| [on antibiotically active substances in arbutus unedo l. (strawberry tree)]. | | 1968 | 4875563 |
| bacterial colonization of the phyllosphere of mediterranean perennial species as influenced by leaf structural and chemical features. | in this study, we assessed various leaf structural and chemical features as possible predictors of the size of the phyllosphere bacterial population in the mediterranean environment. we examined eight perennial species, naturally occurring and coexisting in the same area, in halkidiki (northern greece). they are arbutus unedo, quercus coccifera, pistacia lentiscus, and myrtus communis (evergreen sclerophyllous species), lavandula stoechas and cistus incanus (drought semi-deciduous species), and ... | 2005 | 16215646 |
| antiaggregant effects of arbutus unedo extracts in human platelets. | platelet hyperaggregability plays a pivotal role in the pathogenesis of cardiovascular diseases. thrombin evokes aggregation through ca(2+) mobilization, tyrosine phosphorylation and generation of reactive oxygen species (ros). we have investigated the antiaggregant properties of arbutus unedo extracts in human platelets. changes in cytosolic ca(2+) concentration and intracellular oxidants production were registered by espectrofluorimetry using fura-2 and dichlorodihydrofluorescein, respectively ... | 2007 | 17681442 |
| antihyperglycemic activity of arbutus unedo, ammoides pusilla and thymelaea hirsuta. | the effect of the water extract (we) of three medicinal plants used as antidiabetic medication in eastern morocco (arbutus unedo: au, ammoides pusilla: ap and thymelaea hirsuta: th) was tested in rats with the oral glucose tolerance test (ogtt) and intravenous glucose tolerance test (ivgtt). in the ogtt the rats received water, glibenclamide (2 mg/kg) or we (500 mg/kg for au and 250 mg/kg for th and ap) 30 min before glucose loading (glucose: 1 g/kg). the we of au, ap and th produced a significa ... | 2007 | 17867561 |
| antidiabetic effect of some medicinal plants of oriental morocco in neonatal non-insulin-dependent diabetes mellitus rats. | the goal of the present study is to test the effect of water extract (we) of four medicinal plants used as antidiabetics in eastern morocco (arbutus unedo: au, ammoïdes pusilla: ap, thymelaea hirsuta: th, and urtica dioïca: ud). these plants are used in cooking to bring out the flavor in a dish or to complement it. the first experiment was realized in order to determine the antidiabetic effect of the we of these plants during 5 weeks' treatment. seven groups of wistar rats were used: healthy con ... | 2010 | 20154101 |
| effects of nursery preconditioning through mycorrhizal inoculation and drought in arbutus unedo l. plants. | the influence of a water deficit treatment and mycorrhizal inoculation with pisolithus tinctorius (pers.) coker and couch on the water relations, gas exchange, and plant growth in arbutus unedo l. plants was studied in order to evaluate the hardening process during the nursery period. the ability to withstand the adverse conditions after transplantation was also studied. mycorrhizal and non-mycorrhizal seedlings of a. unedo were pot-grown for 4 months in a greenhouse (nursery period), during whi ... | 2011 | 20405149 |
| vegetable and animal food sorts found in the gastric content of sardinian wild boar (sus scrofa meridionalis). | authors report results emerging from gastric content analysis from n. 96 wild boars hunted in sardinia isle, during the hunting tide (2001-2005), from november to january. mean ph of the gastric content was 3.77 +/- 0.69. mean total capacity (tc) of each stomach was 1702 +/- 680 g. mean stuff ratio (cw/tc) between the content weight (cw) and stomachs tc was 0.45. food categories found in animal stomachs were: 19 categories of vegetal species (allium spp., arbutus unedo, arisarum vulgare, avena f ... | 2007 | 17516948 |
| results of a screening programme to identify plants or plant extracts that inhibit ruminal protein degradation. | one aim of the ec framework v project, 'rumen-up' (qlk5-ct-2001-00 992), was to find plants or plant extracts that would inhibit the nutritionally wasteful degradation of protein in the rumen. a total of 500 samples were screened in vitro using 14c-labelled casein in a 30-min incubation with ruminal digesta. eight were selected for further investigation using a batch fermentation system and soya protein and bovine serum albumin as proteolysis substrates; proteolysis was monitored over 12 h by th ... | 2007 | 17445338 |
| drought changes the dynamics of trace element accumulation in a mediterranean quercus ilex forest. | we conducted a field drought manipulation experiment in an evergreen oak mediterranean forest from 1999 to 2005 to investigate the effects of the increased drought predicted for the next decades on the accumulation of trace elements that can be toxic for animals, in stand biomass, litter and soil. drought increased concentrations of as, cd, ni, pb and cr in roots of the dominant tree species, quercus ilex, and leaf cd concentrations in arbutus unedo and of phillyrea latifolia codominant shrubs. ... | 2007 | 17137692 |
| chemical composition of fatty acid and unsaponifiable fractions of leaves, stems and roots of arbutus unedo and in vitro antimicrobial activity of unsaponifiable extracts. | the chemical composition of the fatty acid and unsaponifiable fractions of the leaves, stems and roots of arbutus unedo l. were determined using gas chromatography and gas chromatography-mass spectrometry. the fatty acid fractions of the leaves, stems and roots contained 38.5%, 31.3% and 14.1% palmitic acid, respectively, along with other long-chain fatty acids (up to c22). the chemical composition of the unsaponifiable fractions differed: the leaf and stem fractions contained high levels of ali ... | 2010 | 20734946 |
| role of species diversity and secondary compound complementarity on diet selection of mediterranean shrubs by goats. | goats foraging on mediterranean shrubs containing secondary compounds (toxins) may consume a variety of shrubs that contain different phytotoxins, thereby increasing shrub intake and avoiding toxicosis. we conducted eight experiments to examine whether goats offered different mixtures of shrubs containing different phytotoxins (tannins and saponins) would consume more shrub biomass than goats offered one shrub a single phytotoxin (tannin or saponin). in the first three experiments, goats fed a m ... | 2006 | 16770718 |
| effects of extracts and tannins from arbutus unedo leaves on rat platelet aggregation. | many cardiovascular diseases such as arterial hypertension are associated with an increase in blood platelet activity. arbutus unedo (ericaceae) is a medicinal plant reputed to treat arterial hypertension, so the present study was undertaken in order to determine the antiaggregant effect. the crude aqueous extract showed an inhibition of thrombin-induced platelet aggregation (ic50 = 1.8 +/- 0.09 g/l, n = 10). the subsequent extraction of arbutus unedo leaves by successive solvents showed that th ... | 2006 | 16444667 |
| diversity and specificity of ectomycorrhizal fungi retrieved from an old-growth mediterranean forest dominated by quercus ilex. | we analysed the ectomycorrhizal (ecm) fungal diversity in a mediterranean old-growth quercus ilex forest stand from corsica (france), where arbutus unedo was the only other ecm host. on a 6400 m2 stand, we investigated whether oak age and host species shaped below-ground ecm diversity. ectomycorrhizas were collected under q. ilex individuals of various ages (1 yr seedlings; 3-10 yr saplings; old trees) and a. unedo. they were typed by its-rflp analysis and identified by match to rflp patterns of ... | 2005 | 15869659 |
