Gotowe bibliografie tematyczne / Acyrthosiphon pisum

Spis treści

  1. Artykuły w czasopismach
  2. Rozprawy doktorskie
  3. Książki
  4. Części książek
  5. Streszczenia konferencji
  6. Raporty organizacyjne

Gotowa bibliografia na temat „Acyrthosiphon pisum”

Autor: Grafiati
Data publikacji: 4 czerwca 2021
Data aktualizacji: 7 lipca 2024

Utwórz poprawne odniesienie w stylach APA, MLA, Chicago, Harvard i wielu innych

Wybierz rodzaj źródła:

Zobacz listy aktualnych artykułów, książek, rozpraw, streszczeń i innych źródeł naukowych na temat „Acyrthosiphon pisum”.

Przycisk „Dodaj do bibliografii” jest dostępny obok każdej pracy w bibliografii. Użyj go – a my automatycznie utworzymy odniesienie bibliograficzne do wybranej pracy w stylu cytowania, którego potrzebujesz: APA, MLA, Harvard, Chicago, Vancouver itp.

Możesz również pobrać pełny tekst publikacji naukowej w formacie „.pdf” i przeczytać adnotację do pracy online, jeśli odpowiednie parametry są dostępne w metadanych.

Artykuły w czasopismach na temat "Acyrthosiphon pisum"

1

Calevro, Federica, Denis Tagu i Patrick Callaerts. "Acyrthosiphon pisum". Trends in Genetics 35, nr 10 (październik 2019): 781–82. http://dx.doi.org/10.1016/j.tig.2019.07.003.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
2

Pickering, J., i A. P. Gutierrez. "DIFFERENTIAL IMPACT OF THE PATHOGEN PANDORA NEOAPHIDIS (R.&H.) HUMBER (ZYGOMYCETES: ENTOMOPHTHORALES) ON THE SPECIES COMPOSITION OF ACYRTHOSIPHON APHIDS IN ALFALFA". Canadian Entomologist 123, nr 2 (kwiecień 1991): 315–20. http://dx.doi.org/10.4039/ent123315-2.

Pełny tekst źródła
Streszczenie:
AbstractA fungal outbreak of Pandora neoaphidis (Remaudière and Hennebert) Humber (Zygomycetes, Entomophthorales, Entomophthoraceae) caused maximum daily mortality of 6 and 34%, respectively, in sympatric populations of Acyrthosiphon kondoi Shinji and Acyrthosiphon pisum Harris (Homoptera, Aphididae). This epidemic suppressed the A. pisum population but not the A. kondoi population. The results suggest that low level infections in A. kondoi may greatly increase the inoculum available for transmission to the highly susceptible A. pisum.
Style APA, Harvard, Vancouver, ISO itp.
3

Łukaszewicz, S., B. Borowiak-Sobkowiak, R. Durak, K. Dancewicz i B. Politycka. "Interaction between Acyrthosiphon pisum and selenium-treated Pisum sativum". European Zoological Journal 88, nr 1 (1.01.2021): 58–76. http://dx.doi.org/10.1080/24750263.2020.1853831.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

Cunha, Suzan Beatriz Zambon da, Carlos Roberto Sousa e Silva i Evoneo Berti-Filho. "FLUTUAÇÃO SAZONAL DE AFÍDEOS E SEUS PREDADORES EM CULTURA DE ALFAFA". BRAZILIAN JOURNAL OF AGRICULTURE - Revista de Agricultura 91, nr 3 (21.12.2016): 230. http://dx.doi.org/10.37856/bja.v91i3.3165.

Pełny tekst źródła
Streszczenie:
Estudou-se a influência da temperatura, precipitação, umidade e ventos, e o controle exercido por predadores na flutuação sazonal dos afídeos Acyrthosiphon pisum, Acyrthosiphon kondoi, Aphis craccivora e Therioaphis trifolli em cultura de alfafa na região de São Carlos, SP. A. pisum foi o afídeo predominante na cultura no período avaliado, agosto de 2011 a julho de 2012. Nenhuma das variáveis ambientais influenciou significativamente a flutuação sazonal de afídeos. O manejo dos cortes na cultura e as ações predatórias foram os principais responsáveis pelas variações na dinâmica populacional desses insetos. Dentre os predadores os coccinelídeos foram os mais abundantes e Harmonia axyridis a espécie mais coletada.
Style APA, Harvard, Vancouver, ISO itp.
5

Cunha, Suzan Beatriz Zambon da, Carlos Roberto Sousa e Silva, Flávio Henrique Góis Diniz i Evôneo Berti-Filho. "Predators of the Alfalfa Aphids Acyrthosiphon pisum (Harris), Aphis craccivora Koch, and Therioaphis trifolii (Monell) (Hemiptera: Aphidoidea) as Determined by the Serological Technique". EntomoBrasilis 9, nr 2 (31.08.2016): 120–23. http://dx.doi.org/10.12741/ebrasilis.v9i2.595.

