Glucosinolates and Plant Defense

Living reference work entry
Part of the Reference Series in Phytochemistry book series (RSP)


Glucosinolates are unique secondary metabolites present in the members of family Brassicaceae. The major role of glucosinolates in plants is believed to be responses to external or environmental stimuli. Glucosinolates are also involved in communicating and triggering a range of information pertaining to plant defense against insects, some food bacteria, and against some fungi. Glucosinolates are hydrolyzed by the enzyme myrosinase on injury to plant to produce isothiocyanates and subsequently by PAL to toxic compounds injurious to the pathogen. In this review, the role of glucosinolates in plant defense has been discussed with possible involvement of PAL enzyme.


Glucosinolates Plant defense Brassicas Bion SAR Isothiocyanates Phenylalanine ammonia lyase Phosphonate Broccoli 



High aliphatic glucosinolate


Phenylalanine ammonia lyase


Salicylic acid


Systemic acquired resistance


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Authors and Affiliations

  1. 1.Faculty of Agriculture and EnvironmentThe University of SydneySydneyAustralia

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