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.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1997
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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.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2005
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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.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2000
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