2011
DOI: 10.1111/j.1574-6976.2010.00234.x
|View full text |Cite
|
Sign up to set email alerts
|

Molecular biology of cyanobacterial salt acclimation

Abstract: High and changing salt concentrations represent major abiotic factors limiting the growth of microorganisms. During their long evolution, cyanobacteria have adapted to aquatic habitats with various salt concentrations. High salt concentrations in the medium challenge the cell with reduced water availability and high contents of inorganic ions. The basic mechanism of salt acclimation involves the active extrusion of toxic inorganic ions and the accumulation of compatible solutes, including sucrose, trehalose, g… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1

Citation Types

15
366
3
1

Year Published

2011
2011
2021
2021

Publication Types

Select...
6
1

Relationship

0
7

Authors

Journals

citations
Cited by 398 publications
(385 citation statements)
references
References 237 publications
(580 reference statements)
15
366
3
1
Order By: Relevance
“…These data suggest that the presence of COX and at least one plastoquinolreduced terminal oxidase is of physiological importance in cyanobacteria. The majority of the strains (15 out of 19) that encode COX and more than one plastoquinolreduced terminal oxidase are either halotolerant, as indicated by the presence of one or more of the nhaP genes, encoding a cytoplasmic localized Na + /H + transporter (Hagemann, 2011), and/or nitrogen fixers, identified by the presence of nifH, encoding the iron-containing component of nitrogenase (Ben-Porath and Zehr, 1994). In each case, it is possible that additional terminal oxidases are required to provide sufficient ATP for Na + export under conditions where photosynthesis is reduced (Hagemann, 2011) and to remove oxygen that may inhibit nitrogenase activity (Berman-Frank et al, 2001;Staal et al, 2003).…”
Section: Conservation Of Terminal Oxidases In Cyanobacteriamentioning
confidence: 99%
See 1 more Smart Citation
“…These data suggest that the presence of COX and at least one plastoquinolreduced terminal oxidase is of physiological importance in cyanobacteria. The majority of the strains (15 out of 19) that encode COX and more than one plastoquinolreduced terminal oxidase are either halotolerant, as indicated by the presence of one or more of the nhaP genes, encoding a cytoplasmic localized Na + /H + transporter (Hagemann, 2011), and/or nitrogen fixers, identified by the presence of nifH, encoding the iron-containing component of nitrogenase (Ben-Porath and Zehr, 1994). In each case, it is possible that additional terminal oxidases are required to provide sufficient ATP for Na + export under conditions where photosynthesis is reduced (Hagemann, 2011) and to remove oxygen that may inhibit nitrogenase activity (Berman-Frank et al, 2001;Staal et al, 2003).…”
Section: Conservation Of Terminal Oxidases In Cyanobacteriamentioning
confidence: 99%
“…Energization of both the thylakoid and cytoplasmic membrane electron transfer chains is important under conditions of salt stress in Synechocystis (Jeanjean et al, 1990(Jeanjean et al, , 1993Peschek et al, 1994) and Synechococcus sp. PCC 6311 (Fry et al, 1986), possibly to provide a proton gradient for Na + /H + transporters localized in the cytoplasmic membrane under conditions when photosynthetic activity is low (Hagemann, 2011). The role and membrane localization of PTOX, which in cyanobacteria is predominantly found in marine strains, have not been investigated but may provide an additional electron sink under iron-deprived conditions, when cyt b 6 f and PSI are limited (Bailey et al, 2008).…”
mentioning
confidence: 99%
“…Research of salt acclimation is important because large-scale cultivation of cyanobacteria, for example for bioenergy production, would best occur in brackish water or seawater, as fresh water supplies of the Earth are limited. Salt acclimation processes in cyanobacteria are already fairly well known (for recent review, see Hagemann, 2011) but the sensing and transmission of salt signals are not yet well understood.…”
mentioning
confidence: 99%
“…The third phase is characterized by an exchange of Na + to K + that allows the reactivation of photosynthesis, and the beginning of synthesis of compatible solutes (Reed et al, 1985). In Synechocystis, as in many other moderately halotolerant species, the main compatible solute is glucosylglycerol (Hagemann, 2011). Salt addition activates an inactive form of glucosylglycerol-phosphate synthase, and also enhances the transcription of the ggpS gene encoding glucosylglycerol-phosphate synthase (Marin et al, 2002;Stirnberg et al, 2007;Hagemann, 2011;Novak et al, 2011).…”
mentioning
confidence: 99%
See 1 more Smart Citation