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Trichomes micromorphology and essential oil variation at different developmenta...
Rodrigues, Leandra; Póvoa, Orlanda; Teixeira, Generosa; Figueiredo, Ana Cristina; Moldão, Margarida; Monteiro, AnaThe indumentum of Mentha pulegium L., studied by light and scanning electron microscopy, was characterized by non-glandular and glandular trichomes, which corresponded to the common arrangement described for the Lamiaceae family. Histochemistry revealed the presence of pectins, total lipids, acidic lipids and essential oils in the glandular trichomes secretions. The essential oil yield ranged from 0.3% (w/d.w.)...
Genetic diversity in Mentha cervina based on morphological traits, essential oi...
Rodrigues, Leandra; Póvoa, Orlanda; Berg, Cássio Van den; Figueiredo, Ana Cristina; Moldão-Martins, Margarida; Monteiro, AnaMorphological, phytochemical and genetic differences were studied to evaluate the level and distribution of diversity in twelve populations of the Portuguese endangered medicinal plant Mentha cervina L. Morphological variation was correlated with ecological conditions at the site of origin. Pulegone was the major essential oils compound in all of the populations collected at full flowering (68–83%), in differen...
Low genetic diversity and significant structuring in the endangered Mentha cerv...
Rodrigues, Leandra; Berg, Cássio Van den; Póvoa, Orlanda; Monteiro, AnaEighteen populations of the endangered aromatic and medicinal plant Mentha cervina (Lamiaceae) were sampled across its natural range, in the western half of the Iberian Peninsula, and inter-simple sequence repeats (ISSRs) markers were used to assess genetic diversity and population structure. M. cervina populations exhibited a relatively low genetic diversity (percentage of polymorphic loci PPB ¼ 14.2–58.3%, Ne...
Chemical composition and antibacterial activity of essential oils from the medi...
Rodrigues, Leandra; Duarte, Aida; Figueiredo, Ana Cristina; Brito, Luísa; Teixeira, Generosa; Moldão, Margarida; Monteiro, AnaMentha cervina is a medicinal plant traditionally used in Portugal in folk medicine, in different gastric disorders and inflammations of the respiratory tract. In order to validate those traditional uses, M. cervina essential oils (EOs) were characterized by GC and GC–MS and their antimicrobial activity was tested against 23 bacterial strains (including multiresistant strains). The EOs were dominated by the mon...
Phytochemical and genetic diversity in Mentha species: assessment, valorization...
Rodrigues, Leandra Sofia de MatosDoutoramento em Engenharia Agronómica - Instituto Superior de Agronomia ; Mentha cervina (L.) Opiz and Mentha pulegium L. are medicinal and aromatic plants traditionally used in Portugal for aromatic and seasoning purposes and in folk medicine, for treatment of gastric and respiratory problems. Light and scanning electron microscopy of both species indumentum revealed non-glandular and glandular trichomes, cor...
Morphology of secretory structures and essential oil composition in Mentha cerv...
Rodrigues, Leandra; Monteiro, Patricia; Póvoa, Orlanda; Teixeira, Generosa; Moldão-Martins, Margarida; Figueiredo, Ana Cristina; Monteiro, AnaABSTRACT: Mentha cervina L. is an aromatic plant that is traditionally used in the Alentejo region of Portugal to flavour food dishes and for the medicinal properties of the essential oil produced in its glandular trichomes. The morphology and distribution of the secretory structures of 20 populations was studied by light and scanning electron microscopy and revealed a great similarity in the type and distribut...
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