Myxospore Formation in Myxococcus xanthus: Chemical Changes in the Cell Wall During Cellular Morphogenesis1
AUTOR(ES)
Johnson, Roosevelt Y.
RESUMO
Vegetative cells of Myxococcus xanthus (strain FB) were induced to form myxospores by the glycerol induction technique. Several structural changes took place in the peptidoglycan during myxospore formation. The percent of the peptidoglycan comprised of monomer (disaccharide peptide) decreased from about 20% to approximately 7%. The proportion of the total diaminopimelic acid possessing a free amino group decreased about 11%. A carbohydrate containing only glucose was found to be bound, possibly covalently, to the vegetative cell and myxospore peptidoglycan. The amount of carbohydrate relative to peptidoglycan decreased by two-thirds during myxospore formation. None of the above changes in the peptidoglycan were observed in a mutant (strain GNI) of M. xanthus which was unable to convert to myxospores when incubated in the glycerol induction medium, or in the parental wild type (FB) when it was incubated in induction medium lacking the myxospore inducer, glycerol.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=251495Documentos Relacionados
- Peptidoglycan of Myxococcus xanthus: Structure and Relation to Morphogenesis1
- A Bacteriophage for Myxococcus xanthus: Isolation, Characterization and Relation of Infectivity to Host Morphogenesis1
- Myxospore coat synthesis in Myxococcus xanthus: enzymes associated with uridine 5'-diphosphate-N-acetylgalactosamine formation during myxospore development.
- Coats from Myxococcus xanthus: characterization and synthesis during myxospore differentiation.
- MICROCYST OF MYXOCOCCUS XANTHUS: Chemical Composition of the Wall