β-glucosidases as detonators of plant chemical defense

被引：426

作者：

Morant, Anne Vinther ^{[1
,2
]}

Jorgensen, Kirsten ^{[1
,2
]}

Jorgensen, Charlotte ^{[1
,2
]}

Paquette, Suzanne Michelle ^{[3
]}

Sanchez-Perez, Raquel ^{[1
,2
]}

Moller, Birger Lindberg ^{[1
,2
]}

Bak, Soren ^{[1
,2
]}

机构：

[1] Univ Copenhagen, Dept Plant Biol, Plant Biochem Lab, DK-1871 Copenhagen, Denmark

[2] Univ Copenhagen, VKR Res Ctr Proact Plants, DK-1871 Copenhagen, Denmark

[3] Univ Washington, Dept Biol Struct, Seattle, WA 98195 USA

来源：

PHYTOCHEMISTRY | 2008年 / 69卷 / 09期

关键词：

beta-glucosidase; plant chemical defense; two-component system; bioactivation; cyanogenic glucosides; glucosinolates; avenacosides; benzoxazinoid glucosides; beta-glucosidase aggregating factor; myrosinase binding protein;

D O I：

10.1016/j.phytochem.2008.03.006

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：

Some plant secondary metabolites are classified as phytoanticipins. When plant tissue in which they are present is disrupted, the phytoanticipins are bio-activated by the action of beta-glucosidases. These binary systems - two sets of components that when separated are relatively inert - provide plants with an immediate chemical defense against protruding herbivores and pathogens. This review provides an update on our knowledge of the beta-glucosidases involved in activation of the four major classes of phytoanticipins: cyanogenic glucosides, benzoxazinoid glucosides, avenacosides and glucosinolates. New aspects of the role of specific proteins that either control oligomerization of the beta-glucosidases or modulate their product specificity are discussed in an evolutionary perspective. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1795 / 1813

页数：19

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