To see the other types of publications on this topic, follow the link: Irony expressions.

Dissertations / Theses on the topic 'Irony expressions'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 dissertations / theses for your research on the topic 'Irony expressions.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Ванганен, Д. Е., Ніна Іванівна Чернюк, Нина Ивановна Чернюк та Nina Ivanivna Cherniuk. "Передача англійських іронічних висловлювань українською мовою". Thesis, Нова Освіта, 2014. http://essuir.sumdu.edu.ua/handle/123456789/34050.

Full text
Abstract:
Останнім часом спостерігається зростання інтересу до вивчення особливостей функціонування іронії в художньому творі. Феномен іронії, без сумніву, є проявом різноманіття соціальних відносин. Іронічне бачення життя стало на сьогоднішній день однією з основних властивостей міжособистісного спілкування. При цитуванні документа, використовуйте посилання http://essuir.sumdu.edu.ua/handle/123456789/34050
APA, Harvard, Vancouver, ISO, and other styles
2

Andrade, Joyce Villela de. "As expressões idiomáticas do português do Brasil e do espanhol da Argentina: recurso complementar para a construção de uma argumentação irônica, implicações e usos." Universidade de São Paulo, 2011. http://www.teses.usp.br/teses/disponiveis/8/8145/tde-04042012-154445/.

Full text
Abstract:
As expressões idiomáticas (EIs), com suas características peculiares, são utilizadas com certa frequência como recurso para a construção da argumentação irônica em textos opinativos. Este trabalho pretendeu analisar, com base nos estudos discursivos, as consequências de seu emprego. Nosso primeiro passo foi diferenciá-las de outros conceitos como os provérbios, ditos populares, frases feitas. Consideramos três como as principais características identificadoras de uma EI: combinabilidade de no mínimo duas palavras, idiomaticidade e inserção dentro de uma memória da língua e discursiva. Num segu
APA, Harvard, Vancouver, ISO, and other styles
3

Stevens, James B. "The molecular genetics of iron uptake in rhizobium leguminosarum." Thesis, University of East Anglia, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.323075.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Guo, Jia-Hsin. "Expression and Iron Loading of Recombinant Ferritin Homopolymers." DigitalCommons@USU, 1998. https://digitalcommons.usu.edu/etd/5078.

Full text
Abstract:
Ferritin is an iron storage protein consisting of H and L chains to form a 24-subunit heropolymer. Ceruloplamin oxidizes Fe(II) and then loads the iron into ferritin. This research was conducted to determine which ferritin subunit is involved and whether a proposed iron-loading channel is required for iron loading by ceruloplasmin. Recombinant rat liver H and L chain ferritin homopolymers, designated as rH-Ft and rL-Ft, respectively, were produced using insect cell-baculovirus and Escherichia coli expression systems. The expressed rH-Ft strongly suppressed the growth of the host. The rH-Ft exp
APA, Harvard, Vancouver, ISO, and other styles
5

Walker, Caray A. "Iron-dependent regulation of gene expression in Corynebacterium pseudotuberculosis." Thesis, University of Glasgow, 2009. http://theses.gla.ac.uk/1392/.

Full text
Abstract:
This study set out to analyse C. pseudotuberculosis within an environment relevant to that which would be encountered within its natural host. The impact of the availability of iron within the growth environment of numerous bacteria has been widely reported, and an equivalent investigation was conducted to determine whether the same was true of C. pseudotuberculosis. To this end, a novel chemically-defined medium was designed, which supported the growth of C. pseudotuberculosis, but in which the concentration of specific growth factors could be manipulated. Subsequently, iron was shown to be e
APA, Harvard, Vancouver, ISO, and other styles
6

Xiong, Anming Jayaswal Radheshyam K. "Regulation of gene expression by iron and zinc in Staphylococcus aureus." Normal, Ill. Illinois State University, 1999. http://wwwlib.umi.com/cr/ilstu/fullcit?p9960431.

