Effects of heavy metals and light levels on the biosynthesis of carotenoids and fatty acids in the macroalgae Gracilaria tenuistipitata (var. liui Zhang &amp; Xia)

Pinto, Ernani; Carvalho, Ana P.; Cardozo, Karina Helena Morais; Malcata, F. Xavier; Anjos, Fabyana Maria dos; Colepicolo, Pio

doi:10.1590/s0102-695x2011005000060

Cited by 50 publications

(29 citation statements)

References 36 publications

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“…Their findings can be used to explain the MUFA increase and PUFA decrease in cultures under N limitation in our study. Our finding that PUFA contents are significantly affected and their levels reduced in the presence of trace metals is also in accordance with other studies (Rocchetta et al, 2006;Pinto et al, 2011). The fatty acid 18:2(n-6) can be used as a nutrient stress indicator in C. vulgaris because its concentration increases under N limitation and Cd stress, unlike other PUFAs.…”

Section: Discussionsupporting

confidence: 93%

“…Fatty acid production by C. vulgaris exhibited a high degree of plasticity with changing culture conditions, with most fatty acids having long chain length groups of 16 and 18 carbon atoms (Brett et al, 2006;Petkov & Garcia, 2007;Villar-Argaiz et al, 2009). Pinto et al (2011) showed that SAFA and MUFA content of Gracilaria tenuistipitata increased with increasing Cd concentration, which is in agreement with our study showing increased SAFA and MUFA production by C. vulgaris in the presence of Cd. The accumulation of these fatty acids groups is thought to be dependent on oxidative stress and the production of reactive oxygen species (Pinto et al, 2003(Pinto et al, , 2011Rocchetta et al, 2006).…”

Section: Discussionsupporting

confidence: 92%

“…Pinto et al (2011) showed that SAFA and MUFA content of Gracilaria tenuistipitata increased with increasing Cd concentration, which is in agreement with our study showing increased SAFA and MUFA production by C. vulgaris in the presence of Cd. The accumulation of these fatty acids groups is thought to be dependent on oxidative stress and the production of reactive oxygen species (Pinto et al, 2003(Pinto et al, , 2011Rocchetta et al, 2006). Griffith et al (2012) reported that C. vulgaris responds to N limitation by increasing its SAFA and MUFA and decreasing its PUFA content.…”

Section: Discussionsupporting

confidence: 92%

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Effects of cadmium and nitrogen on lipid composition of Chlorella vulgaris (Trebouxiophyceae, Chlorophyta)

Chia

Lombardi

Melão

et al. 2013

European Journal of Phycology

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Investigations were carried out to evaluate lipid class and fatty acid composition of Chlorella vulgaris in relation to several combinations of cadmium (2 Â 10 -8 ; 10 À7 M Cd) and nitrogen (2.9 Â 10 À6 to 1.1 Â 10 À3 M N) concentrations. Triacylglycerols (TAG), acetone mobile polar lipids (AMPL) and phospholipids (PL) were the major lipid classes of C. vulgaris under all the tested conditions. TAG was the lipid class accumulated in the highest amount in N-limited C. vulgaris. The AMPL lipid class was lowest at the lowest N and highest Cd treatment. High proportions of saturated fatty acids (SAFA) and monounsaturated fatty acids (MUFA) in the total lipid extracts were recorded under N limitation in the presence of Cd. 16:1(n-11) was an exception among the MUFA as its levels decreased at low N. Total polyunsaturated FA (PUFA), !3 PUFA levels, and PUFA:SAFA ratios increased with increasing N concentrations, but when exposed to Cd, their levels were significantly reduced. Unlike the other PUFA, 18:2(n-6) increased with increasing N limitation. Significant negative relationships between TAG, MUFA and SAFA with N were recorded. Cd had a positive correlation with TAG, while N was with AMPL, PL and PUFA. In conclusion, a combination of N limitation and Cd stress significantly altered the lipid composition of C. vulgaris, and N limitation had the most significant overall effect on lipid class and fatty acid composition of the microalga.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 92%

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Effects of cadmium and nitrogen on lipid composition of Chlorella vulgaris (Trebouxiophyceae, Chlorophyta)

Chia

Lombardi

Melão

et al. 2013

European Journal of Phycology

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“…On the other hand, Pinto et al [17] reported that the exposure of heavy metals to Gracilaria tenuistipitata for 6 induced the synthesis of carotenoids. The response has been utilized in environmental pollutants detection.…”

Section: Introductionmentioning

confidence: 99%

Rapid Detection of Heavy Metals with the Response of Carotenoids in Daucus Carota

Wong¹,

Choong²

2014

IJESD

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“…The comparison suggested a lower content of carotenoids in G. domingensis compared to G. birdiae. Gracilaria is economically important for agar production in Brazil; however, there is little quantitative information on the individual carotenoids and the fatty acid composition of these two species (Carnicas et al, 1999;Guaratini et al, 2005;Guaratini et al, 2007;Pinto et al, 2011). Valuable products extracted from algae have been studied at different levels (Pinto et al, 2003;Cardozo et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Antioxidant activity and chemical composition of the non polar fraction of Gracilaria domingensis (Kützing) Sonder ex Dickie and Gracilaria birdiae (Plastino & Oliveira)

Guaratini

Lopes

Marinho‐Soriano³

et al. 2012

Rev. bras. farmacogn.

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Gracilaria domingensis (Kützing) Sonder ex Dickie and Gracilaria birdiae (Plastino & Oliveira) (Gracilariales, Rhodophyta) are seaweeds that occur on the Brazilian coast. Based on their economic and pharmaceutical importance, we investigated the antioxidant activity of the methanolic, ethyl acetate and hexane extracts of both species. The hexane extracts display a high antioxidant activity and comparative analyses indicated G. birdiae as the most active species. Chemical investigation of these fractions showed several carotenoids and fatty acids, as well as cholesterol and sitosterol derivatives. HPLC-DAD analysis of G. birdiae showed violaxanthin (0.04 μg.mg -1 of dry material), antheraxanthin (5.31 μg.mg -1 ), aloxanthin (0.09 μg.mg -1 ), zeaxanthin (0.45 μg.mg -1 ) and β-carotene (0.37 μg.mg -1 ) as the major carotenoids. G. domingensis showed a similar carotenoid profi le, however, with much lower concentration than G. birdiae. Gas chromatography coupled to mass spectrometry was used to determine other nonpolar compounds of these seaweeds. The main compounds detected in both studied species were the fatty acids 16:0; 18:1 Δ 9 ; 20:3 Δ 6,9,12 , 20:4 Δ 5,8,11,14 . We found no specifi city of compounds in either species. However, G. birdiae, presented higher contents of carotenoids and arachidonic acid than G. domingensis.

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Effects of heavy metals and light levels on the biosynthesis of carotenoids and fatty acids in the macroalgae Gracilaria tenuistipitata (var. liui Zhang & Xia)

Cited by 50 publications

References 36 publications

Effects of cadmium and nitrogen on lipid composition of Chlorella vulgaris (Trebouxiophyceae, Chlorophyta)

Effects of cadmium and nitrogen on lipid composition of Chlorella vulgaris (Trebouxiophyceae, Chlorophyta)

Rapid Detection of Heavy Metals with the Response of Carotenoids in Daucus Carota

Antioxidant activity and chemical composition of the non polar fraction of Gracilaria domingensis (Kützing) Sonder ex Dickie and Gracilaria birdiae (Plastino & Oliveira)

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