Isolation and characterization of a jacalin-related mannose-binding lectin from salt-stressed rice (Oryza sativa) plants

被引：0

作者：

Zhang, WL

Peumans, WJ

Barre, A

Astoul, CH

Rovira, P

Rougé, P

Proost, P

Truffa-Bachi, P

Jalali, AAH

Van Damme, EJM

机构：

[1] Katholieke Univ Leuven, Lab Phytopathol & Plant Protect, B-3001 Louvain, Belgium

[2] CNRS, Inst Pharmacol & Biol Struct, UPR 9062, F-31077 Toulouse, France

[3] Inst Pasteur, Unite Immunophysiol Mol, CNRS, LA 1961,Dept Immunol, F-75724 Paris 15, France

[4] Katholieke Univ Leuven, Rega Inst, Lab Mol Immunol, B-3000 Louvain, Belgium

来源：

PLANTA | 2000年 / 210卷 / 06期

关键词：

jacalin; lectin; Oryza (salt stress); salt stress; stress protein;

D O I：

暂无

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

A novel plant lectin was isolated from salt-stressed rice (Oryza sativa L.) plants and partially characterized. The lectin occurs as a natural mixture of two closely related isoforms consisting of two identical non-covalently linked subunits of 15 kDa. Both isoforms are best inhibited by mannose and exhibit potent mitogenic activity towards T-lymphocytes. Biochemical analyses and sequence comparisons further revealed that the rice lectins belong to the subgroup of mannose-binding jacalin-related lectins. In addition, it could be demonstrated that the lectins described here correspond to the protein products of previously described salt-stress-induced genes. Our results not only identify the rice lectin as a stress protein but also highlight the possible importance of protein-carbohydrate interactions in stress responses in plants.

引用

页码：970 / 978

页数：9

共 31 条

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