Clostridium perfringens as a Water Quality Indicator

Abstract

Clostridium perfringens and the more general group to which it belongs, “sulfite-reducing, spore forming anaerobes,” are considered with regard to their use as health effects, water quality indicators. The groups are examined with regard to their identification, their importance, the characteristics which impinge on their use as indicators, monitoring applications, available evaluation data, and enumeration methods. C. perfringens has specific and limited applications as a water quality indicator. It appears to be the fecal indicator of choice for measuring remote or intermittent pollution and in situations where resistance to disinfectants and environmental stress is at a premium.

Nucleotide and negatively charged lipid‐dependent vesicle aggregation caused by SecA

“…Since SecA causes vesicle aggregation, two lipid-binding domains must be present to cause inter-bilayer contact. Assuming that SecA is active as a dimer [16,17] at least two possible explanations for this effect can be provided. Either the two monomers of SecA in the dimer each possess one lipid-binding site which have different orientations with respect to the membrane such that two vesicles can be bound simultaneously by the dimer, or the two monomers in the dimer have the same orientation towards the membrane but possess two lipid-binding sites per monomer.…”

Analysing water quality and its impact towards sustainable basin management: modelling and experimental approaches in Lake Tana Basin, Ethiopia

“…Edberg et al (2000 and Odonkor and Ampofo (2013 reported that EC was the best indicator of the bacteriological quality of water in most examined habitats. CP seems to be the choice in published literature for measuring past or intermittent pollution and in circumstances where resistance to disinfectants and environmental stress was highest (Cabelli ,1977).…”