9 documents found, page 1 of 1
Protective effect of natural and processed coconut water by non-thermal technol...
Miguel, Thaiz Batista Azevedo Rangel; Porto, Elaine Cristina Maciel; Pinheiro, Sergimar Kennedy de Paiva; Miguel, Emilio de CastroCoconut water is widely consumed and appreciated due its sensory, nutritional, and functional characteristics. Despite being widely consumed, this beverage has a short shelf life that can be improved through processing technologies including nonthermal technologies. Although this processing is promising, it also can generate toxic bioactive compounds of natural and synthetic origin. Their safety has been long d...
Morphological and ultrastructural changes in seminal coagulum of the squirrel m...
Sousa, Patrícia da Cunha; Leão, Danuza Leite; Sampaio, Wlaisa Vasconcelos; Vasconcelos, Fábio Roger; Pinheiro, Sergimar Kennedy de PaivaStudies with squirrel monkey semen are of special interest due to the large amount of coagulation that is a component of the semen, which is a problem that has to be overcome when the objective is harvesting of gametes. In the present study, there was characterization of the seminal coagulum of captive S. collinsi. Four samples of ejaculates were collected using electroejaculation procedures from four animals. ...
Sodium uptake and transport regulation, and photosynthetic efficiency maintenan...
Gadelha, Cibelle Gomes; Coutinho, Ítalo Antônio Cotta; Pinheiro, Sergimar Kennedy de Paiva; Miguel, Emilio de Castro; Carvalho, Humberto Henrique deRice (Oryza sativa L.) is among the most consumed cereals in the world. Its growth is severely affected by excessive salinity, leading to considerable negative economic impacts. Thus, BRS Esmeralda and Sao ˜ Francisco rice cultivars, presenting antagonist cultivation recommendations and differential salt tolerance, were selected to examine how salt stress influences ionic homeostasis and photosynthetic capacity...
H2O2 priming promotes salt tolerance in maize by protecting chloroplasts ultras...
Araújo, Gyedre dos Santos; Paula Marinho, Stelamaris de Oliveira; Pinheiro, Sergimar Kennedy de Paiva; Miguel, Emilio de Castro; Lopes, Lineker de SousaHydrogen peroxide priming has emerged as a powerful strategy to trigger multiple responses involved in plant acclimation that reinforce tolerance to abiotic stresses, including salt stress. Thus, this study aimed to investigate the impact of foliar H2O2 priming on the physiological, biochemical, and ultrastructural traits related to photosynthesis of salt-stressed plants. Besides, we provided comparative leaf m...
Ontogenesis and secretion mechanism of Morinda citrifolia L. (Rubiaceae) colleters
Pinheiro, Sergimar Kennedy de Paiva; Teófilo, F.B.S.; Lima, A.K.M.; Cordoba, Bianca Vasconcelos; Miguel, Thaiz Batista Azevedo RangelColleters are secretory structures present in more than 60 families of angiosperms, whose function is protecting the leaf primordium and meristem against biotic and abiotic damage. The colleters are developed from protoderm and ground meristem and the secretory process begins during cell differentiation. The secretion is a complex phenomenon of synthesis, separation and isolation of substances, as well as relea...
Environmental scanning electron microscopy (ESEM) of Morinda citrifolia L. (Rub...
Pinheiro, Sergimar Kennedy de Paiva; Sousa, Francinalda Xavier de; Medeiros, Paulo Rafael Lima de; Miguel, Thaiz Batista Azevedo RangelThis study describes the colleters of Morinda citrifolia L. (Rubiaceae) by using environmental scanning electron microscopy (ESEM) and energy dispersive x-ray spectroscopy (EDS). Two different developmental stages were characterized as well as the chemical composition of secretion. Colleters are secretory structures that produce mucilage protecting the meristems and leaf primordia against desiccation and/or pat...
Interaction of nanostructured materials in biological systems: toxicity of silv...
Pinheiro, Sergimar Kennedy de PaivaIn recent years, with the advancement of technology, new products have been produced and introduced into everyday life. These products have nanomaterials in their composition that provide new characteristics according to their purpose and use. Different areas such as engineering, medicine, technology and food already incorporate nanoparticles (NPs) in their composition and the daily use of these products insert...
Sodium uptake and transport regulation, and photosynthetic efficiency maintenan...
Gadelha, Cibelle Gomes; Coutinho, Ítalo Antônio Cotta; Pinheiro, Sergimar Kennedy de Paiva; Miguel, Emilio de Castro; Carvalho, Humberto Henrique deRice (Oryza sativa L.) is among the most consumed cereals in the world. Its growth is severely affected by excessive salinity, leading to considerable negative economic impacts. Thus, BRS Esmeralda and S ̃ao Francisco rice cultivars, presenting antagonist cultivation recommendations and differential salt tolerance, were selected to examine how salt stress influences ionic homeostasis and photosynthetic capacity...
Ontogênese e mecanismo de secreção em coléteres de Morinda citrifolia L. (Rubia...
Pinheiro, Sergimar Kennedy de PaivaPINHEIRO, Sergimar Kennedy de Paiva. Ontogênese e mecanismo de secreção em coléteres de Morinda citrifolia L. (Rubiaceae). 2017. 46 f. Dissertação (Mestrado em Biotecnologia de Recursos Naturais)-Universidade Federal do Ceará, Fortaleza, 2017.; Colleters are structures secretory present in more than 60 families of angiosperms, whose function is protect the leaf primordium against physical and chemical damages. ...