Autocide AMI rescues development in dsg mutants of Myxococcus xanthus
- PMID:2493446
- PMCID: PMC209774
- DOI: 10.1128/jb.171.3.1513-1518.1989
Autocide AMI rescues development in dsg mutants of Myxococcus xanthus
Abstract
Low concentrations of autocide AMI rescued aggregation and sporulation in the dsg mutant class of Myxococcus xanthus but were incapable of rescuing asg, bsg, or csg mutants. AMI-induced spores of dsg mutants were resistant to heat and sonication and germinated when plated on nutrient-rich agar. AMI accelerated aggregation and sporulation and increased the final spore number in submerged cultures of a wild-type strain of M. xanthus. Development of M. xanthus was accompanied by release of a fluorescent material (emission maximum, 438 nm) into the supernatant fluid. The release of this material began early and continued throughout development. All Spo- mutant strains tested released significantly reduced levels of this material. These levels were increased in the presence of AMI in all Spo- mutant classes, most dramatically in the dsg mutants.
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