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. 1984 Oct;160(1):327–332. doi: 10.1128/jb.160.1.327-332.1984

Host range encoded by the Agrobacterium tumefaciens tumor-inducing plasmid pTiAg63 can be expanded by modification of its T-DNA oncogene complement.

W G Buchholz, M F Thomashow
PMCID: PMC214720  PMID: 6090422

Abstract

Agrobacterium tumefaciens harboring pTiA6 incite unorganized tumors on Nicotiana rustica, sunflowers, carrots, and tomatoes, whereas isogenic strains of agrobacteria harboring pTiAg63 form "rooty" tumors on N. rustica and are essentially avirulent on sunflowers, carrots, and tomatoes. In this report we show that the different host range characteristics of these two plasmids were due, in part, to differences in the T-DNA oncogene complements of the plasmids. Specifically, we constructed derivatives of pTiAg63 that contained pTiA6 oncogenes 4, 6a, and 6b inserted into the TB-DNA region and found that agrobacteria harboring these plasmids could incite unorganized tumors on N. rustica, tomatoes, carrots, and the inbred sunflower line HA202R. Undefined host factors, however, also appeared to be involved in determining A. tumefaciens host range since three inbred sunflower lines, HA303B, HA89B, and HA290B, were susceptible to tumor formation by agrobacteria harboring pTiA6 but not by strains harboring pTiAg63 or the modified pTiAg63 plasmids.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. Akiyoshi D. E., Morris R. O., Hinz R., Mischke B. S., Kosuge T., Garfinkel D. J., Gordon M. P., Nester E. W. Cytokinin/auxin balance in crown gall tumors is regulated by specific loci in the T-DNA. Proc Natl Acad Sci U S A. 1983 Jan;80(2):407–411. doi: 10.1073/pnas.80.2.407. [DOI] [PMC free article] [PubMed] [Google Scholar]
  2. Birnboim H. C., Doly J. A rapid alkaline extraction procedure for screening recombinant plasmid DNA. Nucleic Acids Res. 1979 Nov 24;7(6):1513–1523. doi: 10.1093/nar/7.6.1513. [DOI] [PMC free article] [PubMed] [Google Scholar]
  3. Buchholz W. G., Thomashow M. F. Comparison of T-DNA oncogene complements of Agrobacterium tumefaciens tumor-inducing plasmids with limited and wide host ranges. J Bacteriol. 1984 Oct;160(1):319–326. doi: 10.1128/jb.160.1.319-326.1984. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Currier T. C., Nester E. W. Isolation of covalently closed circular DNA of high molecular weight from bacteria. Anal Biochem. 1976 Dec;76(2):431–441. doi: 10.1016/0003-2697(76)90338-9. [DOI] [PubMed] [Google Scholar]
  5. Garfinkel D. J., Nester E. W. Agrobacterium tumefaciens mutants affected in crown gall tumorigenesis and octopine catabolism. J Bacteriol. 1980 Nov;144(2):732–743. doi: 10.1128/jb.144.2.732-743.1980. [DOI] [PMC free article] [PubMed] [Google Scholar]
  6. Garfinkel D. J., Simpson R. B., Ream L. W., White F. F., Gordon M. P., Nester E. W. Genetic analysis of crown gall: fine structure map of the T-DNA by site-directed mutagenesis. Cell. 1981 Nov;27(1 Pt 2):143–153. doi: 10.1016/0092-8674(81)90368-8. [DOI] [PubMed] [Google Scholar]
  7. Holsters M., de Waele D., Depicker A., Messens E., van Montagu M., Schell J. Transfection and transformation of Agrobacterium tumefaciens. Mol Gen Genet. 1978 Jul 11;163(2):181–187. doi: 10.1007/BF00267408. [DOI] [PubMed] [Google Scholar]
  8. Jorgensen R. A., Rothstein S. J., Reznikoff W. S. A restriction enzyme cleavage map of Tn5 and location of a region encoding neomycin resistance. Mol Gen Genet. 1979;177(1):65–72. doi: 10.1007/BF00267254. [DOI] [PubMed] [Google Scholar]
  9. Kahn M., Hanawalt P. Size distribution of DNA replicative intermediates in bacteriophage P4 and in Escherichia coli. J Mol Biol. 1979 Mar 15;128(4):501–525. doi: 10.1016/0022-2836(79)90290-0. [DOI] [PubMed] [Google Scholar]
  10. Kahn M., Kolter R., Thomas C., Figurski D., Meyer R., Remaut E., Helinski D. R. Plasmid cloning vehicles derived from plasmids ColE1, F, R6K, and RK2. Methods Enzymol. 1979;68:268–280. doi: 10.1016/0076-6879(79)68019-9. [DOI] [PubMed] [Google Scholar]
  11. Kahn M., Ow D., Sauer B., Rabinowitz A., Calendar R. Genetic analysis of bacteriophage P4 using P4-plasmid ColE1 hybrids. Mol Gen Genet. 1980 Feb;177(3):399–412. doi: 10.1007/BF00271478. [DOI] [PubMed] [Google Scholar]
  12. Leemans J., Deblaere R., Willmitzer L., De Greve H., Hernalsteens J. P., Van Montagu M., Schell J. Genetic Identification of functions of TL-DNA transcripts in octopine crown galls. EMBO J. 1982;1(1):147–152. doi: 10.1002/j.1460-2075.1982.tb01138.x. [DOI] [PMC free article] [PubMed] [Google Scholar]
  13. Mandel M., Higa A. Calcium-dependent bacteriophage DNA infection. J Mol Biol. 1970 Oct 14;53(1):159–162. doi: 10.1016/0022-2836(70)90051-3. [DOI] [PubMed] [Google Scholar]
  14. Ooms G., Hooykaas P. J., Moolenaar G., Schilperoort R. A. Grown gall plant tumors of abnormal morphology, induced by Agrobacterium tumefaciens carrying mutated octopine Ti plasmids; analysis of T-DNA functions. Gene. 1981 Jun-Jul;14(1-2):33–50. doi: 10.1016/0378-1119(81)90146-3. [DOI] [PubMed] [Google Scholar]
  15. Panagopoulos C. G., Psallidas P. G. Characteristics of Greek Isolates of Agrobacterium tumefaciens (E. F. Smith & Townsend) Conn. J Appl Bacteriol. 1973 Jun;36(2):233–240. doi: 10.1111/j.1365-2672.1973.tb04096.x. [DOI] [PubMed] [Google Scholar]
  16. Ruvkun G. B., Ausubel F. M. A general method for site-directed mutagenesis in prokaryotes. Nature. 1981 Jan 1;289(5793):85–88. doi: 10.1038/289085a0. [DOI] [PubMed] [Google Scholar]
  17. Sciaky D., Montoya A. L., Chilton M. D. Fingerprints of Agrobacterium Ti plasmids. Plasmid. 1978 Feb;1(2):238–253. doi: 10.1016/0147-619x(78)90042-2. [DOI] [PubMed] [Google Scholar]
  18. Willmitzer L., Simons G., Schell J. The TL-DNA in octopine crown-gall tumours codes for seven well-defined polyadenylated transcripts. EMBO J. 1982;1(1):139–146. doi: 10.1002/j.1460-2075.1982.tb01137.x. [DOI] [PMC free article] [PubMed] [Google Scholar]

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