Abstract
During the growth of Bdellovibrio bacteriovorus on Pseudomonas putida or Escherichia coli in either 10−3m tris(hydroxymethyl)aminomethane or in dilute nutrient broth, the host deoxyribonucleic acid (DNA) was rapidly degraded, and by 30 to 60 min after the initiation of the bdellovibrio development cycle essentially all host DNA became nonbandable in CsCl gradients. At this stage the host DNA degradation products were nondiffusable, and there was no appreciable pool of low-molecular-weight (cold acid soluble) DNA fragments in the cells or in the suspending medium. Bdellovibrio DNA synthesis occurred only after degradation of host DNA to a nonbandable form was complete. The synthesis occurred in a continuous fashion with P. putida as the host and in two separate periods with E. coli as host. By using E. coli containing a 3H-thymidine label, it was shown that 73%, on the average, of the thymine residues of host DNA were incorporated into bdellovibrio DNA when E. coli was the only source of nutrient. In the presence of dilute nutrient broth, the host cells still served as the major source of precursors for bdellovibrio DNA synthesis, with only 20% of the precursors arising from the exogenous nutrients. The data indicate an efficient and controlled utilization of host DNA by the bdellovibrio. The host DNA is apparently degraded early in the developmental cycle to oligonucleotides of intermediate molecular weight from which the biosynthetic monomers are generated only as they become needed for bdellovibrio DNA synthesis.
Full text
PDFSelected References
These references are in PubMed. This may not be the complete list of references from this article.
- Altenburg B. C., Suit J. C., Brinkley B. R. Ultrastructure of deoxyribonucleic acid-membrane associations in Escherichia coli. J Bacteriol. 1970 Oct;104(1):549–555. doi: 10.1128/jb.104.1.549-555.1970. [DOI] [PMC free article] [PubMed] [Google Scholar]
- CRAWFORD L. V. Nucleic acid metabolism in Escherichia coli infected with phage T5. Virology. 1959 Apr;7(4):359–374. doi: 10.1016/0042-6822(59)90065-0. [DOI] [PubMed] [Google Scholar]
- Fielding P., Fox C. F. Evidence for stable attachment of DNA to membrane at the replication origin of Escherichia coli. Biochem Biophys Res Commun. 1970 Oct 9;41(1):157–162. doi: 10.1016/0006-291x(70)90482-1. [DOI] [PubMed] [Google Scholar]
- IYER V. N., SZYBALSKI W. A MOLECULAR MECHANISM OF MITOMYCIN ACTION: LINKING OF COMPLEMENTARY DNA STRANDS. Proc Natl Acad Sci U S A. 1963 Aug;50:355–362. doi: 10.1073/pnas.50.2.355. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Kutter E. M., Wiberg J. S. Degradation of cytosin-containing bacterial and bacteriophage DNA after infection of Escherichia coli B with bacteriophage T4D wild type and with mutants defective in genes 46, 47 and 56. J Mol Biol. 1968 Dec;38(3):395–411. doi: 10.1016/0022-2836(68)90394-x. [DOI] [PubMed] [Google Scholar]
- LEHMAN I. R., ROUSSOS G. G., PRATT E. A. The deoxyribo-nucleases of Escherichia coli. III. Studies on the nature of the inhibition of endonuclease by ribonucleic acid. J Biol Chem. 1962 Mar;237:829–833. [PubMed] [Google Scholar]
- Lark C. Regulation of deoxyribonucleic acid synthesis in Escherichia coli: dependence on growth rates. Biochim Biophys Acta. 1966 Jun 22;119(3):517–525. doi: 10.1016/0005-2787(66)90128-6. [DOI] [PubMed] [Google Scholar]
- Mandel M. Deoxyribonucleic acid base composition in the genus Pseudomonas. J Gen Microbiol. 1966 May;43(2):273–292. doi: 10.1099/00221287-43-2-273. [DOI] [PubMed] [Google Scholar]
