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Alterations in fatty acid composition due to cold exposure at the vegetative stage in rice Braz. J. Plant Physiol.
Cruz,Renata Pereira da; Golombieski,Jaqueline Ineu; Bazana,Maiara Taís; Cabreira,Caroline; Silveira,Taíse Foletto; Silva,Leila Picolli da.
Rice is a tropical plant, so cold temperature may be detrimental to its development, depending on the genotype and environmental conditions. Degree of lipid unsaturation has been related to cold tolerance due to its effect on membrane stability. So, the aim of this study was to characterize the fatty acid composition and its alterations due to cold temperature in rice genotypes of diversified origin. Forty-four rice genotypes at the V4 stage were submitted to two temperature conditions: 10°C and 28°C for two days and after this they had their leaves collected for lipid extraction and quantification. Control plants were allowed to regrow until presenting four leaves fully expanded and then were subjected to 10°C for ten days for cold tolerance evaluation....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa L.; Lipid; Linolenic acid; Cold tolerance; Membrane stability; Plant survival.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202010000300007
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Identification of the soybean HyPRP family and specific gene response to Asian soybean rust disease Genet. Mol. Biol.
Bücker Neto,Lauro; Oliveira,Rafael Rodrigues de; Wiebke-Strohm,Beatriz; Bencke,Marta; Weber,Ricardo Luís Mayer; Cabreira,Caroline; Abdelnoor,Ricardo Vilela; Marcelino,Francismar Correa; Zanettini,Maria Helena Bodanese; Passaglia,Luciane Maria Pereira.
Soybean [Glycine max (L.) Merril], one of the most important crop species in the world, is very susceptible to abiotic and biotic stress. Soybean plants have developed a variety of molecular mechanisms that help them survive stressful conditions. Hybrid proline-rich proteins (HyPRPs) constitute a family of cell-wall proteins with a variable N-terminal domain and conserved C-terminal domain that is phylogenetically related to non-specific lipid transfer proteins. Members of the HyPRP family are involved in basic cellular processes and their expression and activity are modulated by environmental factors. In this study, microarray analysis and real time RT-qPCR were used to identify putative HyPRP genes in the soybean genome and to assess their expression in...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Fungal disease; HyPRP genes; Glycine max; Real time RT-qPCR.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000200012
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Inheritance of rice cold tolerance at the seedling stage Scientia Agricola
Cruz,Renata Pereira da; Duarte,Ismael Tiago de Lima; Cabreira,Caroline.
Rice (Oryza sativa L.) cold tolerance at the initial stages of development is a highly desirable trait to be incorporated into the state of Rio Grande do Sul, Brazil, cultivars, but selection for this trait must be performed under controlled temperature conditions, which limits the number of lines that can be evaluated. Knowledge of the inheritance of this trait is important to define breeding strategies. So the aim of this paper was to study the genetic basis of rice cold tolerance at the vegetative stage. Six genotypes with constrasting cold tolerance reactions were crossed in a diallel scheme without the reciprocals. The parents and the F1 and F2 generations were cultivated in a greenhouse until the V4 stage, when they were submitted to 10°C for ten...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Oryza sativa L.; Genetics; Low temperature; Vegetative stage.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000600008
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