Publicações - ciências biológicas
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Bruna Costa Ferreira Cruz;
Ludmilla Ronqui;
Maria Claudia Colla Ruvolo-Takasusuki;
Juliana Mosconi Magro;
M RONNAU
SCIENTIA AGRARIA PARANAENSIS,
v. 18,
n. 2,
p. 154-159,
2019
Palavra-chave:
Irapuá;
esterase;
fases de desenvolvimento;
abelha;
eletroforese
resumo ...
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ALEXANDRE, SAMARA;
SILVA, MARIA;
VASCONCELOS, ANA;
CAVALCANTE, DALITA;
JOB, ALDO;
Ferreira, Luciana G.;
Miguel Noseda;
DUARTE, MARIA
Palavra-chave:
polissacarídeos;
Colletotrichum gloeosporioides;
estrutura química;
Ressonância Magnética Nuclear;
Fitopatógeno;
Biomassa fúngica
Áreas do conhecimento:
Ciências Biológicas; Química de Macromoléculas; Glicídeos;
Ciências Biológicas; Bioquímica; Biotecnologia
resumo ...
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Thalita Regina Tuleski;
Valter Antônio de Baura;
Donatti, Lucélia;
Fabio de Oliveira Pedrosa;
Emanuel Maltempi de Souza;
Rose Adele Monteiro
Palavra-chave:
cellulose;
Herbaspirillum rubrisubalbicans M1
resumo ...
Three species of the β-Proteobacterial genus Herbaspirillum are able to fix nitrogen in endophytic associations with such important agricultural crops as maize, rice, sorghum, sugar-cane and wheat. In addition, Herbaspirillum rubrisubalbicans causes the mottled-stripe disease in susceptible sugar-cane cultivars as well as the red-stripe disease in some sorghum cultivars. The xylem of these cultivars exhibited a massive colonisation of mucus-producing bacteria leading to blocking the vessels. A cluster of eight genes (bcs) are involved in cellulose synthesis in Herbaspirillum rubrisubalbicans. Mutation of bcsZ, that encodes a 1,4-endoglucanase, impaired the exopolysaccharide production, the ability to form early biofilm and colonize sorghum when compared to the wild-type strain M1. This mutation also impaired the ability of Herbaspirillum rubrisubalbicans M1 to cause the red-stripe disease in Sorghum bicolor. We show cellulose synthesis is involved in the biofilm formation and as a consequence significantly modulates bacterial-plant interactions, indicating the importance of cellulose biosynthesis in this process.
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Diego Rodrigues Pessoa;
Anelize Terezinha Jung Finkler;
Alex Vinicius Lopes Machado;
MITCHELL, DAVID ALEXANDER;
Luiz Fernando L Lima Jr
Palavra-chave:
solid-state fermentation;
packed-bed bioreactor;
computational fluid dynamics;
heat and mass transfer
Áreas do conhecimento:
Engenharias; Engenharia Química; Processos Industriais de Engenharia Química; Processos Bioquímicos;
Ciências Biológicas; Microbiologia; Microbiologia Aplicada; Microbiologia Industrial e de Fermentação
resumo ...
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Tatiana A. Sepúlveda;
Cláudio J B Carvalho
Palavra-chave:
Taxonomy
Áreas do conhecimento:
Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes
resumo ...
(en)
Except for the introduced species, Telostylinus lineolatus Wiedemann, all Neriidae occurring in the Ethiopian Region belong to the genus Chaetonerius Hendel and only one species, C. alluaudi (Giglio-Tos), is known from the East African islands, described from Seychelles and also recorded for Madagascar and Mauritius. Herein, we describe four new species of Chaetonerius from the East African islands, including the first species of Neriidae from the Comoros (C. kotrbae sp. n.) and three new species from Madagascar (C. ebejeri sp. n., C. kirkspriggsi sp. n. and C. madagasikara sp. n.). Additionally, a redescription of C. alluaudi (Giglio-Tos) with new record for Réunion and a key for identification of Chaetonerius from the East African islands are provided.
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BARROSO, AMANDA RIBEIRO;
ARAYA, ERIKA IVANNA;
DE SOUZA, CAMILA PASQUINI;
ANDREATINI, R;
CHICHORRO, JULIANA GEREMIAS
Palavra-chave:
nocicepção;
vocalização ultrasônica;
comportamento
Áreas do conhecimento:
Ciências Biológicas; Farmacologia; Neuropsicofarmacologia
resumo ...
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Lilian A. Palomino-Alvarez;
Rosana Moreira da Rocha;
Fernando Nuno Dias Marques Simões
Palavra-chave:
ASCIDIACEA;
Taxonomia;
Biodiversidade;
México
Áreas do conhecimento:
Ciências Biológicas; Bioquímica dos Microorganismos; Enzimologia;
Ciências Biológicas; Zoologia; Taxonomia dos Grupos Recentes
resumo ...