| tannins and catechin gallate mediate the vasorelaxant effect of arbutus unedo on the rat isolated aorta. | this study examined the vascular effect of arbutus leaves (aqueous extract) and described the isolation of several fractions responsible for their vasorelaxant activity. the aqueous extract (ae) of leaves was tested on rat aortic rings precontracted with 0.1 microm noradrenaline. at 10(-2) g/l, ae produced an endothelium dependent relaxation of 66% +/- 5%, (n = 8). the leaves of arbutus were then extracted successively with different solvents and the methanol extract was the most active. when ta ... | 2004 | 15597331 |
| platelet anti-aggregant property of some moroccan medicinal plants. | it is known that blood platelets may present some dysfunction linked to cardiovascular pathologies such as arterial hypertension. the aim of this work is to examine the in vitro anti-aggregant effect of five medicinal plants among which three were reported as antihypertensive in oriental morocco: arbutus unedo (ericaceae), urtica dioïca (urticaceae), and petroselinum crispum (apiaceae). the two other plants were cistus ladaniferus (cistaceae) and equisetum arvense (equisetaceae). the results obt ... | 2004 | 15325737 |
| water sources and water-use efficiency in mediterranean coastal dune vegetation. | in coastal environments plants have to cope with various water sources: rainwater, water table, seawater, and mixtures. these are usually characterized by different isotopic signatures ( (18)o/ (16)o and d/h ratios). xylem water reflects the isotopic compositions of the water sources. additionally, water-use efficiency (wue) can be assessed with carbon isotope discrimination (delta) analyses. gas exchange, delta of leaf dry matter, and isotopic composition (delta (18)o) of xylem water were measu ... | 2004 | 15143444 |
| partitioning of water and nitrogen in co-occurring mediterranean woody shrub species of different evolutionary history. | we studied the interspecific and intraspecific variation in the development of water stress and in the use of different water and nitrogen sources during the spring (wet season) and summer (dry season) in a shrub community in ne spain. we measured shoot water potentials, stable deuterium isotopic composition (delta d) of xylem sap, leaf mass per area, leaf n and c concentrations, gas exchange, leaf delta(13)c, and leaf delta(15)n of the dominant species (quercus coccifera, arbutus unedo, pistaci ... | 2003 | 12856202 |
| sap flow of three co-occurring mediterranean woody species under varying atmospheric and soil water conditions. | we studied the seasonal patterns of water use in three woody species co-occurring in a holm oak forest in northeastern spain. the three species studied, quercus ilex l., phillyrea latifolia l. and arbutus unedo l., constitute more than 99% of the total basal area of the forest. the study period included the dry seasons of 1999 and 2000. water use was estimated with granier-type sap flux sensors. standard meteorological variables, soil water content and leaf water potentials were also monitored. ... | 2003 | 12839728 |
| seasonal embolism and xylem vulnerability in deciduous and evergreen mediterranean trees influenced by proximity to a carbon dioxide spring. | we investigated how proximity to natural co(2) springs affected the seasonal patterns of xylem embolism in quercus ilex l., quercus pubescens willd., fraxinus ornus l., populus tremula l. and arbutus unedo l., which differ in leaf phenology and wood anatomy. xylem embolism was evaluated in both artificially dehydrated branches and in hydrated apical branches collected at monthly intervals during a 20-month sampling period. initial specific hydraulic conductivity was also evaluated. we found spec ... | 1999 | 12651570 |
| identification, measurement and interpretation of tree rings in woody species from mediterranean climates. | we review the literature dealing with mediterranean climate, vegetation, phenology and ecophysiology relevant to the understanding of tree-ring formation in mediterranean regions. tree rings have been used extensively in temperate regions to reconstruct responses of forests to past environmental changes. in mediterranean regions, studies of tree rings are scarce, despite their potential for understanding and predicting the effects of global change on important ecological processes such as desert ... | 2003 | 12620063 |
| arbutus unedo induces endothelium-dependent relaxation of the isolated rat aorta. | arbutus unedo l. (ericaceae) is used in oriental morocco to treat arterial hypertension. we studied its vasodilator effect and mechanisms of action in vitro. the root aqueous extract of arbutus (0.25 mg/ml) produced a relaxation of noradrenaline-precontracted ring preparations of rat aorta with intact endothelium. relaxation by arbutus did not occur in specimens without endothelium and was inhibited by pretreatment with 100 microm n(g)-methyl-l-arginine (l-nma), 10 microm methylene blue or 50 mi ... | 2002 | 12237817 |
| seasonal patterns of non-terpenoid c6-c10 voc emission from seven mediterranean woody species. | the seasonal pattern of non-terpenoid c6-c10 voc emission by seven mediterranean woody species (bupleurum fruticosum, cistus albidus, pinus halepensis, arbutus unedo, erica arborea, quercus coccifera, and q. ilex) was studied under field conditions. branch chamber samples were sorbed on carbotrap and analyzed by thermal desorption in combination with gc-ms. these non-terpenoid c6-c10 voc emissions were large, almost of similar magnitude to those of terpenes. overall, maximum values were recorded ... | 2001 | 11592412 |
| seasonal patterns of terpene content and emission from seven mediterranean woody species in field conditions. | the seasonal pattern of terpene content and emission by seven mediterranean woody species was studied under field conditions. emission rates were normalized at 30 degrees c and 1000 µmol.m.s pfd (photosynthetic photon flux density). bupleurum fruticosum, pinus halepensis, and cistus albidus stored large amounts of terpenes (0.01-1.77% [dry matter]) with maximum values in autumn and minimum values in spring. they emitted large amounts of terpenes (2-40 µg.g dm.h), but with no clear seasonal trend ... | 2000 | 10636836 |
| determination and comparison of chemical characteristics of arbutus unedo l. and arbutus andrachnae l. (family ericaceae) fruits. | the fruits and leaves of arbutus species are well known in folk medicine as antiseptics, diuretics, and laxatives in many parts of turkey. some chemical properties including ph, soluble solid content, titratable acidity, protein, moisture, ash, ascorbic acid, fructose, glucose, sucrose, total phenols, total antioxidant activity, and minerals were determined in fully matured arbutus unedo l. and arbutus andrachnae l. fruits collected from different sites of canakkale, turkey in 2006 and 2007. tot ... | 2010 | 20553155 |
| tryptophan depletion and formation of alpha-aminoadipic and gamma-glutamic semialdehydes in porcine burger patties with added phenolic-rich fruit extracts. | the effect of added fruit extracts on the oxidation of muscle proteins in porcine burger patties subjected to cooking and chill storage was studied. extracts from arbutus berries (arbutus unedo l., au), common hawthorns (crataegus monogyna l., cm), dog roses (rosa canina l., rc), and elm-leaf blackberries (rubus ulmifolius schott, ru) were prepared, characterized, added to burger patties (3% of total weight), and evaluated as inhibitors of protein oxidation. negative (no added extract, c) and po ... | 2010 | 20170109 |
