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Relevant bibliographies by topics / Parasitoids Immunology

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Academic literature on the topic 'Parasitoids Immunology'

Author: Grafiati

Published: 4 June 2021

Last updated: 31 January 2023

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Journal articles on the topic "Parasitoids Immunology"

1

Henry, Lee M., Bernard D. Roitberg, and David R. Gillespie. "Covariance of phenotypically plastic traits induces an adaptive shift in host selection behaviour." Proceedings of the Royal Society B: Biological Sciences 273, no. 1603 (August 15, 2006): 2893–99. http://dx.doi.org/10.1098/rspb.2006.3672.

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Flexibility in adult body size allows generalist parasitoids to use many host species at a cost of producing a range of adult sizes. Consequently, host selection behaviour must also maintain a level of flexibility as adult size is related to capture efficiency. In the present study, we investigated covariance of two plastic traits—size at pupation and host size selection behaviour—using Aphidius ervi reared on either Acyrthosiphon pisum or Aulacorthum solani , generating females of disparate sizes. Natal host was shown to change the ranking of perceived host quality with relation to host size.

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Özbek, Rabia, Krishnendu Mukherjee, Fevzi Uçkan, and Andreas Vilcinskas. "Reprograming of epigenetic mechanisms controlling host insect immunity and development in response to egg-laying by a parasitoid wasp." Proceedings of the Royal Society B: Biological Sciences 287, no. 1928 (June 10, 2020): 20200704. http://dx.doi.org/10.1098/rspb.2020.0704.

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Parasitoids are insects that use other insects as hosts. They sabotage host cellular and humoral defences to promote the survival of their offspring by injecting viruses and venoms along with their eggs. Many pathogens and parasites disrupt host epigenetic mechanisms to overcome immune system defences, and we hypothesized that parasitoids may use the same strategy. We used the ichneumon wasp Pimpla turionellae as a model idiobiont parasitoid to test this hypothesis, with pupae of the greater wax moth Galleria mellonella as the host. We found that parasitoid infestation involves the suppression

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Potter, Kristen A., and H. Arthur Woods. "Trichogramma parasitoids alter the metabolic physiology of Manduca eggs." Proceedings of the Royal Society B: Biological Sciences 279, no. 1742 (June 20, 2012): 3572–76. http://dx.doi.org/10.1098/rspb.2012.1050.

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Egg parasitoids face unique developmental constraints. First, they have exceptionally limited resources to support themselves and their siblings through three life stages. Second, they develop within the physiological system of another species, which they modify to their own ends. We examined how these constraints affect the metabolic physiology of egg parasitism, and whether parasitoids retool their host eggshell to account for their different metabolic demands. Higher-conductance eggshells allow more oxygen to reach the developing parasitoids, but also allow more water to leave the egg. We u

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Staab, Michael, Helge Bruelheide, Walter Durka, Stefan Michalski, Oliver Purschke, Chao-Dong Zhu, and Alexandra-Maria Klein. "Tree phylogenetic diversity promotes host–parasitoid interactions." Proceedings of the Royal Society B: Biological Sciences 283, no. 1834 (July 13, 2016): 20160275. http://dx.doi.org/10.1098/rspb.2016.0275.

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Evidence from grassland experiments suggests that a plant community's phylogenetic diversity (PD) is a strong predictor of ecosystem processes, even stronger than species richness per se . This has, however, never been extended to species-rich forests and host–parasitoid interactions. We used cavity-nesting Hymenoptera and their parasitoids collected in a subtropical forest as a model system to test whether hosts, parasitoids, and their interactions are influenced by tree PD and a comprehensive set of environmental variables, including tree species richness. Parasitism rate and parasitoid abun

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Härri, Simone A., Jochen Krauss, and Christine B. Müller. "Fungal endosymbionts of plants reduce lifespan of an aphid secondary parasitoid and influence host selection." Proceedings of the Royal Society B: Biological Sciences 275, no. 1651 (August 5, 2008): 2627–32. http://dx.doi.org/10.1098/rspb.2008.0594.

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Complex biotic interactions shape ecological communities of plants, herbivores and their natural enemies. In studies of multi-trophic interactions, the presence of small, invisible micro-organisms associated with plants and those of a fourth above-ground trophic level have often been neglected. Incorporating these neglected factors improves our understanding of the processes within a multi-trophic network. Here, we ask whether the presence of a fungal endosymbiont, which alters plant quality by producing herbivore-toxic substances, trickles up the food chain and affects the performance and hos

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Castelo, Marcela K., and José E. Crespo. "Microorganismal Cues Involved in Host-Location in Asilidae Parasitoids." Biology 11, no. 1 (January 13, 2022): 129. http://dx.doi.org/10.3390/biology11010129.

