153,004 research outputs found
Vascular functioning and development of the kiwifruit berry (Actinidia deliciosa)
No full textThe aim of this study was to understand kiwifruit berry development and the role of cell turgor and the phloem unloading pathway in development. Important aspects of berry development include the size of the fruit and its composition. The fresh weight growth curve of the kiwifruit berry was shown to be double sigmoid in shape. Dry weight accumulated linearly for the initial 139 days after anthesis (DAA). At this time the soluble solids concentration began to increase. Berry firmness was measured using two methods, with the penetrometer and with a new non-destructive method, utilising skinfold callipers. Both methods exhibited similar results, indicating that the skin callipers may be useful in the future for non-destructive berry rheological measurements.
Cell turgor was measured indirectly from measurements of symplasmic and apoplasmic solute potentials, and the matric potential of the berry. Apoplasmic sap, required to measure the apoplasmic solute potential, was extracted using two different methods the pressure chamber and through centrifugation. Measurements of sap osmotic potential suggest that the sap extracted using the centrifuge was contaminated with symplasmic sap, resulting in a negative cell turgor estimate. However, the pressure chamber technique provided apoplasmic sap that produced a more accurate estimate of cell turgor. Direct estimates of cell turgor were only obtained from the midpoint of the growing season because of contamination with symplasmic sap, but the values obtained were comparable to literature values for developing grape and tomato berries.
The phloem unloading pathway in the fruit was investigated using a symplasmic tracer dye, carboxyfluorescein diacetate coupled with 14C labelling and autoradiography. The phloem unloading pathway was symplasmic until 91 DAA when the dye was restricted to the phloem cells only, indicating a change to an apoplasmic pathway. However, due to the lack of functional unloading seen in radiolabelled samples, a change in the phloem unloading pathway could not be confirmed
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Persistence of anticancer activity in berry extracts after simulated gastrointestinal digestion and colonic fermentation
No full textFruit and vegetable consumption is associated at the population level with a protective effect against colorectal cancer. Phenolic compounds, especially abundant in berries, are of interest due to their putative anticancer activity. After consumption, however, phenolic compounds are subject to digestive conditions within the gastrointestinal tract that alter their structures and potentially their function. However, the majority of phenolic compounds are not efficiently absorbed in the small intestine and a substantial portion pass into the colon. We characterized berry extracts (raspberries, strawberries, blackcurrants) produced by in vitro-simulated upper intestinal tract digestion and subsequent fecal fermentation. These extracts and selected individual colonic metabolites were then evaluated for their putative anticancer activities using in vitro models of colorectal cancer, representing the key stages of initiation, promotion and invasion. Over a physiologically-relevant dose range (0–50 µg/ml gallic acid equivalents), the digested and fermented extracts demonstrated significant anti-genotoxic, anti-mutagenic and anti-invasive activity on colonocytes. This work indicates that phenolic compounds from berries undergo considerable structural modifications during their passage through the gastrointestinal tract but their breakdown products and metabolites retain biological activity and can modulate cellular processes associated with colon cancer
Dos nuevas especies suramericanas de Croton (Euphorbiaceae) y sus afinidades filogenéticas
No full text5 pages, 5 figures.[EN] Two rarely collected species of Croton from South America are
des cribed and illustrated. Croton chimboracensis P.E. Berry & Rii -
na is localized in western Andean Ecuador and is sister to Croton
sect. Adenophyllum Griseb. Croton abonari Riina & P.E. Berry is
known from a single location in Amazonian Brazil; it resembles
both C. sampatik Müll. Arg. and members of Croton sect.
Cuneati (G.L. Webster) Riina & P.E. Berry, but C. abonari can be
easily distinguished from both groups by distinctive morphological
characters.[ES] Se describen e ilustran dos especies raras de Croton de Suramérica.
Croton chimboracensis P.E. Berry & Riina está locali zada en
los Andes occidentales de Ecuador y es hermana del clado de
Croton sect. Adenophyllum Griseb. Croton abonari Riina & P.E.
