430 research outputs found

    El Género Melanoleuca pat., en las Islas Baleares (España). I.

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    El genre Melanoleuca Pat., a les Illes Balears (Espanya). I. Se citen onze tàxons dins del gènere Melanoleuca Pat., dels quals vuit són nova citació per a les Illes Balears: M. grammopodia f. macrocarpa Boekhout, M. paedida (Fr.) Kühner & Maire, M. paedida f. electropoda (Maire & Malençon) Fontenla, Para & Vizzini, M. subexcentrica Bon, M. sublanipes Fontenla, Para & Vizzini, M. albifolia Boekhout, M. friesii (Bres.) Bon i M. subpulverulenta (Pers.) Singer. Les descripcions macro i microscòpiques per a cada taxon han estat realitzades a partir de les distintes recol·lectades a les illes. A més s'inclouen dades corològiques, ecològiques i comentaris taxonòmicsThe genus Melanoleuca Pat. in the Balearic Islands (Spain). I. Eleven taxa of fungi found in the Balearic Islands (Spain) are commented. After the information available to us, eight of them seems to be new records for the mycological flora of the Balearic Islands: M. grammopodia f. macrocarpa Boekhout, M. paedida (Fr.) Kühner & Maire, M. paedida f. electropoda (Maire & Malençon) Fontenla, Para & Vizzini, M. subexcentrica Bon, M. sublanipes Fontenla, Para & Vizzini, M. albifolia Boekhout, M. friesii (Bres.) Bon and M. subpulverulenta (Pers.) Singer. Taxonomy, ecology and chorology notes are also afforded.El género Melanoleuca Pat., en las Islas Baleares (España). I. Se citan once taxones incluidos en el género Melanoleuca Pat , de los cuales ocho son nueva cita para las Islas Baleares: M. grammopodia f. macrocarpa Boekhout, M. paedida (Fr.) Kühner & Maire, M. paedida f. electropoda (Maire & Malençon) Fontenla, Para & Vizzini, M. subexcentrica Bon, M. sublanipes Fontenla, Para & Vizzini, M. albifolia Boekhout, M. friesii (Bres.) Bon y M. subpulverulenta (Pers.) Singer. Para cada taxón, las descripciones macro y microscópicas se han realizado a partir de las muestras recolectadas en las islas. Además se incluyen datos corológicos, ecológicos y taxonómicos

    Contribució al coneixement de la família Lepiotaceae Roze de les Illes Balears (IV) : una espècie poc coneguda: Lepiota andegavensis Mornand

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    Contribució al coneixement de la família Lepiotaceae Roze a les Illes Balears (IV). Una espècie poc coneguda: Lepiota andegavensis Mornand. Se cita i descriu per primera vegada tant per a les Balears com per a l'estat espanyol, Lepiota andegavensis Mornand; a més, s'aporten notes sobre la seva taxonomia, ecologia i distribució.Contribut ion to our knowledge of the fam. Lepiotaceae Roze from the Balearic Islands (Spain) IV. A rare species: Lepiota andegavensis Mornand. Lepiota andegavensis Mornand is described for the first time for the Balearic Is. (Western Mediterranean) and also for Spain, with remarks added on its taxonomy, ecology and distribution.Contribución al conocimiento de la familia Lepiotaceae Roze en las Islas Baleares (IV). Una espécie poco conocida: Lepiota andegavensis Mornand. Se cita y se describe por primera vez para las Islas Baleares y para España, Lepiota andegavensis Mornand; ademàs, se aportan datos sobre su taxonomia,ecología y distribución

    Contribució al coneixement de la família Lepiotaceae Roze de les Illes Balears (IV) : una espècie poc coneguda: Lepiota andegavensis Mornand

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    Contribució al coneixement de la família Lepiotaceae Roze a les Illes Balears (IV). Una espècie poc coneguda: Lepiota andegavensis Mornand. Se cita i descriu per primera vegada tant per a les Balears com per a l'estat espanyol, Lepiota andegavensis Mornand; a més, s'aporten notes sobre la seva taxonomia, ecologia i distribució.Contribución al conocimiento de la familia Lepiotaceae Roze en las Islas Baleares (IV). Una espécie poco conocida: Lepiota andegavensis Mornand. Se cita y se describe por primera vez para las Islas Baleares y para España, Lepiota andegavensis Mornand; ademàs, se aportan datos sobre su taxonomia,ecología y distribución.Contribut ion to our knowledge of the fam. Lepiotaceae Roze from the Balearic Islands (Spain) IV. A rare species: Lepiota andegavensis Mornand. Lepiota andegavensis Mornand is described for the first time for the Balearic Is. (Western Mediterranean) and also for Spain, with remarks added on its taxonomy, ecology and distribution

    El Género Melanoleuca pat., en las Islas Baleares (España). I.

