Flora da Paraíba, Brasil: Combretaceae

Loiola, Maria Iracema Bezerra; Rocha, Emerson Antônio; Baracho, George Sidney; Agra, Maria de Fátima

doi:10.1590/s0102-33062009000200005

Cited by 24 publications

(19 citation statements)

References 20 publications

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“…El género Terminalia pertenence a Combretoideae y se distribuye en todos los continentes. La complejidad taxonómica y filogenética de la subfamilia Combretoideae es reconocida por la mayoría de los autores, especialmente la amplia variación morfológica en flores, frutas y brotes vegetativos, según (Tan et al, 2002;Loiola et al, 2009). Comparaciones con fósiles.…”

Section: Especies/ Caracteresunclassified

Nuevos registros de maderas del Mioceno de la Formación Solimões, Cuenca de Acre, Amazonia, Brasil

Kloster¹,

Gnaedinger²,

Adami-Rodrigues³

2017

Rev. bras. paleontol.

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-NEW WOOD RECORDS OF THE MIOCENE OF THE SOLIMÕES FORMATION, ACRE BASIN, AMAZONIA, BRAZIL.New fossil wood records associated to the families Lecythidaceae, Calophyllaceae, Combretaceae and Arecaceae for the Miocene of the Solimões Formation, Acre Basin, Brazil, are described. The specimens have been collected on the banks of the Juruá and Envira rivers. The main anatomical characters that allowed relating the specimens to these families are tangential diameter and distribution of vessels per mm 2 , parenchyma type, intravascular pits and types and sizes of rays. It is the first record of Carinianoxylon brasiliense Selmeier, Calophyloxylon eoionophyllum Prakash and Awasthi, Terminalioxylon erichensii Mussa and Palmoxylon Schenk for formation; in addition, a new species for the genus Lecythioxylon Milanez is described. Systematic comparisons have been made with the other fossil records of these families in other Gondwana formations. The paleoflora of the Solimões Formation analyzed here shows a great richness of taxonomic groups, reason why this work provides new and important data for the knowledge of the paleoflora of the Amazon region.Key words: Angiosperms, Miocene, Solimões Formation, Amazon.RESUMO -Novos registros de lenhos fósseis atribuídos às famílias Lecythidaceae, Calophyllaceae, Combretaceae e Arecaceae são descritos para o Mioceno da Formação Solimões, Bacia do Acre, Brasil. Os exemplares foram coletados as margens dos rios Juruá e Envira. As principais características anatômicas que permitiram relacionar os exemplares a estas famílias são: diâmetro tangencial e distribuição dos vasos por mm 2 , tipo de parênquima, pontuações intervaculares, tipos e tamanhos de raios. Se registra pela primeira vez Carinianoxylon brasiliense Selmeier, Calophyloxylon eoionophyllum Prakash & Awasthi, Terminalioxylon erichensii Mussa e Palmoxylon Schenk, para a Formação Solimões. Além disso, é proposta uma nova espécie para o gênero Lecythioxylon Milanez para a formação. As comparações sistemáticas foram realizadas com outros registros fósseis destas famílias para outras formações do Gondwana. A paleoflora da Formação Solimões analisada até o momento mostra uma grande riqueza de grupos taxonômicos, pelos quais este trabalho contribui com novos e importantes dados para o conhecimento da paleoflora da região Amazônica.

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Section: Especies/ Caracteresunclassified

Nuevos registros de maderas del Mioceno de la Formación Solimões, Cuenca de Acre, Amazonia, Brasil

Kloster¹,

Gnaedinger²,

Adami-Rodrigues³

2017

Rev. bras. paleontol.

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“…Bractéola Espécie facilmente reconhecida pelos tricomas lepidotos esbranquiçados ou amarelados recobrindo ramos, folhas, flores e frutos; hipanto superior alongado campanulado e pétalas orbiculares. Tem distribuição exclusiva na América do Sul, com registro para Bolívia, Paraguai e Brasil (Loiola et al 2009). No estado do Ceará tem ampla distribuição, com ocorrência em vegetação de caatinga arbustiva, carrasco, cerrado e no complexo litorâneo na mata de tabuleiro (Fig.…”

