Sulphur and Algae: Metabolism, Ecology and Evolution

Giordano, Mario; Prioretti, Laura

doi:10.1007/978-3-319-24945-2_9

Cited by 31 publications

(40 citation statements)

References 196 publications

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“…Accordingly, sulphur removal was not as imperative as nitrogen and phosphorus removal in the designed assays. Although it is an important element for microalgae, being present in essential amino acids [50], its assimilation is still a poorly documented topic and the currently available information is limited to very few species [51]. Analysing the variations of sulphate concentrations (Figure 5) and the calculated removal efficiencies (Table 3), it is possible to conclude that no significant removal occurred in any case, since the variations were almost negligible (maximum removal efficiencies obtained were 12%).…”

Section: Discussionmentioning

confidence: 99%

Nitrogen Removal from Landfill Leachate by Microalgae

Pereira

Gonçalves

Moreira

et al. 2016

IJMS

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Landfill leachates result from the degradation of solid residues in sanitary landfills, thus presenting a high variability in terms of composition. Normally, these effluents are characterized by high ammoniacal-nitrogen (N–NH4+) concentrations, high chemical oxygen demands and low phosphorus concentrations. The development of effective treatment strategies becomes difficult, posing a serious problem to the environment. Phycoremediation appears to be a suitable alternative for the treatment of landfill leachates. In this study, the potential of Chlorella vulgaris for biomass production and nutrients (mainly nitrogen and phosphorus) removal from different compositions of a landfill leachate was evaluated. Since microalgae also require phosphorus for their growth, different loads of this nutrient were evaluated, giving the following N:P ratios: 12:1, 23:1 and 35:1. The results have shown that C. vulgaris was able to grow in the different leachate compositions assessed. However, microalgal growth was higher in the cultures presenting the lowest N–NH4+ concentration. In terms of nutrients uptake, an effective removal of N–NH4+ and phosphorus was observed in all the experiments, especially in those supplied with phosphorus. Nevertheless, N–NO3− removal was considered almost negligible. These promising results constitute important findings in the development of a bioremediation technology for the treatment of landfill leachates.

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Section: Discussionmentioning

confidence: 99%

Nitrogen Removal from Landfill Leachate by Microalgae

Pereira

Gonçalves

Moreira

et al. 2016

IJMS

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“…Very little is known on the following steps of sulfur assimilation in algae; the few biochemical evidence and the genome data suggest that, as in plants, the sulfate in APS is reduced to sulfite by APS reductase; a highly active and nearly constitutive sulfite reductase leads to the production of sulfide, whose incorporation into cysteine is mediated by the O-acetyl serine thiol-lyase/serine acetyl transferase (OASTL/SAT) complex and by its regulation (Takahashi et al, 2011;Giordano and Prioretti, 2014; Fig. 2).…”

Section: Sulfurmentioning

confidence: 98%

“…It is interesting that the redox sensitivity of ATP-S in algae is correlated with the number and location of cysteine residues in the protein sequence: a much larger number of cysteines (7-10; 5 of which in the same positions) are present in the ATP-Ses whose activity responds to thiol reduction/oxidation. The redox insensitive ATP-S of Arabidopsis and that of Rhodophyta only contains 2 cysteines; 4 cysteines are present in Synechocystis PCC6803 and in most freshwater and marine cyanobacteria of genera different form Prochlorococcus and Synechococcus; in A. klebsii, five of the 6 cysteines in the ATP-S protein sequence are in different positions from those of the other eukaryotic algae (Giordano and Prioretti, 2014). The phylogeny of ATP-S was thoroughly described by Patron et al (2008): it is noteworthy that the genes encoding this enzymes in Arabidopsis have little sequence similarity with that of algae; the only exceptions are the sequences encoding the ATPS moieties of the fused ATP-S/APS kinase that are present in the genome of some haptophytes and heterokontophytes, which have a high degree of similarity with Arabidopsis ATP-S genes (Bromke et al, 2013;Giordano and Prioretti, 2014).…”

Section: Sulfurmentioning

confidence: 99%

Nitrogen and sulfur assimilation in plants and algae

2014

Self Cite

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“…Šis elementas įeina į daugelio funkcinių ir struktūrinių junginių sudėtį bei yra itin svarbus baltymų sintezei ir aminorūgšių susidarymui (Giordano, Prioretti 2016). 8 pav.…”

Section: Gauti Rezultatai Ir Jų Analizėunclassified

Research of Biogas Purification Using Microalgae Monoraphidium Griffithii Suspension

Bingelytė

Zagorskis

2017

Science - Future of Lithuania

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2017 © Straipsnio autoriai. Leidėjas VGTU leidykla "Technika". Šis straipsnis yra atvirosios prieigos straipsnis, turintis Kūrybinių bendrijų (Creative Commons) licenciją (CC BY-NC 4.0), kuri leidžia neribotą straipsnio ar jo dalių panaudą su privaloma sąlyga nurodyti autorių ir pirminį šaltinį. Straipsnis ar jo dalys negali būti naudojami komerciniams tikslams. Biodujų valymas naudojant mikrodumblių suspensijas ne visais atvejais užtikrina itin aukštą biodujų išvalymo efektyvumą, todėl svarbu tobulinti tokių sistemų konstrukcijas, optimizuoti terpių sąlygas, parinkti tinkamus mikrodumblius. MOKSLAS -LIETUVOS ATEITIS SCIENCE -FUTURE OF LITHUANIAGėlame vandenyje plačiai paplitę mikrodumbliai Monoraphidium griffithi yra priskiriami prie didelę absorbcinę teršalų gebą turinčių kultūrų.Naudojant nevalytas biodujas kaip anglies dioksido šaltinį Monoraphidium griffithii gyvybinei veiklai, pasiekiama dvejopa nauda: 1) išvalytose biodujose nelieka jokių kenksmingų sudedamųjų komponentų; 2) sumažinamos biomasės gamybos sąnaudos (Hendroko et al. 2013). Reikšminiai žodžiai: metanas, biologinis valymas, mikrodumblių kultūra, biodujos, suspensija, fotobioreaktorius. BIODUJŲ VALYMO EFEKTYVUMO TYRIMAI NAUDOJANT MIKRODUMBLIŲ MONORAPHIDIUM GRIFFITHII

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Sulphur and Algae: Metabolism, Ecology and Evolution

Cited by 31 publications

References 196 publications

Nitrogen Removal from Landfill Leachate by Microalgae

Nitrogen Removal from Landfill Leachate by Microalgae

Nitrogen and sulfur assimilation in plants and algae

Research of Biogas Purification Using Microalgae Monoraphidium Griffithii Suspension

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