Berry se conoce de una sola localidad en la Amazonia de Brasil;
es similar tanto a C. sampatik Müll. Arg. y a miembros de la sección
Cuneati (G.L. Webster) Riina & P.E. Berry, pero C. abonari se
puede diferenciar de ambos grupos por varios caracteres morfológicos
distintivos.Peer reviewe
Histoire du Berry
No full textEn 600 av. J.-C., les Bituriges, « rois du monde », dominent la Celtique sous l’autorité d’Ambigat. Leur territoire est uni par le contrôle des bassins versants de la Loire et l’occupation d’une grande clairière céréalière, la Champagne, cernée par les forêts. Le chef-lieu est Avaricum, que Vercingétorix choisira pour venir à bout des légions de César. L’issue est tragique. Malgré Gergovie, la Gaule devient romaine. Commence alors l’histoire du Berry, qui sera pendant 1700 ans le théâtre d’événements majeurs. Parce que le Berry n’a jamais été une province, son destin se fond dans le roman national. Pourtant, c’est en Berry que s’effondre l’Empire romain. C’est en Berry qu’après la double trahison d’Aliénor se joue l’unité de la France. C’est en Berry que Charles VII assure la survie du royaume quand il est chassé de Paris. De Bourges, le duc Jean fait rayonner le gothique international. Puis la seconde renaissance du droit illumine l’Europe des humanistes. C’est sur le Berry que Sully compte pour exalter sa gloire, en Berry que Condé organise la Fronde. Le Berry s’étiole ensuite, et la Révolution l’effacera des cartes. Mais en 1913, le Grand Meaulnes le fait entrer dans la littérature mondiale comme ce paradis perdu, bordé de bois et d’étangs, qui s’est à jamais retiré du temps
The seed germination of berry-producing ericaceous shrubs in relation to dispersal by hare
No full textHare pellets contribute greatly to the seed dispersal of a berry-producing shrub, Gaultheria miqueliana Takeda (Ericaceae), on Mount Koma, northern Japan. Numerous seeds of G. miqueliana germinated from the hare pellets (122.2 ± 7.3/pellet, mean ± SE), confirming that the pellets potentially had a role in the seed dispersal. Lab-experiments confirmed that the seeds of G. miqueliana needed light for full germination without cold stratification. Besides, hare pellets were collected from a post-mined peatland in Sarobetsu Mire, northern Japan, where G. miqueliana was not distributed but two berry-producing ericaceous species were distributed. No seeds germinated on the pellets collected from the Mire. These results suggested that the tight relationships between hare and berry-producing shrubs were species-specific
<i>No se sabe</i>: entrevista a Lucas Gagliardi
No full textEntrevista al Licenciado y Profesor en Letras (UNLP) Lucas Gagliardi. Se especializa en literatura en lengua inglesa y en crítica genética. Se desempeña como profesor en la Universidad Pedagógica (UNIPE), en institutos de formación docente y escuelas secundarias. Ha participado en proyectos de investigación sobre archivos de escritores, publicaciones impresas. Participa en el programa de voluntariado universitario de la Facultad de Trabajo Social (UNLP) en articulación con la Biblioteca Ambulante del Hospital de Niños dictando talleres de lectura y escritura.Al hacer clic en el enlace que figura en "Documentos relacionados", pueden accederse a todos los trabajos de Lucas Gagliardi presentes en el repositorio.Radio Universidad Nacional de La Plat
À la recherche du mouvement perdu... Une guerre de position pas si immobile à Berry-au-Bac (1914-1918)
No full textAu cours de l'année 2015, le projet franco-allemand « La cote 108 à Berry-au-Bac » a évolué progressivement. En replaçant notre objet d'étude – un petit village axonais et sa butte – dans les stratégies militaires française et allemande à l'échelle du front de l'Aisne, un espace plus vaste que celui étudié l'année dernière, nous avons pu alors aborder de nouvelles problématiques autour de la notion de « front ». En effet, à la fin de l'année 1914, les armées s'enterrent en se faisant face apr..
Plano de marketing de Berry
No full textEste projeto profissional teve como objetivo criar um plano de marketing para a BERRY, uma empresa do setor alimentar.
Numa primeira fase procedeu-se à revisão da literatura onde foi explorado o que é um negócio. Esta levou à investigação de planos de negócio e empreendedorismo. Após analisados os temas relacionados com negócios, o estudo focou-se no setor alimentar, onde se identificaram os fatores de sucesso e diferenciadores deste setor. Posteriormente, a revisão da literatura focou-se no marketing como um todo, desde uma breve visão da evolução do conceito ao plano de marketing, a sua importância e as suas diferentes estruturas.
Após a revisão definiu-se a metodologia. Foi descrito o caso de BERRY, os seus produtos, localização e conceito para contextualizar antes de definir os objetivos para o plano de marketing. Finalmente, na metodologia aplicada neste projeto profissional, usaram-se elementos das estruturas de diferentes autores de planos de marketing que foram conciliados numa estrutura que fizesse sentido para BERRY.
O plano de marketing consistiu num diagnóstico, onde foi efetuada uma análise interna, análise externa, comparação entre BERRY e concorrentes e, por fim, a análise SWOT. As suposições foram a área subsequente, seguida dos objetivos, estratégias, ações e o orçamento. Nesta fase foram criados todos os detalhes do plano de marketing de BERRY. Finalmente realizou-se o controlo e avaliação do plano de marketing. Este acabou com os resultados esperados para o plano bem como o controlo e avaliação do mesmo.
A realização deste plano de marketing permitirá a BERRY definir uma estratégia focada no cliente, na qualidade do produto e serviço e diferenciada da demais concorrência
Quand les bactéries se mêlent du calcul des ordinateurs
No full textNational audienceLa modélisation des cellules permettra-t-elle de trouver des solutions aux problèmes que nos ordinateurs ne savent pas résoudre ? Pour le chercheur Hugues Berry, c’est une piste à explorer..
Quand les bactéries se mêlent du calcul des ordinateurs
No full textNational audienceLa modélisation des cellules permettra-t-elle de trouver des solutions aux problèmes que nos ordinateurs ne savent pas résoudre ? Pour le chercheur Hugues Berry, c’est une piste à explorer..
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