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The presence of flowers is felt in Catholic architecture, literature, artwork, personal histories and devotional practices. This, however, has not always been the case. The Catholic Church has had a long and tumultuous relationship with flowers, the focus of which has been the subject of considerable scholarship (e.g. Fisher (2011, 2007), Ward (1999), Winston-Allen (1997), Goody (1993), Coats (1970)). What has not been much considered is a phenomenological treatment of Catholic floral experience, and how such experiences have shaped individual and shared understandings of the Catholic faith. This thesis seeks to redress this omission through an exploration of the life of the Polish Catholic mystic, St. Faustina Kowalska (1905-1938), whose mystical experiences with the divine were explicitly mediated and narrated through flowers. Through Faustina’s diary, Divine Mercy in my Soul, we gain access to powerful, and unequivocally Catholic, experiences with flowers which comprise the very centre of her religious convictions. This thesis queries the ways in which flowers have dynamically shaped, and have been shaped by, St. Faustina's relationship with God and Catholic holy figures. To address this question I use the semiotic, phenomenological and hermeneutic approach of Max van Manen. Van Manen uses four elements of lived experience he calls lifeworld existentials, these are: lived space, lived time, lived body and lived relationality. These four categories are applied to St. Faustina’s life as she engages with God spatially, temporally, corporeally and relationally; each reveals the centrality of flowers in her religious experiences. While this thesis focuses on the religio-floral experiences of a particular mystic-saint, its significance lies also in the broader Catholic narrative of which it is a part. Writing about flowers was a transformative medium in Faustina's life and has been historically significant in the lives of many other Catholic saints and mystics who recorded similar experiences. This thesis, in describing the details of St. Faustina’s floral-saturated experiences from her diary, reveals a particularized instance of a paradigmatic Catholic phenomenon whereby flowers provide access to the sacred.

Riche de sources d’inspiration multiples, parfois lointaines, islamiques, chinoises et japonaises, le décor floral de Sèvres présente des formes originales que ces influences ne suffisent pas à expliquer. Sèvres n’avait pas oublié sa propre tradition du XVIIIème siècle. Ses artistes n’étaient pas tous de simples copieurs de motifs.Nous avons découvert qu’il a existé dans la deuxième moitié du XIXème siècle une transformation radicale du décor floral, décidée alors que l’intérêt pour la botanique atteignait son apogée : certains décors créés alors à Sèvres échappèrent à toute classification. Nous avons voulu analyser l’évolution de ces fleurs et savoir d’où provenaient ces formes originales nées à côté de décors plus conformes aux courants artistiques de l’époque.Le bouquet magnifiquement arrangé de fleurs multiples, peint en couleurs de moufle « au naturel », disparaît dès 1857-1858, cédant la place à un simple bouquet d’une seule ou de deux espèces. Lui succède par exemple une organisation en un réseau construit de tiges ou de branches, celles-ci traçant parfois une spirale épousant le galbe d’un vase et encadrant des oiseaux.Ces fleurs dessinées d’après nature seront délibérément proscrites à partir de 1880, l’introduction des émaux incitant à la recherche d’une forme « décorative » au lieu d’être naturelle ou « illusionniste ». A partir de l’examen de plus de trois cents œuvres, et de dessins conservés à la manufacture nationale de Sèvres, nous avons retracé l’itinéraire commun, dépendant des variations de la politique artistique, suivi par ces peintres, et mis en lumière le caractère de chacun. / The Sevres porcelain’s flower design presents an original shape depending on many various inspiration sources so it is difficult to understand it. Sevres doesn’t forget its tradition of the 18th century. Its painters are not simple model copists.We discovered a deliberate transformation of the flower design in the second half of the 19th century when the botanical interest was at its top, and so we understood that the artists of Sevres had created unclassifiable forms, therefore an analysis of these flowers became necessary.The magnificent bouquet of various flowers painted in « petit feu » colours, in the « natural » style disappeared in 1857-1858. The bouquet was made of only one or two species. Stalks or branches were used for example in a spiral with birds in the middle on the vase curve.But after 1880 those natural flowers, with the introduction of the coloured enamels, were banished. The painters were in search of a decorative style, instead of a natural or illusionist one.With more than three hundred pieces, many models and designs, we have drawn the itinerary of those flower painters, depending on the variations of the same art trend, while keeping their own personalities.

