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Dissertations / Theses on the topic 'Live parasites'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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1

Birkett, Sally Jo. "Effects of gamma-irradation on leishmania Mexicana parasites and their use as a live vaccine." Thesis, University of Liverpool, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.526842.

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2

Renhe, Daniela Chaves. "Malária grave murina: análise histopatológica e imunológica em tecido cerebral e pulmonar de camundongos C57BL/ imunizados com parasitos vivos de fase sanguínea de Plasmodium berghei (Cepas ANKA e NK65) e desafiados com Plasmodium berghei ANKA." Universidade Federal de Juiz de Fora (UFJF), 2015. https://repositorio.ufjf.br/jspui/handle/ufjf/3678.

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Davis, Richard Elliot. "Neutrophil responses to infection with leishmania parasites: MHC class II-expression and parasite life-stage interactions." Diss., University of Iowa, 2016. https://ir.uiowa.edu/etd/2200.

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The vector-borne protozoan Leishmania spp. cause the spectrum of disease known as leishmaniasis in human and animal hosts. The most common manifestations of leishmaniasis are the chronic, ulcerative skin disease cutaneous leishmaniasis (CL), and the more serious visceral leishmaniasis (VL) in which parasites take up residence in internal organs, causing death if not treated. The role of neutrophils (PMNs) in the immune response to CL and VL is unclear. It is s generally thought that PMNs are only a short-lived effector cell, and have been disregarded as playing a role in chronic Leishmania spp
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4

Hillegass, Melissa Ann. "SEX-BIASED PARASITISM AND THE REPRODUCTIVE COSTS OF PARASITES IN A SOCIAL AFRICAN GROUND SQUIRREL." Master's thesis, University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2205.

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Vertebrate males frequently carry higher numbers of parasites than females. This bias in parasite loads could be a consequence of sexual selection. Grouping species are also assumed to be afflicted with larger numbers of parasites than solitary animals and associated costs of this parasitism could vary with group size or structure. I examined sex-biased parasitism and the influence of group size on parasite loads in Cape ground squirrels (Xerus inauris), a highly social species that occurs in the arid regions of southern Africa. Males carried three times as many ectoparasites as females, but f
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5

Lagrue, Clement, and n/a. "Alternative life-history strategies in the trematode Coitocaecum parvum (Opecoelidae) : effects of environmental factors and within-host competition." University of Otago. Department of Zoology, 2008. http://adt.otago.ac.nz./public/adt-NZDU20080905.111744.

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From simple beginnings, when only one host was required, numerous parasitic organisms have evolved complex life-cycles involving two or more host species. For example, trematode parasites reproduce in vertebrates, their definitive host, but their current life cycle also typically involves two intermediate hosts that were added during the course of evolution. Vertebrates are often considered to be the ancestral hosts of trematodes although other scenarios exist. While multi-host life cycles are observed in distantly related groups of parasites, their evolution remains largely unexplored. In t
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6

Kulma, Katarzyna. "Avian malaria, life-history trade-offs and interspecific competition in Ficedula flycatchers." Doctoral thesis, Uppsala universitet, Zooekologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-204349.

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This thesis investigates the impact of avian malaria (Haemosporidia) parasites on the outcome of interspecific competition between two closely related bird species, pied (Ficedula hypoleuca) and collared (F. albicollis) flycatchers. I further investigated how variation in timing of breeding, life history strategies and immune competence genes (MHC genes) modulate the fitness effects of malaria parasites in one of the two species i.e. collared flycatchers. Collared flycatchers colonized the Baltic island Öland in the late 1950-ties and has since then been expanding their breeding range while co
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7

Quigley, Benjamin J. Z. "The social lives of hosts and parasites." Thesis, University of Oxford, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.639732.

