Lísia Mônica De Souza Gestinari

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• PhD in Botany
• Professor (Associate) at Federal University of Rio de Janeiro

Objetivo: A dessecação de estruturas germinativas tem se mostrado uma ferramenta promissora para a conservação de espécies vegetais, incluindo formas de vida aquáticas. Ao reduzir o metabolismo celular, a dessecação pode alterar o tempo de germinação e a viabilidade de esporos. Este trabalho objetivou avaliar a tolerância de esporos de Isoëtes cang...

Molecular phylogenetic studies have revealed the polyphyletic nature of Cladophora as traditionally circumscribed, which is separated into four main clades: Cladophoraceae, Siphonocladus, Pithophoraceae and Pseudocladophoraceae. Several taxonomic proposals have recently been made to resolve its polyphyletic nature. The present work focuses on the c...

Isoëtes is a cosmopolitan genus of aquatic lycophytes, containing more than 200 species. In Brazil, the genus comprises 29 species, with three occurring in Pará state, Amazon. Isoëtes cangae and I. serracarajensis are endemic to the ferruginous outcrops of Serra dos Carajás, and I. amazonica occurs on the inundated shores of the Tapajós River. Desp...

O objetivo do presente estudo é descrever a composição específica, freqüência, distribuição espacial, biomassa e diversidade das comunidades de algas calcárias articuladas no litoral do Espírito Santo. Foram identificadas 82 espécies de algas marinhas bentònicas, desde a região mesolitorânea (inferior) até a orla infralitorânea, em três costões roc...

Isoetes cangae ¨ and Isoetes serracarajensis ¨ (Isoetaceae) are species endemic to Carajas (Para State, Brazil) that grow on iron-rich substrates of the Amazon basin under a seasonal rainfall regime. In addition to a few distinctive morphological traits, the species differ in terms of habitat and geographical distribution. The influence of the seas...

South America is the center of diversity of the genus Isoetes and several new species have been described in the last decade, especially in Brazil. Isoetes cangae J.B.S. Pereira, Salino & Stützel was first recognized in 2016 as an endemic species of a single lake in Serra dos Carajás, Brazil, in the southeastern Amazon region. The climate of Amazon...

Este capitulo é uma tentativa de expressar os sentimentos de pioneirismo e de empreendedorismo que são marca registrada daqueles docentes, que acreditaram na proposta de interiorização da UFRJ e passaram a ajudar a realização do sonho de construir uma nova UFRJ em Macaé. Segundo as professoras-pioneiras Lisia Gestinari e Tatiana Konno, que contribu...

In this work, we aimed to evaluate the effect of the water-soluble fraction (WSF) of petroleum on the photosynthesis and chemical defenses of two sympatric members of the brown algal family Dictyotaceae, Dictyota caribaea and Stypopodium zonale. The algae were cultivated in incubator chambers for 8 days in flasks containing the WSF or seawater as a...

O objetivo geral das Cartas SAO é fornecer, de maneira rápida e objetiva, as informações preliminares para o planejamento de contingência e das ações de resposta a incidentes de poluição por óleo. Isto é feito com base na identificação da sensibilidade dos ecossistemas costeiros e marinhos, de seus recursos biológicos e das atividades socioeconômic...

O Programa de Pós-Graduação em Ciências Ambientais e Conservação (PPG-CiAC), criado em 2011, é o primeiro PPG da Universidade Federal do Rio de Janeiro (UFRJ) fora da capital do estado. Ao longo dos últimos cinco anos, mais de 50 dissertações de mestrado foram defendidas no programa, geralmente tendo como objeto de estudo os ecossistemas e a socied...

In order to evaluate the chemical diversity of Laurencia dendroidea J. Agardh, a wide distributed seaweed in Brazilian coast, a phytochemical study was carried out with algae collected from six different locations along Southeast Brazilian coast. Purified compounds were identified by MS and NMR techniques. The chemical profiles of lipophilic extrac...

Abstract An updated synthesis of cyanobacteria and algae information is presented for Brazil aiming to refine the data gathered to date and evaluate the progress of the biodiversity knowledge about these organisms in the country since the publication of the Catálogo de Plantas e Fungos do Brasil. The results of 2015 showed an increase of 1,250 spec...

Background: Red algae of the genus Laurencia J. V. Lamouroux are a rich source of secondary metabolites with important pharmacological activities such as anti-tumoral, anti-inflammatory, anti-fungal, anti-viral, anti-leishmanial, anti-helminthic, anti-malarial, anti-trypanosomal, anti-microbial as well as anti-bacterial against Mycobacterium tuber...

Apresenta-se uma síntese atualizada de informações sobre algas no Brasil objetivando refinar os dados reunidos até o presente, bem como avaliar os avanços sobre o conhecimento da diversidade de algas no país desde a publicação do Catálogo de Plantas e Fungos do Brasil. Os resultados de 2015 mostraram um acréscimo de 1.250 espécies (35.7%) a um tota...

