Academic literature on the topic 'Vector / intermediate host'

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Journal articles on the topic "Vector / intermediate host"

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Choi, Vivian W., Douglas M. McCarty, and R. Jude Samulski. "Host Cell DNA Repair Pathways in Adeno-Associated Viral Genome Processing." Journal of Virology 80, no. 21 (2006): 10346–56. http://dx.doi.org/10.1128/jvi.00841-06.

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ABSTRACT Recentstudies have shown that wild-type and recombinant adeno-associated virus (AAV and rAAV) genomes persist in human tissue predominantly as double-stranded (ds) circular episomes derived from input linear single-stranded virion DNA. Using self-complementary recombinant AAV (scAAV) vectors, we generated intermediates that directly transition to ds circular episomes. The scAAV genome ends are palindromic hairpin-structured terminal repeats, resembling a double-stranded break repair intermediate. Utilizing this substrate, we found cellular DNA recombination and repair factors to be es
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Watkins, Raychel, Suzanne Moshier, and Aelita Pinter. "Parasites of Small Mammals in Grand Teton National Park: Babesia and Hepatozoon." UW National Parks Service Research Station Annual Reports 20 (January 1, 1996): 95–99. http://dx.doi.org/10.13001/uwnpsrc.1996.3295.

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Babesia microti, a parasitic protozoan, is endemic in the Microtus montanus of Grand Teton National Park. It is transmitted by the tick Ixodes eastoni and reproduces in the erythrocytes of its vole host. A second protozoan parasite, Hepatozoon sp., which is widespread in small mammals in Europe, is also found in reptiles throughout the world. The record of Hepatozoon in North American small mammals is not extensive. Hepatozoon, unlike Babesia, may be a two-host or a three-host parasite. Also unlike Babesia, for which the intermediate host is always a tick, the intermediate host of Hepatozoon m
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Lafferty, Kevin D., and Armand M. Kuris. "How environmental stress affects the impacts of parasites." Limnology and Oceanography 44, no. 3part2 (1999): 925–31. https://doi.org/10.5281/zenodo.13512585.

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(Uploaded by Plazi for the Bat Literature Project) Parasites occur in nearly every population. They often interact in complex ways with other stressors. In some cases, the interaction may lead to a disproportionately negative effect on the host population. In other cases, the stressor may ameliorate the effects of parasitism. Here we illustrate intersections of four types of environmental stressors with infectious diseases. First, pollutants may increase parasitism by increasing host susceptibility or by increasing the abundance of intermediate hosts and vectors. Pollutants can also decrease p
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Lafferty, Kevin D., and Armand M. Kuris. "How environmental stress affects the impacts of parasites." Limnology and Oceanography 44, no. 3part2 (1999): 925–31. https://doi.org/10.5281/zenodo.13512585.

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(Uploaded by Plazi for the Bat Literature Project) Parasites occur in nearly every population. They often interact in complex ways with other stressors. In some cases, the interaction may lead to a disproportionately negative effect on the host population. In other cases, the stressor may ameliorate the effects of parasitism. Here we illustrate intersections of four types of environmental stressors with infectious diseases. First, pollutants may increase parasitism by increasing host susceptibility or by increasing the abundance of intermediate hosts and vectors. Pollutants can also decrease p
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Lafferty, Kevin D., and Armand M. Kuris. "How environmental stress affects the impacts of parasites." Limnology and Oceanography 44, no. 3part2 (1999): 925–31. https://doi.org/10.5281/zenodo.13512585.

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(Uploaded by Plazi for the Bat Literature Project) Parasites occur in nearly every population. They often interact in complex ways with other stressors. In some cases, the interaction may lead to a disproportionately negative effect on the host population. In other cases, the stressor may ameliorate the effects of parasitism. Here we illustrate intersections of four types of environmental stressors with infectious diseases. First, pollutants may increase parasitism by increasing host susceptibility or by increasing the abundance of intermediate hosts and vectors. Pollutants can also decrease p
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Lafferty, Kevin D., and Armand M. Kuris. "How environmental stress affects the impacts of parasites." Limnology and Oceanography 44, no. 3part2 (1999): 925–31. https://doi.org/10.5281/zenodo.13512585.

