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Dissertations / Theses on the topic 'Tritici'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Collin, François. "The tolerance of wheat (Triticum aestivum L.) to Septori tritici blotch." Thesis, University of Nottingham, 2018. http://eprints.nottingham.ac.uk/49156/.

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The Septoria tritici blotch disease (STB, pathogen Zymoseptoria tritici) is the most damaging foliar infection of wheat crops in Europe. Disease management strategies include cultivar resistance, disease escape strategy and fungicides. However, these strategies have failed to provide a complete protection of wheat crops. The STB tolerance is a complementary approach which aims to maintain yield in the presence of the symptoms. The tolerance of STB relies on plant physiology and source/sink balance: the sink demand (the grain growth) must be satisfied in spite of reduced source availability (ph

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2

Marques, Leandro Nascimento. "Fertilizante foliar em associação com fungicida em trigo." Universidade Federal de Santa Maria, 2014. http://repositorio.ufsm.br/handle/1/5110.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The Chemical control of diseases is the most used practice in wheat. The increase in mineral nutrition with foliar fertilizers has been a promising alternative for the plant resistance against leaf diseases. However, foliar fertilizers have been applied in association with fungicides and can change the performance of the fungicide on diseases control. This study aimed to evaluate the applicability of foliar fertilizer in combination with azoxystrobin + cyproconazole fungicide in wheat, based on biochemical, physiological , nutritio

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3

Jordan, Faron. "Strobilurin resistance in Septoria tritici." Thesis, University of Nottingham, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.478958.

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4

Nashaat, N. I. "Resistance mechanisms to Erysiphe graminis f.sp. tritici in Triticum timopheevii and a hexaploid derivative." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371772.

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5

Ali, Solaf Jawhar. "Investigating secondary metabolism in Zymoseptoria tritici." Thesis, University of Bristol, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.687598.

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One of the most serious fungal diseases of wheat is Septoria tritici Blotch caused by Zymoseptoria tritici. This disease is typified by an asymptomatic latent phase, followed by a rapid onset on host-cell necrosis. There has long been debate about whether the necrosis is due to production of secondary metabolite toxins or other effects of the fungus such as use of small protein effectors thereby providing nutrients for fungal growth. Secondary metabolites are mainly classified into polyketides (PKs), non-ribosomal peptides (NRPs), alkaloids and terpenes. Genome analysis of Z. tritici identifie

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6

Kankwatsa, Peace. "Genetic Studies of Rust Resistance in the Triticum spp., and Puccinia graminis f. sp. tritici Pathosystem." Thesis, The University of Sydney, 2016. http://hdl.handle.net/2123/15805.

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The challenge posed by rapidly changing wheat rust pathogens in both pathogenicity and environmental adaptation calls for the application of advanced techniques, so that efforts to breed for durable disease resistance can be sped up. This study was carried out to examine genetic variability among Australian pathotypes of Puccinia graminis f. sp. tritici (Pgt), and to identify leaf rust, stem rust and stripe rust resistance genes in Africa wheat germplasm and spring wheat landraces. Phenotypic and genotypic analysis of Pgt isolates representing two putative clonal lineages determined that patho

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7

Aung, Theingi Soe Taing. "Molecular polymorphism and virulence in Pyrenophora tritici-repentis." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp05/MQ62687.pdf.

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8

Pijls, C. F. N. R. M. J. "Population genetics of fungicide resistance in Septoria tritici." Thesis, University of Reading, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.308103.

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9

Kock, Appelgren Petra S. "Investigating disease tolerance to Zymoseptoria tritici in wheat." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/41161/.

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Disease tolerance is defined as the ability to maintain grain yield in the presence of disease and could be a potential defence mechanism to be incorporated into breeding programmes. It is an attractive goal, as disease tolerance has the potential to be a broad-spectrum, durable defence mechanism while exerting little selection pressure on pathogen populations. Relatively little is known about how disease tolerance is conferred, but most of the hypotheses suggest resource capture and resource-use traits such as large green canopy area, increased light extinction coefficient and a high source t

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10

Sidhu, Yaadwinder Singh. "Molecular tools for functional genomic analyses of the stealth pathogenesis of wheat by Zymoseptoria tritici." Thesis, University of Exeter, 2015. http://hdl.handle.net/10871/20219.

