Crossfeed

It is now recognized that crossfeeding does not occur with derivatives of the mouse L-cell line (such as A9) , nor with certain HeLa clones. However, crossfeeding does occur with other heteroploid mouse lines (3T3 and derivatives), hamster BHK-21 cells and derivatives, and diploid human fibroblasts.

How can the results of crossfeeding trials be used to sequence mutant strains of the bacteria Serratia marsescens in the biosynthetic pathway for the production of prodigiosis?

The emergence of crossfeeding interactions has been observed in long- term evolution experiments on E. coli in chemostats with glucose as the limiting resource