Full text
Abstract:
Thesis (Ph. D.)--Illinois State University, 1999.<br>Title from title page screen, viewed July 31, 2006. Dissertation Committee: Radheshyam K. Jayaswal (chair), Brian J. Wilkinson, Anthony J. Otsuka, David L. Williams, Wade A. Nichols. Includes bibliographical references and abstract Also available in print.
APA, Harvard, Vancouver, ISO, and other styles
7

Lin, Xiaohui. "Molecular analysis of an iron transporter gene of Burkholderia species MBA4." Click to view the E-thesis via HKUTO, 2009. http://sunzi.lib.hku.hk/hkuto/record/B4218194X.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Ledala, Nagender Jayaswal Radheshyam K. "Molecular characterization of fur and transcriptional profiling of fur- and iron- regulated gene expression in Listeria monocytogenes." Normal, Ill. : Illinois State University, 2007. http://proquest.umi.com/pqdweb?index=0&did=1432808101&SrchMode=2&sid=8&Fmt=2&VInst=PROD&VType=PQD&RQT=309&VName=PQD&TS=1216230236&clientId=43838.

Full text
Abstract:
Thesis (Ph. D.)--Illinois State University, 2007.<br>Title from title page screen, viewed on July 16, 2008. Dissertation Committee: Radheshyam K. Jayaswal (chair), Brian J. Wilkinson, Anthony J. Otsuka, Wade A. Nichols, Laura A. Vogel. Includes bibliographical references and abstract. Also available in print.
APA, Harvard, Vancouver, ISO, and other styles
9

Dzikaitė, Vijolė. "Studies of proteins in heme and iron metabolism /." Stockholm, 2004. http://diss.kib.ki.se/2004/91-7349-762-2/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Hasim, Mohamed Shaad. "Molecular Mechanisms of MMP9 Expression in Astrocytes Induced by Heme and Iron." Thesis, Université d'Ottawa / University of Ottawa, 2012. http://hdl.handle.net/10393/23575.

Full text
Abstract:
The disruption of the blood-brain barrier (BBB) occurs after ischemic and hemorrhagic stroke and contributes to secondary brain damage. Matrix metalloproteinase-9 (MMP9) has been identified to be the main mediator of post-stroke BBB disruption. It is unknown whether deposition of heme/iron in the brain following stroke would affect MMP9 expression. In this study, I have demonstrated that heme/iron up-regulated MMP9 expression in rat astrocytes and that this upregulation was most likely due to reactive oxygen species (ROS) generated by heme/iron deposition on cells. ROS can activate AP-1 an
APA, Harvard, Vancouver, ISO, and other styles
11

Creighton-Gutteridge, Mark. "The role of low molecular mass iron in UVA-modulated gene expression." Thesis, University of Bath, 2002. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.760817.

Full text
APA, Harvard, Vancouver, ISO, and other styles
12

Salama, M. F. I. "Regulation of hepcidin and hemojuvelin expression and their role in iron homeostasis." Thesis, University College London (University of London), 2010. http://discovery.ucl.ac.uk/645851/.

Full text
Abstract:
Hepcidin is the key regulator of iron homeostasis acting as a negative regulator of intestinal iron absorption. Several proteins have recently been identified to act as upstream regulators of hepcidin expression, such as HFE and hemojuvelin (HJV). Although hepcidin is regulated by iron, the molecules involved in this regulation and whether HFE is involved in this regulation remain to be clarified. The aims of this study were to investigate the molecules involved in hepcidin regulation by iron and the role played by HFE in this regulation, to understand the regulation of hepcidin and HJV expres
APA, Harvard, Vancouver, ISO, and other styles
13

Lin, Xiaohui, and 林晓晖. "Molecular analysis of an iron transporter gene of Burkholderia speciesMBA4." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2009. http://hub.hku.hk/bib/B4218194X.

Full text
APA, Harvard, Vancouver, ISO, and other styles
14

Butcher, James. "The Roles of Iron, Fur and PerR in Regulating Gene Expression in Campylobacter jejuni." Thesis, Université d'Ottawa / University of Ottawa, 2015. http://hdl.handle.net/10393/32095.

