HrpW of Erwinia amylovora, a new Hrp‐secreted protein

FEBS Letters

Barny, M.-A²  Gaudriault, S²  Brisset, M.-N¹ 

[1] Station de Pathologie végétale et Phytobactériologie INRA, 42 rue Georges Morel, P.O. Box 57, 49071 Beaucouzé Cedex, France;Laboratoire de Pathologie végétale INA-PG/INRA, 16 rue Claude Bernard, 75231 Paris Cedex 05, France

关键词: Type III secretion;    HrpW;    Harpin;    Pectate lyase;    Erwinia amylovora;   

DOI  :  10.1016/S0014-5793(98)00534-1

学科分类：生物化学/生物物理

来源: John Wiley & Sons Ltd.

【 摘 要 】

Erwinia amylovora strain CFBP1430 secretes a protein called HrpW in a Hrp-dependent manner. HrpW was detected in culture supernatant of the wild-type strain grown on solid inducing hrp medium. This protein shares structural similarities with elicitors of the hypersensitive response such as HrpN of Erwinia amylovora and PopA of Ralstonia solanacearum. Furthermore, the C-terminal region of HrpW is homologous to class III pectate lyases. An hrpW mutant is as aggressive as the wild-type strain on pear and apple seedlings. It elicits the hypersensitive response on tobacco at a lower concentration than the wild-type strain.

【 授权许可】

Unknown