Publicações - ciências biológicas
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Janaína Marques de Almeida;
Robson Carlos Alnoch;
Emanuel Maltempi de Souza;
MITCHELL, DAVID ALEXANDER;
KRIEGER, NADIA
Palavra-chave:
lipase;
metagenômica;
Biocatálise
Áreas do conhecimento:
Ciências Biológicas; Biotecnologia Industrial; Biocombustíveis;
Ciências Biológicas; Bioquímica; Enzimologia
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Renato Goldenberg;
Joane Coelho de Jesus;
André Márcio Amorim
Áreas do conhecimento:
Ciências Biológicas; Taxonomia Vegetal; Taxonomia de Fanerógamos
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Background – Recent collection efforts in semideciduous forests from Bahia, Brazil, provided material that belongs to a species of Miconia (Melastomataceae) not yet described scientifically. Here, we describe this new species and compare it to four species in the “Miconia discolor group” that share morphological similarities. We also provide illustrations, photographs, a distribution map and conservation assessment for the new species.Methods – This study was based on specimens from several herbaria and field collections, which resulted in photographs and ethanol-preserved material, as well as information about the environment where the plants were found. The conservation assessment is based on field observations and spatial analyses (i.e., extent of occurrence, area of occupancy), following IUCN guidelines and criteria.Results – Miconia bahiana has been collected ten times in four localities since 2001, ranging from 800 to 1041 m elevation. The species resembles a group of species endemic to the Brazilian Atlantic Forest (M. capixaba R.Goldenb., M. cubatanensis Hoehne and M. setosociliata Cogn.), all of them with abaxial leaf surfaces densely (seldom moderately) covered with branched trichomes, inflorescences with paraclades with a first dichasial branching, then uniparous (scorpioid) branchings, and white, glabrous stamens lacking appendages or with dorsal ones, the anthers with a moderate to large pore. It differs from the above cited species by the rounded to subcordate leaf bases, and the persistent calyx with a truncate inner membrane, lacking well-defined lobes. This new species is described, illustrated, and compared with the species mentioned above. According to IUCN guidelines and criteria, we recommend to assess M. bahiana as Endangered (EN).
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Eliane Cristina Gruszka Vendruscolo;
Leonardo Magalhães Cruz;
Daniel Vasconcelos Rissi;
Bruno Henrique Meyer;
Dany Mesa;
Emanuel Maltempi de Sousa;
Fabio de Oliveira Pedrosa
Palavra-chave:
biogas;
Machine learning;
16S rRNA gene;
Microbial communities
Áreas do conhecimento:
Ciências Biológicas; Biotecnologia Ambiental e Recursos Naturais; Tratamento Biológico de Residuos;
Ciências Biológicas; Genética; Genética Molecular e de Microorganismos;
Ciências Biológicas; Microbiologia; Microbiologia Aplicada; Microbiologia Industrial e de Fermentação
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CANDIDO, CAMILA;
Ana Teresa Lombardi
Palavra-chave:
biorremediação;
culturas microalgas ecologia fisiologia nutrientes
Áreas do conhecimento:
Ciências Biológicas; Microbiologia; Biologia e Fisiologia dos Microorganismos; Virologia
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Vinasse is a waste from the alcohol industry that can support microalgal growth because of its mineral and organic contents. Growing microalgae on waste can be a means of its remediation and decrease culture costs. The physiological knowledge of microalgae on waste can generate subsidies to increase biomass productivity. However, few studies have explored the photosynthetic metabolism of microalgae on complex matrices such as vinasse. In the present research, we investigated some physiological aspects related to photosynthesis and growth of several microalgae in centrifuged and diluted vinasse. The species investigated were Chlamydomonas sp., Chlorella sorokiniana, Chlorella vulgaris, Desmodesmus spinosus, Haematococcus pluvialis, Monoraphidium sp., Scenedesmus quadricauda and Tetraselmis gracilis. Daily cell density, in vivo chlorophyll a and final cellular biovolumes (96 h) were monitored to infer about population growth. Maximum and operational photosynthetic yields (ϕM and ϕ′M), photochemical (qP) and non-photochemical (NPQ) quenchings, light saturation curves and related parameters (α, rETRm and EK), as well as theoretical carbon fixation were evaluated using pulse amplitude modulated fluorometry (PAM). The results showed that chlorophyll a, photochemical (qP) and non-photochemical (NPQ) quenchings were not affected in vinasse, but photosynthetic yields, light curves parameters and autotrophic carbon fixation decreased. Connecting these results to the increase in productivities in vinasse lead us to the rationale that mixotrophic metabolism was supporting microalgae growth on the waste. This study offers important insights into the understanding of microalgal photosynthetic physiology on complex organic wastes, generating subsidies for optimization of biotechnological use of vinasse related to microalgae production.
