ELICITOR-INDUCED AND WOUND-INDUCED OXIDATIVE CROSS-LINKING OF A PROLINE-RICH PLANT-CELL WALL PROTEIN - A NOVEL, RAPID DEFENSE RESPONSE

被引：976

作者：

BRADLEY, DJ ^{[1
]}

KJELLBOM, P ^{[1
]}

LAMB, CJ ^{[1
]}

机构：

[1] SALK INST BIOL STUDIES,PLANT BIOL LAB,LA JOLLA,CA 92037

来源：

CELL | 1992年 / 70卷 / 01期

关键词：

D O I：

10.1016/0092-8674(92)90530-P

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Treatment of bean or soybean cells with fungal elicitor or glutathione causes a rapid insolubilization of preexisting (hydroxy)proline-rich structural proteins in the cell wall. This insolubilization, which involves H2O2-mediated oxidative cross-linking, is initiated within 2 min and is complete within 10 min under optimal conditions, and hence, precedes the expression of transcription-dependent defenses. Cross-linking is also under developmental control during hypocotyl growth and in tissues subject to mechanical stress such as the stem-petiole junction. Stimulus-dependent oxidative cross-linking of wall structural proteins is a novel site of cellular regulation with potentially important functions in cell maturation and toughening of cell walls in the initial stages of plant defense.

引用

页码：21 / 30

页数：10

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