Search results for "API"
showing 10 items of 8586 documents
Secondary metabolites of the lichen-associated fungus Apiospora montagnei
2017
Abstract The endolichenic fungus Apiospora montagnei isolated from the lichen Cladonia sp. was cultured on solid rice medium, yielding the new diterpenoid libertellenone L (1), the new pyridine alkaloid, 23-O-acetyl-N-hydroxyapiosporamide (2) and the new xanthone derivative 8-hydroxy-3-hydroxymethyl-9-oxo-9H-xanthene-1-carboxylic acid methyl ether (3) together with 19 known compounds (4–22). The structures of the new compounds were elucidated by 1D and 2D NMR spectra as well as by HRESIMS data. The absolute configuration of the new 6,7-seco-libertellenone derivative 1 was determined by single-crystal X-ray diffraction. Four additional known compounds 23–26 were isolated when NaCl or NH4Cl w…
Effects of Rosmarinus officinalis and Salvia officinalis essential oils on Tetranychus urticae Koch (Acari: Tetranychidae)
2013
Laboratory trials were carried out to characterize Rosmarinus officinal and Salvia officinalis essential oils and to evaluate their pesticidal activities against Tetranychus urticae. Slide-dip and leaf-disk bioassays were employed to study the mortality caused by these plant oils on two-spotted spiders. Different dilutions of both essential oils (0.10-0.25%, v/v) caused acute contact toxicity, although the sage extract showed greater acaricidal activity than rosemary oil. Mortality rates of 95-100% were observed at all the sage oil dosages and when rosemary emulsions contained at least 0.20% of essential oil. In the residual contact experiments (leaf-disk assays), 0.15-0.25% of sage oil or …
Die Wirkung unterschiedlicher Lichtintensitäten während der Anzucht auf die CO2-Kompensationslage, die Glykolsäure-Oxidase- und Ribulosebiphosphat-Ca…
1978
Summary Sinapis alba (white mustard) plants were grown under conditions of strong (100 W · m -2 ) and weak (3 W · m -2 ) light and the effect of the light intensity during growth on the CO 2 -compensation point and the activities of glycolic acid oxidase and ribulose bisphosphate carboxylase were studied. The CO 2 -compensation concentration was determined according to two methods: firstly in a closed system with an infrared CO 2 -analyzer, and secondly according to the curve of net photosynthesis as a function of C0 2 -concentration over the range of 400 vpm CO 2 to the CO 2 -compensation point (Fig. 4). The intensity of light during growth was observed to exert an unmistakable effect on t…
Follicle Cells of Styela plicata Eggs (Ascidiacea)
2001
Styela plicata eggs are surrounded by large follicle cells that at LM appear as highly vacuolated and columnar in shape; at the apical end of each cell lies a very large and clear vacuole, half of which extends inward. Electron microscope observations show a Single layer of largely spaced box-like follicle cells; the close cell-cell contact at their base is realized by interdigitations. The cell surface shows a peculiar structure, more developed in the latero-basal regions, consisting of a complex of membrane extensions, i.e. microvilli, filopodia and lamellipodia. Filopodia irradiate in all directions towards the adjacent cells and the outermost vitelline coat, thus creating a complex netw…
Breeding Tubercles, Papillomatosis and Dominance Behaviour of Male Roach (Rutilus rutilus) During the Spawning Period
2004
We studied the relationship between the breeding tubercle ornamentation (i.e. skin roughness) and male pre-spawning dominance and courtship behaviour in roach (Rutilus rutilus) within an experimental laboratory system. Sexually mature fish were caught during their migration to their spawning pond and their behaviours were studied in an artificial spawning arena. Males behaved naturally both in terms of male–male interactions and attempts to achieve spawnings. Males having many, large breeding tubercles (i.e. rough skin) were significantly more often dominant in our dyadic trials than those with smooth skin. The dominant male in the trial exhibited a more active courtship behaviour than its …
