Determination of Reduced and Total Glutathione Content in Extremophilic Microalga Galdieria phlegrea.
An improved spectrophotometric method is described to estimate the content of reduced (GSH) and oxidized (GSSG) forms of glutathione in the extremophilic microalga Galdieria phlegrea.
Sulfur Deprivation Results in Oxidative Perturbation in Chlorella sorokiniana (211/8k).
- Giovanna Salbitani, V. Vona, Claudia Bottone, M. Petriccione, S. Carfagna
- BiologyPlant and Cell Physiology
- 1 May 2015
It is concluded that S deprivation triggers redox changes and induces antioxidant enzyme activities in Chlorella cells and an increase in the activity of SOD and APX enzymes indicate that oxidative perturbation occurs during S deprivation.
Impact of Sulfur Starvation in Autotrophic and Heterotrophic Cultures of the Extremophilic Microalga Galdieria phlegrea (Cyanidiophyceae).
The activity of O-acetylserine(thiol)lyase (OASTL), the enzyme synthesizing cysteine, was enhanced under S deprivation in a time-dependent manner in autotrophic but not in heterotrophic cells, supported by analysis of the transcript abundance of the OASTL gene.
Galdieria sulphuraria as a Possible Source of Food Colorant
Antioxidant and anti-proliferative properties of extracts from heterotrophic cultures of Galdieria sulphuraria
It is suggested that G. sulphuraria from heterotrophic culture, for its therapeutic potential, could be considered a good candidate for further studies with the aim to isolate bioactive anti-cancer molecules.
Cross-Effects of Nitrogen and Sulphur Starvation in Chlorella sorokiniana 211/8K
- S. Carfagna, Giovanna Salbitani, Claudia Bottone, A. Marco, V. Vona
- Environmental Science
- 26 March 2015
The hypothesis that in Chlorella sorokiniana cells a reciprocal influence of N, S and C assimilation occurs is supported, as it is shown that in microalgae metabolism in response to N- or S-deprivation the content of C and N is reduced, but leaves intact their ratios.