Full text
Abstract:
Campylobacter jejuni is one of the most frequent causes of gastroenteritis in both the developing and the developed world. Understanding C. jejuni biology is paramount to reducing the amount of Campylobacter jejuni in the food chain, however our understanding of the regulatory networks that enable Campylobacter jejuni to successfully colonize various hosts remains incomplete. Campylobacter jejuni has an absolute requirement for iron in order to grow as iron catalyzes a wide range of essential biochemical reactions. In contrast to many Gram negative bacteria, the genome of Campylobacter jejuni
APA, Harvard, Vancouver, ISO, and other styles
15

Badilla, Rubilar Mariela. "A comparative study of the expression of irony and sarcasm in north american comedies from 1950 to 2010." Tesis, Universidad de Chile, 2013. http://repositorio.uchile.cl/handle/2250/139532.

Full text
Abstract:
Tesis para optar al grado de Magíster en Lingüística mención Lengua Inglesa<br>Autor no autoriza el acceso a texto completo de su documento.<br>The purpose of this research is to analyze ironic and sarcastic utterances in the number of occurrence and their sociopragmatic function is sitcoms from different decades from 1950 to 2010. To carry out the analysis, seven transcripts from seven different decades with their correspondent videos were selected. Once the ironic and sarcastic utterances were identified, two matrices of analysis were utilized. For ironic utterances, the matrix of analysis p
APA, Harvard, Vancouver, ISO, and other styles
16

Balzan, Rena. "Cloning and expression of iron superoxide dismutase in Escherichia coli and in yeast." Thesis, Cranfield University, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359571.

Full text
APA, Harvard, Vancouver, ISO, and other styles
17

Alpar, Danende Z. "The Format As An Iron Cage: Writing In Sociology And Anthropology." Master's thesis, METU, 2009. http://etd.lib.metu.edu.tr/upload/12611183/index.pdf.

Full text
Abstract:
This thesis analyzes the prevailing formats of writing in sociology or anthropology that are considered scientific. For whom are sociology and anthropology texts written, and who are the readers of these texts? How does this format of writing that constitutes a text as scientific influence the text-reader relationship? In discussing this, the legitimate ways of writing of sociology and anthropology are presented together with what scientificity brings. the reflexive critique that looks at sociology and anthropology with the very methods of these disciplines is explained in its main lines. wit
APA, Harvard, Vancouver, ISO, and other styles
18

Hernandez, Diana Raquel. "Regulation of Expression of a Neisseria Gonorrhoeae tRNA-Modification Enzyme (Gcp)." Diss., The University of Arizona, 2012. http://hdl.handle.net/10150/242381.

Full text
Abstract:
Neisseria gonorrhoeae (Ng) encounters different microenvironments during its life-cycle. Some of these niches have different concentrations of oxygen, which influences the rate of Ng growth; as well as iron, an element essential for Ng survival. Differential expression of several proteins allows the bacteria to adapt to the diverse conditions it comes encounters. One protein affected by environmental changes during Ng growth is Gcp, a tRNA-modification enzyme essential for protein synthesis. To study the regulation of expression of Gcp, we first analyzed the sequence of its ORF, gcp. Orthologs
APA, Harvard, Vancouver, ISO, and other styles
19

Li, Jing. "Studies on iron-dependent regulation of transferrin receptor gene expression in chicken HD3 cells." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq29742.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
20

Li, Jing 1957. "Studies on iron-dependent regulation of transferrin receptor gene expression in chicken HD3 cells." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=27368.

