| Literature DB >> 15828686 |
C L Pemberton, N A Whitehead, M Sebaihia, K S Bell, L J Hyman, S J Harris, A J Matlin, N D Robson, P R J Birch, J P Carr, I K Toth, G P C Salmond.
Abstract
Seven new genes controlled by the quorum-sensing signal molecule N-(3-oxohexanoyl)-L-homoserine lactone (OHHL) have been identified in Erwinia carotovora subsp. carotovora. Using TnphoA as a mutagen, we enriched for mutants defective in proteins that could play a role in the interaction between E. carotovora subsp. carotovora and its plant hosts, and identified NipEcc and its counterpart in E. carotovora subsp. atroseptica. These are members of a growing family of proteins related to Nep1 from Fusarium oxysporum which can induce necrotic responses in a variety of dicotyledonous plants. NipEcc produced necrosis in tobacco, NipEca affected potato stem rot, and both affected virulence in potato tubers. In E. carotovora subsp. carotovora, nip was shown to be subject to weak repression by the LuxR family regulator, EccR, and may be regulated by the negative global regulator RsmA.Entities:
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Year: 2005 PMID： 15828686 DOI： 10.1094/MPMI-18-0343
Source DB: PubMed Journal: Mol Plant Microbe Interact ISSN： 0894-0282 Impact factor: 4.171