Percentage of gelatinolytic bacteria among heterotrophic bacteria as indicator of water quality
Jazyk angličtina Země Spojené státy americké Médium print
Typ dokumentu časopisecké články
PubMed
15114866
DOI
10.1007/bf02931646
Knihovny.cz E-zdroje
- MeSH
- Bacteria izolace a purifikace metabolismus MeSH
- gramnegativní aerobní tyčinky a koky izolace a purifikace metabolismus MeSH
- grampozitivní sporulující tyčinky izolace a purifikace metabolismus MeSH
- mikrobiologie vody * MeSH
- počet mikrobiálních kolonií MeSH
- sladká voda mikrobiologie MeSH
- želatina metabolismus MeSH
- znečištění vody analýza MeSH
- Publikační typ
- časopisecké články MeSH
- Geografické názvy
- Chorvatsko MeSH
- Názvy látek
- želatina MeSH
The relationship between the physiological group of gelatinolytic bacteria and the abundance of heterotrophic bacteria in freshwater ecosystems was described, based on analysis of 1082 different freshwater samples collected in Croatia. Percentages of gelatinolytic bacteria among the population of heterotrophic bacteria showed a significant negative correlation with the abundance of heterotrophic bacteria. The relation between the physiological group (gelatinolytic bacteria) and heterotrophic bacteria can be considered to be an indicator of the pollution degree of freshwaters. A high relative content of gelatinolytic bacteria (> 76%) always indicates the colony-forming units of heterotrophic bacteria < 1000/mL, which corresponds to the high water quality; gelatinolytic bacteria < 11% indicate polluted waters. Isolated strains of aerobically grown gelatinolytic bacteria were Gram-negative rod-shaped or Gram-positive endospore-forming rod-shaped cells.