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Cynthia Ramos;
Maristela Ocampos;
BICALHO, M. G.;
Renato Nisihara
Palavra-chave:
Diagnosis; FMR1 gene; Fragile X syndrome;
Áreas do conhecimento:
Ciências Biológicas; Bioquímica dos Microorganismos; Enzimologia
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MACHADO, LILIAN DE OLIVEIRA;
Leila do N. Vieira;
STEFENON, VALDIR MARCOS;
FAORO, HELISSON;
PEDROSA, FABIO DE OLIVEIRA;
Miguel Pedro Guerra;
Rubens Onofre Nodari
Palavra-chave:
Molecular markers;
Chloroplast
Áreas do conhecimento:
Ciências Biológicas; Biologia Molecular
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Abstract Plastomes are very informative structures for comparative phylogenetic and evolutionary...
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Mirna Clemente;
Larissa Junqueira Gatto;
Christian Burmeister Schonhofen;
OBDÚLIO GOMES MIGUEL;
Marilis Dallarmi Miguel;
Darlan França Ciesielski Junior;
Tabea Epp Kuster Alves;
Tiago Volpi Braz;
Louryana Padilha Campos;
Luciana Gibbert;
Sandro José R Bonato;
Luis Cláudio Fernandes
Palavra-chave:
Paralympic sport;
Spinal Cord Injury;
training programme;
senior athletes
Áreas do conhecimento:
Ciências da Saúde; Educação Física; Fisiologia do Exercício;
Ciências Biológicas; Fisiologia; Fisiologia de Órgãos e Sistemas; Fisiologia Endócrina
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(en)
<p><strong>Purpose: </strong>Paralympic Games were started originally for therapeutic reasons; nowadays they demonstrate the characteristics of high-performance sports. The surrogate measures (e.g., sleeping habits) and the internal training load (ITL) measures are strongly associated and are used to monitor performance in sport. This study aimed to understand whether the relationship between internal training load and surrogate measures, observed over a 16-week period, would be beneficial or otherwise in the case of a senior female Paralympic athlete with spinal cord injury, who was training to compete in table tennis at the Parapan American Games in Lima. </p><p><strong>Method: </strong>This case study evaluated the surrogate measures through the Heart Rate Variability measure, the Wisconsin Upper Respiratory Symptom Survey and the Pittsburgh Sleep Quality Index and assessed their relationship with the internal training load.</p><p><strong>Results: </strong>The data demonstrated that during the monitoring period the athlete presented minimal fluctuations in the Heart Rate Variability measure, the Wisconsin Upper Respiratory Symptom Survey and the Pittsburgh Sleep Index. Significance was considered at p< 0.05.</p><p><strong>Conclusion and Implication: </strong>Contrary to the athlete`s age and physical condition<strong>, </strong>the data demonstrated some gains towards her success in the sporting competition. A new approach in monitoring internal training load associated with surrogate measures is necessary. It could prove to be a good strategy for implementation in competition training routines for Paralympic athletes to reach their individual goals.</p>
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PÉREZ, SANDRA;
FOGAÇA, JOÃO MANUEL;
WOLFF, MARTA;
Cláudio J B Carvalho
Palavra-chave:
Ecuador;
Colombia;
phylogenetic relationships;
morphological characters;
Taxonomy;
Systematics
Áreas do conhecimento:
Ciências Biológicas; Bioquímica dos Microorganismos; Enzimologia;
Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes
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Reinwardtia Brauer & Bergenstamm is a monotypic genus, with only R. tachinina described from Venezuela. Here, we revised the genus to include Reinwardtia bicolor sp. nov. from Colombia and Ecuador....
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Bernardo Olsson;
CALIXTO, R.D.;
DA SILVA MACHADO, N.C.;
MEGER, M.N.;
PAULA-SILVA, F.W.G.;
NELSON LUIS BARBOSA REBELLATO;
DA COSTA, D.J.;
KÜCHLER, E.C.;
Rafaela Scariot
Palavra-chave:
gene expression;
Third molars;
impacted tooth;
transcription factor;
MSX1
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Bernardo Olsson;
CALIXTO, R.D.;
DA SILVA MACHADO, N.C.;
MEGER, M.N.;
PAULA-SILVA, F.W.G.;
Nelson Rebellato;
DA COSTA, D.J.;
KÜCHLER, E.C.;
Rafaela Scariot
Palavra-chave:
gene expression;
Third molars;
impacted tooth;
transcription factor;
MSX1
Áreas do conhecimento:
Ciências da Saúde; Cirurgia e Traumatologia Buco-Maxilo-Faciais;
Ciências Biológicas; Genética; Genética Humana e Médica; Imunogenética
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