Pełny tekst źródła
Streszczenie:
Predators of the Alfalfa Aphids Acyrthosiphon pisum (Harris), Aphis craccivora Koch,and Therioaphis trifolii (Monell) (Hemiptera: Aphidoidea) as Determined by the Serological TechniqueAbstract. The serology is an immunological technique based on antigen/antibody reactions in where its main advantages are high sensitivity and specificity that allows the biological recognition at the molecular level. This study evaluates the use of serology technique to determine the predators of the alfalfa aphids Acyrthosiphon pisum (Harris), Aphis craccivora Koch,and Therioaphis trifolii (Monell)(Hemiptera: Aphidoidea). The aphid samplings to obtain the antibodies and their possible predators to be used as antigens were carried out in the alfalfa fields of the Embrapa Pecuária Sudeste Unit, São Carlos, SP. In the period from August 2011 to July 2012. A total of 2,161 arthropod predators, including insects and spiders, were tested. The antibodies obtained for the aphid A. craccivora, A. pisum, and T. trifolii showed partial identity nevertheless still allowed to recognize the predators of alfalfa aphids. Among the insects, syrphids and chrysopids presented the highest percentage of positive results in the serological tests. The species A. craccivora was the most preyed aphid.Determinação de Predadores dos Pulgões da Alfafa Acyrthosiphon pisum (Harris), Aphis craccivora Koch e Therioaphis trifolii (Monell)(Hemiptera: Aphidoidea) por meio da Técnica SerológicaResumo. A serologia é uma técnica imunológica baseada em reações antígeno/anticorpo, em que suas principais vantagens são a alta sensibilidade e especificidade que permitem o reconhecimento biológico em nível molecular. Este trabalho avalia o uso da técnica serológica para determinar os predadores dos pulgões da alfafa, Acyrthosiphon pisum (Harris), Aphis craccivora Koch e Therioaphis trifolii (Monell) (Hemiptera: Aphidoidea). As coletas dos pulgões para a obtenção dos anticorpos e de seus possíveis predadores para serem utilizados como antígenos foram realizadas nos campos de alfafa da Unidade da Embrapa Pecuária Sudeste, São Carlos, SP. no período de agosto de 2011 a julho de 2012. Foram testados 2.161 artrópodes predadores, incluindo insetos e aranhas. Os anticorpos obtidos para os pulgões A. craccivora, A. pisum, e T. trifolii mostraram identidade parcial mas, ainda assim, permitiu reconhecer os predadores dos pulgões da alfafa. Dentre os insetos, sirfídeos e crisopídeos foram os que apresentaram as maiores porcentagens de resultados positivos nos testes serológicos. A. craccivora foi o afídeo mais consumido pelos predadores.
Style APA, Harvard, Vancouver, ISO itp.
6

Gao, Nong, i Jim Hardie. "Melatonin and the pea aphid, Acyrthosiphon pisum". Journal of Insect Physiology 43, nr 7 (lipiec 1997): 615–20. http://dx.doi.org/10.1016/s0022-1910(97)00015-2.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
7

Bishnoi, Ritika, i Deepak Singla. "APMicroDB: A microsatellite database of Acyrthosiphon pisum". Genomics Data 12 (czerwiec 2017): 111–15. http://dx.doi.org/10.1016/j.gdata.2017.03.014.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
8

Wallace, Ian S., Ally J. Shakesby, Jin Ha Hwang, Won Gyu Choi, Natália Martínková, Angela E. Douglas i Daniel M. Roberts. "Acyrthosiphon pisum AQP2: A multifunctional insect aquaglyceroporin". Biochimica et Biophysica Acta (BBA) - Biomembranes 1818, nr 3 (marzec 2012): 627–35. http://dx.doi.org/10.1016/j.bbamem.2011.11.032.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
9

Cooper, Lucy C., Camille Desjonqueres i Simon R. Leather. "Cannibalism in the pea aphid,Acyrthosiphon pisum". Insect Science 21, nr 6 (19.12.2013): 750–58. http://dx.doi.org/10.1111/1744-7917.12070.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
10

