Fusion of protoplasts of Bacillus megaterium.

Abstract
Protoplasts of 2 doubly auxotrophic strains of B. megaterium were fused by nascent calcium phosphate or by polyethylene glycol treatment and then allowed to revert to bacillary form on selection media. The colonies formed were analyzed and were mixed populations of individual bacteria apparently containing parental, recombinant and segregating genotypes. The evidence suggested that segregation was transitory, lasting only for a few clonings and reisolations.