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(Uploaded by Plazi for the Bat Literature Project) Parasites occur in nearly every population. They often interact in complex ways with other stressors. In some cases, the interaction may lead to a disproportionately negative effect on the host population. In other cases, the stressor may ameliorate the effects of parasitism. Here we illustrate intersections of four types of environmental stressors with infectious diseases. First, pollutants may increase parasitism by increasing host susceptibility or by increasing the abundance of intermediate hosts and vectors. Pollutants can also decrease p
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Moshier, Suzanne, Raychel Watkins, and Aelita Pinter. "Parasites of Small Mammals in Grand Teton National Park: Babesia and Hepatozoon." UW National Parks Service Research Station Annual Reports 19 (January 1, 1995): 67–72. http://dx.doi.org/10.13001/uwnpsrc.1995.3249.

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The role of parasitism, whether macro- or microparasites, and whether endo- or ectoparasites, in the demographic machinery of microtines is poorly understood. In a review of the parasites of Microtus, Timm (1985) lists no protozoan endoparasites whatsoever for this genus and observes that one of the most challenging and fruitful directions of future research with Microtus will be the statistical quantification of the cost of parasitism. Babesia microti, a parasitic protozoan, is transmitted by a tick vector and reproduces in the erythrocytes of its mammalian host. Initially, Babesia was though
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Burattini, Marcelo N., Francisco A. B. Coutinho, Luis F. Lopez, and Eduardo Massad. "Modelling the Dynamics of Leishmaniasis Considering Human, Animal Host and Vector Populations." Journal of Biological Systems 06, no. 04 (1998): 337–56. http://dx.doi.org/10.1142/s0218339098000224.

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Some of the vector-borne infections with public health importance involve an animal reservoir. This work describes, through a compartimental model, the dynamics of leishmaniasis considering the interactions between the three populations involved, namely the sandfly, the domestic dog (as the principal intermediate host), and the human population. An expression for the Basic Reproduction Ratio (R0), which takes into account the time delay representing the extrinsic incubation period of the parasite in the vector, is presented. Numerical simulation, equilibrium and stability analysis provided ins
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Svinin, Anton Olegovich, I. V. Bashinskiy, S. N. Litvinchuk, et al. "A Mollusk Planorbarius corneus is an Intermediate Host of the Infectious Agent of Rostand’s «Anomaly P» in Green Frogs." Russian Journal of Herpetology 26, no. 6 (2019): 349–53. http://dx.doi.org/10.30906/1026-2296-2019-26-6-349-353.

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Here we present the first new data about the mysterious «anomaly P» of green frogs (genus Pelophylax) in about 50 years. We established that the gastropod Planorbarius corneus could be an intermediate host (or vector) of the infectious agent of the anomaly P. Symmetrical cases of polydactyly, the anomaly «cross» and heavy cases of the anomaly P, which were previously found in natural populations in the European part of Russia and recently obtained in laboratory, can be caused by this infectious agent. As the most probable cause, we assume a species of trematodes, for which the first intermedia
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Stone, Chris M., Samantha R. Schwab, Dina M. Fonseca, and Nina H. Fefferman. "Human movement, cooperation and the effectiveness of coordinated vector control strategies." Journal of The Royal Society Interface 14, no. 133 (2017): 20170336. http://dx.doi.org/10.1098/rsif.2017.0336.

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Vector-borne disease transmission is often typified by highly focal transmission and influenced by movement of hosts and vectors across different scales. The ecological and environmental conditions (including those created by humans through vector control programmes) that result in metapopulation dynamics remain poorly understood. The development of control strategies that would most effectively limit outbreaks given such dynamics is particularly urgent given the recent epidemics of dengue, chikungunya and Zika viruses. We developed a stochastic, spatial model of vector-borne disease transmiss
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Dissertations / Theses on the topic "Vector / intermediate host"

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Jaquet, Mathilde. "Le microbiote des hôtes intermédiaires escargots et des moustiques vecteurs de zoonoses sous contraintes génétiques et environnementales : une approche de la capacité vectorielle." Electronic Thesis or Diss., Perpignan, 2024. http://www.theses.fr/2024PERP0032.