| in vitro activity of arbutus unedo leaf extracts against trichomonas vaginalis trophozoites. | trichomonas vaginalis (t. vaginalis) is a flagellated protozoan commonly causing sexually transmitted disease. t. vaginalis infections are treated with a 5-nitroimidazole derivate. however, drug resistance has been known to occur for a long time and new alternatives are under investigation. arbutus unedo is a wild plant mainly growing in maquis and rocky places of the seaboard in southern europe. in our study, ethanolic, water, hexane and ethyl acetate extracts of arbutus unedo leaves were teste ... | 2009 | 20101573 |
| in vitro activity of arbutus unedo against leishmania tropica promastigotes. | pentavalent antimonials are the first choice for the treatment of anthroponotic cutaneous leishmaniasis (acl) in health centers in turkey, however in rural areas, traditional plants may be preferred for the treatment of lesions. in recent years a number of papers are published related to the natural products especially plant derivates. our aim is to investigate the antileishmanial effect of arbutus unedo which is a wild plant mainly grown in maquis and rocky places of the seabord in south europe ... | 2009 | 19598085 |
| methyl syringate: a chemical marker of asphodel (asphodelus microcarpus salzm. et viv.) monofloral honey. | during the liquid chromatographic study of the phenolic fraction of monofloral honeys was detected in the asphodel honey ( asphodelus microcarpus salzm. et viv.) chromatogram a distinctive peak not detected in other monofloral honeys such as arbutus unedo l., hedysarum coronarium , eucalyptus spp., and galactites tomentosa . after thin layer chromatography (tlc) purification and characterization by nmr and lc-ms/ms, the compound was identified as methyl syringate (msyr) and confirmed against an ... | 2009 | 19309074 |
| facilitated establishment of quercus ilex in shrub-dominated communities within a mediterranean ecosystem: do mycorrhizal partners matter? | positive plant-plant interaction is a widespread phenomenon, especially in harsh environments, which can contribute to secondary successions. here, we investigated whether arbutus unedo positively influences quercus ilex establishment in shrub communities by abiotic and/or biotic interactions in a mediterranean forest ecosystem, where we previously showed that a. unedo and q. ilex share numerous species of mycorrhizal fungi. in a first field experiment, patterns of q. ilex survivorship were docu ... | 2009 | 19175678 |
| aqueous extract of arbutus unedo inhibits stat1 activation in human breast cancer cell line mda-mb-231 and human fibroblasts through shp2 activation. | arbutus unedo l. has been for a long time employed in traditional and popular medicine as an astringent, diuretic, urinary anti-septic, and more recently, in the therapy of hypertension and diabetes. signal transducer and activator of transcription 1 (stat1) is a fascinating and complex protein with multiple yet contrasting transcriptional functions. although activation of this nuclear factor is finely regulated in order to control the entire inflammatory process, its hyper-activation or time-sp ... | 2008 | 18473914 |
| protective effect of arbutus unedo aqueous extract in carrageenan-induced lung inflammation in mice. | in the present study, we show that an aqueous extract of arbutus unedo l. (aue), a mediterranean endemic plant widely employed as an astringent, diuretic and urinary anti-septic, in vitro down-regulates the expression of some inflammatory genes, such as those encoding inducible nitric oxide synthase (inos) and intracellular adhesion molecule-(icam)-1, exerting a inhibitory action on both ifn-gamma-elicited stat1 activation and il-6-elicited stat3 activation. to evaluate further the effect of aue ... | 2008 | 18249557 |
| arbutus unedo prevents cardiovascular and morphological alterations in l-name-induced hypertensive rats part i: cardiovascular and renal hemodynamic effects of arbutus unedo in l-name-induced hypertensive rats. | hypertension induced by nitric oxide synthase inhibition is associated with functional abnormalities of the heart and kidney. the aim of the present study was to investigate whether chronic treatment with arbutus unedo leaf (aul) or root (aur) aqueous extracts can prevent these alterations. six groups of rats were used: control group received tap water; n(g)-nitro-l-arginine methyl-ester (l-name) group treated with l-name at 40 mg/kg/day; aul and aur groups received simultaneously l-name (40 mg/ ... | 2008 | 18191352 |
| quantitative analysis of arbutin and hydroquinone in strawberry tree (arbutus unedo l., ericaceae) leaves by gas chromatography-mass spectrometry. | the phenolic glycoside arbutin and its metabolite with uroantiseptic activity hydroquinone occur naturally in the leaves of various medicinal plants and spices. in this study, an extraction procedure coupled with gas chromatography-mass spectrometry (gc-ms) was developed to determine arbutin and hydroquinone content in strawberry tree (arbutus unedo l., ericaceae) leaves. the method showed good linearity (r2>0.9987) in the tested concentration range (0.5-200 μg ml(-1)), as well as good precision ... | 2015 | 26444340 |
| phytosociological and ecological structure of mediterranean enclaves along the stream valleys in inner parts of black sea region. | in this study phytosociological structure of mediterranean enclaves which occured along the stream valleys in inner parts of black sea region was investigated. pinus brutia var. brutia and quercus coccifera are the most widespread communities in the study area. pinus pinea, arbutus andrachne, arbutus unedo, fontanesia philliraeoides subsp. philliraeoides and olea europaea l. var sylvestris have a restricted distribution in inner parts of black sea region as compared to p. brutia and q. coccifera ... | 2010 | 20648812 |
| characterization of selected wild mediterranean fruits and comparative efficacy as inhibitors of oxidative reactions in emulsified raw pork burger patties. | in the present study, water, ethanolic, and methanolic extracts from seven selected wild fruits originally from the mediterranean area, namely, strawberry tree ( arbutus unedo l., au), azarole ( crataegus azarolus l., ca), common hawthorn ( crataegus monogyna l., cm), blackthorn ( prunus spinosa l., ps), dog rose ( rosa canina l., rc), elm-leaf blackberry ( rubus ulmifolius schott, ru), and rowan ( sorbus aucuparia l., sa), were analyzed for the total amount and profile of phenolic compounds and ... | 2010 | 20681673 |
| new remarkable records of microfungi from sardinia (italy). | in june 2009 we organized a botanical student excursion to the eastern part of sardinia, italy. on this occasion we were able to collect and identify over 80 species of microfungi growing on higher plants. the collecting sites were spread over a large area, among them were la caletta, capo comino, monte albo, cala gonone, monte maccione, san teodoro, capo testa. the collected microfungi were parasitic or saprophytic; basidiomycotina (uredinales), ascomycotina and deuteromycotina (hyphomycetes, c ... | 2010 | 21534478 |