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Zymoseptoria tritici is an ascomycete fungus that causes Septoria tritici leaf blotch disease, which is one of the most devastating diseases of wheat. The lack of molecular tools has withheld functional genomics and consequently has left extensive gaps in the knowledge of the biology of infection by Z. tritici. The current research was conducted to develop molecular tools in order to facilitate forward and reserves genetic screens in Z. tritici. These tools include an optimised genetic manipulation protocol, the Z. tritici strains that provide high frequency targeted genome manipulations, a st

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11

Reges, Juliana Teodora de Assis. "Biologia e estrutura genética de populações do patógeno da brusone do trigo no centro-sul do Brasil : Pyricularia pennisetigena e P. zingibericola de gramíneas invasoras infectam braquiária, cevada e trigo: Estrutura genética de populações contemporâneas do patógeno da brusone do trigo (Pyricularia graminis-tritici sp. nov.) no centro-sul do Brasil /." Botucatu, 2016. http://hdl.handle.net/11449/144456.

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Orientador: Paulo Cezar Ceresini<br>Resumo: Na primeira parte de nosso estudo descrevemos a associação de Pyricularia pennisetigena e P. zingibericola a gramíneas invasoras de áreas de trigo no centro-sul do Brasil. Desconhece-se, entretanto, qual o potencial de P. pennisetigena e P. zingibericola como patógenos de poáceas de interesse econômico para a agricultura brasileira. Dessa forma, objetivamos caracterizar o espectro de patogenicidade de P. pennisetigena e P. zingibericola a braquiária, cevada e trigo e compará-lo com aP. grisea e com a espécie até até recentemente descrita como P. oryz

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12

Ahmadi, Firouzabad Abdolhadi. "Introgression of resistance to powdery mildew (Erysiphe graminis f.sp. tritici) from alien species into bread wheat (Triticum aestivum)." Thesis, University of Newcastle Upon Tyne, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.340688.

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13

Zurn, Jason Daniel. "Characterization and Identification of Genetic Resistance to Puccinia Graminis F. Sp. Tritici in Triticum Aestivum and Hordeum Vulgare." Diss., North Dakota State University, 2015. http://hdl.handle.net/10365/25236.

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Wheat stem rust, caused by Puccinia graminis f. sp. tritici (Pgt), is a major threat to wheat (Triticum aestivum) and barley (Hordeum vulgare) production. The emergence of the highly virulent Ug99-lineage stem rust races has stimulated research toward the identification and characterization of rust resistance genes in wheat and barley. Populations were developed to elucidate the inheritance and location of Pgt resistance genes in the common wheat landraces PI 626573 and PI 362698. The resistance present in PI 626573 was shown to be conferred by a single dominant gene (SrWLR) and was mapped to

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14

Schäuble, Andreas. "Septoria Tritici - Bedeutung, Biologie und Bekämpfung des Erregers der Weizenblattdürre." [S.l. : s.n.], 2005. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB11759389.

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15

Vidal, Tiphaine. "Intérêt de la diversité architecturale des plantes cultivées pour limiter la progression épidémique de maladies foliaires à dispersion pluviale : cas de la septoriose au sein d'associations variétales de blé." Thesis, Université Paris-Saclay (ComUE), 2017. http://www.theses.fr/2017SACLA012/document.

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La culture d’associations de variétés sensibles et résistantes au sein d’une même parcelle permet de réduire la propagation des maladies fongiques foliaires aériennes. L’architecture des plantes a un impact sur la dispersion de spores et le microclimat, mais est rarement prise en compte dans la conception des associations. L’objectif de cette thèse était de comprendre le rôle joué par l’architecture dans des associations de variétés différant par leur niveau de résistance à une maladie dispersée par éclaboussement, la septoriose du blé, causée par Zymoseptoria tritici. Une expérimentation en c

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16

Henze, Matthias. "Entwicklung einer anbauparameter- und witterungsabhängigen Befallsprognose von Septoria tritici." Göttingen Cuvillier, 2007. http://d-nb.info/987969234/04.

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17

Arraiano, Lia Susana. "Genetics of resistance of wheat to septoria tritici blotch." Thesis, University of East Anglia, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.390648.

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The research described in this týesis was focused on achieving a better understanding of the genetics of resistance of wheat to septoria tritici blotch (Mycosphaerella graminicola). Firstly, a detached leaf technique that could be a useful complement to field trials and an alternative to whole seedling assays in assessing cultivar resistance and investigating the genetics of the host-pathogen interaction was developed. Sets of inter-varietal substitution lines, developed at the John Innes Centre, involving known and possible sources of resistance to septoria tritici blotch, were tested with se

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18

Dooley, Hilda. "Fungicide-resistance management tactics : impacts on Zymoseptoria tritici populations." Thesis, University of Reading, 2015. http://centaur.reading.ac.uk/49314/.

