Role of Sulfur for Algae: Acquisition, Metabolism, Ecology and Evolution

Giordano, Mario; Norici, Alessandra; Ratti, S.; Raven, John A.

doi:10.1007/978-1-4020-6863-8_20

Cited by 27 publications

(15 citation statements)

References 195 publications

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“…Selection for a mutant version of a protein that contains a smaller quantity of an element, but is otherwise similar to the wild-type version, is only possible if the element is limiting to growth (Bragg & Wagner 2009). Sulphur is rarely considered a limiting nutrient in the environment (see reviews: Giordano et al 2008;Zhao et al 2008), but our observations are consistent with a number of previous studies which have shown that protein sulphur content can evolve in response to sulphur scarcity. First, sulphur sparing has been observed in proteins that are induced during sulphur starvation (Mazel & Marlière 1989;Baudouin-Cornu et al 2001), and also following cellular events that require substantial reallocation of acquired sulphur (e.g.…”

Section: Discussionsupporting

confidence: 91%

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Protein elemental sparing and codon usage bias are correlated among bacteria

et al. 2012

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Highly expressed proteins can exhibit relatively small material costs, in terms of the quantities of carbon (C), nitrogen (N) or sulphur (S) atoms they contain. This 'elemental sparing' probably reflects selection to reduce the quantities of potentially growth-limiting elements in abundant proteins, but the evolutionary mechanisms for adaptive elemental sparing are still poorly understood. Here, we predict that the extent of 'elemental sparing' in highly expressed proteins will vary among organisms, according to the effectiveness of selection in determining the fate of mutations. We test this hypothesis in bacteria by asking whether 'elemental sparing' is correlated with codon usage bias. Bacteria exhibit extraordinary variation in their life histories and demography and consequently in the effectiveness of selection in determining whether preferred codons are used in highly expressed genes. We find that C sparing and S sparing, but not N sparing, are significantly correlated with adaptive codon usage bias among 148 genera of bacteria, suggesting that selection for elemental sparing and codon bias are promoted by similar bacterial traits. Our study helps identify principles that determine how nutrient scarcity can shape the elemental composition of proteins.

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Section: Discussionsupporting

confidence: 91%

“…Selection for a mutant version of a protein that contains a smaller quantity of an element, but is otherwise similar to the wild‐type version, is only possible if the element is limiting to growth (Bragg & Wagner 2009). Sulphur is rarely considered a limiting nutrient in the environment (see reviews: Giordano et al. 2008; Zhao et al.…”

Section: Discussionmentioning

confidence: 99%

Protein elemental sparing and codon usage bias are correlated among bacteria

et al. 2012

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“…% of lipids (dry, ash-free matter, daf.). dimethylsulfoniopropioniate as algae metabolite [33]). The pH of the slurry measured at 20.5 °C was 6.8 (METROHM 780 pH meter).…”

Section: Feedstock Compositionmentioning

confidence: 99%

Effect of process conditions on bio-oil obtained through continuous hydrothermal liquefaction of Scenedesmus sp. microalgae

Wądrzyk

Janus

Vos

et al. 2018

Journal of Analytical and Applied Pyrolysis

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Hydrothermal liquefaction of biomass in near-/supercritical water has attracted great attention in recent years. Although this technology seems to be promising for transformation of microalgal biomass, the information on the impact of feedstock and processing variables of continuous hydrothermal liquefaction on the properties of bio-oil provided in previous literature is scarce. Herein, the low-lipid Scenedesmus sp. biomass has been transformed to bio-oils through continuous hydrothermal liquefaction under various process conditions. The influence of temperature and residence time on bio-oil characteristic was discussed based on characterization by IR, GC-MS and gel permeation chromatography. The relative degree of branching of carbon chain of bio-oils components was estimated based on deconvolution of methyl and methylene IR absorption bands. The presumptive pathways of the reactions have been postulated. Finally, it was found that the parameters of bio-oil may be tailored by adjustment of processing variables, however, possible subsequent/parallel effects must be considered while designing the process.

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“…Before the reduced sulfur is incorporated into cysteine, however, iron-sulfur proteins are also involved in sulfate assimilation to provide electrons for SiR when reducing sulfite to sulfide (Padmavathi et al 2008). This indicates that iron as the iron-sulfur protein is involved in sulfate assimilation, thus, the availability of iron can affect sulfate assimilation in cells while sulfate seemed to not affect iron transport in cells according to current reported studies (Giordano et al 2008).…”

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confidence: 55%

Use of factorial experimental design to study the effects of iron and sulfur on growth of Scenedesmus acuminatus with different nitrogen sources

et al. 2019

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The aim of this study was to determine the combined effects of iron and sulfur on microalgal biomass concentration and removal efficiency of nitrogenous compounds using factorial design. Scenedesmus acuminatus (currently accepted name Tetradesmus lagerheimii) was separately cultivated in batch photobioreactors using modified N-8 media with two nitrogen sources, nitrate, and ammonium. To study the interaction effect between iron and sulfur and to reduce the total number of experimentally studied combinations, a factorial design was used. Three iron (0.1, 1, and 1.9 mg L −1) and three sulfur concentrations (3.7, 20, and 35.8 mg L −1) were employed to the modified N-8 media in this study. The results show that the final microalgal biomass concentration and nitrogen removal efficiency were more sensitive to the changes in iron and sulfur concentrations in the media with nitrate than with ammonium possibly because of the different assimilation mechanisms used by microalgae for these two nitrogen sources. The created models demonstrated that iron had a statistically significant effect on the microalgal biomass concentration and nitrate removal efficiency while sulfur did not. In addition, the interaction effect between iron and sulfur was not significant on microalgal biomass concentration and nitrogen removal. In synthetic medium with nitrate as nitrogen source, the highest microalgal biomass concentration was obtained with 1.0 mg L −1 iron and 35.8 mg L −1 sulfur.

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Role of Sulfur for Algae: Acquisition, Metabolism, Ecology and Evolution

Cited by 27 publications

References 195 publications

Protein elemental sparing and codon usage bias are correlated among bacteria

Protein elemental sparing and codon usage bias are correlated among bacteria

Effect of process conditions on bio-oil obtained through continuous hydrothermal liquefaction of Scenedesmus sp. microalgae

Use of factorial experimental design to study the effects of iron and sulfur on growth of Scenedesmus acuminatus with different nitrogen sources

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