Full text
Abstract:
Expression of the transferrin receptor (TfR) gene is developmentally regulated in mammalian cells (1), an iron-dependent post-transcription regulatory mechanism has been demonstrated in non-erythroid cell (2,3). In order to understand the molecular mechanism underlying the iron-dependent regulation of the TfR gene expression in the differentiating erythroid cell, a virus-transformed chicken erythroblast cell line, HD3 was employed in this study. We have investigated the possible effects of iron on the TfR gene expression that might involve regulatory mechanisms at the transcriptional and/or th
APA, Harvard, Vancouver, ISO, and other styles
21

Oliveira, Susana João Cunha de. "Impact of the UPR on the expression of relevant genes for cellular iron metabolism." Doctoral thesis, Instituto de Ciências Biomédicas Abel Salazar, 2009. http://hdl.handle.net/10216/24349.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

Shirase, Tomoyuki. "Suppression of SLC11A2 expression is essential to maintain duodenal integrity during dietary iron overload." Kyoto University, 2012. http://hdl.handle.net/2433/152506.

Full text
APA, Harvard, Vancouver, ISO, and other styles
23

Oliveira, Susana João Cunha de. "Impact of the UPR on the expression of relevant genes for cellular iron metabolism." Tese, Instituto de Ciências Biomédicas Abel Salazar, 2009. http://hdl.handle.net/10216/24349.

Full text
APA, Harvard, Vancouver, ISO, and other styles
24

Sonzogni, L. "IN VITRO FERROPORTIN EXPRESSION IN NON-TRANSFUSION DEPENDENT THALASSEMIA DURING ERYTHROID DIFFERENTIATION." Doctoral thesis, Università degli Studi di Milano, 2015. http://hdl.handle.net/2434/258239.

Full text
Abstract:
INTRODUZIONE Le β-talassemie sono una delle malattie genetiche più frequenti in tutto il mondo con 270 milioni di portatori e 350.000 nuovi nati affetti all’anno. Questa malattia è geneticamente caratterizzata dalla perdita di produzione della catena β globinica dell'emoglobina adulta, dovuta a diverse mutazioni nel gene della β-globina. Poiché il gene beta è espresso su entrambi i cromosomi 11, possiamo avere due differenti tipi (e con differente gravità) di beta talassemia a seconda dell’assenza di entrambi o di un solo gene della beta globina: nel primo caso si ha la β talassemia MAJOR
APA, Harvard, Vancouver, ISO, and other styles
25

Johnson, Deborah Cumaraswamy. "Controlled Expression and Functional Analysis of the Iron-Sulfur Cluster Biosynthetic Machinery in Azotobacter vinelandii." Diss., Virginia Tech, 2006. http://hdl.handle.net/10919/27755.

Full text
Abstract:
A system was developed for the controlled expression of genes in Azotobacter vinelandii by using genomic fusions to the sucrose catabolic regulon. This system was used for the functional analysis of the A. vinelandii isc genes, whose products are involved in the maturation of [Fe-S] proteins. For this analysis the scrX gene, contained within the sucrose catabolic regulon, was replaced by the A. vinelandii iscS, iscU, iscA, hscB, hscA, fdx, iscX gene cluster, resulting in duplicate genomic copies of these genes, one whose expression is directed by the normal isc regulatory elements (Pisc) and
APA, Harvard, Vancouver, ISO, and other styles
26

Holmström, Petra. "Clinical and experimental studies on HFE and other genes involved in iron homeostasis /." Stockholm, 2004. http://diss.kib.ki.se/2004/91-7140-073-7/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
27

Johnson, Deborah. "Regulation of iron transport and transporter expression in intestinal epithelial cells by dietary and humoral agents." Thesis, University of Surrey, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.426040.

Full text
APA, Harvard, Vancouver, ISO, and other styles
28

Duarte, Tiago Pereira de Lacerda Costa. "Effects of vitamin C on DNA damage, iron homeostasis and gene expression profiling in human fibroblasts." Thesis, University of Leicester, 2006. http://hdl.handle.net/2381/29854.