Chemical profiles of extracts of four species from Laurencia complex (Ceramiales, Rhodophyta) from different populations collected along Southeast Brazilian coast were assessed by High Performance Liquid Chromatography coupled with a Diode Array Detector in order to observe geographic chemical variability. Aiming to evaluate the impact of chemical...

This study investigates the deep-water flora of the continental shelf in Sergipe State, Brazil located between 10º36’08’’ – 11º21’07’’S and 36º28’10’’ – 37º13’47’’W. The samples were collected by dragging at 18 sampling sites, between 10 to 30 m depth, from May 1999 to March 2000. A total of 91 taxa of marine benthic macroalgae were identified (56...

Two new chamigrane sesquiterpenes 1–2 and three known compounds 3–5 were isolated from a lipophilic extract of the red alga Laurencia dendroidea collected from the Southeastern Brazilian coast. Dendroidone (1) and dendroidiol (2) were isolated from samples collected at Biscaia Inlet, Angra dos Reis, Rio de Janeiro and at Manguinhos Beach, Serra, Es...

Many types of macroalgae contain a wide range of bioactive compounds that have antioxidant potential. However, in contrast to terrestrial plants, only a few studies have reported the antioxidant activity of seaweeds. Therefore, extracts from 26 marine macroalgae species from the south and southeast coasts of Brazil were evaluated for their antioxid...

Many types of macroalgae contain a wide range of bioactive compounds that have antioxidant potential. However, in contrast to terrestrial plants, only a few studies have reported the antioxidant activity of seaweeds. Therefore, extracts from 26 marine macroalgae species from the south and southeast coasts of Brazil were evaluated for their antioxid...

É apresentado o levantamento de Siphonocladaceae da Bahia, Brasil, como contribuição ao conhecimento dasclorofíceas do litoral do Estado. São reconhecidos quatro gêneros e cinco espécies: Chamaedoris peniculum, Dictyosphaeria cavernosa, D. versluysii, Ernodesmis verticillata e Siphonocladus tropicus. É apresentada chave de identificação para as esp...

Flora of Bahia: Boodleaceae) – A survey of Boodleaceae from the coast of Bahia State, Brazil, is presented as a contribution to the knowledge of the chlorophytes. Three genera and four species were recognized: Boodlea composita, Cladophoropsis membranacea, Phyllodictyon anastomosans and P. pulcherrimum. An identification key, descriptions, illustra...

In this taxonomic treatment of Cladophora, thirteen species are described and illustrated from the littoral zone of Bahia, Brazil: Cladophora aokii, C. brasiliana, C. catenata, C. coelothrix, C. conferta, C. crispula, C. corallicola, C. dalmatica, C. laetevirens, C. montagneana, C. ordinata, C. prolifera and C. vagabunda. Two species have an extend...

Organic extracts of 36 species of marine algae (sixteen species of Rhodophyta, eight species of Ochrophyta and twelve species of Chlorophyta) from seven locations on the Brazilian coast were evaluated for their anti-HSV-1 and anti-HSV-2 activity resistant to Acyclovir (ACV). Activity tests in crude extracts, followed by the identification of the ma...

(Boodlea composita (Harv.) F.Brand (Chlorophyta) in the northeastern coast of Brazil). This study reports the first occurrence of Boodlea composita (Harv.) F.Brand (Chlorophyta) to the northeastern coast of Brazil and the second record for the Brazilian coast. The material was collected along the coast of Bahia (08º20’07”-18º20’07’’S and 30º20’37”-...

This study reports the first occurrence of Boodlea composita (Harv.) F.Brand (Chlorophyta) to the northeastern coast of Brazil and the second record for the Brazilian coast. The material was collected along the coast of Bahia (08°20′07″-18°20′07″S and 30°20′37″-46°36′59″W). The distribution of B. composita was expanded along the coast of Brazil, si...

In this paper, we evaluated the antiviral activity against HMPV replication of crude extract of the marine algae Stypopodium zonale and of two meroditerpenoids obtained from it, atomaric acid and epitaondiol, and a methyl ester derivative of atomaric acid. Their selectivity indexes were 20.78, >56.81, 49.26 and 12.82, respectively. Compared to riba...

(Microdictyon (Chlorophyta, Anadyomenaceae) from the State of Bahia, Brazil) – A morpho-taxonomic study of the genus Microdictyon from the littoral of Bahia, Brazil, is presented. The material studied was obtained by dredging in the infralittoral of the Municipality of Canavieiras, as well as from analysis of material collected along the Bahia coas...

We made a taxonomic study of representatives of Anadyomene occurring off the coast of Bahia State, Brazil. Six species were identified: A. lacerata, A. linkiana, A. pavonina, A. rhizoidifera, A. saldanhae and A. stellata. This is the first report of A. rhizoidifera since the original description of the species. Non-birefringent proteinaceous crysta...

