Artículo
Soluble sugars: Metabolism, sensing and abiotic stress. A complex network in the life of plants
Rosa, Mariana Daniela
; Prado, Carolina del Valle
; Podazza, Griselda
; Interdonato, Osvaldo Roque; González, Juan Antonio; Hilal, Mirna Beatriz; Prado, Fernando Eduardo
Fecha de publicación:
05/2009
Editorial:
Landes Biosciences
Revista:
Plant Signaling and Behavior
ISSN:
1817-406X
e-ISSN:
1559-2324
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Plants are autotrophic and photosynthetic organisms that both produce and consume sugars. Soluble sugars are highly sensitive to environmental stresses, which act on the supply of carbohydrates from source organs to sink ones. Sucrose and hexoses both play dual functions in gene regulation as exemplified by the upregulation of growth-related genes and downregulation of stress-related genes. Although coordinately regulated by sugars, these growth- and stress-related genes are upregulated or downregulated through HXK-dependent and/or HXK-independent pathways. Sucrose-non-fermenting-1- (SNF1-) related protein pathway, analogue to the protein kinase (SNF-) yeast-signalling pathway, seems also involved in sugar sensing and transduction in plants. However, even if plants share with yeast some elements involved in sugar sensing, several aspects of sugar perception are likely to be peculiar to higher plants. In this paper, we have reviewed recent evidences how plants sense and respond to environmental factors through sugar-sensing mechanisms. However, we think that forward and reverse genetic analysis in combination with expression profiling must be continued to uncover many signalling components, and a full biochemical characterization of the signalling complexes will be required to determine specificity and cross-talk in abiotic stress signalling pathways.
Palabras clave:
Abiotic Stress
,
Gene Expression
,
Glucose
,
Metabolism
,
Sucrose
,
Sugar Sensing
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Identificadores
Colecciones
Articulos(CCT - NOA SUR)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NOA SUR
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - NOA SUR
Citación
Rosa, Mariana Daniela; Prado, Carolina del Valle; Podazza, Griselda; Interdonato, Osvaldo Roque; González, Juan Antonio; et al.; Soluble sugars: Metabolism, sensing and abiotic stress. A complex network in the life of plants; Landes Biosciences; Plant Signaling and Behavior; 4; 5; 5-2009; 388-393
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