Orientador: Odair José Garcia de Almeida / Resumo: Cactaceae constitui um grupo endêmico de plantas do Novo Mundo com exceção de Rhipsalis baccifera. No Brasil, a Mata Atlântica, presente nas regiões Sul, Sudeste e Nordeste, compreende um importante ecossistema para o grupo. Incluído na tribo Cereeae, subfamília Cactoideae, o gênero Cereus Mill. apresenta 48 espécies, na qual, duas têm ocorrência para o estado de São Paulo: Cereus fernambucensis Lem. e Cereus hildmannianus K.Schum. Tendo em vista a importância dos estudos anatômicos e morfológicos para solucionar questões de ordem taxonômica, este estudo analisou de modo comparativo a morfo-anatomia floral de C. fernambucensis e C. hildmannianus. Foram realizados estudos macromorfológicos e histológicos incluindo microscopia de luz e eletrônica de varredura. Os resultados revelaram 67 caracteres morfo-anatômicos, na qual 55 foram semelhantes e 12 diferentes. Foram encontrados 17 caracteres morfológicos (14 semelhantes e 3 diferentes) e 50 caracteres anatômicos (41 semelhanças e 9 diferenças). As duas espécies compartilham a maioria das características estruturais florais. Entretanto, as análises anatômicas revelaram alguns caracteres, que podem ser diagnósticos importantes para separar as duas espécies, sendo eles: o número de estratos do mesofilo no perianto tepaloide, no tubo floral, no filete; a organização do tecido transmissor no estigma e no estilete (canal estilar), o número de estratos celulares do tecido receptacular (pericarpelo) que envolve o ovário, e o número de ... (Resumo completo, clicar acesso eletrônico abaixo) / Abstract: Cactaceae is an endemic group of plants of the Americas, except for Rhipsalis baccifera. In Brazil, the Atlantic Forest, present in the South, Southeast and Northeast regions, comprises an important ecosystem for the group. Included in the tribe Cereeae, subfamily Cactoideae, the genus Cereus Mill. has 48 species, in which two have occur in the São Paulo state: Cereus fernambucensis Lem. and Cereus hildmannianus K.Schum. In view of the importance of anatomical and morphological studies to solve taxonomic issues, this study compared the floral morpho-anatomy of C. fernambucensis and C. hildmannianus. Macromorphological and histological studies were performed including light and scanning electron microscopy. The results revealed 67 morpho-anatomical characters, of which 55 were similar and 12 different. There were found 17 morphological characters (14 similar and 3 different) and 50 anatomical characters (41 similarities and 9 differences). The two species share most of the structural floral characteristics. However, anatomical analyzes revealed some characters, that may be of interesting to separate the two species, namely: the number of mesophyll strata in the tepaloid perianth, in the floral tube, and in the fillet; the organization of the transmitting tissue in the stigma and the style (stylar canal), the number of cell layers in the receptacle tissue (pericarpel) that surrounds the ovary, and the number of layers in the internal integument of the eggs. The data compiled in... (Complete abstract click electronic access below) / Mestre