| comparative antihemolytic and radical scavenging activities of strawberry tree (arbutus unedo l.) leaf and fruit. | the present study reports the antioxidant properties of arbutus unedo l. leaf and fruit extracts using different in vitro assays including (i) reducing power, (ii) scavenging effect on dpph free radicals, and (iii) inhibitory effect on aaph-induced hemolysis and lipid peroxidation in human erythrocytes. all assays demonstrated antioxidant efficiency for a. unedo l. aqueous extracts, being consistently higher in the leaf. ec(50) values for reducing power and dpph radical scavenging activities wer ... | 2011 | 21703325 |
| screening of antimicrobial activity of cistus ladanifer and arbutus unedo extracts. | in this work, the in vitro antimicrobial activity of different crude extracts obtained from cistus ladanifer l. and arbutus unedo l. was investigated. the ethanol, methanol and acetone/water extracts of cistus ladanifer and arbutus unedo were prepared using different extraction methods and their antimicrobial activities against reference strains, including three gram-positive, five gram-negative and three yeasts, and against clinical isolates of helicobacter pylori and methicillin-resistant stap ... | 2011 | 22077559 |
| antioxidant capacity and vasodilatory properties of mediterranean food: the case of cannonau wine, myrtle berries liqueur and strawberry-tree honey. | the aim of this work was to use different assays to evaluate the antioxidant and vasodilatory properties of three typical food products from the mediterranean area and to correlate these activities with their phenolic content. for this purpose, red wines cannonau, liqueurs obtained by cold maceration of myrtle (myrtus communis l.) berries and bitter honeys obtained from strawberry-tree flowers (arbutus unedo l.) were analysed. the total phenolic (tp) content was measured spectrophotometrically w ... | 2012 | 23692754 |
| xylem hydraulic properties of roots and stems of nine mediterranean woody species. | we studied the hydraulic architecture and water relations of nine co-occurring woody species in a spanish evergreen oak forest over the course of a dry season. our main objectives were to: (1) test the existence of a trade-off between hydraulic conductivity and security in the xylem, and (2) establish the safety margins at which the species operated in relation to hydraulic failure, and compare these safety margins between species and tissues (roots vs. stems). our results showed that the relati ... | 2002 | 24599365 |
| secondary metabolites from the endophytic fungus talaromyces pinophilus. | endophytic fungi have a great influence on plant health and growth, and are an important source of bioactive natural compounds. organic extracts obtained from the culture filtrate of an endophytic strain of talaromyces pinophilus isolated from strawberry tree (arbutus unedo) were studied. metabolomic analysis revealed the presence of three bioactive metabolites, the siderophore ferrirubin, the platelet-aggregation inhibitor herquline b and the antibiotic 3-o-methylfunicone. the latter was the ma ... | 2017 | 28278635 |
| phytotherapy of hypertension and diabetes in oriental morocco. | in order to select the main medicinal plants used in folk medicine to treat arterial hypertension and/or diabetes, a survey was undertaken in different areas of oriental morocco. the patients (370 women and 256 men) were divided into three groups: diabetics (61%), hypertensives (23%) and hypertensive diabetic persons (16%). on average, 67.51% of patients regularly use medicinal plants. this proportion is perceptibly the same in all groups and does not depend on sex, age and socio-cultural level. ... | 1997 | 9324004 |
| riboflavin and lumichrome in dalmatian sage honey and other unifloral honeys determined by lc-dad technique. | riboflavin (vitamin b(2)) and its metabolite lumichrome were quantified in 117 samples from 11 unifloral honeys types (arbutus unedo l., asphodelus microcarpus salzm. et viv., citrus spp., eucalyptus spp., hedysarum coronarium l., castanea sativa l. honeydew, mentha spp., paliurus spina-christi., salix spp., salvia officinalis l., satureja spp.). the quantification of these two compounds was performed by lc-dad method which does not require sample purification. the proposed method in our study h ... | 2012 | 22953948 |
| characterization of tuber borchii and arbutus unedo mycorrhizas. | for the first time, arbutoid mycorrhizas established between tuber borchii and arbutus unedo were described. analyzed mycorrhizas were from one t. borchii natural truffle ground, dominated by pinus pinea, as well as synthesized in greenhouse conditions. a. unedo mycorrhizas presented some typical characteristics of ectomycorrhizas of t. borchii. however, as in arbutoid mycorrhizas, ramification was cruciform and intracellular colonization in epidermal cells was present. the ability of t. borchii ... | 2014 | 24535602 |
| analysis of pollen and nectar of arbutus unedo as a food source for bombus terrestris (hymenoptera: apidae). | the mineral, total amino acid, and sterol compositions of pollen collected by apis mellifera l. were compared with the pollen of a plant consumed by bombus terrestris (l.): arbutus unedo l. this plant provides the predominant food resource for the main autumn generation of b. terrestris in southern france. honey bees also forage on this plant, although only for nectar. the mineral composition of 30 pollen samples collected by honey bees is close to the presently known requirements of a. mellifer ... | 2005 | 16022289 |
| effects of methanol extracts from roots, leaves, and fruits of the lebanese strawberry tree (arbutus andrachne) on cardiac function together with their antioxidant activity. | several plant-derived natural products have been used in clinical phase for applications in neurological, cardiovascular, and inflammatory diseases. arbutus andrachne l. (ericacea) is an evergreen shrub native to the mediterranean region. traditionally, the fruits and leaves of arbutus tree are well known and used as antiseptics, diuretics, blood tonic, and laxatives. | 2016 | 26511200 |
| genetic diversity and divergence at the arbutus unedo l. (ericaceae) westernmost distribution limit. | mediterranean forests are fragile ecosystems vulnerable to recent global warming and reduction of precipitation, and a long-term negative effect is expected on vegetation with increasing drought and in areas burnt by fires. we investigated the spatial distribution of genetic variation of arbutus unedo in the western iberia peninsula, using plastid markers with conservation and provenance regions design purposes. this species is currently undergoing an intense domestication process in the region, ... | 2017 | 28384294 |
| diversity of fungal assemblages in roots of ericaceae in two mediterranean contrasting ecosystems. | the plants belonging to the ericaceae family are morphologically diverse and widely distributed groups of plants. they are typically found in soil with naturally poor nutrient status. the objective of the current study was to identify cultivable mycobionts from roots of nine species of ericaceae (calluna vulgaris, erica arborea, erica australis, erica umbellate, erica scoparia, erica multiflora, arbutus unedo, vaccinium myrtillus, and vaccinium corymbosum). the sequencing approach was used to am ... | 2017 | 28302364 |
