Cell-density-dependent killing of Myxococcus xanthus by autocide AMV
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چکیده
منابع مشابه
Cell density-dependent growth of Myxococcus xanthus on casein.
When Myxococcus xanthus FB was grown on 0.2% casein it exhibited a phenomenon we call cooperative growth. That is, above 104 cells per ml, both strains that were studied exhibited increasing growth rates as a function of increasing cell numbers. Between 104 and 107 cells per ml, the mean doubling times of strains YS and TNS decreased from 15.2 to 8 h and 26 to 8.5 h, respectively. The extracell...
متن کاملRole of autocide AMI in development of Myxococcus xanthus.
A new developmental mutant of Myxococcus xanthus has been isolated by screening TnV insertion mutants for AMI-dependent development in submerged culture. This mutant (ER304) aggregated and sporulated on agar surfaces but required at least 3.8 micrograms of autocide AMI per ml for development in submerged cultures. Spore rescue of ER304 was obtained with the saturated, monounsaturated, and diuns...
متن کاملAutocide AMI rescues development in dsg mutants of Myxococcus xanthus.
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 culture...
متن کاملLytic enzyme produced by Myxococcus xanthus.
Hart, Beth A. (Cornell University, Ithaca, N.Y.), and Stanley A. Zahler. Lytic enzyme produced by Myxococcus xanthus. J. Bacteriol. 92:1632-1637. 1966.-Strain FBa of Myxococcus xanthus releases into its culture medium an enzyme capable of lysing Micrococcus lysodeikticus cells and of releasing N-acetyl amino sugars from their cell walls. The lysin is stable at pH values near neutrality and at t...
متن کاملLipolytic enzymes in Myxococcus xanthus.
The genome of Myxococcus xanthus encodes lipolytic enzymes in three different families: patatin lipases, alpha/beta hydrolases, and GDSL lipases. One member of each family was characterized. The protein encoded by MXAN_3852 contains motifs characteristic of patatins. MXAN_5522 encodes a protein with the G-X-S-X-G motif characteristic of the lipase subfamily of alpha/beta hydrolases. MXAN_4569 e...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1987
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.169.2.844-848.1987