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Parasitoids are organisms that kill their host before completing their development. Typical parasitoids belong to Hymenoptera, whose females search for the hosts. But some atypical Diptera parasitoids also have searching larvae that must orientate toward, encounter, and accept hosts, through cues with different levels of detectability. In this work, the chemical cues involved in the detection of the host by parasitoid larvae of the genus Mallophora are shown with a behavioral approach. Through olfactometry assays, we show that two species of Mallophora orient to different host species and that

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7

Fatouros, N. E., A. Cusumano, F. Bin, A. Polaszek, and J. C. van Lenteren. "How to escape from insect egg parasitoids: a review of potential factors explaining parasitoid absence across the Insecta." Proceedings of the Royal Society B: Biological Sciences 287, no. 1931 (July 22, 2020): 20200344. http://dx.doi.org/10.1098/rspb.2020.0344.

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The egg is the first life stage directly exposed to the environment in oviparous animals, including many vertebrates and most arthropods. Eggs are vulnerable and prone to mortality risks. In arthropods, one of the most common egg mortality factors is attack from parasitoids. Yet, parasitoids that attack the egg stage are absent in more than half of all insect (sub)orders. In this review, we explore possible causes explaining why eggs of some insect taxa are not parasitized. Many insect (sub)orders that are not attacked by egg parasitoids lack herbivorous species, with some notable exceptions.

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8

Girling, Robbie D., Alex Stewart-Jones, Julie Dherbecourt, Joanna T. Staley, Denis J. Wright, and Guy M. Poppy. "Parasitoids select plants more heavily infested with their caterpillar hosts: a new approach to aid interpretation of plant headspace volatiles." Proceedings of the Royal Society B: Biological Sciences 278, no. 1718 (January 26, 2011): 2646–53. http://dx.doi.org/10.1098/rspb.2010.2725.

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Plants produce volatile organic compounds (VOCs) in response to herbivore attack, and these VOCs can be used by parasitoids of the herbivore as host location cues. We investigated the behavioural responses of the parasitoid Cotesia vestalis to VOCs from a plant–herbivore complex consisting of cabbage plants ( Brassica oleracea ) and the parasitoids host caterpillar, Plutella xylostella . A Y-tube olfactometer was used to compare the parasitoids' responses to VOCs produced as a result of different levels of attack by the caterpillar and equivalent levels of mechanical damage. Headspace VOC prod

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McLean, Ailsa H. C., and H. Charles J. Godfray. "Evidence for specificity in symbiont-conferred protection against parasitoids." Proceedings of the Royal Society B: Biological Sciences 282, no. 1811 (July 22, 2015): 20150977. http://dx.doi.org/10.1098/rspb.2015.0977.

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Many insects harbour facultative symbiotic bacteria, some of which have been shown to provide resistance against natural enemies. One of the best-known protective symbionts is Hamiltonella defensa , which in pea aphid ( Acyrthosiphon pisum ) confers resistance against attack by parasitoid wasps in the genus Aphidius (Braconidae). We asked (i) whether this symbiont also confers protection against a phylogenetically distant group of parasitoids (Aphelinidae) and (ii) whether there are consistent differences in the effects of bacteria found in pea aphid biotypes adapted to different host plants.

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Quicke, Donald L. J., and Buntika A. Butcher. "Review of Venoms of Non-Polydnavirus Carrying Ichneumonoid Wasps." Biology 10, no. 1 (January 12, 2021): 50. http://dx.doi.org/10.3390/biology10010050.

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Parasitoids are predominantly insects that develop as larvae on or inside their host, also usually another insect, ultimately killing it after various periods of parasitism when both parasitoid larva and host are alive. The very large wasp superfamily Ichneumonoidea is composed of parasitoids of other insects and comprises a minimum of 100,000 species. The superfamily is dominated by two similarly sized families, Braconidae and Ichneumonidae, which are collectively divided into approximately 80 subfamilies. Of these, six have been shown to release DNA-containing virus-like particles, encoded w

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Dissertations / Theses on the topic "Parasitoids Immunology"

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Li, Dongmei. "Immune reactions involved in parasitoid-host interactions /." Title page, contents and abstract only, 2002. http://web4.library.adelaide.edu.au/theses/09PH/09phl6926.pdf.

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Lellouche, Eric. "L'immunité locale dans deux parasitoses oculaires, toxoplasmose et onchocércose." Paris 5, 1993. http://www.theses.fr/1993PA05P084.

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Guzman, Josefa. "Rôle du macrophage et du mastocyte dans l'élimination de Giardia par la souris." Lyon 1, 1985. http://www.theses.fr/1985LYO11678.

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Baeza, Elisabeth. "Suivi de la réponse immunitaire précoce aspécifique chez le rat infesté expérimentalement par "Fasciola hepatica"." Montpellier 2, 1992. http://www.theses.fr/1992MON20261.

