Mass spectrometric identification of Isoforms of PR proteins in xylem sap of fungus-infected tomato

被引:173
作者
Rep, M
Dekker, HL
Vossen, JH
de Boer, AD
Houterman, PM
Speijer, D
Back, JW
de Koster, CG
Cornelissen, BJC
机构
[1] Univ Amsterdam, Swammerdam Inst Life Sci, NL-1090 GB Amsterdam, Netherlands
[2] Univ Amsterdam, Swammerdam Inst Life Sci, NL-1018 WV Amsterdam, Netherlands
[3] Univ Amsterdam, Acad Med Ctr, NL-1105 AZ Amsterdam, Netherlands
关键词
D O I
10.1104/pp.007427
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
The protein content of tomato (Lycopersicon esculentum) xylem sap was found to change dramatically upon infection with the vascular wilt fungus Fusarium oxysporum. Peptide mass fingerprinting and mass spectrometric sequencing were used to identify the most abundant proteins appearing during compatible or incompatible interactions. A new member of the PR-5 family was identified that accumulated early in both types of interaction. Other pathogenesis-related proteins appeared in compatible interactions only, concomitantly with disease development. This study demonstrates the feasibility of using proteomics for the identification of known and novel proteins in xylem sap, and provides insights into plant-pathogen interactions in vascular wilt diseases.
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页码:904 / 917
页数:14
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