Search results for "Scute"

showing 10 items of 48 documents

Glutamine synthetase isozymes in germinating barley seeds

1993

Glutamine synthetase (GS; EC 6.3.1.2) is a key enzyme of ammonia assimilation in higher plants. In the present study the subunit composition and localization of GS in germinating barley (Hordeum vulgare) seed have been clarified. Analysis of the GS polypeptide composition by immunoblotting revealed two different polypeptides. A and B, with a molecular mass of 42 and 40 kDa, respectively. In the scutellum subunit A was already present in the ungerminated seed and remained unchanged, whereas subunit B appeared on day 2 and increased about 5-fold during germination. Polypeptide B also appeared later during germination in the aleurone layer, roots and weakly in the etiolated shoots. By immunogo…

Physiologyfood and beveragesImmunogold labellingCell BiologyPlant ScienceGeneral MedicineScutellumBiologyCaryopsisBiochemistryGerminationAleuroneGlutamine synthetaseShootGeneticsHordeum vulgarePhysiologia Plantarum
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Essential oils of three species of scutellaria and their influence on Spodoptera littoralis

2013

Scutellaria orientalisbiologyCaryophyllenePlant compositionSettore CHIM/06 - Chimica Organicabiology.organism_classificationBiochemistrylaw.inventionchemistry.chemical_compoundEssential oils Scutellaria Spodoptera littoralischemistrylawBotanyScutellariaScutellaria sp. Essential oil Spodoptera littoralisSettore BIO/15 - Biologia FarmaceuticaSpodoptera littoralisEcology Evolution Behavior and SystematicsEssential oil
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On some Old World Scutelleridae

2009

Settore AGR/11 - Entomologia Generale E Applicatanew species new genus Scutelleridae palaearctic
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I sistemi delle classi d’età. Il contributo teorico di Bernardo Bernardi e la loro riscoperta contemporanea in chiave identitaria e patrimoniale

2020

This chapter considers Bernardi’s contribution to two different processes of traditional institutions revival in East Africa. He was the main ethnographer of the Mugwe, a traditional dignitary of the Meru of Kenya, that ceased to exist soon after his field work. He used the attribution ‘failing prophet’ in the title of the first edition of his book, changed into ‘blessing prophet’ in the following edition, having in the meanwhile registered a growing symbolic consideration for the institution. The history of the gadaa generational class system of the Oromo is intertwined with the Oromo liberation struggle. The institution never disappeared entirely, having remained operative among the Oromo…

Settore M-DEA/01 - Discipline DemoetnoantropologicheIn Africa sono sempre più frequenti le iniziative volte al recupero di nuovi significati per le istituzioni e i valori tradizionali. Tali processi sono spesso basati sui resoconti etnografici raccolti nei periodi precedenti. In questo capitolo si esamina il contributo che il lavoro di Bernardi ha dato in relazione all’istituzione del Mugwe dei Meru del Kenya e al sistema di classi generazionali gadaa degli Oromo dell’Etiopia. Bernardi ha prodotto il principale resoconto etnografico del Mugwe e ha registrato il fenomeno del recupero simbolico dell’istituzione già dalle prime fasi. In questo quadro si colloca la restituzione da lui effettuata con la ristampa del testo inglese. Il contributo di Bernardi rispetto al sistema gadaa ha riguardato piuttosto l’elaborazione teorica sui sistemi delle classi d’atà iniziata con la tesi di dottorato e continuata con varie pubblicazioni di grande influenza. Riconosce la politicità di tali sistemi tra i gruppi etnici egalitari dell’Africa orientale anticipando il successo che il gadaa avrà come simbolo nazionale e simbolo politico di democraticità nel quadro della lotta di liberazione degli Oromo. Il gadaa è stato di recente riconosciuto dall’Unesco patrimonio culturale immateriale dell’umanità e si continua a discutere anche a livello accademico sulla sua potenzialità nella governance degli Oromo.
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Rapid determination of baicalin and total baicalein content in Scutellariae radix by ATR-IR and NIR spectroscopy

2013

In this study methods for the quantification of baicalin and total baicalein in Scutellariae radix with near infrared (NIR) spectroscopy and attenuated-total-reflectance mid-infrared (ATR-IR) spectroscopy in hyphenation with multivariate analysis were developed and compared. The reference analysis was performed by high performance liquid chromatography coupled to diode array detection (HPLC-DAD). Different pretreatments like standard normal variate (SNV), multiplicative scatter correction (MSC), first and second derivative Savitzky-Golay were applied on the spectra to optimize the calibrations. A principal component analysis was performed with both spectroscopic methods to distinguish wild …