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    El genre Melanoleuca Pat., a les Illes Balears (Espanya). I. Se citen onze tàxons dins del gènere Melanoleuca Pat., dels quals vuit són nova citació per a les Illes Balears: M. grammopodia f. macrocarpa Boekhout, M. paedida (Fr.) Kühner & Maire, M. paedida f. electropoda (Maire & Malençon) Fontenla, Para & Vizzini, M. subexcentrica Bon, M. sublanipes Fontenla, Para & Vizzini, M. albifolia Boekhout, M. friesii (Bres.) Bon i M. subpulverulenta (Pers.) Singer. Les descripcions macro i microscòpiques per a cada taxon han estat realitzades a partir de les distintes recol·lectades a les illes. A més s'inclouen dades corològiques, ecològiques i comentaris taxonòmicsEl género Melanoleuca Pat., en las Islas Baleares (España). I. Se citan once taxones incluidos en el género Melanoleuca Pat , de los cuales ocho son nueva cita para las Islas Baleares: M. grammopodia f. macrocarpa Boekhout, M. paedida (Fr.) Kühner & Maire, M. paedida f. electropoda (Maire & Malençon) Fontenla, Para & Vizzini, M. subexcentrica Bon, M. sublanipes Fontenla, Para & Vizzini, M. albifolia Boekhout, M. friesii (Bres.) Bon y M. subpulverulenta (Pers.) Singer. Para cada taxón, las descripciones macro y microscópicas se han realizado a partir de las muestras recolectadas en las islas. Además se incluyen datos corológicos, ecológicos y taxonómicos.The genus Melanoleuca Pat. in the Balearic Islands (Spain). I. Eleven taxa of fungi found in the Balearic Islands (Spain) are commented. After the information available to us, eight of them seems to be new records for the mycological flora of the Balearic Islands: M. grammopodia f. macrocarpa Boekhout, M. paedida (Fr.) Kühner & Maire, M. paedida f. electropoda (Maire & Malençon) Fontenla, Para & Vizzini, M. subexcentrica Bon, M. sublanipes Fontenla, Para & Vizzini, M. albifolia Boekhout, M. friesii (Bres.) Bon and M. subpulverulenta (Pers.) Singer. Taxonomy, ecology and chorology notes are also afforded

    Hemangioendotelioma multicéntrico de muñeca

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    Se presenta el caso de un hemangioendotelioma multicéntrico grado I localizado en el extremo distal del cúbito y en varios huesos del carpo en un varón de 57 años como hallazgo casual en un estudio radiográfico realizado tras un traumatismo de muñeca. El paciente fue tratado mediante resección amplia del extremo distal del cúbito y de los huesos del carpo afectos (ganchoso, piramidal y pisiforme) y artrodesis radiocarpiana con injerto autólogo tricortical de cresta ilíaca. Tras un seguimiento de 24 meses el paciente está asintomático y no presenta recidivas locales ni metástasis a distancia.A case of multicentric hemangioendothelioma located at the distal ulnar and different carpal bones was found in a 57-year-old man after a Rx control because a wrist trauma. The patient was treated by wide resection of distal ulnar and the affected carpal bones. Fusion of the radiocarpal joint was performed using tricortical autologous bone graft taken from the iliac crest. After 24-month follow-up, the patient was asymptomatic without local recurrence or metastasis

    Generalization of the Gell-Mann formula for sl(5, R) and su(5) algebras

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    The so called Gell-Mann formula expresses the Lie algebra elements in terms of the corresponding Inonu-Wigner contracted ones. In the case of sl(n, R) and su(n) algebras contracted w.r.t. so(n) subalgebras, the Gell-Mann formula is generally not valid, and applies only in the cases of some algebra representations. A generalization of the Gell-Mann formula for sl(5,R) and su(5) algebras, that is valid for all representations, is obtained in a group manifold framework of the SO(5) and/or Spin(5) group

    BvCOLD1: A novel aquaporin from sugar beet (Beta vulgaris L.) involved in boron homeostasis and abiotic stress

