Different nitrogen sources and growth responses of Spirulina platensis in microenvironments

Costa, Jorge Alberto Vieira; Cozza, Karla Leal; Oliveira, Lucielen; Magagnin, Glênio

doi:10.1023/a:1011925022941

Cited by 56 publications

(13 citation statements)

References 11 publications

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“…Free nitrogen molecules in the atmosphere can be converted into combined nitrogen via atmospheric, industrial, and biological nitrogen fixation (Lanyon, 1995; Nishibayashi et al, 2004; Olivares et al, 2013). Combined nitrogen, primarily ammonium nitrogen and nitrate nitrogen, subsequently become the objects of intense competition among plants and microorganisms (Costa et al, 2001; Alves et al, 2016). Ammonium nitrogen can be directly assimilated into amino acids via the enzymes glutamine synthetase (GS) and glutamate synthase (GOGAT) (Wu et al, 2016), whereas nitrate nitrogen must first be reduced to nitrite nitrogen in the cytosol, after which it is immediately reduced to ammonium nitrogen in chloroplasts or plastids (Monier et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Ammonium Nitrogen Tolerant Chlorella Strain Screening and Its Damaging Effects on Photosynthesis

et al. 2019

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Nitrogen is an essential nutrient element. Ammonium nitrogen, one of the most common nitrogen sources, is found in various habitats, especially wastewater. However, excessive amounts of ammonium nitrogen can be toxic to phytoplankton, higher plants, fish, and other animals, and microorganisms. In this study, we explored the tolerance of green algae to ammonium nitrogen using 10 Chlorella strains. High concentrations of ammonium nitrogen directly inhibited the growth of Chlorella, but the degree of inhibition varied by strain. With the EC50 of 1.6 and 0.4 g L−1, FACHB-1563 and FACHB-1216, respectively had the highest and lowest tolerance to ammonium nitrogen among all strains tested, suggesting that FACHB-1563 could potentially be used to remove excess ammonium nitrogen from wastewater in bioremediation efforts. Two strains with the highest and lowest tolerance to ammonium nitrogen were selected to further explore the inhibitory effect of ammonium nitrogen on Chlorella. Analysis of chlorophyll fluorescence, oxygen evolution, and photosynthesis proteins via immunoblot showed that photosystem II (PSII) had been damaged when exposed to high levels of ammonium nitrogen, with the oxygen-evolving complex as the primary site, and electron transport from QA− to QB was subsequently inhibited by this treatment. A working model of ammonium nitrogen competition between N assimilation and PSII damage is proposed to elucidate that the assimilation rate of ammonium nitrogen by algae strains determines the tolerance of cells to ammonium nitrogen toxicity.

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Section: Introductionmentioning

confidence: 99%

Ammonium Nitrogen Tolerant Chlorella Strain Screening and Its Damaging Effects on Photosynthesis

et al. 2019

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“…This hypothesis is consistent with the obtained results; as the analysis of animal wastes showed significant high nitrogen content (168 mg g -1 manure powder). Costa et al (2001) and Madkour et al (2012b) also noted that different nitrogen sources or/and concentrations affected the development of A. platensis. Beside of that, the obtained results clarified the efficiency of animal manure media for biomass production in large-scale during three continuous culturing cycles and under field conditions (Figure 4) indicating that animal manure was the factor with the greatest influence on biomass production.…”

Section: Discussionmentioning

confidence: 94%

Mass production of Arthrospira platensis on the livestock manure for use as a protein source in animal feed

Abdel-Aal¹,

Mofeed²

2020

Egypt. J. of Aquatic Biolo. and Fish.

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“…Nitrogen is an important nutrient for the production of microalgal biomass. The nitrogen content in microalgal biomass can range from 1% to more than 10%, which is dependent upon the amount, availability and type of nitrogen source (Vieira et al, 2001;Markou and Georgakakis, 2011). In this study, the effects of different kinds of nitrogen sources on cell density and growth characteristics of Synechococcus sp.…”

Section: Microalgal Growth Characteristicsmentioning

confidence: 92%

Growth characteristics and nutrient removal properties of the freshwater cyanobacterium Synechococcus sp. PCC7942 under different kinds of nitrogen sources

Deng¹

2012

Afr. J. Microbiol. Res.

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Microalgae are promising candidates for the nutrient removal in tertiary treatment of domestic wastewater. In this study, batch experiments were carried out to investigate the effects of five different kinds of nitrogen sources (NaNO 3 , urea, NaNO 2 , NH 4 Cl and glycine) on the growth characteristics and nutrient removal properties of a freshwater cyanobacterium, Synechococcus sp. PCC7942. Among the nitrogen sources, the order of specific growth rate (r) of the microalga was NH 4-N>NO 3-N>NO 2-N>urea-N>glycine-N, while that of chlorophyll yield coefficients was glycine-N>NO 3-N>NO 2-N>NH 4-N>urea-N. With nitrate, nitrite and glycine as nitrogen source, total nitrogen (TN) and total phosphorus (TP) could be removed efficiently. However, final cell density and nutrient removal efficiency were relatively low when urea or ammonium was used as nitrogen source.

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Different nitrogen sources and growth responses of Spirulina platensis in microenvironments

Cited by 56 publications

References 11 publications

Ammonium Nitrogen Tolerant Chlorella Strain Screening and Its Damaging Effects on Photosynthesis

Ammonium Nitrogen Tolerant Chlorella Strain Screening and Its Damaging Effects on Photosynthesis

Mass production of Arthrospira platensis on the livestock manure for use as a protein source in animal feed

Growth characteristics and nutrient removal properties of the freshwater cyanobacterium Synechococcus sp. PCC7942 under different kinds of nitrogen sources

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