New records and noteworthy data of plants, algae and fungi in SE Europe and adjacent regions, 15

This paper presents new records and noteworthy data on the following taxa in SE Europe and adjacent regions: saprotrophic fungus Geastrum morganii, Guignardia istriaca and Hypoxylon howeanum, mycorrhizal fungus Amanita friabilis and Suillus americanus, xanthophyte Vaucheria frigida, stonewort Chara hispida, liverwort Calypogeia integristipula and Ricciocarpus natans, moss Campylopus introflexus, Dicranum transsylvanicum, Tortella pseudofragilis and Trematodon ambiguus, fern Ophioglossum vulgatum subsp. vulgatum, monocots Epipactis exilis, Epipactis purpurata and Epipogium aphyllum and dicots Callitriche cophocarpa, Cornus sanguinea subsp. hungarica and Viscum album subsp. austriacum are given within SE Europe and adjacent regions

Chromosomenzahlen von Farn- und Samenpflanzen aus Deutschland 2

Die in Kochia 1 (2006) begonnene Reihe wird im vorliegenden Dokument mit den Zählungen Nummer 22 bis 45 fortgesetzt

Inhibition of Digestive Enzymes and Antioxidant Activity of Extracts from Fruits of Cornus alba, Cornus sanguinea subsp. hungarica and Cornus florida - A Comparative Study

The fruits of some Cornus species (dogwoods) are used in traditional medicine and considered potential anti-diabetic and hypolipemic agents. The aim of the study was to determine the ability of extracts from Cornus alba (CA), Cornus florida (CF), and Cornus sanguinea (CS) to inhibit digestive enzymes namely α-amylase, pancreatic lipase, and α-glucosidase, as well as isolation of compounds from plant material with the strongest effect. In addition, the phytochemical profile and antioxidant activity of extracts from three dogwoods were compared with HPLC-DAD-MS/MS and DPPH scavenging assay, respectively. Among the aqueous-ethanolic extracts, the activity of α-amylase was the most strongly inhibited by the fruit extract of CA (IC50 = 115.20 ± 14.31 μg/mL) and the activity of α-glucosidase by the fruit of CF (IC50 = 38.87 ± 2.65 μg/mL). Some constituents of CA fruit extract, such as coumaroylquinic acid, kaempferol, and hydroxytyrosol derivatives, were isolated. Among the three species of dogwood studied, the greatest biological potential was demonstrated by CA extracts, which are sources of phenolic acids and flavonoid compounds. In contrast, iridoid compounds or flavonoid glycosides found in fruits of CF or CS extracts do not play a significant role in inhibiting digestive enzymes but exert antioxidant activity

Paesaggi vegetali, biodiversità cenotica e funzionalità fluviale. Il caso del fiume Tagliamento.

2011/2012Analisi delle unità di paesaggio fitocenotico lungo il fiume Tagliamento.XXIV Ciclo197

syntaxonomy and site ecology of a central italy forest landscape

Syntaxonomy and Site Ecology of a Central Italy Forest LandscapeA phytosociological survey of a woodland located in the central part of Umbria (Central Italy) was carried out using the Braun-Blanquet method: 80 relevés were classified through cluster analysis. Nine forestsyntaxawere reported and three subassociations (Erico arboreae-Quercetum cerridis lathyretosum veneti, Aceri obtusati-Quercetum cerridis arbutetosum unedonisandCyclamino hederifolii-Quercetum ilicis quercetosum cerridis) were typified. Topographic data (altitude, aspect, slope, morphology) and pedological data (soil pH, texture and depth) were collected and a synecological analysis ofsyntaxawas performed. In order to understand the relation between environmental factors and plant communities, a Canonical Correspondence Analysis was run. The results showed soil parameters (pH, texture and depth) and altitude as the main ecological factors explaining the distribution of plant communities in the study area. The combination of topographic factors (aspect, morphology and slope angle) influences, by contrast revealed the distribution of forestsyntaxawithin homogeneous geo-pedological and bioclimatic conditions

Fundmeldungen : Neufunde - Bestätigungen - Verluste

Die Fundmeldungen in Band 24 von Botanik und Naturschutz in Hessen tragen die laufenden Nummern 1750 bis 1872 und stammen von Rolf Angersbach, Kurt Baumann, Ralph Baumgärtel, Dieter Bickler, Dirk Bönsel, Wolfgang Ehmke, Christian Feuring, Thomas Gregor, Volker Holzgreve, Karsten Horn, Heinz Kalheber, Gerwin Kasperek, Matthias Kellner, Detlef Mahn, Hans Reichert, Bernd Sauerwein, Hjalmar Thiel, Bärbel Wellmann und Jochen Wulfhorst

Chemical composition, antioxidant, and α-Glucosidase-Inhibiting activity of aqueous and hydroethanolic extracts of traditional antidiabetics from croatian ethnomedicine

Type 2 diabetes (T2D) is a chronic disease with a growing prevalence worldwide. In addition to the conventional therapy, many T2D patients use phytotherapeutic preparations. In the present study, chemical composition, antioxidant, and -glucosidase inhibiting activity of traditional antidiabetics from Croatian ethnomedicine (Achillea millefolium, Artemisia absinthium, Centaurium erythraea, Morus alba, Phaseolus vulgaris, Sambucus nigra, and Salvia officinalis) were assessed. The efficacy of water and 80% ethanol as extraction solvents for bioactive constituents was compared. HPLC analysis revealed that the prepared extracts were rich in phenols, especially rutin, ferulic, and chlorogenic acid. Antiradical (against DPPH and ABTS radicals), reducing (towards Mo6+ and Fe3+ ions), and enzyme inhibiting properties were in linear correlation with the content of phenolic constituents. Ethanolic extracts, richer in phenolic substances, showed dominant efficacy in those assays. Aqueous extracts, on the other hand, were better Fe2+ ion chelators and more active in the -carotene linoleic acid assay. Extracts from S. officinalis and A. millefolium were particularly active antioxidants and -glucosidase inhibitors. A. absinthium, another potent -glucosidase inhibitor, contained chromium, a mineral that promotes insulin action. The investigated plants contained significant amounts of minerals useful in management of T2D, with negligible amounts of heavy metals deeming them safe for human use.IP-2018-01-6504info:eu-repo/semantics/publishedVersio

Selezione dell'habitat e distruzione dell'Occhione Burhinus oedicnemus e del Succiacapre Caprimulgus europaeus nell'ambiente magredile

Le due specie Occhione e Succiacapre, sono state studiate ricercando le relazioni instaurate con l'ambiente magredile, cercando di individuare quali fossero le categorie habitat specifiche, selezionate durante il periodo riproduttivo, con lo scopo di fornire uno strumento utile per la gestione del territorio di interesse comunitario dei magredi di Pordenone e quindi contribuire alle azioni di conservazione delle specie stess

Mini lavori della Riunione scientifica del Gruppo per la Floristica, Sistematica ed Evoluzione

Raccolta dei minilavori riguardanti i contributi orali presentati durante la riunione del Gruppo per la Floristica, Sistematica ed Evoluzione a Roma il 21-22 ottobre 2016