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    [EN] In this report we have identified BvCOLD1, a novel aquaporin from sugar beet (Beta vulgaris) which is only conserved in the Chenopodioideae family. BvCOLD1 is expressed in all plant organs investigated and located in the endoplasmic reticulum. Transport experiments in yeast indicated that BvCOLD1 is able to transport glycerol and boron, the most limiting oligoelement for sugar beet cultivation. Overexpression of BvCOLD1 in Arabidopsis thaliana plants conferred tolerance to cold, to different abiotic stresses and the ability to grow under boron limiting conditions, therefore this novel aquaporin may be an important target to design new crops with enhanced boron homeostasis and abiotic stress tolerance.Ministerio de Economia y Competitividad, Grant/Award Number: BIO2016-77776-P; Secretaria de Estado de Investigacion, Desarrollo e Innovacion, Grant/Award Number: AGL2013-47886-R; Direccion General Investigacion Cientifica; MINECO, Grant/Award Numbers: BIO2014-61826 and BIO2016-77776-P; Universitat Politecnica de Valencia, Grant/Award Number: PAID-06-10-1496Porcel, R.; Bustamante-González, AJ.; Ros, R.; Serrano Salom, R.; Mulet, JM. (2018). BvCOLD1: A novel aquaporin from sugar beet (Beta vulgaris L.) involved in boron homeostasis and abiotic stress. Plant Cell & Environment. 41(12):2844-2857. https://doi.org/10.1111/pce.13416284428574112Aroca, R., Amodeo, G., Fernández-Illescas, S., Herman, E. M., Chaumont, F., & Chrispeels, M. J. (2004). The Role of Aquaporins and Membrane Damage in Chilling and Hydrogen Peroxide Induced Changes in the Hydraulic Conductance of Maize Roots. Plant Physiology, 137(1), 341-353. doi:10.1104/pp.104.051045Biancardi, E. (2005). Genetics and Breeding of Sugar Beet. doi:10.1201/9781482280296Bienert, G. P., Møller, A. L. B., Kristiansen, K. A., Schulz, A., Møller, I. M., Schjoerring, J. K., & Jahn, T. P. (2006). Specific Aquaporins Facilitate the Diffusion of Hydrogen Peroxide across Membranes. Journal of Biological Chemistry, 282(2), 1183-1192. doi:10.1074/jbc.m603761200Bissoli, G., Niñoles, R., Fresquet, S., Palombieri, S., Bueso, E., Rubio, L., … Serrano, R. (2012). Peptidyl-prolyl cis-trans isomerase ROF2 modulates intracellular pH homeostasis in Arabidopsis. 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Early transcriptional changes in Beta vulgaris in response to low temperature. Planta, 242(1), 187-201. doi:10.1007/s00425-015-2299-zMulet, J. M., Alemany, B., Ros, R., Calvete, J. J., & Serrano, R. (2004). Expression of a plant serine O-acetyltransferase inSaccharomyces cerevisiae confers osmotic tolerance and creates an alternative pathway for cysteine biosynthesis. Yeast, 21(4), 303-312. doi:10.1002/yea.1076Muries, B., Faize, M., Carvajal, M., & Martínez-Ballesta, M. del C. (2011). Identification and differential induction of the expression of aquaporins by salinity in broccoli plants. Molecular BioSystems, 7(4), 1322. doi:10.1039/c0mb00285bNoguchi, K., Yasumori, M., Imai, T., Naito, S., Matsunaga, T., Oda, H., … Fujiwara, T. (1997). bor1-1, an Arabidopsis thaliana Mutant That Requires a High Level of Boron. Plant Physiology, 115(3), 901-906. doi:10.1104/pp.115.3.901Nozawa, A., Takano, J., Kobayashi, M., von Wirén, N., & Fujiwara, T. (2006). 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    Early gene expression events in the laminar abscission zone of abscission-promoted citrus leaves after a cycleof water stress/rehydration: involvement of CitbHLH1

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    [EN] Leaf abscission is a common response of plants to drought stress. Some species, such as citrus, have evolved a specific behaviour in this respect, keeping their leaves attached to the plant body during water stress until this is released by irrigation or rain. This study successfully reproduced this phenomenon under controlled conditions (24h of water stress followed by 24h of rehydration) and used it to construct a suppression subtractive hybridization cDNA library enriched in genes involved in the early stages of rehydration-promoted leaf abscission after water stress. Sequencing of the library yielded 314 unigenes, which were spotted onto nylon membranes. Membrane hybridization with petiole (Pet)- and laminar abscission zone (LAZ)-enriched RNA samples corresponding to early steps in leaf abscission revealed an almost exclusive preferential gene expression programme in the LAZ. The data identified major processes such as protein metabolism, cell-wall modification, signalling, control of transcription and vesicle production, and transport as the main biological processes activated in LAZs during the early steps of rehydration-promoted leaf abscission after water stress. Based on these findings, a model for the early steps of citrus leaf abscission is proposed. In addition, it is suggested that CitbHLH1, the putative citrus orthologue of Arabidopsis BIGPETAL, may play major roles in the control of abscission-related events in citrus abscission zonesWork at the Centre de Genomica was supported by INIA grant RTA08-00065-00-00 and Ministerio de Ciencia e Innovacion-FEDER grants AGL2007-65437-C04-01, PSG-06-0000-2009-8, IPT-01-0000-2010-43, and AGL2011-30240. J.A. and P. M. were recipients of INIA predoctoral fellowships and M. C. and A. C. of INIA/CCAA and 'Ramon y Cajal' postdoctoral contracts, respectively. The help and expertise of E. Blazquez, I. Sanchis, and A. Boix are gratefully acknowledged.Agustí, J.; Gimeno, J.; Merelo, P.; Serrano Salom, R.; Cercós, M.; Conesa, A.; Talón, M.... (2012). Early gene expression events in the laminar abscission zone of abscission-promoted citrus leaves after a cycleof water stress/rehydration: involvement of CitbHLH1. Journal of Experimental Botany. 63:6079-6091. https://doi.org/10.1093/jxb/ers270S607960916