In loquat, apex of a current shoot changes from vegetative to reproductive stage during summer, i.e. under high temperature conditions. Indeed, just before floral bud differentiation, a decline in the growth rate due to high temperature takes place. The aim of this work is to study the role of this 'summer rest period' on the apex transition from vegetative to reproductive stage. For this purpose 1) sprouting of secondary shoots was promoted at different times, removing the main shoot, before, during and after floral bud differentiation occurred and 2) groups of trees were shifted to a greenhouse under average maximum temperature not exceeding 25 ° C during different periods from June to October. Floral bud differentiation was evaluated. LEAFY (LFY), APETALA (AP1), TERMINAL FLOWERING 1 (TFL1) and FLOWERING LOCUS T (FT1) expression and hormonal content in abscisic acid (ABA), gibberellins (GAs), indoleacetic acid (IAA) and cytokinins (CKs) were analyzed in bud collected during the summer. Results suggest that the date of shoot apex removal determining floral bud differentiation of new shoots, so that the percentage of the new reproductive shoots reduced with the delaying of apex removal. On the other hand, maximum average temperature not exceeding 25 ° C prevented floral bud differentiation. Buds of the trees under indoors conditons displayed lower expression of identity floral genes EjLFY and EjAP1 than buds of trees grown in field. On the contrary, the floral repressor EjTFL1 and EjFT1 gene expressed higher in buds of the trees grown indoors. Time-course of ABA decreased in buds of trees grown in field during studied period while in buds of trees under greenhouse conditions displayed a growing trend. Time-course of GAs, IAA and CKs concentrations did not show remarkable differences between buds of trees growing under field and indoors conditions. Accordingly, 1) secondary shoots emerged from mid- August are unfitness to flower and 2) maximum average tempertature 25±1 °C during the summer prevents floral bud differentiation, enhances ABA biosynthesis, reduces EjLFY and EjAP1 expression and enhance EjTFL1 expression in the apex. / El níspero japonés diferencia sus yemas durante el verano, después de un periodo de ralentización del crecimiento vegetativo ligado a las altas temperaturas que se conoce como reposo estival. El objetivo de esta tesis fue estudiar la influencia de la parada estival en la diferenciación floral de esta especie. Para ello se diseñó un experimento en el que se forzó la brotación de brotes anticipados eliminado el ápice principal en diferentes fechas entre julio y septiembre, antes, durante y después de la parada estival. Paralelamente se diseñó otro experimento en el que se cambiaron las condiciones climáticas a grupos de árboles manteniéndolos en un invernadero a una temperatura máxima media de 25 °C durante diferentes periodos de diversa duración. Se evaluó la diferenciación floral y se analizó la expresión de los genes relacionados con la floración LEAFY (LFY), APETALA (AP1), TERMINAL FLOWERING 1 (TFL1) and FLOWERING LOCUS T (FT1) y el contenido hormonal en ácido abscisico (ABA), giberelinas (GAs), ácido indolácetico (AIA) y citoquininas (CKs) en yemas terminales muestreadas a lo largo del verano. Los resultados indican que la fecha de brotación modifica la diferenciación floral de los brotes anticipados siendo el porcentaje de brotes reproductivos inversamente proporcional a la fecha de eliminación del meristemo. Del mismo modo unas condiciones de temperatura máxima no superior a 25 °C impidieron la diferenciación floral. Las yemas de los árboles que estuvieron bajo dichas condiciones mantuvieron unos niveles de expresión de los genes de identidad floral, EjLFY y EjAP1, mucho menor que la de los árboles en condiciones de campo. Por el contrario, la expresión del represor EjTFL1 y del gen EjFT1 fue mayor en los árboles en invernadero. Por otro lado, el contenido endógeno de ABA descendió en los árboles situados en el campo durante el periodo de estudio mientras que en los árboles situados en el invernadero tuvo una evolución ascendente. Las concentraciones de GAs, AIA y CKs no mostraron prácticamente diferencias entre los ápices de los árboles mantenidos en campo y en invernadero. De acuerdo con ello, 1) los brotes anticipados surgidos a partir de mitad de agosto son incapaces de florecer y 2) la ausencia de altas temperaturas del verano promueve la acumulación de ABA, aumenta la expresión del gen represor (EjTFL1) y reduce la expresión de los genes de identidad floral (EjLFY y EjAP1) en yemas de níspero impidiendo su diferenciación floral. / El nispro japonés diferència les seus gemmes durant l'estiu, després d'un període d'alentiment del creixement vegetatiu lligat a les altes temperatures que es coneix com repòs estival. L'objectiu d'aquesta Tesi va ser estudiar la influència de la parada estival en la diferenciació floral d'aquesta espècie. Per a això es va dissenyar un experiment en què es va forçar la aparició dels brots anticipats eliminat l'àpex principal en diferents dates entre juliol i setembre, abans, durant i després de l'aturada estival. Paral·lelament es va dissenyar un altre experiment en què es van canviar les condicions climàtiques a grups d'arbres mantenint-los en un hivernacle a una temperatura màxima mitjana de 25 °C durant diferents períodes de diversa durada. Es va avaluar la diferenciació floral i es va analitzar l'expressió dels gens relacionats amb la floració LEAFY (LFY), APETALA (AP1), TERMINAL FLOWERING 1 (TFL1) and FLOWERING LOCUS T (FT1) i el contingut hormonal en àcid abscísic (ABA) , gibberel·lines (GAs), àcid indolacètic (AIA) i citoquinines (CKs) en gemmes terminals mostrejades al llarg de l'estiu. Els resultats indiquen que la data de brotació modifica la diferenciació floral dels brots anticipats i el percentatge de brots reproductius es inversament proporcional a la data d'eliminació del meristema. De la mateixa manera unes condicions de temperatura màxima no superior a 25 ° C varen impedir la diferenciació floral. Les gemmes dels arbres que van estar sota aquestes condicions van mantenir uns nivells d'expressió dels gens d'identitat floral, EjLFY i EjAP1, molt menor que la dels arbres en condicions de camp. Per contra, l'expressió del repressor EjTFL1 i del gen EjFT1 va ser més gran en els arbres en hivernacle. D'altra banda, el contingut endogen d'ABA va baixar en els arbres situats al camp durant el període d'estudi mentre que en els arbres situats a l'hivernacle va tenir una evolució ascendent. Les concentracions de GAs, AIA i CKS no van mostrar pràcticament diferències entre els àpexs dels arbres mantinguts en camp i en hivernacle. D'acord amb això, 1) els brots anticipats sorgits a partir de meitat d'agost són incapaços de florir i 2) l'absència d'altes temperatures de l'estiu promou l'acumulació d'ABA, augmenta l'expressió del gen repressor (EjTFL1) i redueix l'expressió dels gens d'identitat floral (EjLFY i EjAP1) en gemmes de nispro del Japó impedint la seva diferenciació floral. / García Lorca, AL. (2017). Temperature regulating floral bud differentiation in loquat (Eriobotrya japonica Lindl.). Hormonal and genetic aspects [Tesis doctoral no publicada]. Universitat Politècnica de València. https://doi.org/10.4995/Thesis/10251/79873 / TESIS

