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MetNet - plant pathway - indole glucosinolate breakdown (insect chewing induced)
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Pathway details: indole glucosinolate breakdown (insect chewing induced)


General info Interaction details Linked pathways Protein-protein interactions
Notes
  Pathway was created on Mon Jul 29, 2013.
 Contributed by aracyc:
Glucosinolates are beta-thio-glucosides. They are found prominently in the order Capparales, which includes cabbage, mustard, oilseed rape, broccoli, and the model plant Arabidopsis. In addition to be responsible for the typical sharp taste and odor of many glucosinolate-producing plants, glucosinolates play an important role in plant defense. In plant herbivore defense, upon insect chewing on the plant tissues, glucosinolates are hydrolyzed and broken down to toxic compounds by the myrosinase (beta-thioglucoside glucohydrolase) system. In this process, bioactive isothiocyanate, simple nitrile and epithionitrile are produced from aliphatic glucosinolates, whereas, only isothiocyante and simple nitrile are produced from indole glucosinolates . Additionally, indole glucosinolates can be hydrolyzed in vivo in living plant cells by the specific myrosinase PEN2-dependent pathway indole glucosinolate breakdown (active in intact plant cell). The hydrolysis products in the PEN2- pathway are different from the insect chewing induced indole glucosinolate degradation, and are found bioactive in broad-spectrum antifungal defense . The insect chewing-induced pathway, as depicted here, is independent of the previously characterized myrosinases TGG1 and TGG2, as tgg1 tgg2 double mutants excreted a similar metabolite profile as the wild type plants .
  Parts of this pathway occur in:   cytosol     nucleus  


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metabolite [27]
polypeptide [14]
gene [13]
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protein complex [6]


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