    Physical factors, distribution and present land-use of terraces in the Tramuntana range

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    We have studied the present-day spatial distribution of terraced lands and their current uses in the main mountainous area of the Mallorca island. A pattern of physical factors affecting the terraces has been established; the greatest significance belongs to lithology, slope and altitude. The process of land degradation and the transitional process of conversion to vegetation-covered land have been quantified. This conversion has affected up to 25 % of the terraced lands during the last 25 years.[es] Se estudia la distribución actual de los terrenos abancalados en la principal comarca montañosa de la isla de Mallorca, y se analizan sus usos actuales. Se establecen los factores físicos a los que se ajusta la distribución de las terrazas, entre los cuales destaca la influencia de la litología, la pendiente y la altitud. Se cuantifica el proceso de desaparición de esta forma de acondicionamiento del terreno y su transición hacia su conversión en sectores ocupados por vegetación natural, de modo que a lo largo de los últimos 25 años en cerca de un 25% de los terrenos abancalados el aterrazamiento ha desaparecido. [fr] On a étudié la distribution actuelle des terrains aménagés en terrasses dans la principale contrée montagneuse de l'Ile de Majorque. On a analysé leurs usages actuels et on a établi les facteurs naturels qui ont déterminé la distribution en terrasses, facteurs parmi lesquels les plus importants sont la lithologie, la pente et l'altitude... On a quantifié le processus de disparition de cette forme d'aménagement du terrain et sa transition vers une transformation en secteurs occupés par la végétation naturelle. Ainsi au cours des 25 dernières années, cette disposition en terrasses a disparu dans presque 25% de ces terrains ainsi aménagés

    Salaatin hybridivalotus

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    LED-tekniikka ei ole vielä korvannut perinteisiä kaasunpurkauslamppuja kasvihuoneviljelyssä. Suurpainenatriumlampun valon aiheuttamat ongelmat kasvinvalotuksessa ovat hyvin tunnettuja, mutta niiden ratkaisuun ei ole aikaisemmin löytynyt teknisesti käytännöllistä ratkaisua. Työn tilaaja oli Netled Oy. Opinnäytetyön aiheena oli selvittää salaatin (Lactuca sativa 'Frillice') kasvihuoneviljelyssä hybridivalotusta, jossa suurpainenatriumlamppujen ohella käytettiin Netled Oy:n kehittämiä sinistä valoa tuottavia LED-valaisimia. Tavoitteena oli kerätä tutkimustietoa sinisen valon vaikutuksista salaattien kasvuun ja viljelykokeen avulla tutkia hybridivalotusta käytännössä. Viljelykokeessa tutkittiin taimivaiheen hybridivalotusta sekä hybridivalotusta koko salaatin kasvuajan. Tuloksista kävi ilmi, että pelkkä salaatin taimivalotus lisäsi ravinteiden määrää salaateissa ja vähensi nitraattipitoisuutta. Vaikutukset olivat suurempia, kun hybridivalotusta käytettiin koko kasvuaika. Tulosten pohjalta voidaan todeta hybridivalotuksen tuovan parannusta salaatin laatuun.LED-lighting has not yet replaced the conventional gas-discharge lamps in greenhouse production. Although the problematic effects of high-pressure sodium lamps in plant lighting are well known, there has not been a technically satisfying solution to solve them. The client of this thesis is Netled Oy. The aim of the thesis was to find out the benefits of hybrid lighting in the greenhouse cultivation of lettuce Lactuca sativa 'Frillice'. The hybrid lighting consisted of Netled Booster LED-lights and high-pressure sodium lamps. Netled Booster emits only blue light and is spesificly designed to be used together with HPS-lamps. The effects of the hybrid lighting were tested with two lighting methods; during the seedling phase only and during the entire growth cycle. Desk study was carried out to find out the effects of blue light on plant growth and morphology. The key findings were that the plants illuminated with hybrid lighting gained more nutrients and had lower nitrate concentration. The conclusion based on the results was that the quality of lettuce can be improved with hybrid lighting
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