Zoogloea (biocenosis)
Zoogloea ( . AltGr ζῷον [Zoon], "subject, animal" and [gloia], "glue"; plural form Zoogloeen ) is an obsolete term for gelatinous flakes consisting of bacteria and a surrounding matrix from the hydrous deposited by the bacteria polymers. The term was coined by one of the pioneers of bacteriology, Ferdinand Julius Cohn , for whom the formation of zoogloea was an important taxonomic feature.
Today the term is only used for the species of the bacterial genus Zoogloea , which is characterized by the corresponding jelly formation.
Use by Annie Francé-Harrar in soil science
Deviating from the other uses in science, Annie Francé-Harrar described zoogloeen as communities of bacteria, "blue-green algae" and algae in the soil.
"Zoogloea: Small groups of different microorganisms connected by jointly excreted colloid blankets, which join together to break down organic or inorganic substances"
Other researchers have not followed this use of the term. Although the importance of aggregates of bacteria and clay minerals bound by extracellular polysaccharides deposited by the bacterial cells is recognized in soil microbiology to this day, the expression has not caught on.
Individual evidence
- ↑ cf. z. B. Charles Bradfield Morray: The Fundamentals of Bacteriology. Lea & Febiger, Philadelphia / New York 1921.
- ↑ Patrick R. Dugan, Daphne L. Stoner, Harvey M. Pickrum: The Genus Zoogloea. Chapter 14.3 in Martin Dworkin, Stanley Falkow (editors): The Prokaryotes: Vol. 7: Proteobacteria: Delta and Epsilon Subclasses. Deeply Rooting Bacteria. Springer, 2nd edition 2006. ISBN 9780387254975
- ^ Annie Francé-Harrar: Humus. Soil life and fertility. Bayerischer Landwirtschaftsverlag Bonn, Munich, Vienna 1957.
- ↑ cf. Nannipieri, P., Ascher, J., Ceccherini, MT, Landi, L., Pietramellara, G., Renella, G. (2003): Microbial diversity and soil functions. European Journal of Soil Science 54: 655-670. doi : 10.1046 / j.1351-0754.2003.0556.x