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All organisms are to some degree parasitised and display some form of social behaviour. Host and parasite social interactions are incredibly diverse and occur in all natural populations, therefore understanding such fundamental interactions is of profound importance - particularly from a public health perspective. The work in this thesis is developed in the context of bacteria and virus interactions, using the bacterium Pseudomonas fiourescens and bacteriophage SBW2502 for experiments. Mathematical models are developed in close conjunction with empirical data, with the aim of maintaining a hig
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8

Fleischmann, Tobias. "Deletion plastidärer ribosomaler Proteine in Nicotiana tabacum im Kontext reduktiver Genomevolutionund Entwicklung einer Hochdurchsatzplattform zur Analysevon miRNAs in Chlamydomonas reinhardtii." Phd thesis, Universität Potsdam, 2012. http://opus.kobv.de/ubp/volltexte/2012/6039/.

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Im Rahmen des ersten Teils der vorliegenden Doktorarbeit konnten zwei nicht-essentielle (rps15, rpl36) und fünf essentielle (rps3, rps16, rpl22, rpl23, rpl32) im Plastom von Nicotiana tabacum kodierte Proteine des plastidären Ribosoms bezüglich ihrer Essentialität charakterisiert werden. Diese Gene wurden durch gezielte Knockout-Experimente inaktiviert und die resultierenden Effekte untersucht. Die Ergebnisse lassen einen Rückschluss auf die Lokalisation der Gene der insgesamt sieben untersuchten ribosomalen Proteine zu, die im Plastom mehrerer parasitischer, Plastiden-besitzender Spezies nic
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9

Brooker, Adam Jonathan. "Aspects of the biology and behaviour of Lernaeocera branchialis (Linnaeus, 1767) (Copepoda: Pennellidae)." Thesis, University of Stirling, 2007. http://hdl.handle.net/1893/343.

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Lernaeocera branchialis (L., 1767) is a parasitic copepod that parasitises a range of gadoids by anchoring in the proximity of the branchial chamber of its host, deriving nutrition from the blood of its host and causing serious pathogenic effects. This study investigates the taxonomy of the juvenile free-swimming stages and host location behaviour in the pre-metamorphosed adult female. The large size and distinctive appearance of the metamorphosed adult female stage, coupled with the wide exploitation and commercial importance of one of its principle final gadoid hosts, the cod (Gadus morhua L
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10

Prowse, Rhoda 1975. "The molecular basis for the resistance of Fasciola hepatica to cellular cytotoxicity." Monash University, Dept. of Biochemistry and Molecular Biology, 2003. http://arrow.monash.edu.au/hdl/1959.1/7714.

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11

Steinfelder, Svenja. "Immune modulation by parasites." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2007. http://dx.doi.org/10.18452/15682.

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Die Infektion mit Schistosoma mansoni resultiert in einer Th2-Immunantwort mit Eosinophilie und erhöhtem IgE-Titer, wobei der wasserlösliche Extrakt der S. mansoni Eier (SEA) ausreicht um diese Reaktion auszulösen. In der vorliegenden Arbeit konnte demonstriert werden, dass sich IL-4-produzierende CD4+ T-Lymphozyten in Zellkulturen mit SEA-konditionierten Dendritischen Zellen (DCs) trotz gleichzeitig vorkommenden IFN-gamma entwickeln und SEA die Expression von Faktoren in DCs, die üblicherweise mit einer Th1-Antwort einhergehen, auf Transkriptions- und Proteinebene selektiv hemmt. Um den Fakto
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12

Sivars, Becker Lena. "Food and Parasites – Life-history Decisions in Copepods." Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2004. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-4268.

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13

Wright, M. Elizabeth. "Life history ecology of the cestode Diphyllobothrium dendriticum in copepod and fish hosts." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=36854.

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Arctic charr are susceptible to cestodes like Diphyllobothrium dendriticum which are transmitted through the food web. Field studies investigating Arctic charr-Diphyllobothrium relationships often provide little data from which to fully understand Diphyllobothrium transmission or to assess their impact on copepod or fish hosts. Experimental studies may, therefore, be the only direct way to investigate these issues. The research goal of this thesis was to duplicate the D. dendriticum life cycle in the laboratory to investigate parasite development and host specificity, and to apply the experime
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14

Kallert, Dennis Marc. "Life cycle studies and transmission mechanisms of myxozoan parasites." [S.l.] : [s.n.], 2006. http://deposit.ddb.de/cgi-bin/dokserv?idn=979214831.

