Literature summary for 4.2.1.92 extracted from

Li, J.; Avila, C.A.; Tieman, D.M.; Klee, H.J.; Goggin, F.L.
A Comparison of the effects of fatty acid desaturase and hydroperoxide lyase on plant-aphid interactions (2018), Int. J. Mol. Sci., 19, E1077 .

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Cloned(Commentary)

Cloned (Comment)	Organism
semiquantitative RT-PCR HPL expression analysis	Solanum lycopersicum

Natural Substrates/ Products (Substrates)

Natural Substrates	Organism	Comment (Nat. Sub.)	Natural Products	Comment (Nat. Pro.)	Rev.	Reac.
(9Z,11E,13S)-13-hydroperoxy-9,11-octadecadienoic acid	Solanum lycopersicum	-	hexanal + 12-oxo-9-dodecenoic acid	-	?
(9Z,11E,13S,15Z)-13-hydroperoxy-9,11,15-octadecatrienoic acid	Solanum lycopersicum	-	(Z)-3-hexenal + 12-oxo-9-dodecenoic acid	-	?

Organism

Organism	UniProt	Comment	Textmining
Solanum lycopersicum	Q9XGI8	-	-

Substrates and Products (Substrate)

Substrates	Comment Substrates	Organism	Products	Comment (Products)	Rev.	Reac.
(9Z,11E,13S)-13-hydroperoxy-9,11-octadecadienoic acid	-	Solanum lycopersicum	hexanal + 12-oxo-9-dodecenoic acid	-	?
(9Z,11E,13S,15Z)-13-hydroperoxy-9,11,15-octadecatrienoic acid	-	Solanum lycopersicum	(Z)-3-hexenal + 12-oxo-9-dodecenoic acid	-	?
additional information	analysis of hexanal, (Z)-3-hexenal, (E)-2-hexenal, and (Z)-3-hexen-1-ol levels by gas chromatography	Solanum lycopersicum	?	-	?

Synonyms

Synonyms	Comment	Organism
hydroperoxide lyase	-	Solanum lycopersicum

Expression

Organism	Comment	Expression
Solanum lycopersicum	construction of enzyme-silenced HPL-RNAi plants	additional information

General Information

General Information	Comment	Organism
malfunction	silencing HPL in wild-type Solanum lycopersicum increases potato aphid (Macrosiphum euphorbiae) host preference and reproduction on 5-week-old plants but has no influence on 3-week-old plants. Silencing HPL in spr2 mutants does not compromise this aphid resistance. Moreover, a mutation in the FAD7 gene in Arabidopsis thaliana also confers resistance to the green peach aphid (Myzus persicae) in a genetic background that carries a null mutation in HPL	Solanum lycopersicum
metabolism	enzyme HPL is important in the biochemical pathway for synthesis of C6 volatiles in Solanum lycopersicum, pathway overview	Solanum lycopersicum
physiological function	the HPL pathway can influence direct defenses against insects, volatiles (E)-2-hexenal, hexanol, (E)-2-hexenol, and (Z)-3-hexenol reduce aphid fecundity. HPL contributes to certain forms of aphid resistance in tomato, but that the effects of fatty acid desaturase 7 (FAD7) on aphids in tomato and Arabidopsis are distinct from and independent of HPL. Disrupted function of FAD7, confers resistance to the potato aphid (Macrosiphum euphorbiae) and modifies the plant's C6 volatile profiles in Solanum lycopersicum. Moreover, a mutation in the FAD7 gene in Arabidopsis thaliana also confers resistance to the green peach aphid (Myzus persicae) in a genetic background that carries a null mutation in HPL	Solanum lycopersicum

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Release 2023.1 (January 2023)