Full text
Abstract:
Vitamin C (ascorbic acid, AA) is an important antioxidant in human plasma. AA has, however, other important, non-antioxidant roles in cells. Of particular interest is its involvement in iron metabolism, since AA enhances dietary iron absorption, promotes Fenton reactions in vitro and was reported to have deleterious effects in individuals with iron overload. The mechanisms of AA-driven free radical generation from iron have been the subject of great discussion. However, whilst the AA-driven Fenton reaction is well established in test tube reactions, the relevance of this pro-oxidant chemistry
APA, Harvard, Vancouver, ISO, and other styles
29

Luscieti, Sara. "The Iron Regulatory Protein/Iron Responsive Element (IRP/IRE) system: functional studies of new target mRNAs and pathological implications for novel IRE mutations." Doctoral thesis, Universitat de Barcelona, 2016. http://hdl.handle.net/10803/399593.

Full text
Abstract:
Iron is an essential micronutrient required for many cellular reactions and a tight regulation of its metabolism is therefore crucial for health. Cellular iron homeostasis relies on the coordination of iron uptake, storage and mobilization. These processes are controlled post-transcriptionally by the IRP/IRE regulatory system. The Iron Regulatory Proteins (IRP1 and IRP2) can recognize cis- regulatory mRNA motifs termed IREs (Iron Responsive Elements), conserved RNA elements located in the untranslated regions (UTR) of mRNAs that encode for proteins involved in iron metabolism. IRP/IRE interact
APA, Harvard, Vancouver, ISO, and other styles
30

Chan, Roxanne Yuen Yee. "Transferrin receptor and ferrochelatase mRNA expression in erythroid and non-erythroid cells : implication for intracellular iron metabolism." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39397.

Full text
Abstract:
The objective of this study is to demonstrate differences between erythroid and nonerythroid iron metabolism. Erythroid specific gene expression for transferrin receptor (TfR) which is a transporter of transferrin-bound iron, and for ferrochelatase which uses internalized iron to form heme, is found in dimethylsulfoxide-inducible murine erythroleukemia (MEL) cells. During MEL cell differentiation which parallels erythroid differentiation in vivo, TfR mRNA increases resulting from transcriptional activation of the gene and increased mRNA stability while ferrochelatase mRNA level increases with
APA, Harvard, Vancouver, ISO, and other styles
31

Fuduche, Maxime. "Croissance et synthèse de magnétosomes chez la bactérie magnétotactique marine Magnetospira sp (souche QH-2)." Electronic Thesis or Diss., Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0157.

Full text
Abstract:
Les bactéries magnétotactiques (MTB) ont la particularité de s’orienter le long des lignes de champ magnétique terrestre. Ce comportement est lié à la présence d’organites intracellulaires appelés magnétosomes, constitués d’un nanocristal de fer magnétique enveloppé d’une membrane biologique. L’un des obstacles majeurs rencontrés dans l’étude des MTB microaérophiles réside dans la difficulté à les cultiver, notamment du fait de leur extrême sensibilité à l’oxygène, nécessaire pour la croissance mais qui en même temps inhibe fortement la synthèse des magnétosomes. Dans ce travail, un protocole
APA, Harvard, Vancouver, ISO, and other styles
32

Santos, Juliana Gonçalves dos. "Análise da expressão de genes relacionados ao metabolismo do ferro em macrófagos humanos infectados com cepas de Mycobacterium tuberculosis." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/9/9136/tde-27052015-150852/.

Full text
Abstract:
O ferro (Fe) é um dos metais mais importantes para a homeostase. Está envolvido em vários processos fisiológicos como, por exemplo, processo redox, síntese de DNA, metabolismo energético e transporte de biomoléculas. A regulação da concentração deste metal é bem controlada já que o seu excesso pode culminar na produção de espécies reativas de oxigênio que causam dano celular e sua escassez inibe o sistema imunológico. Um dos elementos chaves para o sucesso da cura de doenças infecciosas está na capacidade do hospedeiro em conter a proliferação do microrganismo e na ativação controlada da imuni
APA, Harvard, Vancouver, ISO, and other styles
33

Tchernitchko, Dimitri. "Études moléculaires de DMT1, un transporteur membranaire du fer." Paris 7, 2002. http://www.theses.fr/2002PA077183.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

Wisedchaisri, Goragot. "Structural basis for transcription regulations in Mycobacterium tuberculosis by iron-dependent regulator and dormancy survival regulator /." Thesis, Connect to this title online; UW restricted, 2005. http://hdl.handle.net/1773/9269.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

Koorts, Alida Maria. "Expression of the H-subunit and L-subunit of ferritin in bone marrow macrophages and cells of the erythron during chronic immune stimulation." Thesis, Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-03122010-195432/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Sow, Fatoumata B. "Expression and regulation of the iron regulatory hormone and antimicrobial peptide hepcidin in mycobacteria-infected mice and macrophages." Columbus, Ohio : Ohio State University, 2007. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1180299600.