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15

Hayward, Adam David. "Parasites and life history variation in a wild mammal." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5675.

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The purpose of this thesis is to investigate associations between parasite infection and host life-history variation in the wild Soay sheep population of the islands of St Kilda, NW Scotland. Studying host-parasite interactions in wild animal populations is of interest because of the importance of heterogeneity in resource availability, genetics, and environmental conditions in determining resistance to parasites, with implications for human populations and wildlife conservation and management. However, very few studies are able to investigate these associations in a longitudinal manner, which
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16

Tildesley, Andrew Saul. "Investigations into Ergasilus sieboldi (Nordmann 1832) (Copepoda: Poecilostomatoida), in a large reservoir rainbow trout fishery in the UK." Thesis, University of Stirling, 2008. http://hdl.handle.net/1893/1261.

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Ergasilus sieboldi has been reported from a number of trout fisheries in England and Wales. The population dynamics of this parasitic copepod in Rutland Water, a large reservoir in Central England was studied from 2003 to 2005. A combination of angler and net caught fish were examined to record numbers of adult females and egg production throughout each year. The parasite overwintered in large numbers on trout and commenced egg production in April which then continued until October/November. The prevalence of infection and the abundance of the parasite were very high in overwintered rainbow tr
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17

Silva, Mafalda Lopes da. "Dissecting the molecular interaction between hepatocytes and Plasmodium liver parasites." Doctoral thesis, Universidade Nova de Lisboa. Instituto de Tecnologia Química e Biológica, 2011. http://hdl.handle.net/10362/8572.

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Dissertation presented to obtain the Ph.D degree in Biology<br>Malaria is one of the world´s leading causes of death, responsible for over 700,000 deaths per year, the majority of which are African children under 5 years of age. Malaria disease is caused by the transmission of an Apicomplexa parasite, Plasmodium, through the bit of a female Anopheles mosquito, and transmitted parasites quickly reach the mammalian host liver, where the first round of replication begins. Plasmodium sporozoites, once inside the liver, must invade and survive within hepatocytes until the first replicative s
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18

S?O, SABAS Cl?udia da Silveira de. "An?lise comparativa das comunidades parasit?rias de quatro esp?cies de Siluriformes (Pisces) do Alto Rio S?o Francisco, Minas Gerais, Brasil." Universidade Federal Rural do Rio de Janeiro, 2014. https://tede.ufrrj.br/jspui/handle/jspui/2275.

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Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2018-05-04T20:03:01Z No. of bitstreams: 1 2014 - Cl?udia da Silveira de S?o Sabas.pdf: 2854723 bytes, checksum: 72c0b891175db64f709341d091e509e2 (MD5)<br>Made available in DSpace on 2018-05-04T20:03:01Z (GMT). No. of bitstreams: 1 2014 - Cl?udia da Silveira de S?o Sabas.pdf: 2854723 bytes, checksum: 72c0b891175db64f709341d091e509e2 (MD5) Previous issue date: 2014-02-28<br>CAPES<br>CNPq<br>Specimens of Conorhynchos conirostris (Valenciennes, 1840), Duopalatinus emarginatus (Valenciennes, 1840), Pimelodus pohli Ribeiro & Lucena, 2006 and
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19

Lanusse, Carlos Edmundo. "Pharmacokinetics of propylthio-benzimidazole anthelmintics : modulation of liver biotransformation in sheep and cattle." Thesis, McGill University, 1991. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=70364.

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The aim of this research was to determine the influence of route of administration, drug formulation and modified-liver metabolism on the pharmacokinetic and metabolic patterns of benzimidazole anthelmintics in ruminants. Both route of administration and formulation dramatically affected the bioconversion of netobimin (NTB) pro-drug, N-methoxycarbonyl-N$ sp prime$-(2-nitro-5-propylphenylthio)-${ rm N} sp{ prime prime}$-(2-ethyl sulphonic acid) guanidine, and the bioavailability and disposition kinetics of its active albendazole (ABZ) metabolites in both sheep and cattle. The efficacy of NTB co
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20

Pollitt, Laura C. "Evolutionary ecology of transmission strategies in protozoan parasites." Thesis, University of Edinburgh, 2011. http://hdl.handle.net/1842/5771.

