info:eu-repo/semantics/article
Sucrose in cyanobacteria: From a salt-response molecule to play a key role in nitrogen fixation
Fecha
2015-01Registro en:
Kolman, María de los Ángeles; Nishi, Carolina Nancy; Perez Cenci, Macarena; Salerno, Graciela Lidia; Sucrose in cyanobacteria: From a salt-response molecule to play a key role in nitrogen fixation; MDPI; Life; 5; 1; 1-2015; 102-126
2075-1729
CONICET Digital
CONICET
Autor
Kolman, María de los Ángeles
Nishi, Carolina Nancy
Perez Cenci, Macarena
Salerno, Graciela Lidia
Resumen
In the biosphere, sucrose is mainly synthesized in oxygenic photosynthetic organisms, such as cyanobacteria, green algae and land plants, as part of the carbon dioxide assimilation pathway. Even though its central position in the functional biology of plants is well documented, much less is known about the role of sucrose in cyanobacteria. In those prokaryotes, sucrose accumulation has been associated with salt acclimation, and considered as a compatible solute in low-salt tolerant strains. In the last years, functional characterizations of sucrose metabolizing enzymes, metabolic control analysis, cellular localization of gene expressions, and reverse genetic experiments have revealed that sucrose metabolism is crucial in the diazotrophic growth of heterocystic strains, and besides, that it can be connected to glycogen synthesis. This article briefly summarizes the current state of knowledge of sucrose physiological functions in modern cyanobacteria and how they might have evolved taking into account the phylogenetic analyses of sucrose enzymes.