Phylogenetic patterns in the fleshy-fruited Myrtaceae ? preliminary molecular evidence

Lucas, Eve; Belsham, Stephen R.; Lughadha, Eimear Nic; Orlovich, David A.; Sakuragui, Cássia Mônica; Chase, Mark W.; Wilson, Peter G.

doi:10.1007/s00606-004-0164-9

Cited by 75 publications

(79 citation statements)

References 20 publications

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“…This family consists of approximately 3,800 species and 130 genera distributed worldwide (Lucas et al, 2005). In Brazil, this family is represented by about 1,000 species and 26 genera (Sobral et al, 2010), including many which are used owing their medicinal properties and importance as food sources (Agra et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Antimicrobial and antioxidant activity of essential oil and different plant extracts of Psidium cattleianum Sabine

et al. 2016

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The goals of the study were to determine: the antimicrobial and antioxidant activities of essential oil and plant extracts aqueous and ethanolic of Psidium cattleianum Sabine; the chemical composition of the essential oil of P. cattleianum; and the phytochemical screening of aqueous and ethanolic extracts of the same plant. Regarding the antimicrobial activity, the ethanolic extract exhibited moderate antimicrobial activity with respect to bacteria K. pneumoniae and S. epidermidis, whereas, regarding other microorganisms, it showed activity considered weak. The aqueous extract and the essential oil showed activity considered weak, although they inhibited the growth of microorganisms. About the antioxidant potential, the ethanolic and aqueous extracts exhibited a scavenging index exceeding 90%, while the essential oil didn´t show significant antioxidant activity. Regarding the phytochemical composition, the largest class of volatile compounds identified in the essential oil of P. cattleianum included the following terpenic hydrocarbons: α-copaene (22%); eucalyptol (15%), δ-cadinene (9.63%) and α-selinene (6.5%). The phytochemical screening of extracts showed the presence of tannins, flavonoids, and triterpenoids for aqueous and ethanolic extracts. The extracts and essential oils inhibit the growth of microrganisms and plant extracts showed significant antioxidant activity. Also, the phytochemical characterization of the essential oil showed the presence of compounds interest commercial, as well as extracts showed the presence of important classes and compounds with biological activities.Keywords: Psidium cattleianum, antimicrobial action, microdilution, GC-MS, antioxidant activity. Atividade antimicrobiana e antioxidante do óleo essencial e diferentes extratos vegetais de Psidium cattleianum Sabine ResumoOs objetivos do trabalho foram determinar: as atividades antimicrobiana e antioxidante do óleo essencial e dos extratos vegetais aquoso e etanólico de Psidium cattleianum Sabine; a composição química do óleo essencial P. cattleianum e a triagem fitoquímica dos extratos vegetais aquoso e etanólico da mesma planta. Quanto à atividade antimicrobiana, o extrato etanólico apresentou atividade antimicrobiana moderada frente as bactérias K. pneumonieae e S. epidermidis, enquanto frente aos demais micro-organismos apresentou atividade considerada fraca. O extrato aquoso e o óleo essencial apresentaram atividade considerada fraca, embora tenham inibido o crescimento dos micro-organismos. Em relação ao potencial antioxidante, os extratos etanólico e aquoso apresentaram índice de sequestro superior a 90%, enquanto o óleo essencial não apresentou atividade antioxidante significativa. Para a composição fitoquímica, a maior classe de compostos voláteis identificados no óleo essencial de P. cattleianum foram os hidrocarbonetos terpênicos, sendo eles: α-copaeno (22%), eucaliptol (15%), δ-cadineno (9,63%) e α-selineno (6,5%). Na triagem fitoquímica dos extratos verificou-se a presença de taninos, flavonóides e triterpenói...