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In recent years there has been growing interest in applying frameworks from evolutionary ecology to understand infectious disease. It is becoming increasingly apparent that the interactions between parasites within the host environment can shape parasite phenotypes underlying infection dynamics and transmission. However, the spread of the disease will crucially depend on both within-host and between-host dynamics. Bridging these scales is challenging and for vector borne parasites, such as malaria and trypanosomes, will involve gaining a much better understanding of infection dynamics both wit
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21

Salman, Ahmed Mahmoud Ahmed A. "Assessment of novel liver-stage vaccines using transgenic rodent malaria parasites." Thesis, University of Oxford, 2014. http://ora.ox.ac.uk/objects/uuid:8c0e9338-3f33-4c83-b673-c17906ca1e38.

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22

Walther, Bruno Andreas. "Comparative studies of ectoparasite communities of birds." Thesis, University of Oxford, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.364001.

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23

Truman, Julie. "Experimental evolution of parasite life history in bacteriophage Φ2". Thesis, University of Liverpool, 2014. http://livrepository.liverpool.ac.uk/2007429/.

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Parasite life history theory predicts that lifetime reproductive success evolves through differential allocation of energy to life history traits constrained by trade-offs. These life history traits govern the characteristics of parasites such as their virulence, transmission and infection phenotypes, so understanding their evolution is a key concern for infectious disease prediction and management. This thesis uses the powerful tool of experimental evolution to gain a fuller understanding of the factors and constraints involved in parasite life history evolution, using bacteriophage Φ2 as a m
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24

BASTOS, Amanda Queiroz. "Biologia e caracteriza??o morfol?gica de Ornithocoris pallidus (Usinger, 1959) (Heteroptera: Cimicidae: Haematosiphoninae)." Universidade Federal Rural do Rio de Janeiro, 2016. https://tede.ufrrj.br/jspui/handle/jspui/1832.

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Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2017-06-26T18:01:00Z No. of bitstreams: 1 2016 - Amanda Queiroz Bastos.pdf: 48844488 bytes, checksum: 6e0a52196df0fdb905334cfc1fd20d5d (MD5)<br>Made available in DSpace on 2017-06-26T18:01:00Z (GMT). No. of bitstreams: 1 2016 - Amanda Queiroz Bastos.pdf: 48844488 bytes, checksum: 6e0a52196df0fdb905334cfc1fd20d5d (MD5) Previous issue date: 2016-09-30<br>The cimicidae are distributed in six subfamilies. Among theses Haematosiphoninae has nine genera and Ornithocoris two species: Ornithocoris toledoi Pinto, 1927, for be commonly associated
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Yildirim, Pinar. "Acquisition Of Liver Specific Parasites-bacteria-drugs-diseases-genes Knowledge From Medline." Phd thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613143/index.pdf.

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Biomedical literature such as MEDLINE articles are rich resources for discovering and tracking disease and drug knowledge. For example, information regarding the drugs that are used with a particular disease or the changes in drug usage over time is valulable. However, this information is buried in thousands of MEDLINE articles. Acquiring knowledge from these articles requires complex processes depending on the biomedical text mining techniques. Today, parasitic and bacterial diseases affect hundreds of millions of people worldwide. They result in significant mortality and devastating social a
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26

Börner, Martina. "The life history of brood parasites : co-evolutionary constraints and competitive begging." Thesis, University of Cambridge, 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.608752.

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27

Birget, Philip Laurent Guillaume. "Evolutionary ecology of parasites : life-history traits, phenotypic plasticity, and reproductive strategies." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/28805.

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Adaptive phenotypic plasticity, the ability of a genotype to give rise to different phenotypes in different environments, evolves to allow organisms to fine-tune their life-history traits according to the varying conditions they encounter during their lives. Reproductive investment - the manner in which organisms divide their resources between survival and reproduction - is well studied in evolutionary ecology because it is a key determinant of fitness. However, whilst plasticity in reproductive effort is well understood for free-living multicellular taxa (such as insects, birds, and mammals),
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28

Axtner, Jan. "Immune gene expression and diversity in relation to gastrointestinal parasite burden in small mammals." Phd thesis, Universität Potsdam, 2012. http://opus.kobv.de/ubp/volltexte/2013/6563/.