Full text
APA, Harvard, Vancouver, ISO, and other styles
37

Knight, Julie Sylvia. "The isolation, characterization and expression of the gene encoding the chloroplast Rieske iron-sulphur protein of Arabidopsis thaliana." Thesis, University of Cambridge, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.338309.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Debeljak, Pavla. "The coupling of carbon and iron cycles in the Southern Ocean through microbial metabolism." Electronic Thesis or Diss., Sorbonne université, 2019. https://accesdistant.sorbonne-universite.fr/login?url=https://theses-intra.sorbonne-universite.fr/2019SORUS194.pdf.

Full text
Abstract:
L'océan Austral est caractérisé par l’acronyme anglais (HNLC) signifiant qu’il contient des concentrations en nutriments élevées, mais que la biomasse phytoplanctonique y est faible. Cette situation paradoxale est due à la limitation du phytoplancton par le fer (Fe). L'augmentation de la biomasse phytoplanctonique en réponse à l'apport de Fe et, par conséquent, une plus grande absorption de dioxyde de carbone (CO2), a été démontrée dans plusieurs expériences de fertilisation artificielle et dans des régions naturellement fertilisées de l'océan Austral. Cependant, l'impact de Fe sur les procary
APA, Harvard, Vancouver, ISO, and other styles
39

Wahedi, Mastura, Aaron M. Wortham, Mark D. Kleven, et al. "Matriptase-2 suppresses hepcidin expression by cleaving multiple components of the hepcidin induction pathway." AMER SOC BIOCHEMISTRY MOLECULAR BIOLOGY INC, 2017. http://hdl.handle.net/10150/626185.

Full text
Abstract:
Systemic iron homeostasis is maintained by regulation of iron absorption in the duodenum, iron recycling from erythrocytes, and iron mobilization from the liver and is controlled by the hepatic hormone hepcidin. Hepcidin expression is induced via the bone morphogenetic protein (BMP) signaling pathway that preferentially uses two type I (ALK2 and ALK3) and two type II (ActRIIA and BMPR2) BMP receptors. Hemojuvelin (HJV), HFE, and transferrin receptor-2 (TfR2) facilitate this process presumably by forming a plasma membrane complex with BMP receptors. Matriptase-2 (MT2) is a protease and key supp
APA, Harvard, Vancouver, ISO, and other styles
40

Siddiqui, Afreen. "Partial Expression of the VbsS gene in Rhizobium Leguminosarum ATCC 14479 and In-Silico Analysis of the vbs Gene Cluster in Various Microorganisms." Digital Commons @ East Tennessee State University, 2021. https://dc.etsu.edu/honors/626.

Full text
Abstract:
Iron is extremely important for many organisms. Despite its abundancy, it exists in insoluble forms that makes its usability difficult. Some organisms secrete siderophores, low molecular weight compounds, that can chelate iron and convert it into usable forms for cells. One such organism, Rhizobium leguminosarum, is a nitrogen fixing symbiont proteobacteria that infects leguminous plants. The genome of Rhizobium leguminosarum ATCC 14479, which infects the red clover, Trifoli pratense, has previously been completely sequenced in our lab. Our lab has identified several genes in this strain invol
APA, Harvard, Vancouver, ISO, and other styles
41

Fuduche, Maxime. "Croissance et synthèse de magnétosomes chez la bactérie magnétotactique marine Magnetospira sp (souche QH-2)." Thesis, Aix-Marseille, 2017. http://www.theses.fr/2017AIXM0157.