| understanding of human metabolic pathways of different sub-classes of phenols from arbutus unedo fruit after an acute intake. | arbutus unedo is a small mediterranean fruit, commonly named strawberry tree, which is a rich source of different sub-classes of phenolic compounds, the more representative being the gallic acid derivatives, including its mono and oligomeric forms esterified with quinic and shikimic acids. in addition, galloyl derivatives, particularly gallotannins, described in a. unedo, are part of a very selective phenolic group, present in a reduced number of plant-products. the aim of the present study is t ... | 2016 | 26960019 |
| stability and metabolism of arbutus unedo bioactive compounds (phenolics and antioxidants) under in vitro digestion and colonic fermentation. | the natural antioxidants of arbutus unedo highlight the importance of this fruit as natural source of bioactive compounds. in the present study, to evaluate the stability of phenolic compounds, ascorbic acid and fat-soluble antioxidants (α-tocopherol, β-carotene and lutein), in vitro gastrointestinal digestion was applied to a. unedo fruit. after that, the non-absorbable fraction was anaerobically incubated with human faeces and the metabolic pathway for gallotannins, ellagitannins, flavan-3-ols ... | 2016 | 26868556 |
| exploring biodiversity in the bacterial community of the mediterranean phyllosphere and its relationship with airborne bacteria. | we studied the structure and diversity of the phyllosphere bacterial community of a mediterranean ecosystem, in summer, the most stressful season in this environment. to this aim, we selected nine dominant perennial species, namely arbutus unedo, cistus incanus, lavandula stoechas, myrtus communis, phillyrea latifolia, pistacia lentiscus, quercus coccifera (woody), calamintha nepeta, and melissa officinalis (herbaceous). we also examined the extent to which airborne bacteria resemble the epiphyt ... | 2012 | 22544345 |
| effects of hot air and freeze drying methods on antioxidant activity, colour and some nutritional characteristics of strawberry tree (arbutus unedo l) fruit. | antioxidant activity, colour and some nutritional properties of hot air and freeze-dried strawberry tree (arbutus unedo l.) fruits were investigated. additionally, the effects of two pre-treatments, namely ethyl oleate and water blanching, were compared in terms of drying characteristics. for determination of antioxidant activities in ethanol extracts, two different analytical methods were used: 1,1-diphenyl-2-picrylhydrazyl scavenging activity and β-carotene bleaching activity. as a result, the ... | 2012 | 22522307 |
| pectic polysaccharides are attacked by hydroxyl radicals in ripening fruit: evidence from a fluorescent fingerprinting method. | many fruits soften during ripening, which is important commercially and in rendering the fruit attractive to seed-dispersing animals. cell-wall polysaccharide hydrolases may contribute to softening, but sometimes appear to be absent. an alternative hypothesis is that hydroxyl radicals ((•)oh) non-enzymically cleave wall polysaccharides. we evaluated this hypothesis by using a new fluorescent labelling procedure to 'fingerprint' (•)oh-attacked polysaccharides. | 2016 | 26865506 |
| population structure of a widespread species under balancing selection: the case of arbutus unedo l. | arbutus unedo l. is an evergreen shrub with a circum-mediterranean distribution that also reaches the eurosiberian region in northern iberia, atlantic france, and a disjunct population in southern ireland. due to the variety of climatic conditions across its distribution range, the populations of a. unedo were expected to display local adaptation. conversely, common garden experiments revealed that diverse genotypes from a range of provenances produce similar phenotypes through adaptive plastici ... | 2015 | 26793231 |
| carotenoid composition of strawberry tree (arbutus unedo l.) fruits. | the carotenoid composition of strawberry tree (arbutus unedo) fruits has been characterised in detail and quantified for the first time. according to the total carotenoid content (over 340 μg/g dw), mature strawberry tree berries can be classified as fruits with very high carotenoid content (>20 μg/g dw). (all-e)-violaxanthin and 9z-violaxanthin were found to be the major carotenoid pigments, accounting for more than 60%, responsible for the bright colour of the flesh of ripe fruits. in addition ... | 2016 | 26775958 |
| phylogeography of a widespread species: pre-glacial vicariance, refugia, occasional blocking straits and long-distance migrations. | phylogeographic studies give us the opportunity to reconstruct the historical migrations of species and link them with climatic and geographic variation. they are, therefore, a key tool to understanding the relationships among biology, geology and history. one of the most interesting biogeographical areas of the world is the mediterranean region. however, in this area, the description of concordant phylogeographic patterns is quite scarce, which limits the understanding of evolutionary patterns ... | 2016 | 26768603 |
| somatic embryogenesis induction and plant regeneration in strawberry tree (arbutus unedo l.). | somatic embryogenesis is a powerful tool both for cloning and studies of genetic transformation and embryo development. most protocols for somatic embryogenesis induction start from zygotic embryos or embryonic-derived tissues which do not allow the propagation of elite trees. in the present study, a reliable protocol for somatic embryogenesis induction from adult trees of strawberry tree is described. leaves from in vitro proliferating shoots were used to induce somatic embryo formation on a me ... | 2016 | 26619869 |
| interactive effects of uv radiation and reduced precipitation on the seasonal leaf phenolic content/composition and the antioxidant activity of naturally growing arbutus unedo plants. | the effects of uv radiation and rainfall reduction on the seasonal leaf phenolic content/composition and antioxidant activity of the mediterranean shrub arbutus unedo were studied. naturally growing plants of a. unedo were submitted to 97% uv-b reduction (uva), 95% uv-a+uv-b reduction (uv0) or near-ambient uv levels (uvba) under two precipitation regimes (natural rainfall or 10-30% rainfall reduction). total phenol, flavonol and flavanol contents, levels of eight phenols and antioxidant activity ... | 2015 | 26562808 |
| low among-provenance differences in structural and functional plasticity in response to nutrients in saplings of the circum-mediterranean tree arbutus unedo l. | the mediterranean region is an area of special interest for conservation where the incidence of multiple drivers of global change is expected to increase. one of the factors predicted to change is soil-nutrient availability, an essential factor for plant growth. thus, study of the effects of variation in this parameter is especially relevant in species with a circum-mediterranean distribution, such as arbutus unedo l., in which the different provenances grow in different habitats, which must dif ... | 2015 | 26377872 |
| mycorrhizal synthesis between lactarius deliciosus and arbutus unedo l. | arbutoid mycorrhizae were synthesized in vitro between arbutus unedo l. and two isolates of lactarius deliciosus. the fungal isolates were obtained from sporocarps collected under pinus sylvestris and in a mixed forest stand of quercus suber and pinus pinea. synthesis tubes filled with a mixture of sterilized peat, vermiculite, and perlite imbibed with nutrient solution were used. two inoculation methods using solid and liquid media were tested. shoots from an adult selected clone of a. unedo we ... | 2016 | 26215114 |