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Azoles and Succinate Dehydrogenase Inhibitors (SDHIs) are the main fungicides available for septoria tritici blotch control, causal agent Zymoseptoria tritici. Decline in azole sensitivity, in combination with European legislation, poses a threat to wheat production in Ireland. Azole fungicides select CYP51 mutations differentially; it was hypothesised that using combinations of azoles could be an effective anti-resistance tool. Naturally inoculated field experiments were carried out in order to understand the impacts of using combinations of azoles, epoxiconazole and metconazole, on azole sen

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19

Marchegiani, Elisabetta. "The MAPK Slt2 regulates development and pathogenicity in Zymoseptoria tritici." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112013.

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Zymoseptoria tritici est l'un des dix plus importants champignons pathogènes des plantes. Son impact économique sur la production de blé et ses caractéristiques biologiques (dimorphisme levure-hyphae, hémi-biotrophie, populations sexuées et diversifiées) fait de Z. tritici un organisme unique parmi les champignons pathogènes des plantes. Au cours des dix dernières années, il a suscité un intérêt croissant de la communauté scientifique conduisant au développement d'outils génomiques et génétiques. Ces efforts ont permis de mieux comprendre les mécanismes impliqués dans sa pathogénie et son évol

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20

Tayeh, Christine. "Induction de résistances chez le blé (Triticum aestivum L.) lors d’une interaction compatible avec Blumeria graminis (DC. E.O Speer) : mécanismes mis en jeu après applications de tréhalose et d’heptanoyl d’acide licylique, dérivé fonctionnalisé de l’acide salicylique." Thesis, Littoral, 2012. http://www.theses.fr/2012DUNK0521.

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L’utilisation de molécules stimulatrices des défenses des plantes (SDP), également appelées inducteurs de résistance, constitue une alternative potentielle aux traitements fongicides conventionnels pour combattre les maladies dues à des champignons phytopathogènes. Trois SDPs, le tréhalose (TR), l’acide salicylique (SA) et l’heptanoyl d’acide salicylique (HSA), un dérivé fonctionnel du SA, protègent le blé (Triticum aestivum L.) contre l’oïdium (Blumeria graminis f.sp. tritici), lorsqu’ils sont utilisés de façon préventive. La protection obtenue n’est pas liée à un effet fongistatique direct s

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21

Muchembled, Jérôme. "Le couple Triticum aestivum/Erysiphe (= Blumeria) graminis f. Sp. Tritici : induction de la résistance acquise, incidences sur la composition lipidique." Littoral, 1999. http://www.theses.fr/1999DUNK0027.

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L'oïdium du blé est une maladie cryptogamique causée par Erysiphe graminis f. Sp. Tritici (Egt). L’infection des feuilles conduit à des pertes de rendement en grains relativement important. La lutte contre cet agent pathogène passe par l’épandage de fongicides, ce qui peut conduire à des problèmes environnementaux. Nous avons recherché des substances biologiques ou des composés chimiques non toxiques capables d’éliciter les défenses naturelles de la plante. L’association de ces substances avec des fongicides pourrait permettre d’en diminuer les doses pour une protection identique. Après la mis

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22

Tiley, Anna Mystica Mendez. "Investigating asexual sporulation in Zymoseptoria tritici, a fungal pathogen of wheat." Thesis, University of Bristol, 2016. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.715767.

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23

Habig, Michael [Verfasser]. "Function and transmission of accessory chromosomes in Zymoseptoria tritici / Michael Habig." Kiel : Universitätsbibliothek Kiel, 2019. http://d-nb.info/1177033399/34.

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24

Rawlinson, Catherine. "Characterising the specialised metabolism of the wheat Pyrenophora tritici-repentis interaction." Thesis, Curtin University, 2020. http://hdl.handle.net/20.500.11937/82846.

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The necrotrophic fungal pathogen Pyrenophora tritici-repentis (Ptr) causes the economically damaging tan spot disease of wheat. The project investigates the specialised metabolites (SMs) utilised by the pathogen for interaction with the host. This thesis describes the first characterised biosynthetic gene cluster in Ptr, the first report of an amide containing phthalide and the first structurally characterised small molecule necrotrophic effector. Characterisation of host-pathogen holds significant potential in developing control strategies for tan spot disease.

