Plant Biochemistry Laboratory, Department of Plant Biology, University of Copenhagen, DK-1871 Frederiksberg C, Copenhagen, Denmark.
Curr Opin Plant Biol. 2010 Jun;13(3):338-47. doi: 10.1016/j.pbi.2010.01.009. Epub 2010 Mar 1.
Cyanogenic glucosides are present in many plants and their ability to liberate toxic HCN offers an immediate chemical defense response to herbivores and pathogens causing damage of the plant tissue. Countermeasures have evolved to overcome this type of defense and in some cases herbivores and pathogens are able to exploit the presence of cyanogenic glucosides to their own advantage. In plants, cyanogenic glucosides have gained additional functionalities as transporters of nitrogen and operation of an endogenous turnover pathway may enable plants to withdraw the nitrogen and glucose deposited in cyanogenic glucosides for use in primary metabolism. The aim of this review is to provide an overview of the new knowledge on these diverse functionalities of cyanogenic glucosides.
氰苷存在于许多植物中，其释放有毒 HCN 的能力为植物组织提供了一种针对草食动物和病原体的即时化学防御反应。植物进化出了对策来克服这种类型的防御，在某些情况下，草食动物和病原体能够利用氰苷的存在为自己谋利。在植物中，氰苷具有作为氮的运输体的额外功能，内源性周转途径的运作可能使植物能够从氰苷中提取储存的氮和葡萄糖，以供初级代谢使用。本文综述的目的是提供关于氰苷这些多样化功能的新知识概述。