Spectrophotometry InfraredATR-IRAnalytical chemistryPlant RootsHigh-performance liquid chromatographyArticleAnalytical Chemistrychemistry.chemical_compoundScutellariae radixScutellariae radixBaicalinLeast-Squares AnalysisSpectroscopySecond derivativeFlavonoidsPrincipal Component AnalysisChromatographybiologyNear-infrared spectroscopyNIRBaicaleinbiology.organism_classificationBaicaleinchemistryFlavanonesScutellaria baicalensisBaicalinScutellaria baicalensisTalanta
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Neo-clerodane diterpenoids from Scutellaria lateriflora

1998

Abstract Three new diterpenoids, scutelaterins A-C, have been isolated from Scutellaria lateriflora and their structures established as (11S,13S,16S)-2β,6α,19-triacetoxy-4α,18;11,16;15,16-triepoxy-neo-clerod-14-ene (scutelaterin A), (11S,13S,16S)-6α,19-diacetoxy-2β-(2′-methyl)butyryloxy-4α,18;11,16;15,16-triepoxy-neo-clerod-14-ene (scutelaterin B) and (11S,13S,15R and S)-6α,19-diacetoxy-2β-(2′-methyl)butyryloxy-4α,18;11,16;15,16-triepoxy-neo-clerodan-15-ol (scutelaterin C) by chemical and spectroscopic means. In addition, the already known neo-clerodanes ajugapitin and scutecyprol A were also found in the same source.

StereochemistryChemical structurePlant ScienceGeneral MedicineNuclear magnetic resonance spectroscopyHorticultureBiologyBiochemistryTerpenoidchemistry.chemical_compoundchemistryOrganic chemistryMoleculeSpectral analysisScutellaria laterifloraDiterpeneMolecular BiologyPhytochemistry
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Three new Spanish species of Biscutella L. (Brassicaceae) and remarks on B. valentina (L.) Heywood

2000

Abstract Three new species are described in Biscutella sect. Biscutella from the central-eastern mountains of the Iberian Peninsula B. bilbilitana Mateo & M.B. Crespo, B. segurae Mateo & M.B. Crespo, and B. conquensis Mateo & M.B. Crespo. They are characterized morphologically, ecologically and chorologically. Data separating them from B. valentina (L.) Heywood, a taxon to which they sometimes have been referred, are also reported.

TaxonEcologyChorologyBrassicaceaeTaxonomy (biology)Plant ScienceBiologybiology.organism_classificationNomenclatureEcology Evolution Behavior and SystematicsBiscutellaBotanical Journal of the Linnean Society
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ChemInform Abstract: Natural and Hemisynthetic Neoclerodane Diterpenoids from Scutellaria and Their Antifeedant Activity

2010

Covering: Up to June 2001. Previous review: on the clerodanes, Nat. Prod. Rep., 1992, 9, 243.

TerpeneTraditional medicinebiologyChemistryScutellariaGeneral Medicinebiology.organism_classificationChemInform
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Microtrichial patterns of the mesothoracic wing surface in Scutelleridae (Hemiptera)

2013

AbstractNew data on forewing microtrichial patterns are presented. Nineteen species representing 19 genera and seven subfamilies of Afrotropical Scutelleridae are investigated using scanning electron microscopy. Four types of microtrichial patterns are recognised. The taxonomic importance of these structures in the Scutelleridae is discussed.

WingbiologyPhysiologyStructural BiologyInsect ScienceZoologyScutelleridaebiology.organism_classificationMolecular BiologyHemipteraEcology Evolution Behavior and SystematicsCanadian Entomologist
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The pattern of neuroblast formation, mitotic domains and proneural gene expression during early brain development in Drosophila.

2003

In the Drosophila embryo, studies on CNS development have so far mainly focused on the relatively simply structured ventral nerve cord. In the trunk, proneural genes become expressed in small cell clusters at specific positions of the ventral neuroectoderm. A lateral inhibition process mediated by the neurogenic genes ensures that only one cell within each proneural cluster delaminates as a neural stem cell (neuroblast). Thus, a fixed number of neuroblasts is formed, according to a stereotypical spatiotemporal and segmentally repeated pattern, each subsequently generating a specific cell lineage. Owing to higher complexity and hidden segmental organisation, the mechanisms underlying the dev…

animal structuresMitosisProneural genesBiologyNeuroblastLateral inhibitionEctodermMorphogenesisAnimalsCell LineageNeurons AfferentMolecular BiologyIn Situ HybridizationGeneticsNeuronsNeuroectodermGenes HomeoboxBrainGene Expression Regulation DevelopmentalNeural stem cellDrosophila melanogasterVentral nerve cordembryonic structuresScuteNeuroscienceGanglion mother cellNeurogliaBiomarkersDevelopmental BiologyDevelopment (Cambridge, England)
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