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25

Ortelli, Silvano. "Zusammenhang zwischen der Resistenz gegen Braunrost (Puccinia recondita Rob. ex Desm. f. sp. tritici) und der Ertragsbildung bei Winterweizen (Triticum aestivum L.) /." [S.l.] : [s.n.], 1994. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10789.

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26

Strelkov, Stephen E. "Purification and mode of action of PTR, Pyrenophora tritici-repentis, chlorosis toxin." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp04/mq23516.pdf.

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27

Janakiraman, Vasantharajan. "Characterization of the lignification response in the wheat-Pyrenophora tritici-repentis system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2001. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq62642.pdf.

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28

Mann, Ruth Louise. "Suppression of Septoria tritici by foliar applied potassium chloride on winter wheat." Thesis, University of Wolverhampton, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322183.

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The effect of foliar applied potassium chloride on Septoria tritici on winter wheat was quantified and possible modes of action investigated by in vitro, glasshouse, controlled environment and field experiments between 1996 and 1999. In vitro experiments showed that as the concentration of potassium chloride increased, mycelial growth and germination of conidia decreased (EO sos of 1.36M and 0.7M, respectively). One glasshouse and two field experiments showed a significant reduction in the leaf area affected by S. trttict after foliar application of potassium chloride compared to untreated con

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29

Möller, Mareike [Verfasser]. "Epigenome and chromosome dynamics in the fungal pathogen Zymoseptoria tritici / Mareike Möller." Kiel : Universitätsbibliothek Kiel, 2018. http://d-nb.info/1163603767/34.

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30

Noble, Rosalind Christina. "Identification of LysM effector proteins in the wheat pathogenic fungus, Zymoseptoria tritici." Thesis, University of Bristol, 2015. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.701972.

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Zymoseptoria tritici is an important foliar pathogen of Triticum aestivum (cultivated wheat). Control of Septoria tritici blotch disease in the field, caused by Z. tritici, is mainly facilitated by fungicidal chemical applications and planting of wheat breeds containing a combination of Septoria resistance loci (STB loci). Currently, molecular mechanisms underlying STB trait resistance are not fully understood and efficacy and availability of chemical fungicides is limited. In order to improve control of this disease in the field requires greater understanding of the processes underlying succe

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31

Ennaïfar, Sabah. "Protection intégrée contre le piétin-échaudage (Gaeumannomyces graminis tritici) du blé d'hiver." Rennes, Agrocampus, 2006. http://www.theses.fr/2006NSARA045.

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Gaeumannomyces graminis var. Tritici est un champignon tellurique pathogène responsable du piétin-échaudage des céréales à paille qui peut être à l'origine de pertes de rendement importantes. Le développement de ce champignon dépend de nombreux facteurs liés à la succession de culture, àl'itinéraire technique, au climat et au sol. L'agriculteur peut contrôler le piétin échaudage et réduire son impact sur le rendement en modifiant le système de clture (succession culturale, semis tardif, fertilisation azotée, traitement fongicide etc. ). A ce jour aucun outil d'aide à la décision n'a été dévelo

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32

Sari, Bruno Giacomini. "Tamanho de amostra para a avaliação de doenças em experimentos com arroz e trigo." Universidade Federal de Santa Maria, 2015. http://repositorio.ufsm.br/handle/1/5142.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>The blast and the yellow leaf spot are the major rice and wheat, respectively, both are commonly found as for its destructive potential. Because of this, proving the efficiency of control methods through experiences is of paramount importance, since these results will be used as reference for technicians and producers. The precision is related to the choice of suitable design (local control), the number of repetitions, the sample size in the field, among others. In the case of control experiments involving fungicides, which is the

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33

Al-Hamar, Bader. "The effects of biotic and environmental factors on host-pathogen differential interactions in wheat- Mycosphaerella graminicola pathosystem." Thesis, University of Reading, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.325133.

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34

Payne, Andrew Charles. "Molecular identification and characterisation of novel targets in Mycosphaerella graminicola, and the development of screening technologies for fungicide discovery." Thesis, University of Bristol, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.326693.

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35

Schotanus, Klaas [Verfasser], and Eva H. [Akademischer Betreuer] Stukenbrock. "Epigenetics of the plant pathogen Zymoseptoria tritici / Klaas Schotanus. Betreuer: Eva H. Stukenbrock." Marburg : Philipps-Universität Marburg, 2015. http://d-nb.info/107686564X/34.

