ISSN:
0006-3592
Keywords:
Chemistry
;
Biochemistry and Biotechnology
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Biology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Several modes of interaction are demonstrated and modeled in the Proteus vulgaris-Saccharomyces cerevisiae system, in particular, commensalism (citrate present. glucose limiting, the nicotinic acid required by the bacterium supplied by the yeast), and commensalism and competition [citrate absent, both organisms compete for the same limiting carbon source (glucose) and the yeast supplies the nicotinic acid for the bacterium]. By varying the medium component concentrations, competition (citrate absent, glucose limiting, nicotinic acid not limiting), mutualism (citrate excess, glucose limiting, nicotinic acid absent), and neutralism (citrate limiting, glucose limiting, and nicotinic acid excess) could also be created. Kinetic models for commensalism and commensalism plus competition were developed to describe cell growth, substrate utilization, and nicotinic acid production. Good agreement with experiment was obtained for the commensalism case.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/bit.260230720
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