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Face à la forte augmentation des émergence et ré-émergences de maladies infectieuses au niveau mondial, il est crucial de comprendre les facteurs impliqués dans ces événements. Parmi ceux-ci, la ressource alimentaire et le microbiote apparaissent centraux dans le triptyque composé de l’hôte, des pathogènes qu’il transmet et de l’environnement. Ainsi, les travaux présentés dans cette thèse ont eu pour objectif d’identifier les liens entre facteurs environnementaux biotiques et abiotiques, microbiote et compétence vectorielle chez des mollusques et des arthropodes vecteurs de zoonoses. Ces reche
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Luviano, Aparicio Nelia. "The DNA methylation of the snail Biomphalaria glabrata, role and impact on the generation of phenotypic plasticity A simple Dot Blot Assay for population scale screening of DNA methylation The methylome of Biomphalaria glabrata and other mollusks: enduring modification of epigenetic landscape and phenotypic traits by new DNA methylation inhibitors An approach to study the relative contributions of epigenetics and genetics to phenotypic plasticity in the mollusk Biomphalaria glabrata, vector of the human parasite Schistosoma mansoni Hit-and-run epigenetic editing in the invertebrate parasite intermediate host snail Biomphalaria glabrata." Thesis, Perpignan, 2021. http://www.theses.fr/2021PERP0004.

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La compréhension des mécanismes moléculaires qui permettent l'adaptation rapide des mollusques vecteurs de parasites à de nouveaux environnements est importante pour le contrôle des maladies. L'adaptation rapide est difficile à expliquer par la génétique mendélienne traditionnelle et il existe des preuves solides qui soutiennent que les mécanismes épigénétiques sont à l'origine des adaptations rapides chez plusieurs espèces. Je me suis focalisée sur une marque épigénétique appelée la méthylation de l’ADN, qui est modulée par l'environnement et joue un rôle dans la plasticité phénotypique chez
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Book chapters on the topic "Vector / intermediate host"

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Saijuntha, Weerachai, Ross H. Andrews, Paiboon Sithithaworn, and Trevor N. Petney. "Biodiversity of Human Trematodes and Their Intermediate Hosts in Southeast Asia." In Biodiversity of Southeast Asian Parasites and Vectors causing Human Disease. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-71161-0_4.

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Anderson, Roy M., and Robert M. May. "Indirectly transmitted microparasites." In Infectious Diseases of Humans. Oxford University PressOxford, 1991. http://dx.doi.org/10.1093/oso/9780198545996.003.0014.

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Abstract Many important microparasitic infections of humans are indirectly transmitted from person to person by biting arthropods such as mosquitoes. A list of the major infections is presented in Table 14.1. An idea of their global significance is provided by the observation that the protozoan malarial infections on the continent of Africa alone are estimated to cause in excess of one million child deaths annually (Walsh and Warren 1979). The term ‘vector transmitted’ is often used to describe these infections but it should be noted that the vector is invariably a true intermediate host, in t
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Kumar, Ankur, Priyanka Singh, Ganesh Kumar Verma, et al. "Pondering Plasmodium: Revealing the Parasites Driving Human Malaria and Their Core Biology in Context of Antimalarial Medications." In Plasmodium Species - Life Cycle, Drug Resistance and Autophagy [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.115132.

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Malaria is one of the most severe infectious diseases, imposing significant clinical and financial burdens, particularly in underdeveloped regions, and hindering socioeconomic development. The disease is caused by unicellular protozoan parasites of the genus Plasmodium, which infect not only humans but also various animals, including birds, mammals, and reptiles. Among over 200 recognized Plasmodium species, five—P. falciparum, P. vivax, P. malariae, P. ovale, and P. knowlesi—pose serious risks to human health. The first four are specific to humans, while P. knowlesi, primarily found in macaqu
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Tonev, Anton. "Perspective Chapter: The Parasitic Component." In Bacterial, Viral and Fungal Coinfections [Working Title]. IntechOpen, 2024. http://dx.doi.org/10.5772/intechopen.114391.

