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. 1994 May;176(10):3089-91.
doi: 10.1128/jb.176.10.3089-3091.1994.

A single promoter sequence recognized by a newly identified alternate sigma factor directs expression of pathogenicity and host range determinants in Pseudomonas syringae

Y Xiao  1 , S W Hutcheson
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A single promoter sequence recognized by a newly identified alternate sigma factor directs expression of pathogenicity and host range determinants in Pseudomonas syringae

Y Xiao et al. J Bacteriol. 1994 May.

Erratum in

  • J Bacteriol 1994 Oct;176(19):6158

Abstract

A conserved sequence motif associated with transcription of avr genes was identified in the promoter regions of six Pseudomonas syringae pv. syringae Pss61 hrp operons. A 34-bp fragment carrying this motif was cloned from the HrpZ promoter region and was shown to confer HrpL-dependent promoter activity. Expression of pathogenicity and host range determinants in P. syringae strains is thus directed by the apparent alternate sigma factor HrpL.

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