<strong>First record of the plant bug genus <em>Euchilofulvius</em> from Myanmar (Hemiptera: Heteroptera: Miridae: Cylapinae), with…
2015
The cylapine plant bug genus Euchilofulvius was proposed by Poppius (1909) to accommodate a single Indonesian species, E. tibialis Poppius from Mentawai Islands. Several subsequent works have fragmentally added six valid species (Gorczyca, 2006, 2008; Poppius, 1913; Schuh, 1995, 2002–2014 online catalog; Yasunaga & Miyamoto, 2006; Yasunaga et al., 2012), and currently, the following seven members are known mainly from the Oriental Region: E. antennatus Gorczyca, 1999 (Sulawesi); E. carinatus (Poppius, 1913) (India, Sri Lanka); E. josifovi Gorczyca, 2008 (Malaya); E. lepidopterus Yasunaga & Miyamoto, 2012 (Okinawa, Japan); E. pallescens Gorczyca, 2002 (Solomon Islands); E. tibialis Poppius, …
<p class="HeadingRunIn"><strong>Notes on the genera <em>Peritropisca</em> Carvalho &amp; Lorenzato and <em>Rewafulv…
2013
The genera Peritropisca Carvalho & Lorenzato, 1978 and Rewafulvius Carvalho, 1972 are redescribed. A description of a new species of the genus Peritropisca from Indonesia— P. laticostata sp. nov. and a redescription of P. bituberculata Carvalho & Lorenzato, 1978 are provided. The genus Euchilofulviella Gorczyca, 1999 is proposed as a junior synonym of Rewafulvius Carvalho, 1972 syn. nov. A color habitus picture of the adult and male genitalia drawings of each treated species are provided. A key to the genus Peritropisca is given.
The mammalian geochronology and biogeography of Paşalar (Middle Miocene, Turkey)
1990
Abstract The Pasalar fauna includes 56 mammalian species of European. Asian, African and North American origin. Evidence provided on the stage-of-evolution of the primates Sivapithecus darwini and cf. Kenyapithecus, the rodent Turkomys pasalarensis, insectivores, carnivores, rhinos, suids and ruminants suggests that Pasalar is correlative with the Late Langhian marine stage and European Mammal Neogene Zone 6., circa 15 Ma (million years ago). A review of the Pasalar fauna's biogeographic history suggests that it was aggregated by a succession of pulsed intercontinental geographic extensions tied to global sea-level lowering events during the earlier half of the Miocene.
The Follicle Cells of Styela Plicata (Ascidiacea, Tunicata): A Sem Study
2000
The morphological aspect of the follicle cells of Styela plicata eggs is described by means of scanning electron microscope investigations. The follicular layer is made of spaced, cylindrical box-like cells which are arranged hexagonally. They adhere to the egg through a complex network of membrane extensions making an overall thin layer on the vitelline coat. The walls of the follicle cells are plentifully provided with microvilli, filopodia and lamellipodia, which allow a connection among the cells. At their apical end lies a large vacuole containing a granule, probably involved in secretion. At insemination the majority of spermatozoa is distributed on the apical membrane of the follicle…
Anerkjennelse og menneskeverdets forankring : henimot en transnasjonal anerkjennelsespolitikk
2011
Anerkjennelse spiller en nøkkelrolle for menneskeverdet innenfor Frankfurterskolens kritiske teori. Men hvorledes skal «anerkjennelse» forstås? Og hvorledes kan anerkjennelse innløse menneskeverdets universelle og egalitære fordring? Jürgen Habermas' og Axel Honneths «familiekrangel» bidrar med relevant innsikt om relasjonen mellom menneskeverd og anerkjennelse. Dette er en innsikt med affinitet til menneskeverdets normative legitimering i dagens transnasjonaliserte verden.Nøkkelord: Menneskeverd, transnasjonal anerkjennelsespolitikk, Jürgen Habermas, Axel HonnethEnglish summary: Recognition and the Grounding of Human Dignity – Towards a Transnational Politics of RecognitionRecognition play…