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京都大学 / 0048 / 新制・課程博士 / 博士(理学) / 甲第22630号 / 理博第4619号 / 新制||理||1664(附属図書館) / 京都大学大学院理学研究科生物科学専攻 / (主査)教授 中野 伸一, 教授 酒井 章子, 教授 曽田 貞滋 / 学位規則第4条第1項該当 / Doctor of Science / Kyoto University / DGAM

Insect pollinators serve a critical role in maintaining plant biodiversity and are especially susceptible to changes within their environment. To study the possible effects of seasonal variation in temperature, as well as climatic temperature increase on the plant-pollinator community, the relationship between bumblebee and flowering plant traits along an elevational gradient, representing warming-induced changes in plant community, were examined. Two hypotheses were tested; 1) if plant traits can predict visiting bumblebee proboscis length, and 2) if the relationship between plant traits and proboscis length is influenced by elevation, and the progression of the growing season. The study took place along an elevational gradient on Mt. Nuolja in Abisko National Park, Sweden. During surveys bumblebees were caught and measured. Flowers visited by captured bumblebees were collected, categorized by restrictiveness (i.e., whether or not the flower require a certain proboscis length, in order to access the nectar and pollen rewards) and floral traits measured (e.g., petal length). The results revealed that petal length was a significant predictor of bumblebee proboscis length, when taking restrictiveness into account. Furthermore, the relationship became weaker with increasing elevation for restrictive flowers but stronger for unrestrictive flowers. These findings show that trait-matching between bumblebees and flowers is an influential factor for flower selection and is affected by climatic temperature. This highlights the importance of considering individual-level traits when studying plant preference and creates a framework for assessing plant-pollinator networks. Future studies should examine additional traits that could explain the apparent size matching between unrestrictive flowers and proboscis.

Honey bee foragers form time memories that enable them to match their foraging activity to the time of day when a particular food source is most productive. Persistent foragers show food-anticipatory activity by making reconnaissance flights to the previously productive food source and may continue to inspect it for several days. In contrast, reticent foragers do not investigate the source but wait for confirmation from returning persistent foragers. To determine how persistent and reticent foragers might contribute to the colony's ability to rapidly reallocate foragers among sources, we trained foragers to collect sucrose from a feeder at a restricted time of day for several days and then observed their behavior for three consecutive days during which the feeder was empty. In two separate trials, video monitoring of the hive entrance during unrewarded test days in parallel with observing reconnaissance visits to the feeder revealed a high level of activity, in both persistent and reticent foragers, thought to be directed at other food sources. This 'extracurricular' activity showed a high degree of temporal overlap with reconnaissance visits to the feeder. In some cases, inspection flights to the unrewarded feeder were made within the same trip to an extracurricular source, indicating that honey bees have the ability to manage at least two different time memories despite coincidence with respect to time of day. The results have major implications for understanding flower fidelity throughout the day, flower constancy within individual foraging excursions, and the sophisticated cognitive management of spatiotemporal memories in honey bees.

Honey bee foragers form time memories that enable them to match their foraging activity to the time of day when a particular food source is most productive. Persistent foragers show food-anticipatory activity by making reconnaissance flights to the previously productive food source and may continue to inspect it for several days. In contrast, reticent foragers do not investigate the source but wait for confirmation from returning persistent foragers. To determine how persistent and reticent foragers might contribute to the colony's ability to rapidly reallocate foragers among sources, we trained foragers to collect sucrose from a feeder at a restricted time of day for several days and then observed their behavior for three consecutive days during which the feeder was empty. In two separate trials, video monitoring of the hive entrance during unrewarded test days in parallel with observing reconnaissance visits to the feeder revealed a high level of activity, in both persistent and reticent foragers, thought to be directed at other food sources. This 'extracurricular' activity showed a high degree of temporal overlap with reconnaissance visits to the feeder. In some cases, inspection flights to the unrewarded feeder were made within the same trip to an extracurricular source, indicating that honey bees have the ability to manage at least two different time memories despite coincidence with respect to time of day. The results have major implications for understanding flower fidelity throughout the day, flower constancy within individual foraging excursions, and the sophisticated cognitive management of spatiotemporal memories in honey bees.