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36

Hopkinson, Sarah J. "Puccinia graminis f.sp. tritici, race c17 : physiology of uredospore germination and germtube differentiation." Thesis, University of British Columbia, 1988. http://hdl.handle.net/2429/27957.

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Germinating uredospores of race C17 of Puccinia graminis f.sp. tritici form characteristic infection structures (appressorium, infection peg, vesicle, infection hypha) in response to a 1.5 h heat shock at 29° C administered 2 h after germination at 19° C. The proportion of sporelings forming infection structures was augmented by nutrients, n-nonyl alcohol and, an appropriately timed heat shock. The heat shock temperature required to induce maximum differentiation had a very precise optimum which varied slightly for each spore lot. Variations one degree above or below this optimum reduced the p

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37

Toupin, Eymond Donald. "Microscopic examination of the effects of Ptr, Pyrenophora tritici-repentis, ToxA on wheat." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0020/MQ53128.pdf.

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Dodd, Thomas. "The impact of Septoria tritici on the photosynthetic and carbohydrate metabolism of wheat." Thesis, University of Sheffield, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269286.

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Gulart, Caroline Almeida. "INFLUÊNCIA DO ESPECTRO DE GOTAS NO DESEMPENHO DE FUNGICIDAS NA CULTURA DO TRIGO." Universidade Federal de Santa Maria, 2013. http://repositorio.ufsm.br/handle/1/3603.

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Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Leaf rust and leaf spots caused by Bipolaris sorokiniana and Drechslera tritici-repentis, are diseases that dramatically reduce the productivity of wheat. Depending on the difficulty in having cultivars resistant to all diseases, chemical control is an alternative, technically and economically viable. To maximize the residual of fungicides is necessary to optimize the factors related with spray minimizing the losses due to disease incidence. The goal of the work was to determine the influence of the number of drops in the penetrati

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Liu, Sixin. "Molecular marker analysis of adult plant resistance to powdery mildew in common wheat." Diss., Virginia Tech, 1999. http://hdl.handle.net/10919/11236.

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Powdery mildew, caused by Blumeria graminis (DC.) E.O. Speer f. sp. tritici E'm. Marchal (syn. Erysiphe graminis f. sp. tritici), is one of the major diseases of wheat (Triticum aestivum L.) worldwide. The use of cultivars with resistance to powdery mildew is an efficient, economical and environmentally safe way to control powdery mildew. Race-specific resistance has been extensively used in breeding programs; however, it is ephemeral. Adult plant resistance (APR) to powdery mildew is more durable as demonstrated by the cultivar Massey, which has maintained its APR to powdery mildew since i

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Reges, Juliana Teodora de Assis [UNESP]. "Biologia e estrutura genética de populações do patógeno da brusone do trigo no centro-sul do Brasil." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/144456.

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Submitted by JULIANA TEODORA DE ASSIS REGES null (juliana.teodora@bol.com.br) on 2016-10-21T00:48:25Z No. of bitstreams: 1 Reges-Tese-DR.pdf: 2852424 bytes, checksum: e86c4e7420b8cf40a8dcc1e723431082 (MD5)<br>Approved for entry into archive by Juliano Benedito Ferreira (julianoferreira@reitoria.unesp.br) on 2016-10-27T16:48:41Z (GMT) No. of bitstreams: 1 reges_jta_dr_jabo.pdf: 2852424 bytes, checksum: e86c4e7420b8cf40a8dcc1e723431082 (MD5)<br>Made available in DSpace on 2016-10-27T16:48:41Z (GMT). No. of bitstreams: 1 reges_jta_dr_jabo.pdf: 2852424 bytes, checksum: e86c4e7420b8cf40a8dcc1e7

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Oliveira, Gustavo Migliorini de. "Momentos, doses e taxas de aplicação de fungicida no controle da ferrugem da folha (Puccinia triticina) e mancha amarela (Pyrenophora tritici repentis) do trigo." Universidade Estadual de Londrina. Centro de Ciências Agrárias. Programa de Pós-Graduação em Agronomia, 2012. http://www.bibliotecadigital.uel.br/document/?code=vtls000172097.

