Search results for "botanica"
showing 10 items of 1665 documents
The ‘recent’ forests of Mount Venda (Padua, Italy): when historical cartography and archaeobotany tell quite a different story
2018
Forests, like agricultural systems and housing, are an integral part of the human landscapes. They evolve over time, not only in response to environmental factors (e.g. climate change) but also in response to developments in human society. This work on the analysis of forest dynamics in Euganean hills is the result of research carried out as part of the research programmes THISTLE (MSCA Fellowship, grant agreement: 656397) and MEMOLA (EU FP7 Project , grant agreement: 613265). The work is focused on two mountains in particular: Monte Venda and Monte della Madonna. The archaeobotanical investigations reveal the presence of ancient forests (since the 14th century) in these areas , although th…
Taxonomic notes and critical discussion on the status of Hydnum notarisii (Basidiomycota) through the evaluation of Giuseppe Inzenga's original study…
2016
The current taxonomic status of Hydnum notarisii Inzenga is here critically analyzed on the basis of Giuseppe Inzenga’s original description and of the specimens kept in his private herbarium hosted in the Istituto Agrario Castelnuovo (Palermo, Italy) and in the Herbarium of Museum of Evolution, Uppsala University, Sweden (UPS). The detailed morphological study of the original dried material through the use of compound optical and scanning electron microscopy demonstrated that this particular fungus possesses very similar features with Hericium erinaceus (Bull.) Pers.
The Nonvolatile and Volatile Metabolites of Prangos ferulacea and Their Biological Properties
2019
Abstract Prangos ferulacea (L.) Lindl. (Fam. Apiaceae), an orophilous species of eastern Mediterranean and western Asia, possesses a number of biological properties that are worthy of exploitation in different fields. Phytochemical investigations revealed the presence of coumarins, prenyl-coumarins, and furano-coumarins as the main constituents of this species, as well as several flavonoids. Among prenyl-coumarins, osthol is a promising apoptotic agent quite selective toward cancer cells. In addition, the essential oils have been extensively investigated, and several chemotypes have been identified. This work reviews the literature on this species published between 1965 and 2018, describes …
Bioactivity of essential oils in phytopathogenic and post-harvest fungi control
2017
[EN] Commercial thyme and lavender essential oils were analysed by GC/MS. Sixty-six compounds accounting for 98.6¿99.6% of total essential oil were identified. Thymol (52.14 ± 0.21%), followed by pcymene (32.24 ± 0.16%), carvacrol (3.71 ± 0.01%) and ¿-terpinene (3.34 ± 0.02%), were the main compounds in thyme essential oil, while large amounts of oxygenated monoterpenes linalool acetate (37.07 ± 0.24%) and linalool (30.16 ± 0.06%) were found in lavender one. In vitro antifungal activity of the essential oils was evaluated at 200 and 300 ¿g/mL against 10 phytopathogenic and post-harvest fungi, which significantly affect agriculture. Micelial growth inhibition was calculated for each tested f…
Medicinal Mushrooms: Bioactive Compounds, Use, and Clinical Trials
2021
Medicinal mushrooms have important health benefits and exhibit a broad spectrum of pharmacological activities, including antiallergic, antibacterial, antifungal, anti-inflammatory, antioxidative, antiviral, cytotoxic, immunomodulating, antidepressive, antihyperlipidemic, antidiabetic, digestive, hepatoprotective, neuroprotective, nephroprotective, osteoprotective, and hypotensive activities. The growing interest in mycotherapy requires a strong commitment from the scientific community to expand clinical trials and to propose supplements of safe origin and genetic purity. Bioactive compounds of selected medicinal mushrooms and their effects and mechanisms in in vitro and in vivo clinical stu…
Note citotassonomiche sul genere Thapsia L. (Apiaceae)
2008
This study aims to clarify the taxonomic states and relations within the genus Thapsia from the Mediterranean area, with particular interest to the populations growing in Sicily. The results of morphological and karyological investigations on living plants, combined with herbarium surveys and literature data, allowed us to define an updated taxonomic profile of the genus Thapsia, with the description of a new species from the island of Lampedusa (SW Sicily), named T. pelagica. Moreover a new taxonomic combination is proposed for the populations of Peloritani Mts. (NE Sicily), which are here treated as subspecies messanensis of T. garganica.
Morphological, karyological and taxonomic remarks on Ferulago nodosa (L.) Boiss. (Apiaceae)
2012
Abstract Western (Sicilian) and eastern (Balcan-aegean) populations of the Balcan-tyrrhenian Ferulago nodosa are reported to be different in some morphological characters, and were considered different species by some authors in XIX century. In this work, fruit and pollen morphologies have been compared in Sicilian and Cretan plants; also, the chromosome number of Sicilian plants has been ascertained. Preliminary results highlight a general homogeneity between the two populations, nevertheless showing significant differences in some parameters (fruit form, pollen size). For this reason, and considering the geographic disjunction of the Sicilian plants, the two populations are proposed to be…
Le Ombrellifere nella tradizione alimentare siciliana.
2011
Fetid odors in Caralluma europaea (Guss.) N.E.Br. (Apocynaceae-Asclepiadoideae): a chemical characterization
2008
THE MEANING OF ENDEMISM IN PHYTOGEOGRAPHY
2013
The definition of endemism is a relative concept, and is relative to the size of the territory and the hierarchical rank of the taxon one is referring to. The more the territory is small, less you would expect to find in it the whole areal of taxa which ranks are high as a family or an order. Here is the case to cite FAVARGER (1969): "It is the scale that creates the phenomenon." The criterion for the definition of endemism is therefore the exclusive membership to a certain geographical territory taken as a reference, not the size of the range of taxon.