Literature summary for 4.1.2.8 extracted from

Frey, M.; Spiteller, D.; Boland, W.; Gierl, A.
Transcriptional activation of Igl, the gene for indole formation in Zea mays: a structure-activity study with elicitor-active N-acyl glutamines from insects (2004), Phytochemistry, 65, 1047-1055.

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Natural Substrates/ Products (Substrates)

Natural Substrates	Organism	Comment (Nat. Sub.)	Natural Products	Comment (Nat. Pro.)	Rev.	Reac.
indole-3-glycerol phosphate	Zea mays	the indole-3-glycerol phosphate lyase Igl is the structural gene of volatile indole biosynthesis in the tritrophic interaction in maize. The gene is activated on transcriptional level with the same kinetics and to the same level by the fatty acid amino acid conjugates volicitin and N-linolenoyl-L-glutamine. Both conjugates are present in the regurgitates of herbivorous caterpillars. Modifications of the fatty acid moiety of the fatty acid amino acid conjugates greatly reduces the elicitation of Igl and only the L-stereoisomer of the fatty acid amino acid conjugates shows biological activity in the system. Volicitin treatment leads to a fast increase of allene oxide synthase and allene oxide cyclase transcription levels and methyl jasmonate application induces Igl transcription. Hence,the induction of jasmonate biosynthesis appears to be an integral part of the elicitor mediated increase of Igl gene transcription	indole + glyceraldehyde 3-phosphate	-	?

Organism

Organism	UniProt	Comment	Textmining
Zea mays	-	-	-

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
indole-3-glycerol phosphate	-	Zea mays	indole + glyceraldehyde 3-phosphate	-	?
indole-3-glycerol phosphate	the indole-3-glycerol phosphate lyase Igl is the structural gene of volatile indole biosynthesis in the tritrophic interaction in maize. The gene is activated on transcriptional level with the same kinetics and to the same level by the fatty acid amino acid conjugates volicitin and N-linolenoyl-L-glutamine. Both conjugates are present in the regurgitates of herbivorous caterpillars. Modifications of the fatty acid moiety of the fatty acid amino acid conjugates greatly reduces the elicitation of Igl and only the L-stereoisomer of the fatty acid amino acid conjugates shows biological activity in the system. Volicitin treatment leads to a fast increase of allene oxide synthase and allene oxide cyclase transcription levels and methyl jasmonate application induces Igl transcription. Hence,the induction of jasmonate biosynthesis appears to be an integral part of the elicitor mediated increase of Igl gene transcription	Zea mays	indole + glyceraldehyde 3-phosphate	-	?

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Release 2023.1 (January 2023)