In:
E3S Web of Conferences, EDP Sciences, Vol. 265 ( 2021), p. 04003-
Kurzfassung:
Here we describe the study of the sorption of high-molecular components of dissolved organic matter (DOM) of natural waters - humic acids - by eight bacterial strains isolated from freshwater. Isotherms of DOM sorption by cells are described by the Langmuir equation. Gram-positive bacteria adsorb more DOM than gram-negative bacteria, with high molecular weight DOM fractions binding in a relatively selective manner. A high positive correlation (r = 0.91) was found between the decrease in the molecular weight of DOM during the sorption of these compounds by cells and the maximum sorption value. The formation of a polysaccharide capsule increases the binding of DOM by the cells of Pseudomonas sp . to the level of gram-positive bacteria.
Materialart:
Online-Ressource
ISSN:
2267-1242
DOI:
10.1051/e3sconf/202126504003
Sprache:
Englisch
Verlag:
EDP Sciences
Publikationsdatum:
2021
ZDB Id:
2755680-3