Consulta: creatorFacets:"Reis,Michele Valquíria dos"
Registros recuperados: 5
Data/hora: 10/06/2024 04:53:11

Antioxidant activity and physico-chemical analysis of Campomanesia rufa (O.Berg) Nied. fruits
Provedor de dados: 64
Autores: Abreu,Letícia Aparecida Ferreira de; Paiva,Renato; Mosqueira,Judith Georgette Alcalde; Reis,Michele Valquíria dos; Araújo,Ana Beatriz Silva; Boas,Eduardo Valério de Barros Vilas.
ABSTRACT Campomanesia rufa (O. Berg) Nied. is a native Cerrado species that presents great edible potential. However, it is a species “in danger of extinction” as recommended by the International Union for the Conservation of Nature (IUCN). No technical and scientific information about the species exists, thus demonstrating the importance of its research. The present work aimed at the physical and chemical characterization of immature and mature C. rufa fruits. The fruits showed a change in coloration from green (b * = 25.11, h = 122.43) to yellowish-green (b * = 34.26 , h = 115.73), an increase in mass (6.54 g to 10.88 g), diameter (23.76 mm to 28.03 mm) and soluble solids (8.00 to 10.80%). The fruits presented high levels of total (1246.35 mg 100 g-1)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Myrtaceae; Casaqueira; Endangered species; Vitamin C.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100239

Optimization of jenipapo in vitro seed germination process
Provedor de dados: 64
Autores: Souza,Rafaela Ribeiro de; Paiva,Patrícia Duarte de Oliveira; Silva,Raphael Reis da; Reis,Michele Valquíria dos; Nery,Fernanda Carlota; Paiva,Renato.
ABSTRACT The in vitro seed germination is an effective alternative for quickly obtaining explants with sanitary quality. However, jenipapo seeds present slow and uneven germination. Therefore, internal and external factors to seed which directly interfere in the process, they must be identified, in order to adapt better techniques to obtain seedlings. In this sense, this work aimed to optimize the in vitro germination of Genipa americana L. seeds by evaluating different factors (light quality, GA3 treatment, pre-soaking in distilled water, growing media and stratification in the dark). It was found that the seed germination of G. americana was indifferent to light, however, the best results were obtained under conditions of continuous darkness; There was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genipa americana L; In vitro culture; Ligth quality; Rubiaceae; Stratification in the dark.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542016000600658

In vitro propagation of Campomanesia rufa: An endangered fruit species
Provedor de dados: 64
Autores: Sant’Ana,Cecília Ramos de Oliveira; Paiva,Renato; Reis,Michele Valquíria dos; Silva,Diogo Pedrosa Corrêa da; Silva,Luciano Coutinho.
ABSTRACT The Campomanesia rufa is a fruitful species native from Brazil considered as endangered by the IUC (International Union for Conservation of Nature) and low information regarding its propagation is available. In this context, the aim of the present study was to develop in vitro germination, micropropagation and callogenesis protocols for the species. For in vitro germination, seeds were inoculated in MS medium supplemented with GA3 (gibberellic acid) and for shoot induction, the medium was supplemented with three different cytokinins BA (benzyladenine), BAP (6-Benzylaminopurine) or TDZ (Thidiazuron). For shoot growth, culture medium containing BA, BAP, TDZ were maintained under white fluorescent lamps and blue:red light-emitting diodes (LED). GA3...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tissue culture; Micropropagation; Myrtaceae; Casaqueira.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000400372

Temperature and GA3 on ROS and cytogenetic stability during in vitro cultivation of strelitzia zygotic embryos
Provedor de dados: 64
Autores: Figueiredo,Júnia Rafael Mendonça; Paiva,Patrícia Duarte de Oliveira; Silva,Diogo Pedrosa Corrêa da; Paiva,Renato; Souza,Rafaela Ribeiro; Reis,Michele Valquíria dos.
ABSTRACT Tropical species may require higher temperatures as well as higher growth regulator concentrations for in vitro development. Since these conditions may affect plant metabolism, the objective of this study was to identify how different temperatures and gibberellin concentrations may affect the in vitro development of strelitzia embryos, analyzing the effect on ROS and cytogenetic stability. Zygotic embryos were cultivated on MS medium supplemented with 5, 10 and 20 µM GA3 under temperatures of 25 °C, 30/25 °C and 30 °C. After 60 days, higher embryonic germination rate (72%) and shoot length of plantlets (3.14 cm) were observed on medium containing 20 µM gibberellic acid (GA3). At this concentration, there was an increase in nitrate reductase...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Antioxidant; Embryo culture; Gibberellin; Nitrate reductase.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542021000100204

Transcriptional responses of Rosa rugosa to salt stress and salt shock
Provedor de dados: 64
Autores: Reis,Michele Valquíria dos; Rouhana,Laura Vaughn; Paiva,Patrícia Duarte de Oliveira; Silva,Diogo Pedrosa Correia da; Paiva,Renato; Korban,Schuyler.
ABSTRACT Rugosa rugosa has high tolerance to various stresses; however, the molecular mechanisms of this behavior under adverse conditions are unclear. The objective of this study is to investigate expression patterns of stress-related genes in response to salinity stress. Changes in transcript levels of R. rugose, grown under different salt stress conditions (0, 25, 50, and 100 mM NaCl) over a long exposure period (30 days), have been investigated. In addition, the effects of salt shock stress on seedlings exposed to a high level (200 mM) of NaCl for a relatively short duration (3 h) have also been investigated. Expression levels of selected differentially expressed genes have been determined using relative reverse transcription polymerase chain reaction...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rosaceae; Salinity; Salt tolerance; Ion homeostasis.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542020000100241