This study is the first inventory of ascidians from shallow waters (0–25 m) of coastal and reef habitats in the southern Gulf of Mexico where ascidian diversity is poorly known. Sampled environments in 14 locations (38 sites) with 134 samples collected from 2015 to 2017 included coral reefs, coastal lagoons, mangroves, seagrass, ports, and artificial platforms. The 31 identified species comprise 19 genera and 13 families. Ten species are newly reported in the Gulf of Mexico: Ascidia panamensis Bonnet & Rocha, 2011; Ecteinascidia styeloides (Traustedt, 1882); Cystodytes roseolus Hartmeyer, 1912; Eudistoma aff. amanitum Paiva & Rocha, 2018; Eudistoma recifense Millar, 1977; Euherdmania fasciculata Monniot, 1983; Euherdmania aff. vitrea Millar, 1961; Polycarpa cartilaginea (Sluiter, 1885); Botrylloides magnicoecum (Hartmeyer, 1912) and Didemnum granulatum Tokioka, 1954. Two new species will be described separately (Clavelina sp. and Pyura sp.). This study provides the first records for 26 species ascidians for the region as well as describes increased distributions of ten Atlantic species. Thus, our data provide a starting point for future ecological, experimental and taxonomic studies of ascidians of the Gulf of Mexico.
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Ferreira, Luciana G.;
DA SILVA, ANA CLÁUDIA R.;
Miguel Noseda;
FULY, ANDRÉ L.;
DE CARVALHO, MARIANA M.;
Fujii, Mutue T.;
SANCHEZ, ELADIO F.;
CARNEIRO, JAQUELINE;
Duarte, Maria Eugênia R.
Palavra-chave:
Seaweed polysaccharides;
Antivenom properties;
Sulfated agarans;
Laurencia dendroidea;
Rhodophyta;
Chemical Structure
Áreas do conhecimento:
Ciências Biológicas; Biotecnologia;
Ciências Biológicas; Bioquímica; Química de Macromoléculas; Glicídeos
resumo ...
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POLESI, LUIZA GIACOMOLLI;
FRAGA, HUGO PACHECO DE FREITAS;
Leila do N. Vieira;
HERINGER, ANGELO SCHUABB;
ORNELLAS, THIAGO SANCHES;
DOS SANTOS, HENRIQUE PESSOA;
Miguel Pedro Guerra;
Rogério Mamoru Suzuki
Palavra-chave:
Bamboos;
Micropropagation;
Etiolation
resumo ...
Guadua chacoensis (Poaceae) is a woody bamboo native from the Atlantic forest biome. Morphogenetic and physiological studies are scarce in bamboos, and tissue culture-based biotechnologies tools can be used to investigate ultrastructure and physiological processes as well as to mass-propagate specific genotypes. This study evaluated the effect of light and dark conditions on chloroplast biogenesis as well as in the endogenous levels of zeatin (Z), abscisic acid (ABA), gibberellic acid (GA4), and jasmonic acid (JA) during in vitro culture of G. chacoensis. An increase was observed, followed by a decrease in starch content in response to light treatment, and in contrast, in darkness, an accumulation of starch which is associated to amyloplast formation at day 30 was observed. No etioplast formation was observed even in the dark and this was associated with the presence of fully developed chloroplast at the beginning of the experiment. Z levels quantified showed distinct behavior, as in light, no difference in the levels was observed, except at day 10, and in darkness, the levels increased along the evaluation time. ABA, GA4, and JA biosynthesis increased along the time of evaluation in light condition. In contrast, in darkness, the levels remained unaltered, excepted for an increase in JA levels at day 10, suggesting a strong relationship between light and these phytohormone levels. Possible reasons why light’s presence and absence cause changes in chloroplast ultrastructure and hormone endogenous levels in in vitro cultivated culms of G. chacoensis are discussed.
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Juliane Fagotti;
Daan R van der Veen;
Benita Middleton;
Jeroen L A Pennings;
Jonathan R Swann;
Debra J Skene;
Marcelo M. S. Lima;
Adriano Dias Targa;
Laís Soares Rodrigues;
Ana Carolina Duarte Noseda;
Flávia D W Cunha;
Franciele Franco Scarante;
Jéssica Lopes Ilkiw;
Fernando M Louzada;
Namrata R Chowdhury
Palavra-chave:
Parkinson´s disease biomarkers;
Rotenone;
Metabolic profiling;
Metabolomics;
Branched-chain amino acids;
Tryptophan pathway
Áreas do conhecimento:
Ciências Biológicas; Neurofisiologia
resumo ...
Parkinson’s disease (PD) is a chronic disorder that presents a range of premotor signs, such as sleep disturbances and cognitive decline, which are key non-motor features of the disease. Increasing evidence of a possible association between sleep disruption and the neurodegenerative process suggests that sleep impairment could produce a detectable metabolic signature on the disease. In order to integrate neurocognitive and metabolic parameters, we performed untargeted and targeted metabolic profiling of the rotenone PD model in a chronic sleep restriction (SR) (6 h/day for 21 days) condition. We found that SR combined with PD altered several behavioural (reversal of locomotor activity impairment; cognitive impairment; delay of rest-activity rhythm) and metabolic parameters (branched-chain amino acids, tryptophan pathway, phenylalanine, and lipoproteins, pointing to mitochondrial impairment). If combined, our results bring a plethora of parameters that represents reliable early-phase PD biomarkers which can easily be measured and could be translated to human studies.
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