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| Santos,Railson Schreinert dos; Araujo Júnior,Artur Teixeira de; Pegoraro,Camila; Oliveira,Antonio Costa de. |
| Abstract Iron is a well-known metal. Used by humankind since ancient times in many different ways, this element is present in all living organisms, where, unfortunately, it represents a two-way problem. Being an essential block in the composition of different proteins and metabolic pathways, iron is a vital component for animals and plants. That is why iron deficiency has a severe impact on the lives of different organisms, including humans, becoming a major concern, especially in developing countries where access to adequate nutrition is still difficult. On the other hand, this metal is also capable of causing damage when present in excess, becoming toxic to cells and affecting the whole organism. Because of its importance, iron absorption, transport and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Iron toxicity; Mineral malnutrition; Fe-enrichment; Quantitative Trait Loci. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572017000200312 |
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| Madabula,Frederico Pedro; Santos,Railson Schreinert dos; Machado,Nata; Pegoraro,Camila; Kruger,Mariana Madruga; Maia,Luciano Carlos da; Sousa,Rogerio Oliveira de; Oliveira,Antonio Costa de. |
| ABSTRACT Drought stress affects crop quality and productivity. The challenge of increasing food availability for a growing worldwide demand relies on the development of tolerant cultivars that will need to be adapted to arid and semi-arid areas. In order to help the understanding of rice response to stress, the phenotypic response of 6 Brazilian rice cultivars and 2 different crosses between them were characterized under drought conditions. Since gene regulation is an important part of root morphological responses to stressful conditions, 4 genes related to auxin response and root modifications (OsGNOM1 CRL4, OsIAA1, OsCAND1 and OsRAA1) were evaluated. The expression of these genes was analyzed in stressed rice using public available microarray data and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oryza sativ; RT-qPCR; Root; Abiotic stress. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87052016000400428 |
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| Pegoraro,Camila; Santos,Railson Schreinert dos; Krüger,Mariana Madruga; Tiecher,Aline; Maia,Luciano Carlos da; Rombaldi,Cesar Valmor; Oliveira,Antonio Costa de. |
| Tomato (Solanum lycopersicum L.) is a climacteric fruit, i.e., during ripening an increase in ethylene synthesis and high rate of respiration are observed. Low oxygen levels might inhibit or block ethylene biosynthesis and therefore retard the ripening process. Despite commercial applications of low oxygen treatments, the precise mode of action of low oxygen in fruit tissues and ripening is not well understood. In order to delineate the molecular responses to low oxygen stress in fruits, hypoxia-responsive tomato genes encoding heat shock factors, heat shock proteins, and enzymes involved in fermentation and ethylene synthesis pathways were analyzed. In this study, tomato fruit stored under hypoxia conditions showed that HSP17.7 and HSP21 genes were highly... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gene expression; Heat shock proteins; Solanum lycopersicum. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202012000200007 |
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| Severo,Joseana; Santos,Railson Schreinert dos; Casaril,Jardel; Tiecher,Aline; Silva,Jorge Adolfo; Rombaldi,Cesar Valmor. |
| Foram estudadas alternativas para a redução da adstringência (destanização) e conservação de frutos de jambolão (Syzygium cumini, L.). Para isso, no primeiro experimento, os frutos foram colhidos no estádio meio-maduro, mantidos sob temperatura ambiente e submetidos aos seguintes tratamentos: controle (atmosfera normal), 98kPa CO2, 20kPa CO2, 98kPa N2, etileno (100ppm), 1-MCP (1ppm) seguido de etileno (100ppm) e 3,85mL de etanol absoluto L-1. Foram avaliados os teores de acetaldeído e de taninos solúveis, a firmeza e a adstringência dos frutos. No segundo experimento, os frutos foram colhidos no estádio maduro e armazenados em atmosfera modificada passiva, sob temperatura ambiente (AMPA, 23±1°C) e atmosfera modificada passiva refrigerada (AMPR, 4±1°C),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Taninos solúveis; Pós-colheita; Armazenagem. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000400036 |
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