Spelling suggestions: "subject:"daphnia""
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Daphne Sudden Death Syndrome (DSDS): pathogen identification, characterization and screening for disease resistanceNoshad, David 05 1900 (has links)
Daphne is a widely dispersed genus with large variation in morphology, native habitats, and use. Unfortunately, broader acceptance of Daphne in the ornamental trade has been limited due to Daphne Sudden Death Syndrome (DSDS), a disease that kills the plant without warning. The results of this research identified Thielaviopsis basicola (Berk. etBr.) Ferr. as the causal agent for this disease. Pure cultures of the pathogen were developed and used in a germ plasm screen.
To evaluate Daphne germ plasm in vitro, species-specific protocols were developed that alleviated two common problems in Daphne micropropagation, browning and hyperhydricity. Optimizing the concentrations of both PGRs and charcoal was able to control these problems. Selected species were evaluated for resistance against Thielavipsis basicola in both, in vivo and in vitro, conditions. The results of both methods displayed a strong correlation and indicated significant differences among the taxa. However, there were differences in disease progression rates. Typically, the in vitro challenge produced a comparable level of disease as the in vivo challenge but in two to three weeks less time. Across both screening methods, the most resistant species evaluated were D. tangutica and D. retusa, while D. cneroum was the most susceptible.
Based on ITS sequences, phylogenetic relationships among selected Daphne species were established and associated with their resistance against T basicola. The phylogeny indicated that Daphne is possibly a monophyletic group. However, placement of D.genkwa remained problematic. The analysis of ITS sequences data resulted in a parsimony consensus tree with two well-supported major clades and one Glade with less support. In general, the evolutionary tree for resistance, inferred from the phylogenetic data and the results of the screening project, indicate that resistance is a derived character and that plants recently evolved this ability.
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La fable de Daphné. Essai sur un type de métamorphose végétale dans la littérature et dans les arts jusqu'à la fin du XVIIe siècle.Giraud, Yves F. A. January 1968 (has links)
Issued also as thesis, Basel. / Bibliography: p. [535]-554.
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Daphne Sudden Death Syndrome (DSDS) : pathogen identification, characterization and screening for disease resistanceNoshad, David 05 1900 (has links)
Daphne is a widely dispersed genus with large variation in morphology, native habitats ,and use. Unfortunately, broader acceptance of Daphne in the ornamental trade has been limited due to Daphne Sudden Death Syndrome (DSDS), a disease that kills the plant without warning. The results of this research identified Thielaviopsis basicola (Berk. et Br.) Ferr. as the causal agent for this disease. Pure cultures of the pathogen were developed and used in a germplasm screen.
To evaluate Daphne germplasm in vitro, species-specific protocols were developed that alleviated two common problems in Daphne micropropagation, browning and hyperhydricity. Optimizing the concentrations of both PGRs and charcoal was able to control these problems. Selected species were evaluated for resistance against Thielavipsis basicola in both, in vivo and in vitro, conditions. The results of both methods displayed a strong correlation and indicated significant differences among the taxa. However, there were differences in disease progression rates. Typically, the in vitro challenge produced a comparable level of disease as the in vivo challenge but in two to three weeks less time. Across both screening methods, the most resistant species evaluated were D. tangutica and D. retusa, while D. cneroum was the most susceptible.
Based on ITS sequences, phylogenetic relationships among selected Daphne species were established and associated with their resistance against T basicola. The phylogeny indicated that Daphne is possibly a monophyletic group. However, placement of D. genkwa remained problematic. The analysis of ITS sequences data resulted in a parsimony consensus tree with two well-supported major clades and one Glade with less support. In general, the evolutionary tree for resistance, inferred from the phylogenetic data and the results of the screening project, indicate that resistance is a derived character and that plants recently evolved this ability.
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Daphne Sudden Death Syndrome (DSDS) : pathogen identification, characterization and screening for disease resistanceNoshad, David 05 1900 (has links)
Daphne is a widely dispersed genus with large variation in morphology, native habitats ,and use. Unfortunately, broader acceptance of Daphne in the ornamental trade has been limited due to Daphne Sudden Death Syndrome (DSDS), a disease that kills the plant without warning. The results of this research identified Thielaviopsis basicola (Berk. et Br.) Ferr. as the causal agent for this disease. Pure cultures of the pathogen were developed and used in a germplasm screen.
