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. 1989 Mar;171(3):1513–1518. doi: 10.1128/jb.171.3.1513-1518.1989

Autocide AMI rescues development in dsg mutants of Myxococcus xanthus.

A Rosenbluh 1, E Rosenberg 1
PMCID: PMC209774  PMID: 2493446

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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Selected References

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  1. Cesarone C. F., Bolognesi C., Santi L. Improved microfluorometric DNA determination in biological material using 33258 Hoechst. Anal Biochem. 1979 Nov 15;100(1):188–197. doi: 10.1016/0003-2697(79)90131-3. [DOI] [PubMed] [Google Scholar]
  2. Gelvan I., Varon M., Rosenberg E. Cell-density-dependent killing of Myxococcus xanthus by autocide AMV. J Bacteriol. 1987 Feb;169(2):844–848. doi: 10.1128/jb.169.2.844-848.1987. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Gill R. E., Cull M. G. Control of developmental gene expression by cell-to-cell interactions in Myxococcus xanthus. J Bacteriol. 1986 Oct;168(1):341–347. doi: 10.1128/jb.168.1.341-347.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Hagen D. C., Bretscher A. P., Kaiser D. Synergism between morphogenetic mutants of Myxococcus xanthus. Dev Biol. 1978 Jun;64(2):284–296. doi: 10.1016/0012-1606(78)90079-9. [DOI] [PubMed] [Google Scholar]
  5. Janssen G. R., Dworkin M. Cell-cell interactions in developmental lysis of Myxococcus xanthus. Dev Biol. 1985 Nov;112(1):194–202. doi: 10.1016/0012-1606(85)90133-2. [DOI] [PubMed] [Google Scholar]
  6. Kaiser D. Social gliding is correlated with the presence of pili in Myxococcus xanthus. Proc Natl Acad Sci U S A. 1979 Nov;76(11):5952–5956. doi: 10.1073/pnas.76.11.5952. [DOI] [PMC free article] [PubMed] [Google Scholar]
  7. Kroos L., Kaiser D. Expression of many developmentally regulated genes in Myxococcus depends on a sequence of cell interactions. Genes Dev. 1987 Oct;1(8):840–854. doi: 10.1101/gad.1.8.840. [DOI] [PubMed] [Google Scholar]
  8. Kuner J. M., Kaiser D. Fruiting body morphogenesis in submerged cultures of Myxococcus xanthus. J Bacteriol. 1982 Jul;151(1):458–461. doi: 10.1128/jb.151.1.458-461.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  9. Kuspa A., Kroos L., Kaiser D. Intercellular signaling is required for developmental gene expression in Myxococcus xanthus. Dev Biol. 1986 Sep;117(1):267–276. doi: 10.1016/0012-1606(86)90369-6. [DOI] [PubMed] [Google Scholar]
  10. LaRossa R., Kuner J., Hagen D., Manoil C., Kaiser D. Developmental cell interactions of Myxococcus xanthus: analysis of mutants. J Bacteriol. 1983 Mar;153(3):1394–1404. doi: 10.1128/jb.153.3.1394-1404.1983. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Labarca C., Paigen K. A simple, rapid, and sensitive DNA assay procedure. Anal Biochem. 1980 Mar 1;102(2):344–352. doi: 10.1016/0003-2697(80)90165-7. [DOI] [PubMed] [Google Scholar]
  12. O'Connor K. A., Zusman D. R. Reexamination of the role of autolysis in the development of Myxococcus xanthus. J Bacteriol. 1988 Sep;170(9):4103–4112. doi: 10.1128/jb.170.9.4103-4112.1988. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Shimkets L. J., Gill R. E., Kaiser D. Developmental cell interactions in Myxococcus xanthus and the spoC locus. Proc Natl Acad Sci U S A. 1983 Mar;80(5):1406–1410. doi: 10.1073/pnas.80.5.1406. [DOI] [PMC free article] [PubMed] [Google Scholar]
  14. Shimkets L. J., Kaiser D. Murein components rescue developmental sporulation of Myxococcus xanthus. J Bacteriol. 1982 Oct;152(1):462–470. doi: 10.1128/jb.152.1.462-470.1982. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Varon M., Cohen S., Rosenberg E. Autocides produced by Myxococcus xanthus. J Bacteriol. 1984 Dec;160(3):1146–1150. doi: 10.1128/jb.160.3.1146-1150.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  16. Varon M., Tietz A., Rosenberg E. Myxococcus xanthus autocide AMI. J Bacteriol. 1986 Jul;167(1):356–361. doi: 10.1128/jb.167.1.356-361.1986. [DOI] [PMC free article] [PubMed] [Google Scholar]
  17. Weisblum B., Haenssler E. Fluorometric properties of the bibenzimidazole derivative Hoechst 33258, a fluorescent probe specific for AT concentration in chromosomal DNA. Chromosoma. 1974;46(3):255–260. doi: 10.1007/BF00284881. [DOI] [PubMed] [Google Scholar]
  18. Wireman J. W., Dworkin M. Developmentally induced autolysis during fruiting body formation by Myxococcus xanthus. J Bacteriol. 1977 Feb;129(2):798–802. doi: 10.1128/jb.129.2.798-802.1977. [DOI] [PMC free article] [PubMed] [Google Scholar]
  19. Wireman J. W., Dworkin M. Morphogenesis and developmental interactions in myxobacteria. Science. 1975 Aug 15;189(4202):516–523. doi: 10.1126/science.806967. [DOI] [PubMed] [Google Scholar]
  20. Zusman D. R., Krotoski D. M., Cumsky M. Chromosome replication in Myxococcus xanthus. J Bacteriol. 1978 Jan;133(1):122–129. doi: 10.1128/jb.133.1.122-129.1978. [DOI] [PMC free article] [PubMed] [Google Scholar]

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