Development of a chemically defined medium for the growth of Leuconostoc mesenteroides

Article Abstract:

A chemically defined medium for suitable growth and nutritional requirement fulfillment of Leuconostoc mesenteroides strains contains lactose, 12 amino acids, Mn2+, Mg2+, uracil, eight vitamins, adenine and Tween 80. The composition of the chemically defined medium and the aerobic conditions stimulate the growth of various strains. Potassium phosphate is a suitable buffer. The growth rate in the medium is 0.85 plus or minus 0.10 h(super -1) and all strains attain an A620max of 1.60 plus or minus 0.12. Cell densities up to 3.5 x 10(super 9) CFU/ml are attained in the medium.

Usage, Chemicals, Growth, Culture media (Biology), Culture media, Microorganisms

---

Influence of starvation on potential ammonia-oxidizing activity and amoA mRNA levels of Nitrosospira briensis

Article Abstract:

The starvation response of Nitrosospira briensis on the cellular and subcellular level is investigated. The results show that N. briensis cells remain in a state allowing fast recovery of ammonia-oxidizing activity after addition of NH4(super +1) to a starved culture and maintaining cells in this kind of active state could be the survival strategy of ammonia-oxidizing bacteria in nature under fluctuating NH4(super +1) availability.

Science & research, Messenger RNA

---

Effects of pH and trace minerals on long-term starvation of Leuconostoc mesenteroides

Article Abstract:

A pH of 5 is necessary for the long-term survival of Leuconostoc mesenteroides and sucrose is a better food source than glucose and fructose. These conditions allow the bacterium to survive under starvation conditions. These bacteria are used in oil reservoirs to block undesirable flow channels.

Similar abstracts:

• Abstracts: Development of a PCR protocol for sensitive detection of Cryptosporidium oocysts in water samples. Simplified method for recovery and PCR detection of Cryptosporidium DNA from bovine feces
• Abstracts: Development of a repair-enrichment broth for resuscitation of heat-injured Listeria monocytogenes and Listeria innocua
• Abstracts: Development of a gene transfer system for curing of plasmids in the marine fish pathogen Vibrio salmonicida. Development and use of field application vectors to express nonadaptive foreign genes in competitive environments
• Abstracts: Full-scale studies of factors related to coliform regrowth in drinking water. Multiregional evaluation of the SimPlate heterotrophic plate count method compared to the standard plate count agar pour plate method in water
• Abstracts: Spectrofluorometric assay for rapid detection of total and fecal coliforms from surface water. Observation of soft contact lens disinfection with fluorescent metabolic stains

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.