Tagu, Denis, Gaël Le Trionnaire, Sylvie Tanguy, Jean-Pierre Gauthier i Jean-René Huynh. "EMS Mutagenesis in the Pea Aphid Acyrthosiphon pisum". G3: Genes|Genomes|Genetics 4, nr 4 (13.02.2014): 657–67. http://dx.doi.org/10.1534/g3.113.009639.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
Więcej źródeł

Rozprawy doktorskie na temat "Acyrthosiphon pisum"

1

François, Camille Léonie Marie Josèphe. "The pea aphid (Acyrthosiphon pisum) and its microorganisms". Thesis, University of York, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.440793.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
2

Liang, Qixin. "Laccase-1 in the pea aphid, Acyrthosiphon pisum (Harris)". Thesis, Manhattan, Kan. : Kansas State University, 2006. http://hdl.handle.net/2097/172.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
3

Whithead, Lynne F. "The symbiotic bacteria of the pea aphid, Acyrthosiphon pisum". Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.333293.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

Wilkinson, Thomas Lees. "Host plant utilization by the pea aphid (Acyrthosiphon pisum) symbiosis". Thesis, University of Oxford, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359556.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
5

Barrette, Richard J. "Characterization of the mitochondrial DNA molecule of pea aphid, Acyrthosiphon pisum". Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq24440.pdf.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
6

Peccoud, Jean. "Spéciation écologique et radiation adaptative dans le complexe du puceron du pois, Acyrthosiphon pisum". Rennes, Agrocampus Ouest, 2009. http://www.theses.fr/2009NSARA063.

Pełny tekst źródła
Streszczenie:
L’hypothèse de la spéciation écologique stipule que la sélection de traits adaptatifs à des niches écologiques différente peut engendrer un isolement reproducteur entre populations, même si ces dernières ne sont pas isolées géographiquement. Les exemples documentés de spéciation écologique dans la nature sont rares, mais les insectes phytophages spécialisés sur une gamme d’hôtes restreinte en sont de bons candidats. En effet, la spécialisation de populations d’insectes sur des plantes-hôtes différentes peut engendrer diverses formes d’isolement reproducteur, tel un isolement par l’habitat ou un isolement temporel. Ainsi, le puceron du pois, Acyrthosiphon pisum, présente à travers le monde des biotypes sympatriques génétiquement différenciés et formetement spécialisés sur certaines espèces de fabacées cultivées comme le pois, le trèfle et la luzerne. Spécifiquement, nous nous sommes intéressés (i) à la diversité écologique et au degré d’isolement reproducteur des biotypes trouvés sur de nombreuses plantes sympatriques, cultivées et sauvages (ii) à la spécialisation écologique des populations du puceron du pois dans une région d’introduction en s’interrogeant sur leur niveau de polyphagie et surs origines, (iii) à l’histoire évolutive de nombreuses populatins spécialisées à travers le monde. Nous avons enfin entrepris (iv) la recherche de symbiotes facultatifs transmis maternellement au sein des différents biotypes et pouvant éventuellement intervenir dans la spécialisation écologique de ces derniers
The hypothesis of ecological speciation states that the selection of adaptive traits in different ecological niches can causes reproductive isolation, even if populations under divergent selection are not geographically isolated. Documented examples of ecological speciation are scarce, but specialized phytophagous insects feedingon restricted host ranges are good candidates. Indeed, specialization of insect populations of different host plants can cause various forms of reproductive isolation, such as habitat isolation or temporal isolation. The pea aphid, Acyrthosiphon pisum, thus presents genetically differentiated and highly specialized sympatric biotypes feeding on restricted host ranges are good candidates. Indeed, specialization of insect populations on different host plants can cause various forms of reproductive isolation, such as habitat isolation or temporal isolation
Style APA, Harvard, Vancouver, ISO itp.
7

Ollivier, Rémi. "Caractérisation des bases génétiques et des déterminants moléculaires impliqués dans la résistance du pois (Pisum sativum) face au puceron du pois (Acyrthosiphon pisum)". Electronic Thesis or Diss., Rennes, Agrocampus Ouest, 2022. http://www.theses.fr/2022NSARB366.

