Unterschiedliche Aufnahme von Cadmium in Saccharomyces- BZW. Rhodotorula-Zellen

Rösick, Erika; Mangir, M.; Lochmann, Ernst-Randolf

doi:10.1016/0045-6535(86)90550-3

Cited by 6 publications

(3 citation statements)

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“…Thus, there are two possible explanations for the toxicity decrease of cadmium when increasing yeast extract strength: the organic matter reacts The averages followed by the same letters do not differ among themselves according to the Tukey test to 1% of confidence. MOWLL, 1983;RÖSICK, 1986). Thus, in low dextrose the cadmium was less toxic (Table 2).…”

Section: Resultsmentioning

confidence: 97%

“…Moreover, yeasts have shown to take up have metals ions (GÖKSUNGUR; UREN; GÜVENÇ, 2005;GRAFL;SCHWANTES, 1983; MARIANO-da-SILVA; PRADO-FILHO, 1998; MARIANO-DA-SILVA; PRADO-FILHO, 1999;MARIANO-DA-SILVA, 2001;PARK;JUNG, 2003;RÖSICK;MANGIR;LOCHMANN, 1986;VASUDEVAN;PADMAVATHY;DHINGRA, 2002), and have a potential as effective biosorbents. Hence, cell growth (MARIANO-da-SILVA; BASSO, 2004), cell viability (MARIANOda-SILVA, 1998;MARIANO-da-SILVA, 2001;MARIANO-da-SILVA et al, 2007), electron transport (BITTON et al, 1984), and mitochondrial respiration (HAUBENSTRICKER et al, 1990) of Sacharomyces cerevisiae have all been selected as parameters for pollution assessment.…”

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confidence: 99%

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Effect of pH, dextrose and yeast extract on cadmium toxicity on Saccharomyces cerevisiae PE-2

Mariano-da-Silva¹,

Oliveira²,

Leite³

et al. 2009

Ciênc. Tecnol. Aliment.

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Section: Resultsmentioning

confidence: 97%

mentioning

confidence: 99%

Effect of pH, dextrose and yeast extract on cadmium toxicity on Saccharomyces cerevisiae PE-2

Mariano-da-Silva¹,

Oliveira²,

Leite³

et al. 2009

Ciênc. Tecnol. Aliment.

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“…After absorption, the cations are transported through the cell membrane, probably by cation transporting proteins, to the cytosol, where they are linked to metalloproteins in the vacuole 6,32,35,45 .…”

Section: Introductionmentioning

confidence: 99%

Effects of nickel on the mineral composition of Fleischmanns yeast (Saccharomyces cerevisiae)

Mariano-da-Silva¹,

Brait²,

Angeloni³

et al. 2007

Ciênc. Tecnol. Aliment.

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Sugar cane juice containing 12% (w.w -1 ) of total reducing sugars and 0.0 to 5.0 mmol of nickel L -1 , with pH ranging from 3.5 to 6.5, was inoculated with Fleischmann's yeast (Saccharomyces cerevisiae) (10% w.w -1 ). Six hours after fermentation, the yeast's cellular viability and trehalose content were evaluated. The resulting must was centrifuged and the raw yeast was analyzed by atomic absorption spectroscopy to evaluate the intracellular levels of calcium, copper, iron, magnesium, manganese, nickel, phosphorus, potassium, sulfur and zinc. The intracellular levels of iron, magnesium and calcium were affected and the yeast's susceptibility to nickel was enhanced by the decrease in pH. The yeast's growth was not affected by nickel at high pH, but the toxic effects of nickel were potentiated at low pH. Keywords: nickel; mineral composition; Saccharomyces cerevisiae; yeast. ResumoO presente trabalho teve por finalidade estudar o acúmulo e os efeitos do níquel na composição mineral da levedura Saccharomyces cerevisiae Fleichmann fermentando mosto de caldo de cana com contaminações controladas, em níveis subtóxicos, do citado metal. O mosto esterelizado (120 °C/20 minutos), com 12% de açúcares redutores totais (ART) e quatro níveis de pH (3,5; 4,5; 5,5 e 6,5), foi acrescido com o sal cloreto de níquel (NiCl 2 .6H 2 O), resultando em seis níveis de contaminações (0,0; 0,1; 0,5; 1,0; 2,0 e 5,0 mmol Ni.L -1 ) e 24 tratamentos. A inoculação do mosto foi executada com fermento de panificação (10% p.p -1 ). Depois de 6 horas de fermentação, as leveduras foram obtidas por centrifugação, para posterior análise da viabilidade celular, dos teores de trealose, bem como dos teores celulares de níquel, fósforo, potássio, cálcio, magnésio, enxofre, cobre, ferro, manganês e zinco. O níquel parece influenciar nos teores intracelulares de ferro, magnésio e cálcio, sendo que a toxidade do níquel foi potencializa com o decréscimo do pH.

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Evidence for a cadmium-binding-protein in Saccharomyces cerevisiae

Mangir

Ehrlich

1989

Chemosphere

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Unterschiedliche Aufnahme von Cadmium in Saccharomyces- BZW. Rhodotorula-Zellen

Cited by 6 publications

References 4 publications

Effect of pH, dextrose and yeast extract on cadmium toxicity on Saccharomyces cerevisiae PE-2

Effect of pH, dextrose and yeast extract on cadmium toxicity on Saccharomyces cerevisiae PE-2

Effects of nickel on the mineral composition of Fleischmanns yeast (Saccharomyces cerevisiae)

Evidence for a cadmium-binding-protein in Saccharomyces cerevisiae

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Unterschiedliche Aufnahme von Cadmium in Saccharomyces- BZW. Rhodotorula-Zellen

Cited by 6 publications

References 4 publications

Effect of pH, dextrose and yeast extract on cadmium toxicity on Saccharomyces cerevisiae PE-2

Effect of pH, dextrose and yeast extract on cadmium toxicity on Saccharomyces cerevisiae PE-2

Effects of nickel on the mineral composition of Fleischmanns yeast (Saccharomyces cerevisiae)

Evidence for a cadmium-binding-protein in Saccharomyces cerevisiae

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Effects of nickel on the mineral composition of Fleischmanns yeast (Saccharomyces cerevisiae)