Section: 7unclassified

“…Entre esses, destacamos os estudos de Marquete (1984Marquete ( , 1995, Marquete & Valente (1997) e Marquete et al (2003) que deram enfoque às espécies ocorrentes na região Sudeste; Linsigen et al (2009) registraram as Combretaceae da Região Sul e no nordeste do país, Loiola & Sales (1996) estudaram os representantes de Combretum ocorrentes em Pernambuco e Loiola et al (2009) listaram as Combretaceae do estado da Paraíba. Já Marquete & Valente (2010) apresentaram a lista atualizada das espécies de Combretaceae para o território brasileiro, acrescentando informações sobre os domínios fitogeográficos e tipos vegetacionais preferenciais das espécies, além de sinônimos.…”

Section: Introductionunclassified

Flora do Ceará, Brasil: Combretaceae

et al. 2014

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ResumoEste estudo consiste no levantamento florístico de Combretaceae ocorrentes no estado do Ceará, como parte do projeto "Flora do Ceará". O estudo foi baseado na análise comparativa dos caracteres morfológicos de espécimes depositados em herbários, bibliografia, fotos de materiais-tipo, além de coletas e observações de campo. Foram registradas 17 espécies distribuídas em cinco gêneros: Buchenavia (2); Combretum (9); Conocarpus (1); Laguncularia (1) e Terminalia (4). As espécies ocorrem preferencialmente em ambientes mais secos como caatinga, carrasco e floresta estacional. Palavras-chave: distribuição, florística, Combretum, nordeste do Brasil, Terminalia. AbstractWe present the floristic survey of Combretaceae occurring in the Ceará state, as part of "Flora do Ceará" project. This study was based on the comparative analysis of morphological characters of herbarium specimens, bibliography, photo-type material, along with collections and field observations. Seventeen species in five genera were recorded: Buchenavia (2); Combretum (9); Conocarpus (1); Laguncularia (1) e Terminalia (4). The species occurs preferentially in drier habitats like the caatinga, carrasco and deciduous forest.

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“…It's a shrub-like scandent tree and it has a high ability to colonize new areas in the pantanal region (large wetland distributed between Brazil, Paraguay and Bolivia) due to its ability to grow and reproduce rapidly, even under conditions of water stress (flood and drought) and forest fires (Loiola et al 2009). Their adaptive ability is evidenced by the formation of a dominant population termed 'pombeiral' (Pott et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Endophytism and bioactivity of endophytic fungi isolated from Combretum lanceolatum Pohl ex Eichler

et al. 2016

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We report the isolation and identification of endophytic fungi from Combretum lanceolatum Pohl ex Eichler. Further, we evaluated the relationships of fungi with the host plant and tested bioactivities of isolates. The fungi were isolated from disinfected root fragments and plated onto potato dextrose agar. Root pieces were also used to quantify fungal structures associated with the roots. Identification of fungi was carried out by characterization of morphological features and sequencing of the ITS region. Endophytism was confirmed by inoculation of endophyte-free seedlings followed by microscopic examination. The extract was obtained by maceration of the mycelium in ethyl acetate for antioxidant and antimicrobial evaluations. A total of 112 strains belonging to nine different species were isolated, the major classes were Dothideomycetes and Sordariomycetes. C. lanceolatum is colonized by dark septate endophytes (DSE), evidenced by the presence of microsclerotia and melanized hyphae. There is also co-colonization with mycorrhizal fungi in the same root fragments. Seedling inoculation experiments revealed that C. perangustum-95C and M. phaseolina-46C showed association with the seedlings of C. lanceolatum and differentiated microsclerotia and dark septate hyphae, indicating that these species are DSE. In the antimicrobial test, the D. phaseolorum-92C extract had the highest zones of inhibition against S. aureus and E. coli, respectively. The results showed that 100 % of the extracts have antioxidant activity ranging from low to moderate. All endophyte species had antioxidant and antimicrobial activities that were directly proportional to the dose-responses. Future research will involve chemical characterization and structural elucidation of bioactive compounds.

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Flora da Paraíba, Brasil: Combretaceae

Cited by 24 publications

References 20 publications

Nuevos registros de maderas del Mioceno de la Formación Solimões, Cuenca de Acre, Amazonia, Brasil

Nuevos registros de maderas del Mioceno de la Formación Solimões, Cuenca de Acre, Amazonia, Brasil

Flora do Ceará, Brasil: Combretaceae

Endophytism and bioactivity of endophytic fungi isolated from Combretum lanceolatum Pohl ex Eichler

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