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showing 10 items of 7116 documents
Revision of the genusXyalaspisHartig, 1843 (Hymenoptera: Figitidae: Anacharitinae) in the Western Palaearctic
2015
ABSTRACT A revision of Xyalaspis Hartig, 1843 (Hymenoptera: Anacharitinae) in the Western Palaearctic region is given. Xyalaspis spinigera Reinhard, 1860 and Xyalaspis subulifera (Thomson, 1862) are synonymized with Xyalaspis laevigata Hartig, 1843 and Xyalaspis rugosa Hartig, 1843 respectively, and their distribution areas are extended. A new species Xyalaspis pseudolaevigata n. sp. is described from France. One species previously assigned to the genus Xyalaspis, X. laevis (Hedicke, 1914), is transferred to Aegilips Haliday, 1835. Diagnostic characters are illustrated and data about biology, distribution and morphological variability of the studied species are presented and discussed. A ke…
Radial cracks around α-quartz inclusions in almandine: Constraints on the metamorphic history of the Oman mountains
1993
Radiating tensional cracks around α-quartz inclusions in almandine have been observed in metapelite samples from the southeastern Saih Hatat tectonic window, northeastern Oman Mountains. These almandines show an inclusion-rich (glaucophane + epidote) and strongly deformed core with inclusions of different mineral phases. The rim of the same almandines is inclusion-poor and shows only quartz, apatite, zircon, rutile and BaAl phosphates as inclusions. Quartz and apatite inclusions in the rim are single crystals often surrounded by radial cracks. These radial cracks developed during uplift by the dilation of α-quartz (4–5 vol%) without a phase transformation. Subsequently, these cracks were fi…
Digitalis spp.: In Vitro Production of Haploids
1990
Digitalis, a member of the Scrophulariaceae, is composed of biennial or perennial herbs and occasionally of small shrubs. Several Digitalis species are used therapeutically, as they are a source of cardiac glycosides. The importance and distribution of these species are summarized below, with special attention to D. purpurea, D. lanata and D. obscura. For a detailed review see Thtin et al. (1972), Morton (1977), and Font Quer (1978).
Seasonal Variation in Nutrient Status of Foxglove Leaves
2006
The seasonal variation of mineral elements and the relationships among them were studied in natural populations of foxglove (Digitalis obscura). Young and mature leaves were collected in 10 different populations and on four sample dates (May, July, October, and February). Leaf mineral elements [nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), iron (Fe), manganese (Mn), zinc (Zn), and copper (Cu)] were determined. The highest concentrations of N, P, and K in young leaf were recorded in May, followed by a decrease in the other months, while in contrast Ca and Fe showed the lowest concentration in May. Mature leaves showed differential seasonal behavior. Besides seaso…
Phenolics of Reichardia and their taxonomic implications
1992
Abstract Fifteen compounds have been detected in Reichardia tingitana and R. picroides (nine flavonoids, four cinnamic derivatives and two unidentified non-phenolic compounds). The present study examines the taxonomic implications of these compounds in relation to the morphological and karyological characteristics.
Selection and long-term cultures of high-yielding Digitalis obscura plants: RAPD markers for analysis of genetic stability
1996
Fifteen wild-growing plants of Digitalis obscura collected in three differents regions were characterized according to their capacities to biosynthesize cardenolides and to proliferate in vitro. Great genotype-dependent variabilities were found in both parameters. Selected genotypes were differentiated using randomly amplified polymorphic DNA (RAPD) markers. Once an elite genotype with high-yielding properties was isolated and micropropagated during 2 years, identity of the donor plant and the regenerants was confirmed by RAPD analysis.
Micropropagation of juvenile and adultDigitalis obscura and cardenolide content of clonally propagated plants
1991
Cultures ofDigitalis obscura L. were established from axillary buds of mature plants or leaves of seedlings obtained under aseptic conditions. Explants were cultured on Murashige and Skoog medium containing benzyladenine and/or naphthaleneacetic acid. Shoot proliferation from axillary buds was not affected by seasonal fluctuations in the stock plants and increased relative to the cytokinin concentration, but auxin reduced the multiplication rate. Differentiation of somatic embryos and adventitious buds from cultured leaves required naphthaleneacetic acid alone or combined with benzyladenine, respectively. Cardenolide pattern and content of the regenerated plants were determined by high perf…
Residents'corner December 2013. PhotogRaphic Clues: Choosing the best camera for dermatologic photography.
2013
ejd.2013.2262 Auteur(s) : Alejandro Martin-Gorgojo1 alejandromartingorgojo@aedv.es, Leo Barco2 1 Dermatology Department, Clinical University Hospital, University of Valencia, Av Blasco Ibanez 17, 46010 Valencia, Spain 2 Dermatology Department, Clinica Mediterraneo, Av Nueva musa s/n, 04007 Almeria, Spain Digital photography is constantly progressing and an increasing number of options are available in the market. The present manuscript will briefly try to point out the most important features in [...]
Meningitis caused by Enterococcus gallinarum after lumbar drainage of cerebrospinal fluid.
2005
We report a rare case of meningitis caused by Enterococcus gallinarum, a bacterium characterized by its ability to express low-level resistance to vancomycin. As in the three other previously reported cases, this one occurred in a patient with a cerebrospinal fluid drainage catheter and properly responded to antimicrobial therapy and removal of the drain.
Nucleoprotein-specific nonneutralizing antibodies speed up LCMV elimination independently of complement and FcγR
2013
CD8(+) T cells have an essential role in controlling lymphocytic choriomeningitis virus (LCMV) infection in mice. Here, we examined the contribution of humoral immunity, including nonneutralizing antibodies (Abs), in this infection induced by low virus inoculation doses. Mice with impaired humoral immunity readily terminated infection with the slowly replicating LCMV strain Armstrong but showed delayed virus elimination after inoculation with the faster replicating LCMV strain WE and failed to clear the rapidly replicating LCMV strain Docile, which is in contrast to the results obtained with wild-type mice. Thus, the requirement for adaptive humoral immunity to control the infection was dep…