Search results for "LAMIACEAE"
showing 10 items of 107 documents
Thymus vulgaris Essential Oil and Hydro-Alcoholic Solutions to Counteract Wooden Artwork Microbial Colonization
2021
Aromatic plants represent a source of natural products with medicinal properties, and are also utilized in the food and pharmaceutical industries. Recently, the need for eco-compatible and non-toxic products, safe for both the environment and human health, have been proposed for the sustainable conservation of historic–artistic artifacts. In this study, in order to counteract microbial colonization (Aspergillus sp., Streptomyces sp., Micrococcus sp.) on wooden artwork surfaces, Thymus vulgaris L. (Lamiaceae) essential oil (EO) and hydro-alcoholic (HA) solutions were applied in a polyphasic approach. The antimicrobial activities of EO and HA solutions were preliminarily assessed by agar disc…
Phytochemical composition, anti-inflammatory and antitumour activities of four Teucrium essential oils from Greece
2009
Abstract The essential oils of four Teucrium species were studied and 150 components, in all, were identified. All oils were rich in sesquiterpenes (50.1–55.8%). Spathulenol and δ-cadinene were the main compounds of Teucrium brevifolium oil; caryophyllene and 4-vinyl guaiacol predominated in Teucrium flavum . Carvacrol and caryophyllene oxide predominated in Teucrium montbretii ssp. heliotropiifolium , while carvacrol and caryophyllene were the most abundant components in Teucrium polium ssp. capitatum . The oil which most effectively inhibited LPS-induced NO production in macrophage cell line RAW 264.7 was that from T. brevifolium (IC 50 = 7.1 μg/ml), followed by T. montbretii ssp. heliot…
Un nuevo híbrido para el género <i>Teucrium</i> L. (sect. <i>Polium, Lamiaceae</i>) en la Comunidad Valenciana
2012
A new hybrid is described for the genus Teucrium L. [sect. Polium (Mill). Schreb., Lamiaceae], Teucrium × guarae-requenae [ T. gnaphalodes L’Her. × T. homotrichum (Font Quer) Rivas Mart.] from Fontanars dels Alforins (Valencia Province, Spain). Morphological description and illustrations of the new hybrid are provided.
Sobre Teucrium × bicoloreum (Lamiaceae) y sus afinidades taxonómicas con algunos congéneres presentes en el territorio valenciano
2009
Se reivindica el nombre Teucrium × bicoloreum Pau ex C. Vicioso para el nototaxon producto del cruce natural entre T. expassum Pau y T. ronnigeri Sennen. Se comentan las relaciones morfológicas con ambos parentales y las afinidades taxonónicas con aquellos congéneres más estrechamente emparentado. Esta nueva interpretación permite separar a las plantas valencianas respecto del complejo de formas de distribución bética, tradicionalmente adscritas a T. bicoloreum auct. pl. non Pau ex C. Vicioso. Se aportan nuevos datos sobre su presencia en la Comunidad Valenciana y algunos aspectos relacionados con su ecología. Además, se describen dos nuevas notoformas: T. × bicoloreum nm. expassoides y nm.…
Comparative efficacy of Zataria multiflora Boiss., Origanum compactum and Eugenia caryophyllus essential oils against E. coli O157:H7, feline caliciv…
2013
Abstract Ready-to-eat salads using baby-leaf and multi-leaf mixes are one of the most promising developments in the fresh-cut food industry. There is great interest in developing novel decontamination treatments, which are both safe for consumers and more efficient against foodborne pathogens. In this study, emulsions of essential oils (EOs) from Origanum compactum (oregano), Eugenia caryophyllus (clove), and Zataria multiflora Boiss (zataria) were applied by spray (0.8 ml) after the sanitizing washing step. The aim was to investigate their ability to control the growth of potentially cross-contaminating pathogens and endogenous microbiota in commercial baby leaves, processed in a fresh-cut…
Chemical constituents from Phlomis bovei Noë and their chemotaxonomic significance
2020
Abstract A phytochemical investigation of the leaves and roots of Phlomis bovei Noe (Lamiaceae) led to the isolation of sixteen compounds, including iridoids (1, 2, 3), megastigmanes (4, 5), phenylpropanoids (6, 7, 8, 9, 10), lignans (11, 12, 13, 14), a nortriterpene (15), and a phenyl glucoside (16). Compounds (1, 2, 4, 5, 6, 10) were obtained from the leaves and compounds (1, 2, 3, 7, 8, 9, 11, 12, 13, 14, 15, 16) were isolated from the roots. Compounds 1 and 2 were found both in the leaves and in roots. The compounds were identified by analysis of 1D- (1H, 13C), 2D-NMR (1H–1H COSY, TOCSY, ROESY, HSQC, HMBC) spectroscopic data, mass spectrometry (ESI- and HR-ESI-MS), and by comparison wit…
Chromosome numbers of severalLamiaceae from Spain
1998
Chromosome numbers of twenty taxa, almost all of them Iberian endemics, of the generaTeucrium, Sideritis, Thymus andSalvia are reported. New chromosome numbers are given for the following taxa:Teucrium homotrichum (2n=78),T. hifacense (2n=26),T. rivasii (2n=26),T. rivas-martinezii (2n=26),Sideritis edetana (2n=30),S. murgetana subsp.littoralis (2n=28), and the hybridS. xviciosoi (2n=27). The first count on Iberian material forSalvia pratensis (2n=18) is reported. Chromosome numbers have been confirmed for the rest of the taxa studied on material from SE Spain. Karyotype analyses and taxonomic remarks are included.
Typification of the Presl’s name Calamintha canescens (Lamiaceae)
2021
Calamintha canescens is a taxon described in the “Flora Sicula” by K. B. Presl (1826), following the visit made to Sicily a few years earlier (March-July 1817). In the protologue Presl does not report any data on the distribution in Sicily of this taxon that will be almost completely forgotten in later floristic works. Only Nyman (1881) and later Šilić (1979) consider it as a variety respectively of Calamintha nepeta (L.) Savi and C. glandulosa (Req.) Benth. Following the review of a group of critical European taxa belonging to the genus Clinopodium L., lately Melnikov (2016) recovers the ancient taxon Calamintha canescens C. Presl and transfers it to the genus Clinopodium L. Also, the auth…
Scuteparvin, a new neoclerodane diterpenoid from Scutellaria parvula
2004
Abstract The diterpenoid fraction occurring in the acetone extract of the aerial parts of Scutellaria parvula has been investigated. Only one neoclerodane diterpenoid, scuteparvin, was isolated and its structure elucidated as 4α,18-epoxy-6α- trans -cinnamoyloxy- neo clerod-13-en-15,16-olide, a new natural product. Scuteparvin is quite similar to the already known ajugarin V from Ajuga remota , the only difference being the occurrence of a trans -cinnamoyl ester system instead of an acetate on the 6α-OH group. This finding confirms that the genera Scutellaria and Ajuga are closely related taxonomically.
Clinopodium raimondoi (Lamiaceae), a new species from Sicily
2015
On the basis of the taxonomic study of the collections made by F. M. Raimondo, kept in PAL, a new species of Clinopodium is described. The new taxon, named Clinopodium raimondoi, occurs in N-W coast of Sicily on limestone substrata, in steppe communities dominated by Hyparrhenia hirta. The main distinctive characteristics of C. raimondoi, with respect to other taxa known from Europe and other Mediterranean countries, are the large size, the opposite and decussate branches, and the clearly woody at base stems of mature plants as well. Relationships of the new taxon with the Mediterranean ones in the C. nepeta group are also discussed.