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MHC genes encode proteins that are responsible for the recognition of foreign antigens and the triggering of a subsequent, adequate immune response of the organism. Thus they hold a key position in the immune system of vertebrates. It is believed that the extraordinary genetic diversity of MHC genes is shaped by adaptive selectional processes in response to the reoccurring adaptations of parasites and pathogens. A large number of MHC studies were performed in a wide range of wildlife species aiming to understand the role of immune gene diversity in parasite resistance under natural selection c
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Irvine, Robert Justin C. "Contrasting life-history traits and population dynamics in two co-existing gastrointestinal nematodes of Svalbard reindeer." Thesis, University of Stirling, 2001. http://hdl.handle.net/1893/21584.

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By definition, parasites are expected to have fitness consequences for their hosts by reducing survival and fecundity. If such events are density dependent they may play a regulatory role in their host's dynamics. However, there are few studies in the wild that provide empirical evidence to support these suppositions. To understand the impact of parasites it is necessary to explore the interactions between parasite and host and the mechanisms that regulate nematode populations. The aims of this work are to: 1) identify the species specific patterns of infection; 2) investigate the interactions
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Richardson, Shanthini Devi. "Studies on the life-cycle of the digenetic trematode Rhipidocotyle campanula (Dujardin, 1845) (Gasterostomata: bucephalidae) with particular reference to the larval stages." Thesis, University of Leeds, 1990. http://etheses.whiterose.ac.uk/723/.

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The life-cycle of Rhipidocotyle campanula (Dujardin, 1845) has been experimentally demonstrated and the species identity confirmed. Sporocysts were recovered from digestive glands of the freshwater-mussel Anodonta anatina, and in heavily infected 'hosts from the reproductive, system. Both cercariae and glochidia are released simultaneously in mussels where the reproductive system is partly invaded by sporocyst tubules. The development of the cercariae in the sporocyst tubules has been studied briefly fusing histological and histochemical methods. The liberation of cercariae varied- between >10
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Killick, Stuart C. "Long live the Red Queen? : examining environmental influences on host-parasite interactions in Daphnia." Thesis, University of Edinburgh, 2006. http://hdl.handle.net/1842/10995.

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The Red Queen hypothesis proposes that antagonistic coevolution between parasites and their hosts is responsible for the evolutionary maintenance of sexual reproduction. In this thesis I examine various aspects of the Red Queen hypothesis using the Cladoceran crustacean Daphnia. A survey of parasite prevalence in North American populations of Daphnia pulex represents the first attempt to examine the role of parasites in the maintenance of breeding system variation in this species. Despite evidence of over- and underparasitism in some populations, parasite prevalences were generally very low su
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Crick, Alex James. "Live imaging studies of the interactions of the malaria parasite with the human erythrocyte." Thesis, University of Cambridge, 2014. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.708165.

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Whiteman, Noah Kerness. "Evolutionary epidemiology of endemic Galápagos birds and their parasites." Diss., St. Louis, Mo. : University of Missouri--St. Louis, 2005. http://etd.umsl.edu/r1081.

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Edwinson, Adam. "Glycan Triggers of Life Cycle Development in the Apicomplexan Parasite Cryptosporidium." Diss., North Dakota State University, 2017. https://hdl.handle.net/10365/26507.

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Cryptosporidium is an apicomplexan parasite that causes the diarrheal disease cryptosporidiosis, an infection that can become chronic and life threating in immunocompromised and malnourished individuals. Development of novel therapeutic interventions is critical as current treatments are entirely ineffective in treating cryptosporidiosis in populations at the greatest risk for disease. Repeated cycling of host cell invasion and replication by sporozoites results in the rapid amplification of parasite numbers and the pathology associated with the disease. Little is known regarding the factors t
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Southern, Timothy Robert. "Survey of the Helminth Parasites Infecting the Alabama Waterdog Necturus alabamensis." Digital Commons @ East Tennessee State University, 2002. https://dc.etsu.edu/etd/733.

