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- Title
Moss-Erwiniapathosystem reveals possible similarities in pathogenesis and pathogen defense in vascular and nonvascular plants.
- Authors
Andersson, Robert A.; Akita, Motomu; Pirhonen, Minna; Gammelgård, Elin; Valkonen, Jari P. T.
- Abstract
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 thatErwinia carotovora, a bacterial plant pathogen that causes softrot in many dicotyledonous plants, can also cause soft rot symptoms in the mossPhyscomitrella patens. Infection of moss byE. carotovorarequired 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 byErwinia. These data reveal that SA-dependent defense pathways may have evolved before differentiation of vascular and nonvascular plants.
- Subjects
BOTANY; PHYTOPATHOGENIC microorganisms; DISEASE resistance of plants; ERWINIA carotovora; SALICYLIC acid; MOSSES
- Publication
Journal of General Plant Pathology, 2005, Vol 71, Issue 1, p23
- ISSN
1345-2630
- Publication type
Article
- DOI
10.1007/s10327-004-0154-3