Pełny tekst źródła
Streszczenie:
Dans le cadre d'une agriculture durable, la compréhension des mécanismes moléculaires qui déterminent la spécificité des pucerons pour les plantes est une étape essentielle dans le développement de stratégies de lutte contre les ravageurs. Cependant, les mécanismes conduisant à la compatibilité ou l'incompatibilité entre la plante et le puceron restent inconnus. Cette thèse visait à identifier les bases génétiques et les déterminants moléculaires impliqués dans la résistance du pois au puceron Acyrthosiphon pisum. La variabilité génétique naturelle de la résistance du pois aux biotypes adaptés et non-adaptés d'A. pisum a été identifiée en criblant une collection de 240 génotypes de pois. Une étude de génétique d'association a identifié le locus ApRVII contrôlant la résistance du pois aux biotypes adaptés et non adaptés d’A. pisumCette étude, couplée à des études transcriptomiques de génotypes de pois sélectionnés, a identifié des gènes candidats sous-jacents à ApRVII qui sont potentiellement impliqués dans la résistance du pois à A. pisum. Ces gènes indiquent l'implication des voies de biosynthèse de métabolites secondaires dans la résistance aux pucerons médiée par ApRVII. De plus, les études transcriptomiques ont identifié des voies moléculaires du pois spécifiquement réprimées pendant l'infestation par le biotype adapté, suggérant une possible manipulation du transcriptome du pois par l'infestation de pucerons. Les connaissances fournies au cours de cette thèse contribuent à une meilleure compréhension des mécanismes impliqués dans la compatibilité et l'incompatibilité entre les plantes et les pucerons
In the context of sustainable agriculture, understanding the molecular mechanisms that determine the specificity of aphids to plants is an essential step in developing pest management strategies. However, the mechanisms leading to compatibility or incompatibility between the plant and the aphid remain unknown. This thesis aimed to identify the genetic basis and molecular determinants involved in pea resistance to the aphid Acyrthosiphon pisum. The natural genetic variability of pea resistance to pea-adapted and non-adapted biotypes of the A. pisum was identified by screening a collection of 240 pea genotypes. An association genetics study identified the ApRVII locus controlling pea resistance to both adapted and non-adapted A. pisum biotypes.This study, coupled with transcriptomic studies of selected pea genotypes, identified candidate genes underlying ApRVII that are potentially involved in pea resistance to A. pisum. These genes indicated the involvement of biosynthetic pathways of secondary metabolites in ApRVII mediated resistance to the aphids. In addition, the transcriptomic studies identified pea molecular pathways specifically repressed during the infestation by the adapted biotype, suggesting a possible manipulation of pea transcriptome by the aphid infestation. The knowledge provided during this thesis contributes to a better understanding of the mechanisms involved in the compatibility and incompatibility between plants and aphids
Style APA, Harvard, Vancouver, ISO itp.
8

Madison, Rachael Marie. "Gene expression and the nutritional biology of the pea aphid, Acyrthosiphon pisum". Thesis, University of York, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.533518.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
9

Hendry, Tory A., Kelley J. Clark i David A. Baltrus. "A highly infective plant-associated bacterium influences reproductive rates in pea aphids". ROYAL SOC, 2016. http://hdl.handle.net/10150/617209.

Pełny tekst źródła
Streszczenie:
Pea aphids, Acyrthosiphon pisum, have the potential to increase reproduction as a defence against pathogens, though how frequently this occurs or how infection with live pathogens influences this response is not well understood. Here we determine the minimum infective dose of an environmentally common bacterium and possible aphid pathogen, Pseudomonas syringae, to determine the likelihood of pathogenic effects to pea aphids. Additionally, we used P. syringae infection to investigate how live pathogens may alter reproductive rates. We found that oral bacterial exposure decreased subsequent survival of aphids in a dose-dependent manner and we estimate that ingestion of less than 10 bacterial cells is sufficient to increase aphid mortality. Pathogen dose was positively related to aphid reproduction. Aphids exposed to low bacterial doses showed decreased, although statistically indistinguishable, fecundity compared to controls. Aphids exposed to high doses reproduced significantly more than low dose treatments and also more, but not significantly so, than controls. These results are consistent with previous studies suggesting that pea aphids may use fecundity compensation as a response to pathogens. Consequently, even low levels of exposure to a common plant-associated bacterium may therefore have significant effects on pea aphid survival and reproduction.
Style APA, Harvard, Vancouver, ISO itp.
10

Charles, Hubert. "Analyse du transcriptome de Buchnera aphidicola, la bactérie symbiotique du puceron Acyrthosiphon pisum". Habilitation à diriger des recherches, INSA de Lyon, 2006. http://tel.archives-ouvertes.fr/tel-00482270.