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O controle químico tem importante papel na triticultura brasileira, decorrente principalmente das doenças que assolam a cultura. Todavia, estudos relativos ao momento e tecnologia de aplicação, especialmente ligadas a taxa de aplicação e dose de fungicida, não são uma constante no contexto atual do manejo das enfermidades da cultura. Baseado nisto, conduziu-se três experimentos a fim de estudar momentos, doses e taxas de aplicação de fungicida para o controle da ferrugem da folha (P. triticina) e mancha amarela do trigo (P .triti-repentis). Os experimentos foram conduzidos na Universidade Esta

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43

Poppe, Stephan [Verfasser], and Eva [Akademischer Betreuer] Stukenbrock. "Host specialization in the fungal plant pathogen Zymoseptoria tritici / Stephan Poppe. Betreuer: Eva Stukenbrock." Marburg : Philipps-Universität Marburg, 2015. http://d-nb.info/1068315555/34.

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Engelmann, Uta [Verfasser]. "Kartierung und züchterische Nutzung von Resistenzen gegen die Weizenblattdürre (Pyrenophora tritici-repentis) / Uta Engelmann." Gießen : Universitätsbibliothek, 2014. http://d-nb.info/1068590882/34.

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Wake, Katherine Ann. "Host specificity and saponin resistance in oat-attacking isolates of Gaeumannomyces graminis var. tritici." Thesis, University of East Anglia, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301960.

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Kay, William Tudor. "Novel insights into the asexual life-cycle of the wheat-leaf pathogen Zymoseptoria tritici." Thesis, University of Exeter, 2017. http://hdl.handle.net/10871/31538.

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Zymoseptoria tritici, the causal agent of Septoria tritici blotch (STB), is the most economically important pathogen of wheat in temperate climates. EU spending on the control of STB is estimated at more than € 1.3 billion per annum, even when tolerant cultivars are used. This thesis comprises 5 data chapters each looking to ascertain reasons for the success of Z. tritici. Using mainly in vitro methods combined with confocal microscopy, this thesis explores asexual spore submergence in rain, epiphytic development, the potential triggers for pycnidiation, low-nutrient ex planta survival, and so

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Kramer, Bastian. "Identifizierung und Charakterisierung neuer Pathogenitätsfaktoren in einem MAPK-Signalweg des weizenpathogenen Pilzes Mycosphaerella graminicola." Duisburg Köln WiKu, 2009. http://d-nb.info/992415756/04.

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LE, BOULC'H DELETRE VERONIQUE. "Evolution de la resistance a l'oidium (erysiphe graminis f. Sp. Tritici) dans des populations composites de ble tendre (triticum aestivum l. ) menees en gestion dynamique." Paris 11, 1994. http://www.theses.fr/1994PA112434.

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Dans le cadre d'un programme de gestion dynamique des ressources genetiques, mene en france sur le ble tendre depuis 1984, les populations de deux pools genetiques preferentiellement autogames et d'un pool conduit en allogamie sont multipliees chaque annee dans un reseau multilocal, essentiellement sous l'influence du milieu naturel. Au cours des huit annees de multiplication, les genes de resistance presents dans les populations composites initiales se sont maintenus. Les evolutions des frequences des genes de resistance specifique et de la resistance adulte mesuree au champ ont ete principal

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Schweizer, Patrick. "Induced local resistance of winter wheat (Triticum aestivum L.) to Erysiphe graminis f. sp. tritici : cDNA cloning and in vitro transcription of induced wheat mRNA /." [S.l : s.n.], 1988. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.

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Tayeh, Christine. "Induction de résistances chez le blé (Triticum aestivum L.) lors d’une interaction compatible avec Blumeria graminis (DC. E.O Speer) : mécanismes mis en jeu après applications de tréhalose et d’heptanoyl d’acide licylique, dérivé fonctionnalisé de l’acide salicylique." Electronic Thesis or Diss., Littoral, 2012. http://www.theses.fr/2012DUNK0521.

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L’utilisation de molécules stimulatrices des défenses des plantes (SDP), également appelées inducteurs de résistance, constitue une alternative potentielle aux traitements fongicides conventionnels pour combattre les maladies dues à des champignons phytopathogènes. Trois SDPs, le tréhalose (TR), l’acide salicylique (SA) et l’heptanoyl d’acide salicylique (HSA), un dérivé fonctionnel du SA, protègent le blé (Triticum aestivum L.) contre l’oïdium (Blumeria graminis f.sp. tritici), lorsqu’ils sont utilisés de façon préventive. La protection obtenue n’est pas liée à un effet fongistatique direct s

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