Search results for "flor"
showing 10 items of 1665 documents
Health benefits of olive oil and its components: Impacts on gut microbiota antioxidant activities, and prevention of noncommunicable diseases
2019
There is an increasing trend in the consumption of olive oil, especially extra virgin olive oil, due to its health benefits. These health benefits are mainly correlated to health-promoting components of olive oil such as polyphenols, tocopherols, and carotenoids, positive effects of olive oil on the inhibition of foodborne pathogens, stimulation of the growth of beneficial microorganisms, and its antioxidant activity. These attributes make olive oil one of the leading healthy edible oils worldwide.The current study overviews the recent findings on the health benefits of olive oil consumption including its effects on gut microbiota, its antioxidant activity, and its ability in preventing car…
Old sleeping Sicilian beauty: seed germination in the palaeoendemic Petagnaea gussonei (Spreng.) Rauschert (Saniculoideae, Apiaceae).
2015
Petagnaea gussonei (Apiaceae) is a perennial herbaceous species endemic to northeast Sicily (Nebrodi Mountains). It is considered a remnant of the Sicilian Tertiary flora, and is endangered according to the Red List. There is no information in the literature about the germinability of its seeds, even though seed production is know to occur. The aim of this study was to obtain data to better understand seed germination of this species and its biological implications. Thus, several approaches were employed: vitality analyses, gibberellic acid supply, germination and soil microbial flora analyses via end-point and qPCR. The results suggest that seed germination occurs after ca. 1.5 years at a …
Efficacy and foliar absorption of flupyrsulfuron-methyl and prosulfocarb applied alone or in mixture on Lolium multiflorum and wheat
2001
Des melanges de flupyrsulfuron-methyle et de prosulfocarbe concus pour ameliorer la lutte contre Lolium multiflorum Lam. dans le ble (Triticum aestivum L.) ont ete etudies grâce a des essais biologiques sur plantes entieres et a des etudes de penetration foliaire. Dans les essais biologiques, le flupyrsulfuron-methyle et le prosulfocarbe etaient appliques a 6-7 doses, seuls ou en melange dans les rapports 1:400, 1:40 et 1:4 (p/p). Les courbes de reponse etaient ajustees au moyen de modeles logistiques et l'action conjuguee etait evaluee par la methode des isoboles. Dans les essais biologiques conduits en serre sur L. multiflorum, l'action conjuguee des melanges montrait une additivite de do…
The chemical composition of the aerial parts essential oil of Lonas annua (L.) Vines & Druce (Asteraceae)
2022
Lonas annua (L.) Vines & Druce (Asteraceae), commonly known as African Daisy or Yellow Ageratum is a rare therophyte native to northwestern Africa (Algeria, Morocco, and Tunisia) and Italy (Sicily and Sardinia). In the present study, the chemical composition of the essential oil from aerial parts of Lonas annua was analyzed by GC-MS. No one report has been previously published on the essential oil of this species. The results showed the presence of large quantity of two unusual metabolites 2,3-dihydrofarnesol (41.64%), and acenaphthene (36.18%). Chemotaxonomic considerations were carried out in order to confirm the phylogenetic reconstructions of Anthemideae.
A plant sociological approach for extensive green roofs in Mediterranean areas
2013
Extensive Green roofs can be an important mean for environmental mitigation if designed according to the principles of restoration ecology. Moreover, if optimally executed, properly managed and of sufficient extension, they could be assimilated to meta-populations of natural habitats, worth to be included in the biodiversity monitoring networks. The best example supporting this hypothesis is the Lake water plant Moos in Wollishofen (Zurich, Switzerland) where, on three 100 years old units of extensive green roofs, occur most of the typical flora of Mesobromion, including high density of some endangered orchid species. With this work, we propose a methodology approach for green roofs in Medi…
Live imaging of developmental processes in a living meristem of Davidia involucrata (Nyssaceae)
2014
Morphogenesis in plants is usually reconstructed by scanning electron microscopy and histology of meristematic structures. These techniques are destructive and require many samples to obtain a consecutive series of states. Unfortunately, using this methodology the absolute timing of growth and complete relative initiation of organs remain obscure. To overcome this limitation, an in vivo observational method based on Epi-Illumination Light Microscopy (ELM) was developed and tested with a male inflorescence meristem (floral unit) of the handkerchief tree Davidia involucrata Baill. (Nyssaceae). We asked whether the most basal flowers of this floral unit arise in a basipetal sequence or, altern…
Flora Matritensis,1 (Pteridophyta)
1981
La flora pteridológica de la provincia de Madrid y comarcas limítrofes consta de 24 géneros, 54 especies, siete subespecies, dos formas y doce híbridos. La obra posee claves para determinar órdenes, géneros, especies, subespecies y formas. Para cada taxon se indica el biotipo, tamaño, ecología, fitosociología, pisos bioclimáticos, corología general y regional, así como la ploidía y número de cromosomas. The pteridological flora from Madrid and surrouding areas comprehends 24 genera, 54 species, 7 subspecies, 2 forms and 12 hybrids. This paper has keys for the determination of all taxa up to the form level. Biotype, size, ecology, phytosociology, vegetation stage, general and regional and re…
Las antiquísimas rocas del Barranco de Alcotas
2003
Descripción del afloramiento de la Era primaria en el Barranco de Alcotas en Chelva y sus implicaciones socioeconómicas.
Leonīda Keirāna vēstule Ernestam Foldātam
1998
Latviešu dabaszinātnieka Leonīda Keirāna vēstule latviešu orhideju pētniekam Ernestam Foldātam, kurā viņš raksta par to, ka Daugavpils Pedagoģiskās universitātes Dabaszinātņu un matemātikas fakultātes Bioloģijas un mācīšanas metodikas katedrā 1998. gada 12. jūnijā Olga Dubrovska aizstāvēja un ieguva bakalaura grādu pedagoģijas nozarē bioloģijas mācīšanas metodikas apakšnozarē ar ļoti augstu vērtējumu par tematu "Prof. Ernesto Foldāts - latvietis, izcils Dienvidamerikas tropu floras pētnieks". Vēstulē pieminēti izmantotie informācijas avoti, cits absolvents Andrejs Balabkins, kura darbā izmantotas Ernesta Foldāta lekcijas, neliela informācija par pašu Leonīdu Keirānu. Vēstule rokrakstā uz 2 …
Latvijas indīgie augi LU Botānsikajā dārzā
2005
Latvijā savvaļā ir sastopami indīgi augi. Visvairāk to ir gundegu, čemurziežu un nakteņu dzimtā.