| contrasting impacts of continuous moderate drought and episodic severe droughts on the aboveground-biomass increment and litterfall of three coexisting mediterranean woody species. | climate change is predicted to increase the aridity in the mediterranean basin and severely affect forest productivity and composition. the responses of forests to different timescales of drought, however, are still poorly understood because extreme and persistent moderate droughts can produce nonlinear responses in plants. we conducted a rainfall-manipulation experiment in a mediterranean forest dominated by quercus ilex, phillyrea latifolia, and arbutus unedo in the prades mountains in souther ... | 2015 | 26149833 |
| arbutin content and antioxidant activity of some ericaceae species. | quantitative analyses and investigation of antioxidant activity of herb and dry ethanolic extracts of five species from ericaceae family (arbutus unedo l., bruckentalia spiculifolia rchb., calluna vulgaris salisb., erica arborea l. and erica carnea l.) were performed. total polyphenols, tannins and flavonoids were determined spectrophotometrically and arbutin content was measured both spectrophotometrically and by hplc coupled with dad detection. antioxidative properites of the ethanolic extract ... | 2009 | 19947168 |
| bioactive phytochemicals from wild arbutus unedo l. berries from different locations in portugal: quantification of lipophilic components. | the lipophilic composition of wild arbutus unedo l. berries, collected from six locations in penacova (center of portugal), as well as some general chemical parameters, namely total soluble solids, ph, titratable acidity, total phenolic content and antioxidant activity was studied in detail to better understand its potential as a source of bioactive compounds. the chemical composition of the lipophilic extracts, focused on the fatty acids, triterpenoids, sterols, long chain aliphatic alcohols an ... | 2015 | 26110390 |
| seasonal variability of foliar photosynthetic and morphological traits and drought impacts in a mediterranean mixed forest. | the mediterranean region is a hot spot of climate change vulnerable to increased droughts and heat waves. scaling carbon fluxes from leaf to landscape levels is particularly challenging under drought conditions. we aimed to improve the mechanistic understanding of the seasonal acclimation of photosynthesis and morphology in sunlit and shaded leaves of four mediterranean trees (quercus ilex l., pinus halepensis mill., arbutus unedo l. and quercus pubescens willd.) under natural conditions. vc,max ... | 2015 | 25836361 |
| plant performance on mediterranean green roofs: interaction of species-specific hydraulic strategies and substrate water relations. | recent studies have highlighted the ecological, economic and social benefits assured by green roof technology to urban areas. however, green roofs are very hostile environments for plant growth because of shallow substrate depths, high temperatures and irradiance and wind exposure. this study provides experimental evidence for the importance of accurate selection of plant species and substrates for implementing green roofs in hot and arid regions, like the mediterranean area. experiments were pe ... | 2015 | 25603968 |
| whose truffle is this? distribution patterns of ectomycorrhizal fungal diversity in tuber melanosporum brûlés developed in multi-host mediterranean plant communities. | in the mediterranean region, patches of vegetation recovering from disturbance and transiently dominated by shrubs produce one of the world's most prized fungi, the black truffle (tuber melanosporum). in these successional plant communities, we have fragmentary knowledge of the distribution of t. melanosporum in space among ectomycorrhizal (ecm) host species and in time. molecular identification of hosts (restriction fragment length polymorphism) and fungi (internal transcribed spacer sequencing ... | 2015 | 25522815 |
| melissopalynological and volatile analysis of honeys from corsican arbutus unedo habitat. | thirty corsican "autumn maquis" honeys were characterized by the typical combination of autumnal taxa: arbutus unedo, hedera helix, smilax aspera, rosmarinus officinalis, and two asteraceae pollen forms. corsican origin was characterized by the diversity of the taxa's biogeographical origins and significant presence of castanea sativa and quercus sp. volatile fractions of "autumn maquis" honeys were dominated by isophorone and 3,4,5-trimethylphenol. the latter is reported in a. unedo honey for t ... | 2014 | 25522552 |
| the combined effects of a long-term experimental drought and an extreme drought on the use of plant-water sources in a mediterranean forest. | vegetation in water-limited ecosystems relies strongly on access to deep water reserves to withstand dry periods. most of these ecosystems have shallow soils over deep groundwater reserves. understanding the functioning and functional plasticity of species-specific root systems and the patterns of or differences in the use of water sources under more frequent or intense droughts is therefore necessary to properly predict the responses of seasonally dry ecosystems to future climate. we used stabl ... | 2015 | 25359123 |
| arbutus unedo l.: chemical and biological properties. | arbutus unedo l. (strawberry tree) has a circum-mediterranean distribution, being found in western, central and southern europe, north-eastern africa (excluding egypt and libya) and the canary islands and western asia. fruits of the strawberry tree are generally used for preparing alcoholic drinks (wines, liqueurs and brandies), jams, jellies and marmalades, and less frequently eaten as fresh fruit, despite their pleasing appearance. an overview of the chemical composition of different parts of ... | 2014 | 25271425 |
| balanced gene losses, duplications and intensive rearrangements led to an unusual regularly sized genome in arbutus unedo chloroplasts. | completely sequenced plastomes provide a valuable source of information about the duplication, loss, and transfer events of chloroplast genes and phylogenetic data for resolving relationships among major groups of plants. moreover, they can also be useful for exploiting chloroplast genetic engineering technology. ericales account for approximately six per cent of eudicot diversity with 11,545 species from which only three complete plastome sequences are currently available. with the aim of incre ... | 2013 | 24260278 |
| direct chromatographic methods for the rapid determination of homogentisic acid in strawberry tree (arbutus unedo l.) honey. | two rapid and direct chromatographic methods based on reverse phase-high performance liquid chromatography (rp-hplc) and ion chromatography (ic) were developed for the determination of homogentisic acid (ha) in honey. this is the marker of the botanic origin of strawberry tree honey. the methods were validated and tested using 22 samples from sardinia, italy. the ic method is faster than the rp-hplc one (6 min versus 13 min of total run), but it is slightly less sensitive (the limit of detection ... | 2005 | 16196135 |
| bioactivity of different enriched phenolic extracts of wild fruits from northeastern portugal: a comparative study. | arbutus unedo, prunus spinosa, rosa micrantha and rosa canina are good sources of phenolic compounds, including anthocyanins. these compounds have potent antioxidant properties, which have been related to anticancer activity. herein, the in vitro antioxidant and antitumor properties of enriched phenolic extracts (non-anthocyanin phenolic compounds enriched extract- pe and anthocyanins enriched extract- ae) of the mentioned wild fruits were evaluated and compared. pe gave higher bioactive propert ... | 2014 | 24243401 |