To evaluate Daphne germplasm in vitro, species-specific protocols were developed that alleviated two common problems in Daphne micropropagation, browning and hyperhydricity. Optimizing the concentrations of both PGRs and charcoal was able to control these problems. Selected species were evaluated for resistance against Thielavipsis basicola in both, in vivo and in vitro, conditions. The results of both methods displayed a strong correlation and indicated significant differences among the taxa. However, there were differences in disease progression rates. Typically, the in vitro challenge produced a comparable level of disease as the in vivo challenge but in two to three weeks less time. Across both screening methods, the most resistant species evaluated were D. tangutica and D. retusa, while D. cneroum was the most susceptible.
Based on ITS sequences, phylogenetic relationships among selected Daphne species were established and associated with their resistance against T basicola. The phylogeny indicated that Daphne is possibly a monophyletic group. However, placement of D. genkwa remained problematic. The analysis of ITS sequences data resulted in a parsimony consensus tree with two well-supported major clades and one Glade with less support. In general, the evolutionary tree for resistance, inferred from the phylogenetic data and the results of the screening project, indicate that resistance is a derived character and that plants recently evolved this ability.
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La fable de Daphné Essai sur un type de métamorphose végétale dans la littérature et dans les arts jusqu'à la fin du XVIIe siècle.Giraud, Yves F. A. January 1968 (has links)
Issued also as thesis, Basel. / Bibliography: p. [535]-554.
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Daphne Sudden Death Syndrome (DSDS) : pathogen identification, characterization and screening for disease resistanceNoshad, David 05 1900 (has links)
Daphne is a widely dispersed genus with large variation in morphology, native habitats ,and use. Unfortunately, broader acceptance of Daphne in the ornamental trade has been limited due to Daphne Sudden Death Syndrome (DSDS), a disease that kills the plant without warning. The results of this research identified Thielaviopsis basicola (Berk. et Br.) Ferr. as the causal agent for this disease. Pure cultures of the pathogen were developed and used in a germplasm screen.
To evaluate Daphne germplasm in vitro, species-specific protocols were developed that alleviated two common problems in Daphne micropropagation, browning and hyperhydricity. Optimizing the concentrations of both PGRs and charcoal was able to control these problems. Selected species were evaluated for resistance against Thielavipsis basicola in both, in vivo and in vitro, conditions. The results of both methods displayed a strong correlation and indicated significant differences among the taxa. However, there were differences in disease progression rates. Typically, the in vitro challenge produced a comparable level of disease as the in vivo challenge but in two to three weeks less time. Across both screening methods, the most resistant species evaluated were D. tangutica and D. retusa, while D. cneroum was the most susceptible.
Based on ITS sequences, phylogenetic relationships among selected Daphne species were established and associated with their resistance against T basicola. The phylogeny indicated that Daphne is possibly a monophyletic group. However, placement of D. genkwa remained problematic. The analysis of ITS sequences data resulted in a parsimony consensus tree with two well-supported major clades and one Glade with less support. In general, the evolutionary tree for resistance, inferred from the phylogenetic data and the results of the screening project, indicate that resistance is a derived character and that plants recently evolved this ability. / Land and Food Systems, Faculty of / Graduate
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South African panorama: the novels of Daphne RookeCoetzee, Paulette June January 1998 (has links)
This thesis covers Daphne Rooke's eight published "South African" novels: A Grove of Fever Trees, Mittee, Ratoons, Wizards' Country, A Lover for Estelle, The Greyling, Diamond Jo, and Margaretha de la Porte. It supports the recent revival of critical interest in Rooke, and argues for the continuing relevance of her work in post-apartheid South Africa. This study also broadens the scope of recent Rooke research by including lesser known works like The Greyling and Margaretha de la Porte in its analysis. Recent criticism has focused on Rooke's unusual blend of romance and realism. The first three chapters concentrate more on "realism", emphasising the depth and extent of Rooke's engagement with serious social issues. The novels are examined in terms of their handling of the themes of class (chapter one), race (chapter two) and gender (chapter three). The concluding chapter shifts in focus to "romance" and examines the question of generic_identity -- touching on Rooke's gothic, magical realist and "popular" qualities -within a consideration of the particular "South African-ness" of her work.
