Original paper
Jahreszyklus der bakteriellen Aktivität in Oberflächenwässern
[Annual cycle of bacterial activity in surface water]
Tržilová, Božena; Miklošovičová, Ĺubica
Veröffentlichungen der Arbeitsgemeinschaft Donauforschung Band 6 Heft 4 (1981), p. 399 - 408
3 references
published: Oct 23, 1981
DOI: 10.1127/agdonauforschung/6/1981/399
ArtNo. ESP142005204007, Price: 19.00 €
Abstract
The metabolic activity of bacteria occurring in surface water has been studied during a two-year cycle. Simultaneously some physical, chemical and bacteriological parameters have been established. The metabolic activity was determined using the Koch-plate method, and the direct method developed by our team. An indirect relationship between the biochemical oxygen demand and the temperature of glucose and xylose substrates has been demonstrated, as well as a direct relationship in the case of serine and sodium pyruvate. A direct correlation with the amount of organic matter was evident only in the case of glucose and sodium pyruvate. It was further established that the activity of bacteria isolated directly from water is substantially lower than that observed when the plate method is used, and does not depend on the microflora present. The composition of the bacterial flora isolated by means of the two methods was also different as far as genera and species is concerned.
Keywords
metabolic activity • plate method • glucose substrate • serine pyruvate • sodium pyruvate • microflora