Pełny tekst źródła
Streszczenie:
Les progrès fulgurants de ces dix dernières années réalisés dans les domaines de la microinformatique et de la microfluidique associés au génie génétique (PCR et séquençage) ont permis un changement d'échelle dans la quantité des données acquises au cours d'une même expérience. La transcriptomique est directement issue de ces avancées technologiques. Ce mémoire présenté pour l'obtention d'une Habilitation à Diriger des Recherdes porte sur l'analyse du transcriptome de la bactérie intracellulaire obligatoire des pucerons, Buchnera aphidicola. Dans la première partie, les principales méthodes d'analyses statistiques différentielles et d'intégration des données transcriptomiques sont présentées sous la forme d'une analyse bibliographique. La deuxième partie est consacrée au développement d'outils bioinformatiques : ROSO, un logiciel d'optimisation des sondes oligonucléotidiques, la puce Buchnera et SITRANS, un système d'information pour la gestion et la publication des données d'expression. Enfin, la dernière partie est consacrée à la caractérisation du transcriptome de Buchnera en condition de stress trophique de son hôte, le puceron du pois Acyrthosiphon pisum. La régulation transcriptionnelle chez les bactéries symbiotiques intracellulaires à génome réduit est encore actuellement très mal connue. Cette question sera abordée chez Buchnera tout d'abord au niveau évolutif par l'étude de la relation entre l'expression des gènes et leur organisation dans le génome, puis au niveau fonctionnel, par la caractérisation de la réponse de la bactérie à une diminution de la quantité d'acides aminés essentiels dans le substrat nutritif du puceron, combinée à un stress osmotique.
Style APA, Harvard, Vancouver, ISO itp.
Więcej źródeł

Książki na temat "Acyrthosiphon pisum"

1

Yencho, George Craig. Economic injury level, action threshold and population development of the pea aphid, Acyrthosiphon pisum (Harris) (Homoptera:Aphididae), on green peas, Pisum sativum L. 1985.

Znajdź pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.

Części książek na temat "Acyrthosiphon pisum"

1

Frank, J. Howard, J. Howard Frank, Michael C. Thomas, Allan A. Yousten, F. William Howard, Robin M. Giblin-davis, John B. Heppner i in. "Pea Aphid, Acyrthosiphon pisum (Harris) (Hemiptera: Aphididae)". W Encyclopedia of Entomology, 2766–70. Dordrecht: Springer Netherlands, 2008. http://dx.doi.org/10.1007/978-1-4020-6359-6_2813.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
2

Wilkinson, T. L., i H. Ishikawa. "The assimilation and allocation of nutrients by symbiotic and aposymbiotic pea aphids, Acyrthosiphon pisum". W Proceedings of the 10th International Symposium on Insect-Plant Relationships, 195–201. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-1890-5_25.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
3

Caillaud, Marina C. "Behavioural correlates of genetic divergence due to host specialization in the pea aphid, Acyrthosiphon pisum". W Proceedings of the 10th International Symposium on Insect-Plant Relationships, 227–32. Dordrecht: Springer Netherlands, 1999. http://dx.doi.org/10.1007/978-94-017-1890-5_28.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
4

Rahbé, Yvan, i Gérard Febvay. "Effect of certain proteins on Acyrthosiphon pisum growth and development. Potential influence on aphid-plant interactions". W Proceedings of the 8th International Symposium on Insect-Plant Relationships, 301–3. Dordrecht: Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-1654-1_96.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
5

"The Ontogenesis of the Pea Aphid Acyrthosiphon pisum". W Biology and Ecology of Aphids, 24–61. CRC Press, 2016. http://dx.doi.org/10.1201/b19967-4.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.

Streszczenia konferencji na temat "Acyrthosiphon pisum"

1

Simon, Jean-Christophe. "Ecological specialization and speciation in the pea aphid complex,Acyrthosiphon pisum(Hemiptera, Aphididae". W 2016 International Congress of Entomology. Entomological Society of America, 2016. http://dx.doi.org/10.1603/ice.2016.94929.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.
2

YAROU, Boni Barthélémy, Thomas Bawin, Françoise Assogba-Komlan, Armel G. C. Mensah i Frédéric Francis. "Repellent Effect of Basil (<em>Ocimum</em> spp) on Pea Aphid (<em>Acyrthosiphon pisum</em> Harris) and Potential Use in Crops". W The 1st International Electronic Conference on Entomology. Basel, Switzerland: MDPI, 2021. http://dx.doi.org/10.3390/iece-10395.

