Numerical Taxonomy of Heterotrophic Bacteria Growing in Association with Continuous-Culture Chlorella sorokiniana
نویسندگان
چکیده
منابع مشابه
A heterotrophic synchronous culture of Chlorella.
Based on the observation that photoautotrophically grown Chlorella cells fail to complete cell division under anaerobic condition in the dark, we devised a heterotrophic synchronous culture (HSC) system for this green alga. The system consists, at a temperature of 21 degrees C, of a 32 +/- 1 h period under 3% CO2 in air and the successive 12 +/- 1 h period under 0.5% O2 +/- 99.5% N2 (the sum of...
متن کاملOzone Inhibition of Photosynthesis in Chlorella sorokiniana.
Exposure of Chlorella sorokiniana (07-11-05) to ozone inhibits photosynthesis. In this study, the effects of ozone on O(2) evolution and fluorescence yields are used to characterize this inhibition. At an ozone dose of about 3 micromoles delivered to 2 x 10(9) cells, the photosynthetic rate of the cells is inhibited 50%, as indicated by a decrease in bicarbonate-stimulated O(2) evolution (contr...
متن کاملOxygen-tolerant Strain of Chlorella sorokiniana.
[This corrects the article on p. 140 in vol. 17.].
متن کاملEnhancement of Lutein Production in Chlorella sorokiniana (Chorophyta) by Improvement of Culture Conditions and Random Mutagenesis
Chlorella sorokiniana has been selected for lutein production, after a screening of thirteen species of microalgae, since it showed both a high content in this carotenoid and a high growth rate. The effects of several nutritional and environmental factors on cell growth and lutein accumulation have been studied. Maximal specific growth rate and lutein content were attained at 690 μmol photons m...
متن کاملEffect of Selenate on Viability and Selenomethionine Accumulation of Chlorella sorokiniana Grown in Batch Culture
The aim of this work was to study the effect of Se(+VI) on viability, cell morphology, and selenomethionine accumulation of the green alga Chlorella sorokiniana grown in batch cultures. Culture exposed to sublethal Se concentrations of 40 mg · L(-1) (212 μM) decreased growth rates for about 25% compared to control. A selenate EC50 value of 45 mg · L(-1) (238.2 μM) was determined. Results showed...
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ژورنال
عنوان ژورنال: Applied Microbiology
سال: 1969
ISSN: 0003-6919
DOI: 10.1128/aem.18.6.1044-1049.1969