Full text
Abstract:
Les bactéries magnétotactiques (MTB) ont la particularité de s’orienter le long des lignes de champ magnétique terrestre. Ce comportement est lié à la présence d’organites intracellulaires appelés magnétosomes, constitués d’un nanocristal de fer magnétique enveloppé d’une membrane biologique. L’un des obstacles majeurs rencontrés dans l’étude des MTB microaérophiles réside dans la difficulté à les cultiver, notamment du fait de leur extrême sensibilité à l’oxygène, nécessaire pour la croissance mais qui en même temps inhibe fortement la synthèse des magnétosomes. Dans ce travail, un protocole
APA, Harvard, Vancouver, ISO, and other styles
42

LaRue, Richard Wayne. "Peptide Antisera Generation against Three Chlamydia trachomatis Hsp60 Homologues to Examine Expression of each Hsp60 during Iron Restrictive Growth." [Johnson City, Tenn. : East Tennessee State University], 2004. https://dc.etsu.edu/etd/881.

Full text
Abstract:
Thesis (M.S.)--East Tennessee State University, 2004.<br>Title from electronic submission form. ETSU ETD database URN: etd-0329104-150749. Includes bibliographical references. Also available via Internet at the UMI web site.
APA, Harvard, Vancouver, ISO, and other styles
43

Lefebvre, Thibaud. "Approche systémique du rôle et de la régulation de l'hepcidine par la quantification de sa forme circulante : expression extra-hépatique dans l'obésité : discordance entre régulation systémique et expression locale dans la maladie de Gaucher. : protection vis-à-vis de la surcharge dans l'hémolyse." Thesis, Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCC179.

Full text
Abstract:
L’homéostasie du fer est régulée par l’hepcidine, peptide hyposidérémiant d’origine essentiellement hépatique, qui agit par inhibition de l’absorption intestinale du fer et de son recyclage par les macrophages. Ce travail propose de mettre en évidence l’intérêt d’une approche du rôle et de la régulation de l’hepcidine en pathologie, à partir de sa quantification dans la circulation. Après une mise point du dosage par spectrométrie de masse en tandem et une validation dans des modèles pathologiques chez l’homme et la souris, nous avons étudié les anomalies du métabolisme du fer dans plusieurs p
APA, Harvard, Vancouver, ISO, and other styles
44

Vieillevoye, Maud. "Role and expression of transferrin receptor 2 in erythropoiesis." Thesis, Paris 5, 2013. http://www.theses.fr/2013PA05S020.

Full text
Abstract:
L’érythropoïèse est le processus de différentiation d’un progéniteur érythroïde multipotent en globules rouges. La différentiation érythroïde est essentiellement contrôlée par le récepteur à l’érythropoïétine (EPOR). Nous avons montré que le récepteur à la transferrine de type 2 (TFR2) est un membre important du complexe formé par l’EPOR. Le TFR2 présente, comme l’EPOR une expression restreinte qui dépend du type cellulaire. Ainsi son expression n’a pu être détectée que dans le foie, l’érythron et l’intestin grêle. Le rôle du TFR2 a été exploré dans les hépatocytes et il a été montré qu’il jou
APA, Harvard, Vancouver, ISO, and other styles
45

Diniz, Wellison Jarles da Silva. "Expressão gênica diferencial relacionada ao conteúdo de ferro no músculo em animais nelore." Universidade Federal de São Carlos, 2015. https://repositorio.ufscar.br/handle/ufscar/7665.