Pełny tekst źródła
Style APA, Harvard, Vancouver, ISO itp.

Raporty organizacyjne na temat "Acyrthosiphon pisum"

1

Rafaeli, Ada, i Russell Jurenka. Molecular Characterization of PBAN G-protein Coupled Receptors in Moth Pest Species: Design of Antagonists. United States Department of Agriculture, grudzień 2012. http://dx.doi.org/10.32747/2012.7593390.bard.

Pełny tekst źródła
Streszczenie:
The proposed research was directed at determining the activation/binding domains and gene regulation of the PBAN-R’s thereby providing information for the design and screening of potential PBAN-R-blockers and to indicate possible ways of preventing the process from proceeding to its completion. Our specific aims included: (1) The identification of the PBAN-R binding domain by a combination of: (a) in silico modeling studies for identifying specific amino-acid side chains that are likely to be involved in binding PBAN with the receptor and; (b) bioassays to verify the modeling studies using mutant receptors, cell lines and pheromone glands (at tissue and organism levels) against selected, designed compounds to confirm if compounds are agonists or antagonists. (2) The elucidation ofthemolecular regulationmechanisms of PBAN-R by:(a) age-dependence of gene expression; (b) the effect of hormones and; (c) PBAN-R characterization in male hair-pencil complexes. Background to the topic Insects have several closely related G protein-coupled receptors (GPCRs) belonging to the pyrokinin/PBAN family, one with the ligand pheromone biosynthesis activating neuropeptide or pyrokinin-2 and another with diapause hormone or pyrokinin-1 as a ligand. We were unable to identify the diapause hormone receptor from Helicoverpa zea despite considerable effort. A third, related receptor is activated by a product of the capa gene, periviscerokinins. The pyrokinin/PBAN family of GPCRs and their ligands has been identified in various insects, such as Drosophila, several moth species, mosquitoes, Triboliumcastaneum, Apis mellifera, Nasoniavitripennis, and Acyrthosiphon pisum. Physiological functions of pyrokinin peptides include muscle contraction, whereas PBAN regulates pheromone production in moths plus other functions indicating the pleiotropic nature of these ligands. Based on the alignment of annotated genomic sequences, the primary and secondary structures of the pyrokinin/PBAN family of receptors have similarity with the corresponding structures of the capa or periviscerokinin receptors of insects and the neuromedin U receptors found in vertebrates. Major conclusions, solutions, achievements Evolutionary trace analysisof receptor extracellular domains exhibited several class-specific amino acid residues, which could indicate putative domains for activation of these receptors by ligand recognition and binding. Through site-directed point mutations, the 3rd extracellular domain of PBAN-R was shown to be critical for ligand selection. We identified three receptors that belong to the PBAN family of GPCRs and a partial sequence for the periviscerokinin receptor from the European corn borer, Ostrinianubilalis. Functional expression studies confirmed that only the C-variant of the PBAN-R is active. We identified a non-peptide agonist that will activate the PBAN-receptor from H. zea. We determined that there is transcriptional control of the PBAN-R in two moth species during the development of the pupa to adult, and we demonstrated that this transcriptional regulation is independent of juvenile hormone biosynthesis. This transcriptional control also occurs in male hair-pencil gland complexes of both moth species indicating a regulatory role for PBAN in males. Ultimate confirmation for PBAN's function in the male tissue was revealed through knockdown of the PBAN-R using RNAi-mediated gene-silencing. Implications, both scientific and agricultural The identification of a non-peptide agonist can be exploited in the future for the design of additional compounds that will activate the receptor and to elucidate the binding properties of this receptor. The increase in expression levels of the PBAN-R transcript was delineated to occur at a critical period of 5 hours post-eclosion and its regulation can now be studied. The mysterious role of PBAN in the males was elucidated by using a combination of physiological, biochemical and molecular genetics techniques.
Style APA, Harvard, Vancouver, ISO itp.
Możesz być także zainteresowany rozszerzonymi bibliografiami na temat „Acyrthosiphon pisum” dla poszczególnych typów źródeł:
Artykuły w czasopismach Rozprawy doktorskie
Oferujemy zniżki na wszystkie plany premium dla autorów, których prace zostały uwzględnione w tematycznych zestawieniach literatury. Skontaktuj się z nami, aby uzyskać unikalny kod promocyjny!

Do bibliografii