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This study was designed to provide the foundation for future work on the ecology and evolution of Necturus-parasite systems by providing vital parasite survey information for the aquatic salamander Necturus alabamensis. During this study 115 N. alabamensis were collected from north Florida. Hosts yielded the cestode Proteocephalus loennbergi, monogeneans from the genus Sphyranura, digeneans from the genus Gorgoderina, and what appears to be several nematode species. Nematodes, digeneans, and cestodes were abundant while monogeneans were rare. Monogenean and cestode parasites were categoriz
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Gemmill, A. W. "Life history biology of the parasitic nematode Strongyloides ratti." Thesis, University of Edinburgh, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.651386.

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Causes and consequences of plasticity in parasite life histories were investigated using a gastrointestinal nematode species, <I>Strongyloides ratti</I>, a natural parasite of rats. Empirical work focused on three putative instances of adaptive and non-adaptive plasticity in the life history of <I>S. ratti</I>: host-specificity, facultative sexuality, and immune-dependent maturation time. Host-specificity (the differential success of a parasite on alternative host types) represents (non-adaptive) plasticity in fitness and is commonly viewed as an unavoidable outcome of parasite specialisation
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Dyall, Sabrina Devi. "Characterisation of the LmcDNA2 gene family of Leishmania major." Thesis, Imperial College London, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.243853.

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Granroth-Wilding, Hanna Maria Veronica. "Parasitism, family conflict and breeding success." Thesis, University of Edinburgh, 2013. http://hdl.handle.net/1842/8243.

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Parasites are important drivers of ecological and evolutionary processes in their hosts. However, hosts often differ in how they are affected by parasitism, which can be important in how parasite effects on individuals scale up to the population level. Hosts may differ intrinsically in their susceptibility to parasitism, and extrinsic factors may impose constraints on how hosts allocate resources between immunity, maintenance and reproduction, thereby further affecting their ability to cope with infection. These extrinsic factors include the host’s ecological environment, for example food avai
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Long, Thavy. "Caractérisation structurale et régulation de l'activité de deux Polo-like kinases de Schistosoma mansoni : SmPlk1 et SmSak." Lille 2, 2010. http://www.theses.fr/2010LIL2S007.

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La schistosomiase est l'infection helminthique humaine la plus importante en termes de morbidité et de mortalité dans de nombreux pays. L'émergence récente de cas de résistances à la seule drogue efficace contre le schistosome, le praziquantel (PZQ) fait de cette maladie une priorité pour l'Organisation Mondiale de la Santé (OMS) de rechercher de nouvelles cibles thérapeutiques. La ponte massive des oeufs (jusqu'à 300 oeufs par jour par femelle) est responsable de la transmission de la maladie par des parasites complexes trématodes mais aussi de toute la pathologie de la schistosomiase. Mon tr
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Sahin, Annelise. "ADP-Ribosylation Factor Like : étude fonctionnelle chez Leishmania." Bordeaux 2, 2004. http://www.theses.fr/2004BOR21152.

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Les leishmanies sont des parasites transmis par des insectes diptères, responsables de pathologies graves chez l'homme. La protéine G monomérique LdARL-3A (ADP-Ribosylation factor Like) de Leishmania donovani a été identifiée précédemment, et son rôle dans la biogenèse du flagelle, un organelle indispensable à la survie du parasite chez l'insecte, mis en évidence. Nous avons surexprimé des chimères (LdARL-3A/LdARL-3B), ce qui nous a permis d'identifier une région effectrice de LdARL-3A ; par double-hybride chez la levure, nous avons isolé deux partenaires potentiels, la clathrine, l'autre inco
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Jones, Julie Elizabeth. "A series of mathematical models of the life-cycle of the nematode Ostertagia ostertagia." Thesis, University of Exeter, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.328834.

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Brace, Amber Jasmine. "Drivers of Immune Cost and Implications for Host Protection from Parasites." Scholar Commons, 2016. http://scholarcommons.usf.edu/etd/6184.