Full text
Abstract:
Submitted by Izabel Franco (izabel-franco@ufscar.br) on 2016-09-27T20:41:15Z No. of bitstreams: 1 DissWJSD.pdf: 2131217 bytes, checksum: 65c3deee90f5da124b4a13c80563af29 (MD5)<br>Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-10-04T18:45:59Z (GMT) No. of bitstreams: 1 DissWJSD.pdf: 2131217 bytes, checksum: 65c3deee90f5da124b4a13c80563af29 (MD5)<br>Approved for entry into archive by Marina Freitas (marinapf@ufscar.br) on 2016-10-04T18:46:07Z (GMT) No. of bitstreams: 1 DissWJSD.pdf: 2131217 bytes, checksum: 65c3deee90f5da124b4a13c80563af29 (MD5)<br>Made availa
APA, Harvard, Vancouver, ISO, and other styles
46

Cheng, Qi. "Studies in the expression and function of Klebsiella pneumoniae nitrogenase iron protein in the chloroplast of the eukaryotic unicellular green algae - Chlamydomonas reinhardtii." Thesis, University of East Anglia, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302041.

Full text
APA, Harvard, Vancouver, ISO, and other styles
47

Sadeghi, Abbas. "Gene Expression in Two Cyanobacteria, Freshwater Synechococcus sp. PCC 7942 and Oceanic Synechococcus sp. WH 7803, in response to ammonium, nitrate or iron." PDXScholar, 1998. https://pdxscholar.library.pdx.edu/open_access_etds/74.

Full text
Abstract:
The transcriptional response of freshwater Synechococcus sp. PCC 7942 and oceanic Synechococcus sp. WH 7803 to ammonium, nitrate or iron was studied in single or multiple factor limited cultures. Both strains showed maximum production of NiR mRNA when grown in nitrate-containing media. When grown in ammonium-containing medium, they did not show any signal for NiR mRNA synthesis. The influence on the transcription of NiR mRNA by iron as sole limiting nutrient was also evaluated. Iron increased the NiR mRNA whether or not the positive effect of nitrate was already present. The hybridization sign
APA, Harvard, Vancouver, ISO, and other styles
48

Mai, Hans-Jörg [Verfasser], and Petra [Akademischer Betreuer] Bauer. "Analysis of differential protein and gene expression in Arabidopsis thaliana depending on iron supply and the abundance of the central iron uptake regulator FIT (Fer-like Iron Deficiency-induced Transcription Factor) and investigations on possible post-translational modifications of FIT / Hans-Jörg Mai. Betreuer: Petra Bauer." Saarbrücken : Saarländische Universitäts- und Landesbibliothek, 2014. http://d-nb.info/1109790228/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
49

Souza, Janaina Sena de. "Efeito da suplementação e restrição de ferro (Fe2+) na regulação da expressão gênica e protéica da mioglobina (Mb), em músculo esquelético e cardíaco de ratos." Universidade de São Paulo, 2010. http://www.teses.usp.br/teses/disponiveis/42/42137/tde-20052010-132323/.

Full text
Abstract:
O ferro (Fe) é um oligoelemento capaz de aceitar e doar elétrons. Tal propriedade o torna extremamente útil em diversos componentes importantes ao bom funcionamento do organismo e da célula. O Fe está associado a algumas proteínas, está presente em citocromos, em moléculas que se ligam ao oxigênio (hemoglobina e mioglobina) e em uma grande variedade de enzimas. O aumento e a diminuição da sua oferta levam a alterações na expressão de RNAs mensageiros e proteínas responsáveis pela sua própria homeostase. Sabe-se que a expressão de vários genes envolvidos no metabolismo do Fe é regulada pós-tran
APA, Harvard, Vancouver, ISO, and other styles
50

Snyder, William E. "Construction of a hybrid vector which allows for regulation of expression of cloned genes in anacystis nidulans R2 by controlling the iron content of the growth medium." Virtual Press, 1989. http://liblink.bsu.edu/uhtbin/catkey/560278.

Full text
Abstract:
A hybrid vector, pANIC1, was to be constructed which was capable of regulating expression of cloned genes in both Escherichia coli and Anacystis nidulans R2 by controlling the iron content of the growth medium. Plasmid pANIC1 would have origins of replication for E. coli and A. nidulans R2, and a marker gene conferring ampicillin resistance. It would also contain the promoter for the irpA gene which is active only in low iron growth conditions.The first two stages of the construction were successfully completed, but unfortunately the final construction proved to be unstable. Recent information
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!