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Ce travail est une contribution a l'analyse des mecanismes immunitaires precoces qui se mettent en place au cours d'une infestation par f. Hepatica chez le rat. Apres la mise au point d'une technique d'infestation experimentale du rat, la repetabilite de ce type d'infestation a ete verifiee. Une etude de l'evolution de proteines de la reaction inflammatoire et des leucocytes au cours de la phase precoce de la fasciolose a montre une absence de modification de ces marqueurs de l'inflammation pendant les deux premieres semaines qui suivent l'infestation. L'immunomodulation de la reponse inflamma

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Bekkaoui, Abdelhamid. "Rôle de stimulus chimiques de contact dans la reconnaissance des chrysalides-hôtes par diadromus pulchellus Wsm. (hymenoptera), parasitoïde du phytophage acrolepiopsis assectella Zell. (lepidoptera)." Tours, 1992. http://www.theses.fr/1992TOUR4005.

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Le comportement de reconnaissance de l'hôte par l'hyménoptère diadromus pulchellus wsm, parasitoïde des chrysalides d'acrolepiopsis assectella zell, la teigne du poireau, semble détermine en très grande partie, sinon exclusivement, par des stimulus chimiques de contact liés à la cuticule et au cocon de l'hôte. Ces kairomones semblent être des molécules hydrophiles de faible taille et très spécifiques. Elles ne sont en effet pas retrouvées dans la soie de lépidoptères non hôtes. L'élevage de la teigne sur un milieu artificiel pauvre en substances du poireau ou même n'en contenant pas du tout, à

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Arnaud, Violaine. "Analyse immunologique et génétique des facteurs contrôlant le développement de la fibrose causée par le Schistosoma Japonicum au sein d'une population de pêcheurs du lac Dong Ting(Chine)." Aix-Marseille 2, 2008. http://www.theses.fr/2008AIX20709.

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Boas, Beatriz Villas. "Análise fenotípico-funcional das células TCD4+FoxP3+ (T reguladoras) na fase aguda da infecção murina pelo Trypanosoma cruzi." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/42/42133/tde-07102013-083419/.

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Utilizando animais FoxP3+GFP+, estudamos as mudanças fenotípicas em TREG esplênicas durante a fase aguda da infecção pelo clone Sylvio X10/4 de T. cruzi e avaliamos sua atividade supressora. Em relação à expressão (MFI) de diferentes marcadores pelas TREG, observamos um aumento em FoxP3, um aumento progressivo na expressão de CD25, uma pequena população CTLA-4HIGH e um aumento tardio na expressão de GITR. Além disso, observamos aumento em ICOS nos últimos dias analisados e aumento na expressão de Fas e FasL. Ainda, CD69 sofre um pequeno e persistente aumento. Com relação à atividade supressora

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Li, Dongmei 1964. "Immune reactions involved in parasitoid-host interactions." 2002. http://web4.library.adelaide.edu.au/theses/09PH/09phl6926.pdf.

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Bibliography: leaves 113-144. Investigates the functions of the maternal, protein secretions of the endoparasitoid wasps Venturia canescens Gravenhorst regarding their role in providing protection against the host's immune system. Also investigates mucinous protein secretions on the egg surface and coagulation reactions and their role in protecting eggs against host cellular attacks.

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Li, Dongmei. "Immune reactions involved in parasitoid-host interactions / Dongmei Li." Thesis, 2002. http://hdl.handle.net/2440/21757.

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Bibliography: leaves 113-144.<br>ix, 144 leaves, [56] leaves of plates : ill. (some col.) ; 30 cm.<br>Investigates the functions of the maternal, protein secretions of the endoparasitoid wasps Venturia canescens Gravenhorst regarding their role in providing protection against the host's immune system. Also investigates mucinous protein secretions on the egg surface and coagulation reactions and their role in protecting eggs against host cellular attacks.<br>Thesis (Ph.D.)--University of Adelaide, Dept. of Applied & Molecular Ecology, 2002

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Books on the topic "Parasitoids Immunology"

1

Leopoldina-Meeting Parasitismus, Immunreaktionen bei Parasitosen (1991 Halle an der Saale, Germany). Leopoldina-Meeting Parasitismus, Immunreaktionen bei Parasitosen: Vom 25. bis 26. Oktober 1991 in Halle (Saale). Halle, Saale: Deutsche Akademie der Naturforscher Leopoldina, 1992.

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2

Wakelin, Derek. Immunity to parasites: How parasitic infections are controlled. 2nd ed. Cambridge: Cambridge University Press, 1996.

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3

Leopoldina-Meeting Parasitismus, Immunreaktionen bei Parasitosen: Vom 25. bis 26. Oktober 1991 in Halle (Saale) (Nova acta Leopoldina). Deutsche Akademie der Naturforscher Leopoldina, 1992.

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Book chapters on the topic "Parasitoids Immunology"

1

BECKAGE, NANCY E. "PARASITOID POLYDNAVIRUSES AND INSECT IMMUNITY." In Insect Immunology, 243–70. Elsevier, 2008. http://dx.doi.org/10.1016/b978-012373976-6.50012-4.

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