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There is no tissue or organ in the body of plants, animals and man in which some parasitic species have not adapted to live. Blood, brain, liver and striated and cardiac muscles, which we are used to in classical microbiology to perceive, a priori, as sterile organs, are in fact often the home of some parasitic species. This ecological idyll often terrifies clinicians and owners, especially when it comes to parasitic species utilizing humans as final, intermediate or potential hosts. The parasites are well adapted to pass the barriers that the body puts in front of other microorganisms, thus c
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Tinsley, F. C. "Parasites of Xenopus." In The Biology of Xenopus. Oxford University PressOxford, 1996. http://dx.doi.org/10.1093/oso/9780198549741.003.0013.

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Abstract The Xenopus species carry a richer assemblage of parasites than most other anurans, with over 25 genera from seven invertebrate groups. This spectrum reflects a dual origin: some of the parasites are characteristic of anurans and represent ‘heirlooms’ from a common ancestry of parasites which have evolved with the anuran lineages. In addition, a component of the fauna is related to parasites which typically infect fishes: these represent ecological acquisitions and reflect the overlap, in terms of diet, habitats etc., between Xenopus and fish. For both these subsets of parasites, the
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Anderson, Roy M., and Robert M. May. "Biology of host-microparasite associations." In Infectious Diseases of Humans. Oxford University PressOxford, 1991. http://dx.doi.org/10.1093/oso/9780198545996.003.0003.

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Abstract Our operational definition of a microparasite encompasses a wide variety of different organisms ranging from simple viruses to ontogenetically complex organisms such as the malarial parasites. Their life cycles may be simple with transmission from person to person being direct, through contact with infective stages that are free-living in the environment, or through intimate contact between hosts such that no free-living phase occurs (e.g. the sexually transmitted infections), or through vectors or intermediate hosts within which parasite development or reproduction may or may not occ
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Nizetic, Dean, and Hans Lehrach. "Chromosome-specific gridded cosmid libraries: construction, handling, and use in parallel and integrated mapping." In DNA Cloning 3. Oxford University PressOxford, 1995. http://dx.doi.org/10.1093/oso/9780199634835.003.0002.

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Abstract The analysis of the information in human genomic DNA is based on the cloning and molecular characterization of the genes together with the genetic analysis of the phenotypes a-;sociated with the genetic loci under study. Libraries of cloned genomic DNA serve as essential intermediates to relate the information from the genetic analysis of phenotypic variation to the molecular analysis of the genes (I). Such libraries, can be either constructed in a yeast or bacterial vector-host system. The yeast system. using yeast artificial chromosomes (YACs) (2) as vectors, is well suited for rapi
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Choudhari, Ranjana Hanumant. "Multidimensional Impact of Climate Change on Human Reproduction and Fertility." In Research Anthology on Environmental and Societal Impacts of Climate Change. IGI Global, 2022. http://dx.doi.org/10.4018/978-1-6684-3686-8.ch083.

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Research has identified a multidimensional, interactive relationship between climate change variables and an adverse (mostly) impact on the mammalian reproductive systems, reproductive organs, and fertility in animals, but direct evidence establishing the impact of climate change on reproductive health and fertility in humans is limited. Climate change has established direct or indirect linkages with re-emergence, geospatial redistribution of pathogens of likely reproductive health significance in humans. Similarly, alterations in growth, mortality rate, reproduction, and spatiotemporal distri
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Choudhari, Ranjana Hanumant. "Multidimensional Impact of Climate Change on Human Reproduction and Fertility." In Climate Change and Its Impact on Fertility. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4480-8.ch014.

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Research has identified a multidimensional, interactive relationship between climate change variables and an adverse (mostly) impact on the mammalian reproductive systems, reproductive organs, and fertility in animals, but direct evidence establishing the impact of climate change on reproductive health and fertility in humans is limited. Climate change has established direct or indirect linkages with re-emergence, geospatial redistribution of pathogens of likely reproductive health significance in humans. Similarly, alterations in growth, mortality rate, reproduction, and spatiotemporal distri
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Choudhari, Ranjana Hanumant. "Multidimensional Impact of Climate Change on Human Reproduction and Fertility." In Climate Change and Its Impact on Fertility. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4480-8.ch014.

