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Physiological and biochemical contributions to the taxonomy of the genusChlorella

✍ Scribed by M. Vinayakumar; E. Kessler

Publisher
Springer
Year
1975
Tongue
English
Weight
502 KB
Volume
103
Category
Article
ISSN
0302-8933

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✦ Synopsis

The products of glucose fermentation were studied in 87 strains of the genus Chlorella. Lactic acid, acetic acid, formic acid, glycerol, ethanol, H2 and CO2 were identified. The lactic acid was shown to be D(minus)lactic acid. The pattern of fermentation produces is species-specific and can therefore be used as a taxonomic character. Lactic acid was found in C. fusca (varieties vacuolata, fusca, and rubescens), C. zofingiensis, C. vulgaris (var. vulgaris and f.tertia), and C. protothecoides. Formic acid and H2 appeared in those species which contain hydrogenase. Rather large amounts of glycerol were produced only by the most salt-tolerant species C. luteoviridis, C. saccharophila, and C. protothecoides.

πŸ“œ SIMILAR VOLUMES

Physiological and biochemical contributi
Physiological and biochemical contributions to the taxonomy of the genusChlorella
✍ Wolfgang Kerfin; Erich Kessler πŸ“‚ Article πŸ“… 1978 πŸ› Springer 🌐 English βš– 617 KB

1. DNA homology was studied in 12 Chlorella species. The DNA of 88 strains was hybridized with 3H-labelled DNA from C.fusca var. vacuolata 2tl-8b and from C. vulgaris 2tl-8m. The results indicate that the genus Chlorella is a heterogenous taxon which consists of several groups of species. 2. The "C.

Physiological and biochemical contributi
Physiological and biochemical contributions to the taxonomy of the genusPrototheca
✍ Wolfgang Kerfin; Erich Kessler πŸ“‚ Article πŸ“… 1978 πŸ› Springer 🌐 English βš– 204 KB

16 strains of the genus Prototheca do not produce extracellular amylolytic enzymes. The base composition of their DNA shows rather continuous values from 62 ~ to 78 ~o GC (guanine + cytosine). Their assignment to four species and their possible relationship with Chlorella protothecoides are discusse