Moss-Erwinia pathosystem reveals possible similarities in pathogenesis and pathogen defense in vascular and nonvascular plants

被引：31

作者：

Andersson R.A. ^{[1
]}

Akita M. ^{[1
,3
]}

Pirhonen M. ^{[1
,2
]}

Gammelgård E. ^{[1
]}

Valkonen J.P.T. ^{[1
,2
]}

机构：

[1] Department of Plant Biology, Swed. Univ. of Agricultural Sciences, Genetics Centre, Uppsala

[2] Department of Applied Biology, University of Helsinki, FIN-00014 Helsinki

[3] Dept. of Biotechnological Science, Kinki University, Wakayama

来源：

Journal of General Plant Pathology | 2005年 / 71卷 / 1期

关键词：

Disease resistance; Erwinia carotovora; Moss; Pathogenesis-related protein; Physcomitrella patens; PR-1; Salicylic acid;

D O I：

10.1007/s10327-004-0154-3

中图分类号：

学科分类号：

摘要：

Vascular plants have various inducible resistance mechanisms as defense against pathogens. Mosses, small nonvascular plants (subkingdom Bryophyta), have been little studied in regard to their pathogens or modes of defense. Data here show that Erwinia carotovora, a bacterial plant pathogen that causes softrot in many dicotyledonous plants, can also cause soft rot symptoms in the moss Physcomitrella patens. Infection of moss by E. carotovora required pathogenicity factors similar to those required to infect vascular plants and, again as in vascular plants, salicylic acid (SA) induced moss to inhibit tissue maceration by Erwinia. These data reveal that SA-dependent defense pathways may have evolved before differentiation of vascular and nonvascular plants. © The Phytopathological Society of Japan and Springer-Verlag 2005.

引用

页码：23 / 28

页数：5

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