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Le foglie sparse del mito di Dafne nel Canzoniere di PetrarcaMoudarres, Andrea. January 2005 (has links)
Thesis (M.A.)--University of Notre Dame, 2005. / Thesis directed by Theodore J. Cachey for the Department of Romance Languages and Literatures. "April 2005." Includes bibliographical references (leaves 63-64).
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Ett multipelt auteurskap? : En fallstudie av Rebecca (1940) / A multiple auteurship? : A casestudy of Rebecca (1940)Westberg, Nathalie January 2018 (has links)
Den här uppsatsen behandlar huruvida det finns ett multipelt auteurskap och om termen auteur kan appliceras på andra filmskapare än regissören. Utifrån syftet ställdes sedan två frågor: Vilken roll har manusförfattaren jämfört med regissören när det kommer till auteurskap över en film? Samt frågan om på vilket sätt ett multipelt auteurskap skulle kunna formuleras? För att undersöka dessa frågor användes sedan en komparativ metod där romanen Rebecca jämförs med dess filmiska adaptation samt filmens manus. Baserat i fallstudien av Rebecca (1940) diskuteras sedan regissörens roll gentemot filmmanusförfattarens och författarens, samt vad dessa roller får för konsekvenser i termer av auteurskap. / This essay examines whether there is a multiple auteurship and if the term auteur can be applied to other filmmakers than the director. Based on this purpose, two questions where formulated: What is the role of the screenplay-writer compared to the director’s when it comes to auteurship over a film? The paper also examines the question of how a possible multiple auteurship could be formulated. To examine these questions, a comparative method was used in which the novel Rebecca was compared with its cinematic adaptation, as well as the film's screenplay. Based on the case study of Rebecca (1940), the director’s role is thereafter discussed compared to the screenplay-writers and the authors roles, as well as what the consequences of these roles have in terms of auteurship.
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Resurrection, renaissance, rebirth : religion, psychology and politics in the life and works of Daphne du MaurierHeeley, Melanie J. January 2007 (has links)
This thesis looks at the life and works of Daphne du Maurier in the context of the inter-related ideas of religion, psychology and politics. Throughout, I use a methodology based on the concept of the palimpsest. But I also use theory provided by Jung, Plato and Nietzsche – all of which were known to du Maurier to a greater or lesser degree. Other theory is used occasionally, but only as it suggests itself in the context under consideration. The ideas of ‘Resurrection, Renaissance and Rebirth' give the thesis a structure and a theme. The interaction of Christianity and Paganism is also examined. Section One, ‘Introduction – Resurrecting Texts/Lives', introduces the idea of the palimpsest. In reality, this is a twice-written document frequently containing a Christian text which is written over a Pagan one, with the Pagan text resurrecting itself over time. In theory, the palimpsest is a textual space where disparate texts collide and collude in an involuted manner. Section Two, ‘Life and Text – Renaissance Inspired Men', looks at two men who drew their inspiration from the Renaissance as either age or idea - the socialist Victor Gollancz and the conservative Frank Buchman - and to what degree du Maurier interacted with both the people and their conceptual framework. Section Three, ‘Life into Text – Renaissance Men', concerns itself with du Maurier's biographies of two Renaissance brothers, Anthony and Francis Bacon, and how their lives have been read, gnostically, by herself and others, notably The Francis Bacon Society and Nietzsche. Section Four, ‘Spectralised Lives in Text - Rebirthing', examines how the foregoing discussion plays itself out in two of du Maurier's novels, Jamaica Inn (1936) and The Flight of the Falcon (1965). The chapter on Jamaica Inn looks at Celtic Revivalism and how the Celtic gods spectralise the characters of the novel leading to a rebirthing experience for the protagonist Mary Yellan – implicit in this is the concept of the Renaissance-as-idea. The chapter on The Flight of the Falcon shows how the Renaissance-as-age daimonises characters of the twentieth-century. The palimpsest as either a document or a theoretical perspective weaves itself in and out of all my chapters. Section Five, ‘Concluding Remarks', leads to two related conclusions, firstly that du Maurier has been spectralised by the Renaissance, and secondly that du Maurier's life and works, taken together, can be read as an involuted palimpsest.
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