A locus encoding host range is linked to the common nodulation genes of Bradyrhizobium japonicum

A. J. Nieuwkoop, Z. Bánfalvi, N. Deshmane, D. Gerhold, M. G. Schell, K. M. Sirotkin, G. Stacey

Research output: Article

69 Citations (Scopus)

Abstract

By using cloned Rhizobium meliloti, Rhizobium leguminosarum, and Rhizobium sp. strain MPIK3030 nodulation (nod) genes as hybridization probes, homologous regions were detected in the slow-growing soybean symbiont Bradyrhizobium japonicum USDA 110. These regions were found to cluster within a 25-kilobase (kb) region. Specific nod probes from R. meliloti were used to identify nodA-, nodB-, nodC-, and nodD-like sequences clustered on two adjacent HindIII restriction fragments of 3.9 and 5.6 kb. A 785-base-pair sequence was identified between nodD and nodABC. This sequence contained an open reading frame of 420 base pairs and was oriented in the same direction as nodABC. A specific nod probe from R. leguminosarum was used to identify nodIJ-like sequences which were also contained within the 5.6-kb HindIII fragment. A nod probe from Rhizobium sp. strain MPIK3030 was used to identify hsn(host specificity)-like sequences essential for the nodulation of siratro (Macroptilium atropurpureum) on a 3.3-kb HindIII fragment downstream of nodIJ. A transposon Tn5 insertion within this region prevented the nodulation of siratro, but caused little or no delay in the nodulation of soybean (Glycine max).

Original languageEnglish
Pages (from-to)2631-2638
Number of pages8
JournalJournal of Bacteriology
Volume169
Issue number6
Publication statusPublished - 1987

Fingerprint

Bradyrhizobium
Host Specificity
Soybeans
Rhizobium leguminosarum
Sinorhizobium meliloti
Rhizobium
Base Pairing
Genes
United States Department of Agriculture
Open Reading Frames

ASJC Scopus subject areas

  • Applied Microbiology and Biotechnology
  • Immunology

Cite this

Nieuwkoop, A. J., Bánfalvi, Z., Deshmane, N., Gerhold, D., Schell, M. G., Sirotkin, K. M., & Stacey, G. (1987). A locus encoding host range is linked to the common nodulation genes of Bradyrhizobium japonicum. Journal of Bacteriology, 169(6), 2631-2638.

A locus encoding host range is linked to the common nodulation genes of Bradyrhizobium japonicum. / Nieuwkoop, A. J.; Bánfalvi, Z.; Deshmane, N.; Gerhold, D.; Schell, M. G.; Sirotkin, K. M.; Stacey, G.

In: Journal of Bacteriology, Vol. 169, No. 6, 1987, p. 2631-2638.

Research output: Article

Nieuwkoop, AJ, Bánfalvi, Z, Deshmane, N, Gerhold, D, Schell, MG, Sirotkin, KM & Stacey, G 1987, 'A locus encoding host range is linked to the common nodulation genes of Bradyrhizobium japonicum', Journal of Bacteriology, vol. 169, no. 6, pp. 2631-2638.
Nieuwkoop AJ, Bánfalvi Z, Deshmane N, Gerhold D, Schell MG, Sirotkin KM et al. A locus encoding host range is linked to the common nodulation genes of Bradyrhizobium japonicum. Journal of Bacteriology. 1987;169(6):2631-2638.
Nieuwkoop, A. J. ; Bánfalvi, Z. ; Deshmane, N. ; Gerhold, D. ; Schell, M. G. ; Sirotkin, K. M. ; Stacey, G. / A locus encoding host range is linked to the common nodulation genes of Bradyrhizobium japonicum. In: Journal of Bacteriology. 1987 ; Vol. 169, No. 6. pp. 2631-2638.
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