| strawberry-tree honey induces growth inhibition of human colon cancer cells and increases ros generation: a comparison with manuka honey. | honey is a natural product known to modulate several biological activities including cancer. the aim of the present study was to examine the phytochemical content and the antioxidant activity of strawberry tree (arbutus unedo) honey (sth) and its cytotoxic properties against human colon adenocarcinoma (hct-116) and metastatic (lovo) cell lines in comparison with manuka (leptospermum scoparium) honey (mh). several unifloral sth and mh were analyzed for their phenolic, flavonoid, amino acid and pr ... | 2017 | 28287469 |
| quantitative determination of alpha-tocopherol in arbutus unedo by tlc-densitometry and colorimetry. | a quantitative determination of alpha-tocopherol in arbutus unedo leaves was established by tlc-densitometry and colorimetry. data obtained by tlc-densitometry were compared with those obtained by colorimetry. also, the alpha-tocopherol content in leaves collected at different times of the year was studied comparatively. the highest amount of alpha-tocopherol was found in the march collection. | 2001 | 11543963 |
| homogentisic acid: a phenolic acid as a marker of strawberry-tree (arbutus unedo) honey. | analysis of organic acids in strawberry-tree (arbutus unedo) honey showed the presence of an unknown acid as the main constituent. this compound was isolated and identified as homogentisic acid (2, 5-dihydroxyphenylacetic acid) by ms and nmr techniques. its average content in honey was 378 +/- 92 mg/kg. analysis of nectar confirmed the floral origin of the compound found in honey. since this acid was not detected in any of the different monofloral honeys, it could be used as a marker of strawber ... | 1999 | 10552766 |
| water relations, gas exchange and growth of dominant and suppressed shoots of arbutus unedo l. | basal shoots produced by arbutus unedo l. after cutting at ground level vary in size and growth rate, and are classified accordingly as dominant or suppressed. the suppressed shoots eventually cease growth and die. in this study, we investigated the role of light and water in the competition among shoots of a. unedo. dominant and suppressed shoots of a. unedo showed similar leaf water potentials and tissue water relations over the year, suggesting that water status is not responsible for the lac ... | 1995 | 14965950 |
| timing of false ring formation in pinus halepensis and arbutus unedo in southern italy: outlook from an analysis of xylogenesis and tree-ring chronologies. | mediterranean tree rings are characterized by intra-annual density fluctuations (iadfs) due to partly climate-driven cambial activity. iadfs are used as structural signals to gain information on relations between environmental conditions and eco-physiological processes during xylogenesis, with intra-annual resolution. to reach an unbiased synchronization of the iadf position within tree rings and seasonal fluctuations in environmental conditions, it is necessary to know the timing of cambial act ... | 2016 | 27252721 |
| dampening effects of long-term experimental drought on growth and mortality rates of a holm oak forest. | forests respond to increasing intensities and frequencies of drought by reducing growth and with higher tree mortality rates. little is known, however, about the long-term consequences of generally drier conditions and more frequent extreme droughts. a holm oak forest was exposed to experimental rainfall manipulation for 13 years to study the effect of increasing drought on growth and mortality of the dominant species quercus ilex, phillyrea latifolia, and arbutus unedo. the drought treatment re ... | 2013 | 23712619 |
| multiple lectin detection by cell membrane affinity binding. | assuming that lectins evolved to recognise relatively complex and branched oligosaccharides or parts of them, rather than simple sugars, a procedure based on lectin affinity binding to isolated erythrocyte (or any other cell type) membranes is proposed. this methodology was validated using six pure commercial lectins, as well as lectins from total protein extracts of arbutus unedo leaves. all commercial lectins, as well as five polypeptides from a. unedo leaves bound to the glycosylated membrane ... | 2012 | 22381939 |
| antioxidant profile of strawberry tree honey and its marker homogentisic acid in several models of oxidative stress. | the antioxidant activity of several honeys was evaluated considering the different contribution of entire samples. the strawberry tree honey emerged as the richest in total phenols and the most active honey in the dpph and frap tests, and could protect cholesterol against oxidative degradation (140°c). homogentisic acid (2,5-dihydroxyphenylacetic acid, hga), the main phenolic compound from strawberry tree honey, showed interesting antioxidant and antiradical activities, and protective effect aga ... | 2011 | 25212335 |
| continuous basal sprouting from a lignotuber:arbutus unedo l. anderica arborea l., as woody mediterranean examples. | the two dominant species of the corsican mattoral,arbutus unedo l. anderica arborea l., can produce abundant sprouts from the lignotuber not only immediately after fire but also more or less continuously in the absence of major disturbance. the lignotuber appears to be more important during the early stages of development; the result is an increase in the number of sprouts during the 25 years following the establishment of the individuals. later the lignotuber seems to lose the ability to ensure ... | 1989 | 23494355 |
| determination of carbon-reduction-cycle intermediates in leaves of arbutus unedo l. suffering depressions in photosynthesis after application of abscisic acid or exposure to dry air. | gas exchange and contents of photosynthetic intermediates of leaves of arbutus unedo l. were determined with the aim of recognizing the mechanisms of inhibition that were responsible for the "midday depression" of photosynthesis following exposure to dry air, and the decline in photosynthetic capacity following application of abscisic acid (aba). rapidly killed (<0.1 s) leaf samples were taken when gas analysis showed reduced co2 assimilation. determination of the contents of 3-phosphoglyceric a ... | 1988 | 24226409 |
| effect of photosynthetic photon flux density on carboxylation efficiency. | the effect of photosynthetic photon flux density (ppfd) on photosynthetic response (a) to co(2) partial pressures between 35 pascals and co(2) compensation point (gamma) was investigated, especially below ppfd saturation. spinacia oleracea cv ;atlanta,' glycine max cv ;clark,' and arbutus unedo were studied in detail. the initial slope of the photosynthetic response to co(2) ( partial differentiala/ partial differentialc[gamma]) was constant above a ppfd of about 500 to 600 micromoles per square ... | 1987 | 16665640 |
| optimization of dna extraction for rapd and issr analysis of arbutus unedo l. leaves. | genetic analysis of plants relies on high yields of pure dna. for the strawberry tree (arbutus unedo) this represents a great challenge since leaves can accumulate large amounts of polysaccharides, polyphenols and secondary metabolites, which co-purify with dna. for this specie, standard protocols do not produce efficient yields of high-quality amplifiable dna. here, we present for the first time an improved leaf-tissue protocol, based on the standard cetyl trimethyl ammonium bromide protocol, w ... | 2011 | 21747730 |