- Nomura M. Colicins and related bacteriocins. Annu Rev Microbiol. 1967;21:257–284. doi: 10.1146/annurev.mi.21.100167.001353. [DOI] [PubMed] [Google Scholar]
- PATTERSON M. S., GREENE R. C. MEASUREMENT OF LOW ENERGY BETA-EMITTERS IN AQUEOUS SOLUTION BY LIQUID SCINTILLATION COUNTING OF EMULSIONS. Anal Chem. 1965 Jun;37:854–857. doi: 10.1021/ac60226a017. [DOI] [PubMed] [Google Scholar]
- PFEFFERKORN E., AMOS H. Deoxyribonucleic acid breakdown and resynthesis in T5 bacteriophage infection. Virology. 1958 Aug;6(1):299–301. doi: 10.1016/0042-6822(58)90083-7. [DOI] [PubMed] [Google Scholar]
- Rittenberg S. C. Nonidentity of Bdellovibrio bacteriovorus strains 109D and 109J. J Bacteriol. 1972 Jan;109(1):432–433. doi: 10.1128/jb.109.1.432-433.1972. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Rittenberg S. C., Shilo M. Early host damage in the infection cycle of Bdellovibrio bacteriovorus. J Bacteriol. 1970 Apr;102(1):149–160. doi: 10.1128/jb.102.1.149-160.1970. [DOI] [PMC free article] [PubMed] [Google Scholar]
- SCHILDKRAUT C. L., MARMUR J., DOTY P. Determination of the base composition of deoxyribonucleic acid from its buoyant density in CsCl. J Mol Biol. 1962 Jun;4:430–443. doi: 10.1016/s0022-2836(62)80100-4. [DOI] [PubMed] [Google Scholar]
- Seidler R. J., Starr M. P. Factors affecting the intracellular parasitic growth of Bdellovibrio bacteriovorus developing within Escherichia coli. J Bacteriol. 1969 Feb;97(2):912–923. doi: 10.1128/jb.97.2.912-923.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Shilo M., Bruff B. Lysis of Gram-negative bacteria by host-independent ectoparasitic Bdellovibrio bacteriovorus isolates. J Gen Microbiol. 1965 Sep;40(3):317–328. doi: 10.1099/00221287-40-3-317. [DOI] [PubMed] [Google Scholar]
- Shilo M. Morphological and physiological aspects of the interaction of Bdellovibrio with host bacteria. Curr Top Microbiol Immunol. 1969;50:174–204. doi: 10.1007/978-3-642-46169-9_6. [DOI] [PubMed] [Google Scholar]
- Stanier R. Y., Palleroni N. J., Doudoroff M. The aerobic pseudomonads: a taxonomic study. J Gen Microbiol. 1966 May;43(2):159–271. doi: 10.1099/00221287-43-2-159. [DOI] [PubMed] [Google Scholar]
- Starr M. P., Seidler R. J. The Bdellovibros. Annu Rev Microbiol. 1971;25:649–678. doi: 10.1146/annurev.mi.25.100171.003245. [DOI] [PubMed] [Google Scholar]
- Tremblay G. Y., Daniels M. J., Schaechter M. Isolation of a cell membrane-DNA-nascent RNA complex from bacteria. J Mol Biol. 1969 Feb 28;40(1):65–76. doi: 10.1016/0022-2836(69)90296-4. [DOI] [PubMed] [Google Scholar]
- Varon M., Drucker I., Shilo M. Early effects of Bdellovibrio infection on the syntheses of protein and RNA of host bacteria. Biochem Biophys Res Commun. 1969 Oct 22;37(3):518–525. doi: 10.1016/0006-291x(69)90946-2. [DOI] [PubMed] [Google Scholar]
- Varon M., Shil M. Interacton of Bdellovibrio bacteriovorus and host bacteria. I. Kinetic studies of attachment and invasion of Escherichia coli B by Bdellovibrio bacteriovorus. J Bacteriol. 1968 Mar;95(3):744–753. doi: 10.1128/jb.95.3.744-753.1968. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Varon M., Shilo M. Interaction of Bdellovibrio bacteriovorus and host bacteria. II. Intracellular growth and development of Bdellovibrio bacteriovorus in liquid cultures. J Bacteriol. 1969 Jul;99(1):136–141. doi: 10.1128/jb.99.1.136-141.1969. [DOI] [PMC free article] [PubMed] [Google Scholar]
- Warren R. J., Bose S. K. Bacteriophage-induced inhibition of host functions. I. Degradation of Escherichia coli deoxyribonucleic acid after T4 infection. J Virol. 1968 Apr;2(4):327–334. doi: 10.1128/jvi.2.4.327-334.1968. [DOI] [PMC free article] [PubMed] [Google Scholar]