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Research has identified a multidimensional, interactive relationship between climate change variables and an adverse (mostly) impact on the mammalian reproductive systems, reproductive organs, and fertility in animals, but direct evidence establishing the impact of climate change on reproductive health and fertility in humans is limited. Climate change has established direct or indirect linkages with re-emergence, geospatial redistribution of pathogens of likely reproductive health significance in humans. Similarly, alterations in growth, mortality rate, reproduction, and spatiotemporal distri
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Conference papers on the topic "Vector / intermediate host"

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Fedorova, V. S., V. A. Burlak, and G. N. Artemov. "SPECIES COMPOSITION OF NEMATODES ON MALARIA MOSQUITOES OF THE TOMSK REGION." In V International Scientific Conference CONCEPTUAL AND APPLIED ASPECTS OF INVERTEBRATE SCIENTIFIC RESEARCH AND BIOLOGICAL EDUCATION. Tomsk State University Press, 2020. http://dx.doi.org/10.17223/978-5-94621-931-0-2020-81.

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The species composition of nematodes and their vectors were analyzed in the Tomsk region. It has been shown that all three species of malaria mosquitoes, Anopheles messeae s.s., An. daciae and An. beklemishevi, can transmit Dirofilaria repens in 89% of confirmed cases. The species-specific infection of the intermediate host with dirofilarias depends on the geographical location.
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Lisovskaya, T. M., and N. S. Malysheva. "IMPACT OF CLIMATIC CHANGES ON THE SPREAD OF DIROFILARIASIS IN THE KURSK REGION." In THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL. VNIIP – FSC VIEV, 2024. http://dx.doi.org/10.31016/978-5-6050437-8-2.2024.25.236-240.

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The article considers an impact of climatic changes and an average temperature increase of the Earth's surface on dirofilariasis spread in the Kursk Region. Climatic changes are irreversible and an urgent problem for the modern world. In this regard, vector-borne diseases specific for a certain climatic zone are increasingly found in areas where the manifestation of such diseases is not typical. Dirofilariasis is a transmissible infection caused by nematodes of the genus Dirofilaria. Intermediate hosts of nematodes Dirofilaria repens and D. immitis are Culicidae mosquitoes. Due to an increase
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Movsesyan, S. O., R. A. Petrosyan, M. A. Nikogosyan, et al. "BIODIVERSITY OF THE PARASITE FAUNA IN THE NORTHERN REGIONS OF ARMENIA AND THE LAKE SEVAN BASIN." In THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL. All-Russian Scientific Research Institute for Fundamental and Applied Parasitology of Animals and Plant – a branch of the Federal State Budget Scientific Institution “Federal Scientific Centre VIEV”, 2023. http://dx.doi.org/10.31016/978-5-6048555-6-0.2023.24.306-311.

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The variety of parasite species, infection of domesticated animals (including cattle,
 sheep, goats, rabbits, poultry, dogs and pigs), natural infection of biohelminths'
 intermediate hosts (including terrestrial and freshwater mollusks, soil oribatid mites)
 with helminth larvae, and the species composition of tick vectors of blood protozoan
 diseases have been studied. The studies found the infection of the above animals with
 the following helminth species: 4 trematode species Fasciola hepatica, F. gigantica,
 Dicrocoelium lanceatum, Paramphistomum sp., 13 nema
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Reports on the topic "Vector / intermediate host"

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Tzfira, Tzvi, Michael Elbaum, and Sharon Wolf. DNA transfer by Agrobacterium: a cooperative interaction of ssDNA, virulence proteins, and plant host factors. United States Department of Agriculture, 2005. http://dx.doi.org/10.32747/2005.7695881.bard.

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Agrobacteriumtumefaciensmediates genetic transformation of plants. The possibility of exchanging the natural genes for other DNA has led to Agrobacterium’s emergence as the primary vector for genetic modification of plants. The similarity among eukaryotic mechanisms of nuclear import also suggests use of its active elements as media for non-viral genetic therapy in animals. These considerations motivate the present study of the process that carries DNA of bacterial origin into the host nucleus. The infective pathway of Agrobacterium involves excision of a single-stranded DNA molecule (T-strand
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