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Among species, populations, and individuals, there exists a tremendous amount of variation in how hosts respond to, and are thus protected from parasites. Such variation inevitably affects host-parasite dynamics and ultimately how parasites will move through and evolve in communities. A likely factor in the diversity of immune responses seen in nature are the costs associated with activation of the immune system upon exposure to parasites. Costs can manifest in many ways, including changes in resource usage or metabolism, self-damage from inflammatory reactions, lost opportunities (e.g., forag
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43

Hirasawa, Riyo. "Life-cycle of riverine fish nematodes : dynamics and maintenance of parasite population." 京都大学 (Kyoto University), 2003. http://hdl.handle.net/2433/148601.

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Blanchard, Alexandra. "Identification, polymorphisme et évolution moléculaire de gènes du pouvoir pathogène chez le nématode à kyste de la pomme de terre Globodera pallida." Phd thesis, Université Rennes 1, 2006. http://tel.archives-ouvertes.fr/tel-00132028.

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Les nématodes à kyste du genre Globodera sont des vers microscopiques, hétérotrophes qui parasitent les racines des plantes essentiellement de la famille des Solanacées. Ces organismes sont des endoparasites obligatoires qui établissent une relation très étroite avec leur plante hôte. Ils peuvent ainsi se nourrir par le biais d'un site nourricier très élaboré. Celui-ci est mis en place grâce à des protéines sécrétées par le nématode, directement injectées dans les cellules végétales grâce à leur stylet (organe de la partie antérieure assimilable à une aiguille creuse). La fonction des protéine
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45

Morga, Benjamin. "Etude des interactions hôte/parasite chez l'huître plate Ostrea edulis et son parasite Bonamia ostreae." Phd thesis, Université de La Rochelle, 2010. http://tel.archives-ouvertes.fr/tel-00618480.

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L'histoire de l'ostréiculture française met en évidence la fragilité de cette production face à la surexploitation des stocks et l'apparition de maladies. En particulier, la production d'huître plate, Ostrea edulis, a fortement diminué suite à l'apparition de deux maladies parasitaires dont la bonamiose. Les moyens de lutte contre la bonamiose sont relativement restreints. Ils sont essentiellement basés sur la surveillance de la santé des huîtres afin de limiter la dissémination et la propagation de la maladie. Cependant l'utilisation de modèles prédictifs de l'évolution de la maladie en zone
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Welburn, Susan Christina. "The rickettsia-like organisms of Glossina spp." Thesis, University of Bristol, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.240341.

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Van, Heerden Desireé. "The biology of Palexorista laxa (Curran) (Diptera : Tachinidae) : an internal larval parasitoid of Heliothis armigera (Hübner) Lepidoptera : Noctuidae)." Thesis, Rhodes University, 1993. http://hdl.handle.net/10962/d1005332.

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The Tachinid fly, Palexorista laxa (Curran) is an important parasitoid of Heliothis armigera (Hubner) in Africa and India. The biological characteristics of the parasitoid were studied with an emphasis on its host instar preference, host range, seasonality and percentage parasitism. The developmental stages were also studied and described. A high host mortality (48%-100%) due to parasite attack occurred when small larvae were parasitised (2nd & 3rd instars). A preference for the 4th and 5th host instars was shown by the flies. P. laxa was found to be a non-specific parasitoid and parasitised a
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Elsaghier, Ashraf Ahmed Fouad. "Schistosoma mansoni : studies of parasite attrition in naive, immunised and drug-treated mice." Thesis, University College London (University of London), 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.238168.

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Shizuka, Daizaburo. "Parental strategies and family life of American Coots: brood parasitism, sibling rivalry, and life history /." Diss., Digital Dissertations Database. Restricted to UC campuses, 2009. http://uclibs.org/PID/11984.

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Hammerschmidt, Katrin. "Host parasite interactions in a cestode with a complex life cycle, Schistocephalus solidus." [S.l.] : [s.n.], 2005. http://e-diss.uni-kiel.de/diss_1678/d1678.pdf.

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