ISOLATION AND PURITY DETERMINATION OF A GLYCOPROTEIN ELICITOR FROM WHEAT-STEM RUST BY MEDIUM-PRESSURE LIQUID-CHROMATOGRAPHY

被引:10
作者
BEISSMANN, B
REISENER, HJ
机构
[1] RWTH Aachen, Institut für Biologie III, D-5100 Aachen, Worringerweg
来源
JOURNAL OF CHROMATOGRAPHY | 1990年 / 521卷 / 02期
关键词
D O I
10.1016/0021-9673(90)85043-U
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Previously the isolation of a single glycoprotein (pgt-elicitor) from cell walls of the phytopathogenic fungus Puccinia graminis f.sp. tritici Erics. & Henn., which elicits defence reactions in wheat leaves was described. The apparent molecular mass of this compound, isolated via concanavalin A affinity chromatography and anion-exchange chromatography, was 67 000 as determined by sodium dodecyl sulphate polyacrylamide gel electrophoresis. A scaled-up procedure for purifying larger amounts of fungal elicitor based on anion-exchange fast protein liquid chromatography (FPLC) with Q-Sepharose Fast Flow medium has now been developed. The yield of pure elicitor was further increased by the use of the volatile buffer ammonium carbonate for eluting the bound glycoproteins. Analytical size-exclusion FPLC supplemented gel electrophoretic results by quantifying small amounts of inactive components contaminating the most active elicitor fraction. Further, purity determination by FPLC provided evidence of well defined complex formation leading to co-migration of elicitor-associated glycoproteins during anion-exchange chromatography. The glycoprotein complexes were separated during size-exclusion FPLC at lowered pH (100 mM acetic acid). Thus, size exclusion FPLC resulted in final purification of the pgt-elicitor. © 1990.
引用
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页码:187 / 197
页数:11
相关论文
共 27 条
[1]  
[Anonymous], INSTRUCTION MANUAL M
[2]  
BEARDMORE J, 1983, PHYSIOL PLANT PATHOL, V22, P209
[3]  
BLAICHER M, 1985, FAST PROTEIN LIQUID, P1
[4]  
BOLLER T, 1987, PLANT MICROBE INTERA, V2, P385
[5]  
BRADFORD MM, 1976, ANAL BIOCHEM, V72, P248, DOI 10.1016/0003-2697(76)90527-3
[6]   PHYTOALEXINS AND THEIR ELICITORS - A DEFENSE AGAINST MICROBIAL INFECTION IN PLANTS [J].
DARVILL, AG ;
ALBERSHEIM, P .
ANNUAL REVIEW OF PLANT PHYSIOLOGY AND PLANT MOLECULAR BIOLOGY, 1984, 35 :243-275
[7]  
DISCHE Z, 1951, J BIOL CHEM, V192, P583
[8]  
EBEL J, 1986, ANNU REV PHYTOPATHOL, V24, P235
[9]  
FREIFELDER D, 1982, PHYSICAL BIOCH
[10]  
HAWKES R, 1982, ANAL BIOCHEM, V123, P143, DOI 10.1016/0003-2697(82)90634-0