We made a taxonomic study of representatives of Anadyo-mene occurring off the coast of Bahia State, Brazil. Six spe-cies were identified: A. lacerata, A. linkiana, A. pavonina, A. rhizoidifera, A. saldanhae and A. stellata. This is the first report of A. rhizoidifera since the original description of the species. Non-birefringent proteinaceous crys...

Species in the green algal genus Cladophora are morphologically highly variable. Since no specific study concerning Cladophora has been previously conducted in Brazil, the aim of this study was to identify Cladophora occurring along its coastline. Data were collected from several coastal states in the northeastern to southern regions of Brazil from...

The present paper included morphological and geographical distribution aspects of the Valoniaceae species occurring in the littoral of Bahia, Brazil. Specimens from vouchers of herbaria and material collected at 29 sites between 1994 and 2010 were analyzed. Four species were identified: Valonia aegagropila, V. macrophysa, V. ventricosa and Ernodesm...

Investigation of the bioactive crude extracts from two populations of the red alga Laurencia dendroidea from the southeastern Brazilian coast led to the identification of five sesquiterpenes: (+)-obtusane (1), a triquinane derivative (2), (-)-elatol (3), obtusol (4), and cartilagineol (5). An antileishmanial bioassay against Leishmania amazonensis...

The present paper included morphological and geographical distribution aspects of the Valoniaceae species occurring in the littoral of Bahia, Brazil. Specimens from vouchers of herbaria and material collected at 29 sites between 1994 and 2010 were analyzed. Four species were identified: Valonia aegagropila, V. macrophysa, V. ventricosa and Ernodesm...

RESUMO: As algas vermelhas do gênero Laurencia são conhecidas como uma riquíssima fonte de metabólitos secundários. As principais classes químicas já isoladas são terpenos -sesquiterpenos, diterpenos, triterpenos -e acetogeninas. Estudos apontam que estas substâncias apresentam importantes atividades biológicas, principalmente citotóxica e antibact...

The red alga of the genus Laurencia is known as an endless source of metabolites. The main substances produced are sesquiterpenes, diterpenes, triterpenes and acetogenins. Many studies reveal that these metabolites are active, especially cytotoxic and antibacterial. There are few other studies that describe the antiparasital, antifungal and antivir...

We evaluated the antiviral activity of the marine alga, Ulva fasciata, collected from Rasa beach and Forno beach, Búzios, Rio de Janeiro, Brazil on the replication of human metapneumovirus (HMPV). The algae extracts were prepared using three different methodologies to compare the activity of different groups of chemical composites obtained through...

The complete SSU rDNA was sequenced for 10 individuals of Cladophora vagabunda collected along the coast of Brazil. For C. rupestris (L.) Kütz. a partial SSU rDNA sequence (1634 bp) was obtained. Phylogenetic trees indicate that Cladophora is paraphyletic, but the section Glomeratae sensu lato including C. vagabunda from Brazil, Japan and France, C...

This paper presents a taxonomic study of the genera Chaetomorpha and Rhizoclonium occurring in the littoral of Bahia. The species were defined based on habit, presence or absence of lateral rhizoids, basal cell type, shape and cells dimensions. The presence of crystalline inclusions in cells was also verified. It were identified nine species, seven...

This paper presents a taxonomic study of the genera Chaetomorpha and Rhizoclonium occurring in the littoral of Bahia. The species were defined based on habit, presence or absence of lateral rhizoids, basal cell type, shape and cells dimensions. The presence of crystalline inclusions in cells was also verified. It were identified nine species, seven...

The complete SSU rDNA was sequenced for 10 individuals of Cladophora vagabunda collected along the coast of Brazil. For C. rupestris (L.) Kütz. a partial SSU rDNA sequence (1634 bp) was obtained. Phylogenetic trees indicate that Cladophora is paraphyletic, but the section Glomeratae sensu lato including C. vagabunda from Brazil, Japan and France, C...

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The implementation of the REVIZEE Program significantly allowed advancing in the knowledge of the seaweeds from the Continental Shelf of Brazil. For the present study, samples collected by a rectangular dredge in five stations of Espírito Santo and Rio de Janeiro States, at depths of 36 to 124m (20,352ºS-22,883ºS; 037,620ºW-041,154ºW) were analyzed...

Na Reserva foram encontradas 121 espécies, sendo 27 de Chlorophyceae, 21 de Phaeophyceae e 73 de Rhodophyceae. Dentre estas espécies, 38 são novas referências para a ilha, sendo que Cladophora catenata (L.) Kütz. é pela primeira vez citada para o litoral do Rio de Janeiro. Não foram encontradas espécies endêmicas e nem flora específica de região in...