| effects of process parameters on supercritical co2 extraction of total phenols from strawberry (arbutus unedo l.) fruits: an optimization study. | the aim of this work was to optimize total phenolic yield of arbutus unedo fruits using supercritical fluid extraction. a box-behnken statistical design was used to evaluate the effect of various values of pressure (50-300 bar), temperature (30-80°c) and concentration of ethanol as co-solvent (0-20%) by co2 flow rate of 15 g/min for 60 min. the most effective variable was co-solvent ratio (p<0.005). evaluative criteria for both dependent variables (total phenols and radical scavenging activity) ... | 2011 | 21695688 |
| comparative study of spasmolytic properties, antioxidant activity and phenolic content of arbutus unedo from montenegro and greece. | arbutus unedo leaf is used traditionally for gastrointestinal complaints. ethanol extracts from arbutus unedo collected in both montenegro (aum) and greece (aug) were found to decrease the ileal basal tonus, with aug producing a significantly higher (p < 0.05) reduction in contractile response to acetylcholine. aum and aug relaxed 80 mm k(+) induced contractions and shifted the ca(++) concentration-response curves to the right, similar to that caused by verapamil, suggesting that the spasmolytic ... | 2011 | 21438047 |
| stomatal aperture, photosythesis and water fluxes in mesophyll cells as affected by the abscission of leaves. simultaneous measurements of gas exchange, light scattering and chlorphyll fluorescence. | carbon dioxide exchange, transpiration, chlorophyll fluorescence and light scattering of leaves of lycopersicom esculentum, helianthus annuus and arbutus unedo were measured simultaneously before and after abscission of leaves. scattering of a weak green measuring beam was used to monitor water fluxes across the thylakoid membranes of the mesophyll. when leaves were cut under water, stomata initially closed partially and then occasionally exhibited distinct regulatory oscillations. as stomata cl ... | 1986 | 24240372 |
| effects of humidity during diurnal courses on the co2- and light-saturated rate of net co2 uptake in the sclerophyllous leaves of arbutus unedo. | | 1985 | 28311330 |
| effects of temperature at constant air dew point on leaf carboxylation efficiency and co2 compensation point of different leaf types. | the effect of temperature on photosynthesis at constant water-vapor pressure in the air was investigated using two sclerophyll species, arbutus unedo and quercus suber, and one mesophytic species, spinacia oleracea. photosynthesis and transpiration were measured over a range of temperatures, 20-39° c. the external concentration of co2 was varied from 340 μbar to near co2 compensation. the initial slope (carboxylation efficiency, ce) of the photosynthetic response to intercellular co2 concentrati ... | 1985 | 24241315 |
| differences in foliage affect performance of the lappet moth, streblote panda: implications for species fitness. | implications for adults' fitness through the foliage effects of five different host plants on larval survival and performance of the lappet moth, streblote panda hübner (lepidoptera: lasiocampidae), as well as their effect on species fitness were assayed. larvae were reared under controlled laboratory conditions on excised foliage. long-term developmental experiments were done using first instar larvae to adult emergence, and performance experiments were done using fifth instar larvae. survival, ... | 2010 | 21062148 |
| variations of vessel diameter and δ13c in false rings of arbutus unedo l. reflect different environmental conditions. | woody species in mediterranean ecosystems form intra-annual density fluctuations (iadfs) in tree rings in response to changes in environmental conditions, especially water availability. dendrochronology, quantitative wood anatomy and high-resolution isotopic analysis (using a laser ablation technique) were used to characterize iadfs in arbutus unedo shrubs grown on two sites with different water availability on the island of elba (italy). our findings show that iadf characterization can provide ... | 2010 | 20840507 |
| effect of plant growth regulators and genotype on the micropropagation of adult trees of arbutus unedo l. (strawberry tree). | arbutus unedo grows spontaneously around the mediterranean basin. the species is tolerant to drought and has a strong regeneration capacity following fires making it interesting for mediterranean forestation programs. considering the sparse information about the potential of this fruit tree to be propagated in vitro, a project to clone selected trees based on their fruit production was initiated a few years ago. the role of several factors on a. unedo propagation was evaluated. the results showe ... | 2010 | 20219713 |
| antioxidant properties and neuroprotective capacity of strawberry tree fruit (arbutus unedo). | berries contain significant amounts of phytochemicals, including polyphenols, which are reported to reduce cancer risk, coronary heart disease and other degenerative diseases. these effects are mainly attributed to the antioxidant capacity of polyphenols found in berries. strawberry tree (arbutus unedo) berries are used in folk medicine but seldom eaten as fresh fruits. their phenolic profile and antioxidant capacity reveal a high potential, but they are not well characterized as a "health promo ... | 2010 | 22254017 |
| floral markers of strawberry tree (arbutus unedo l.) honey. | strawberry tree honey, due to its characteristic bitter taste, is one of the most typical mediterranean honeys, with sardinia being one of the largest producers. according to specific chemical studies, homogentisic acid was identified as a possible marker of this honey. this work, based on hplc-dad-ms/ms analysis of strawberry tree (arbutus unedo l.) honeys, previously selected by sensory evaluation and melissopalynological analysis, showed that, in addition to the above-mentioned acid, there we ... | 2010 | 19919097 |
| reversed-phase liquid chromatographic profile of free amino acids in strawberry-tree (arbutus unedo l.) honey. | the typical profile of the free amino acids contained in strawberry-tree (arbutus unedo l.) honey is reported for the first time. an optimized reversed-phase liquid chromatographic (rp-lc) method with phenyl isothiocyanate precolumn derivatization was used. fourteen free amino acids were identified and quantified in 16 analytical samples. proline (65.63%) was found to be the most abundant free amino acid, followed by glutamic acid (6.49%), arginine (5.21%), alanine (5.17%), and phenylalanine (4. ... | 2009 | 19714983 |
| scavenging capacity of strawberry tree (arbutus unedo l.) leaves on free radicals. | despite strawberry tree (arbutus unedo l.) leaves had a long use in traditional medicine due to its antiseptic, diuretic, astringent and depurative properties, the potential of their antioxidant activity are still lacking. our study goals to assess the antioxidant and free radical scavenging potential of water, ethanol, methanol and diethyl ether extracts of a. unedo leaves. total phenols content was achieved spectrophotometrically using folin-ciocalteau reagent with gallic acid as standard. ant ... | 2009 | 19351553 |
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| studies on carotenoids: the carotenoids of diospyros fruits. ii. the carotenoids of arbutus fruits (arbutus unedo). | | 1935 | 16745844 |