No. of bitstreams: 1 11111ee.pdf: 1402726 bytes, checksum: 47dcda030901a96f687080b863e3c5a0 (MD5)<br>Approved for entry into archive by Maria Creuza Silva(mariakreuza@yahoo.com.br) on 2013-05-04T17:25:32Z (GMT) No. of bitstreams: 1 11111ee.pdf: 1402726 bytes, checksum: 47dcda030901a96f687080b863e3c5a0 (MD5)<br>Made available in DSpace on 2013-05-04T17:25:32Z (GMT). No. of bitstreams: 1 11111ee.pdf: 1402726 bytes, checksum: 47dcda030901a96f687080b863e3c5a0 (MD5) Previous issue date: 2010<br>Apesar de

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Kottler, Stephanie J. "Prevalence of Staphylococcus aureus and MRSA carriage in three populations." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/6066.

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Thesis (M.S.)--University of Missouri-Columbia, 2008.<br>The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. "December 2008" Includes bibliographical references.

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Ayari-Fakhfakh, Saïda Emna. "Contribution au développement d’un modèle vaccinal recombinant pour le contrôle des trois infections virales majeures des ruminants, la variole, la PPR et la RVF, adapté à la situation épidémiologique des pays du Maghreb." Thesis, Montpellier 2, 2011. http://www.theses.fr/2011MON20009/document.

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L'objectif de cette thèse est le développement d'un vaccin recombinant capripoxvirus protégeant contre la variole des ruminants, la Fièvre de la Vallée du Rift (FVR) et la Peste des Petits Ruminants (PPR) comme modèle vaccinal destiné aux pays atteints par ces infections. Une première partie de ce travail a consisté en une enquête sérologique en Tunisie pour évaluer les prévalences PPR et FVR. L'enquête menée a montré une séroprévalence PPR de 7,6% et l'absence de FVR. Le risque lié à une infection par le virus de la fièvre de la vallée du Rift n'est pas nul en raison de l'identification des v

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Costa, Gleise Aparecida Moraes. "Comportamento da meningite bacteriana neonatal de acordo com o peso de nascimento." Universidade de São Paulo, 2006. http://www.teses.usp.br/teses/disponiveis/5/5141/tde-06022007-095913/.

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A meningite bacteriana no período neonatal é uma doença grave, associada à mortalidade elevada e seqüelas em cerca de 12 a 29% dos sobreviventes. Nos recém-nascidos com peso ao nascimento < 2500 g, o risco de adquirir meningite é três vezes superior àqueles com peso >= 2500 g e, entre neonatos de muito baixo peso (< 1500 g), o risco é 17 vezes maior. Objetivo: Geral: descrever o quadro clínico e as complicações da meningite bacteriana em dois grupos de recém-nascidos, considerados de acordo com o peso de nascimento (= 2500 g). Específico: descrever e comparar os agentes etiológicos, a freqüênc

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GUARONA, GIULIA. ""Valutazione della profilassi con Letermovir nei pazienti CMV positivi sottoposti a trapianto di midollo allogenico"." Doctoral thesis, Università degli studi di Genova, 2020. http://hdl.handle.net/11567/1004086.

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Cytomegalovirus (CMV) is the most common viral infection in allogeneic hematopoietic stem cell transplantation. Developments in molecular diagnostic supported the spread of the pre-emptive therapy (PET), and quantitative Real Time-PCR assays has shown the potential of viral load measurement as a predictor of the infection development in CMV post-transplant management. Most patients require the pre-emptive therapy within the first six months after HSCT, with a significant morbidity and mortality. The most widely used antivirals for PET are ganciclovir and valganciclovir (oral prodrug of gancicl

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Piriou-Guzylack, Laurence. "Contribution à l'étude des réponses immunitaires cellulaires du porc, par de nouveaux outils méthologiques, dans un modèle d'infection par le virus de la peste porcine classique." Rennes 1, 2002. http://www.theses.fr/2002REN10028.

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