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Section: Introductionmentioning

confidence: 99%

Antimicrobial and antioxidant activity of essential oil and different plant extracts of Psidium cattleianum Sabine

et al. 2016

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“…No Brasil, todas as Myrtaceae estão circunscritas na tribo Myrteae, tradicionalmente divida em Myrciinae, Eugeniinae e Myrtinae (McVaugh 1968;Barroso et al 1991;, subtribos que não se sustentam como monofi léticas (Wilson et al 2001;Wilson et al 2005;Lucas et al 2005). Estudos recentes identifi caram sete grupos informais na tribo e, apesar de serem separados tanto por dados moleculares quanto por uma combinação de caracteres morfológicos, são pouco sustentados e necessitam de uma amostragem mais ampla para que haja uma reclassifi cação em níveis inferiores dentro da mesma (Lucas et al 2007).…”

Section: Introductionunclassified

Aplicação de caracteres morfoanatômicos foliares na taxonomia de Campomanesia Ruiz & Pavón (Myrtaceae)

et al. 2011

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ABSTRACT(Application of morpho-anatomical leaf characters in Campomanesia Ruiz & Pavón (Myrtaceae) taxonomy). To evaluate the utility of morpho-anatomical leaf characters in the identifi cation of botanic material of Campomanesia Ruiz & Pavón, especially when sterile, leaf venation pattern and shape of the vascular arch in the petiole of 15 taxa in Bahia state were analysed. Th e camptodromous-brochydodromous secondary venation pattern was uniform among the taxa, as well as the ultimate marginal venation in arches and orthogonal reticulate tertiary venation. Diff erences were observed in the presence of intersecondary veins and areolation in the leaf blade, and shape of the vascular arch and nature of the vascular bundle sheaths in the petiole, characters that could be used for taxonomic purposes.

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“…Numerous studies have found that the distinction of infrafamilial groups is not necessarily clear (Candolle 1828;Schauer 1841;Berg 1855Berg -18561857-1859Niedenzu 1893;Kausel 1966;McVaugh 1968;Schmid 1980;Johnson & Briggs 1984;Wilson et al 2001;Lucas et al 2005;Biffi n et al 2007;2010;Murillo-A. et al 2013).…”

Section: Introductionmentioning

confidence: 99%

The flower anatomy of five species of Myrteae and its contribution to the taxonomy of Myrtaceae

et al. 2017

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Considerable eff ort has been spent towards understanding the phylogeny of Myrteae, and based on the phylogenetic data presently available the traditional subdivision of Myrteae into three subtribes is not supported. Th e present paper aims to assess the usefulness of fl oral characters in distinguishing fi ve species that represent fi ve of the six South American clades of Myrteae (Myrtaceae). Floral buds and fl owers of Campomanesia adamantium, Eugenia pitanga, Myrceugenia alpigena, Myrcia multifl ora and Myrciaria cuspidata were collected from individual plants growing in the Cerrado (Brazilian/Central South American savanna). Among these species, the perianth of E. pitanga is the most distinct due to its vasculurization and pilosity. Th e hypanthium is thickest in C. adamantium and M. alpigena, while M. delicatula possesses tangentially elongated cells. Anthers do not exhibit much variation among the studied species, while M. alpigena is the only species with trichomes and secretory cavities distributed throughout the mesophyll of the outer wall of the ovary. Th e ovaries of all of the studied species exhibit vascularization in the form of a single ring of larger-sized bundles. Comparative analysis of these fl oral structures demonstrates that they are useful in separating these species, and thus the subtribes, of Myrteae.

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Phylogenetic patterns in the fleshy-fruited Myrtaceae ? preliminary molecular evidence

Cited by 75 publications

References 20 publications

Antimicrobial and antioxidant activity of essential oil and different plant extracts of Psidium cattleianum Sabine

Antimicrobial and antioxidant activity of essential oil and different plant extracts of Psidium cattleianum Sabine

Aplicação de caracteres morfoanatômicos foliares na taxonomia de Campomanesia Ruiz & Pavón (Myrtaceae)

The flower anatomy of five species of Myrteae and its contribution to the taxonomy of Myrtaceae

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