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Dissertations / Theses on the topic 'Rhynchosporium secalis'

Author: Grafiati

Published: 4 June 2021

Last updated: 28 January 2023

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1

Fountaine, James Michael. "Epidemiological studies of Rhynchosporium secalis (leaf blotch of barley)." Thesis, University of Reading, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.424279.

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2

Davidson, J. A. "Rhynchosporium secalis (Oud.) Davis and barley leaf scald in South Australia /." Title page, contents and abstract only, 1992. http://web4.library.adelaide.edu.au/theses/09A/09ad252.pdf.

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3

McCartney, Cliodhna. "Fungicide resistance in Mycosphaerella graminicola and Rhynchosporium secalis in Northern Ireland." Thesis, Queen's University Belfast, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.437472.

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4

Hawkins, Nichola. "Recent evolution of Rhynchosporium secalis populations in response to selection by triazoles." Thesis, University of Reading, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558726.

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Rhynchosporium secalis is a major fungal pathogen of barley. Fungicides, including triazoles and QoIs, play an important part in R. secalis control programmes, but can select for resistance. Reduced triazole sensitivity had been reported in R. secalis, but the mechanism was not known. QoI resistance had not been reported in R. secalis until 2008, when the G 143A substitution in cytochrome b was reported in two R. secalis isolates from France. A high-throughput fungicide sensitivity assay was developed for R. secalis, and isolates were screened for Quinone outside Inhibitor (QoI) and triazole s

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5

Davis, Helena. "Studies of the biology and epidemiology of Rhynchosporium secalis (leaf blotch on barley)." Thesis, University of London, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306936.

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6

Robbertse, Barbara. "Virulence spectrum, molecular characterisation and fungicide sensitivity of the South African Rhynchosporium secalis population." Thesis, Stellenbosch : Stellenbosch University, 2000. http://hdl.handle.net/10019.1/52050.

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Thesis (PhDAgric)--University of Stellenbosch, 2000.<br>ENGLISH ABSTRACT: Barley leaf scald, caused by Rhynchosporium secalis, is the most important disease of barley (Hordeum vulgare) in the Western Cape province of South Africa. The disease was first reported from South Africa in 1937. The present study is the first attempt to characterise the South African R. secalis population. Topics such as pathogenesisrelated proteins, virulence spectra, variability of pathotypes, sources of variation, host resistance, breeding strategies, molecular characterisation and fungicide sensitivity are

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7

Torriani, Stefano. "The mitochondrial genome of the ascomycete Rhynchosporium secalis: DNA sequences, gene composition and phylogenetic analysis." Zurich : ETH Zurich, Switzerland, Phytopathology Group, Institute of Plant Sciences, 2004. http://e-collection.ethbib.ethz.ch/show?type=dipl&nr=157.

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8

Dizkirici, Ayten. "Genetic Diversity Of Scald (rhynchosporium Secalis) Disease Resistant And Sensitive Turkish Barley Seed Sources As Determined With Simple Sequence Repeats." Master's thesis, METU, 2006. http://etd.lib.metu.edu.tr/upload/12607498/index.pdf.

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Scald disease (Rhynchosporium secalis) is one of the major plant diseases causing considerable yield loss in barley (Hordeum vulgare) plantations in Turkey. To develop, scald resistant barley varieties, C.R.I.F.C. of Turkey has a large accumulated collection of barley seed sources in hand, but these samples are difficult to be followed and used in the breeding programs due to lack of genetic studies on them. Thus, the objective of this study was to characterize and fingerprint of eighty barley seed sources, and assess the magnitude and pattern of genetic diversity that could be used to have mo

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9

Mille, Bruno. "La rhynchosporiose de l'orge à Rhynchosporium secalis (Oud. ) DAVIS : élaboration de nouvelles stratégies de lutte, importance relative des différentes sources d'inoculum." Paris 11, 1989. http://www.theses.fr/1989PA112110.

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De nouvelles stratégies de lutte contre la rhynchosporiose de l'orge sont proposées et certaines caractéristiques épidémiologiques de l'agent pathogène Rhynchosporium secalis (Oud. ) Davis, notamment le rôle des semences, précisées en révélant directement la présence du champignon sur ces dernières, ou indirectement lors d'essais au champ. Une première méthode d'analyse, "classique", comprend une désinfection préalable des grains d'orge (éthanol, hypochlorite de sodium et solution antibactérienne et antifongique), avant leur dépôt sur un milieu électif ("orge") et sélectif (terramycine + iprod

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10

Ahmed, Ahmed Abdul-Jawad. "Studies on barley : genetics and breeding for resistance to leaf blotch Rhynchosporum secalis (OUD.) J.J. Davis." Thesis, University of Hull, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.278273.

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11

Johnson, Marcy. "Genotypic analysis of Rhynchosporium secalis pathotypes." 1996. http://hdl.handle.net/1993/19239.

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12

Zaffarano, Pascal L. "Population genetics and phylogeography of the scald pathogen Rhynchosporium secalis /." 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17210.

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13

Davidson, J. A. (Jennifer A. ). "Rhynchosporium secalis (Oud.) Davis and barley leaf scald in South Australia." 1992. http://web4.library.adelaide.edu.au/theses/09A/09ad252.pdf.

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14

Yuill, Shae Brian. "Tagging pathogenicity genes in the interaction of barley and the fungal pathogen, Rhynchosporium secalis." Thesis, 2008. http://hdl.handle.net/2440/95619.

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The purpose of this study was to identify pathogenicity genes in the fungal pathogen of cultivated barley, Rhynchosporium secalis. Pathogenicity genes are described as genes that are critical for the successful invasion and colonisation of the host plant but not necessary for life cycle completion in culture. To identify genes a pool of insertion mutants was generated. Insertional mutants were generated by two methods, restriction enzyme-mediated integration (REMI) and Agrobacterium tumefaciens-mediated transformation (ATMT). A detailed REMI study showed circular pAN7-1 vector produced highe

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15

Zareie, Seyed-Reza. "Analysis of defense responses in the barley-Rhynchosporium secalis pathosystem / by Seyed-Reza Zareie." 2000. http://hdl.handle.net/2440/19869.

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Bibliography: leaves 218-232.<br>232 leaves : ill. (some col.) ; 30 cm.<br>Title page, contents and abstract only. The complete thesis in print form is available from the University Library.<br>This thesis investigates the resistance response of barley towards R. secalis by examining the in vitro interaction between various components of the apoplastic fluid and the fungus.<br>Thesis (Ph.D.)--Adelaide University, Dept. of Applied and Molecular Ecology, 2001

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16

Jabbari, Jafar Sheikh. "Molecular characterisation of differentially expressed genes in the interaction of barley and Rhynchosporium secalis." 2009. http://hdl.handle.net/2440/57718.

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The barley scald pathogen (Rhynchosporium secalis) causes extensive economic losses, not only through lost product and quality, but also due to costs associated with chemical control. Economic and environmental impacts and the emerging resistance to fungicides and dominant resistance genes are reasons to understand molecular defence responses in order to develop new strategies to increase resistance of barley to this pathogen. In most pathosystems, defence gene expression in susceptible or resistant genotypes commonly differs quantitatively. Thus, differentially expressed genes between genotyp

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17

Zareie, Seyed-Reza. "Analysis of defense responses in the barley-Rhynchosporium secalis pathosystem / by Seyed-Reza Zareie." Thesis, 2000. http://hdl.handle.net/2440/19869.

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Bibliography: leaves 218-232.<br>232 leaves : ill. (some col.) ; 30 cm.<br>This thesis investigates the resistance response of barley towards R. secalis by examining the in vitro interaction between various components of the apoplastic fluid and the fungus.<br>Thesis (Ph.D.)--Adelaide University, Dept. of Applied and Molecular Ecology, 2001

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18

Jabbari, Jafar Sheikh. "Molecular characterisation of differentially expressed genes in the interaction of barley and Rhynchosporium secalis." Thesis, 2009. http://hdl.handle.net/2440/57718.

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The barley scald pathogen (Rhynchosporium secalis) causes extensive economic losses, not only through lost product and quality, but also due to costs associated with chemical control. Economic and environmental impacts and the emerging resistance to fungicides and dominant resistance genes are reasons to understand molecular defence responses in order to develop new strategies to increase resistance of barley to this pathogen. In most pathosystems, defence gene expression in susceptible or resistant genotypes commonly differs quantitatively. Thus, differentially expressed genes between genotyp

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19

Hanemann, Anja [Verfasser]. "Fine mapping and marker development for the resistance gene Rrs2 against Rhynchosporium secalis in barley / Anja Hanemann." 2009. http://d-nb.info/999007785/34.

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20

Aguiar, Nuno Filipe Borges. "Tebuconazole and azoxystrobin: understanding the fungicide potential of the combination used in a commercial formulation." Master's thesis, 2021. http://hdl.handle.net/10773/30950.

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Specific information towards each fungicidal active ingredient and its effects on all local organisms, whether they’re pathogens, non-target organisms or crops is still largely lacking. In this study, the potential effects of azoxystrobin, tebuconazole and a commercial formulation with these two active ingredients combined, known as Custodia 320 SC, were tested on two fungal species, Pyrenophora teres and Rhynchosporium secalis, both well known worldwide pathogens responsible for worldwide losses in important crops such as barley and rye. The results indicated significant resistan

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21

Fisk, Scott P. "FR‐H3 : a new QTL to assist in the development of fall-sown barley with superior low temperature tolerance." Thesis, 2011. http://hdl.handle.net/1957/26177.

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Fall-sown barley will be increasingly important in the era of climate change due to higher yield potential and efficient use of water resources. Resistance/tolerance to biotic and abiotic stresses will be critical. Low temperature is an abiotic stress of great importance. Resistance to barley stripe rust (incited by Puccinia striifomis f. sp. hordei) and scald (incited by Rhynchosporium secalis) will be important in higher rainfall areas. Simultaneous gene discovery and breeding will accelerate the development of agronomically relevant germplasm. The role of FR-H1 and FR-H2 in low temperature

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