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Literature summary for 2.1.1.232 extracted from

  • Hasegawa, M.; Mitsuhara, I.; Seo, S.; Okada, K.; Yamane, H.; Iwai, T.; Ohashi, Y.
    Analysis on blast fungus-responsive characters of a flavonoid phytoalexin sakuranetin; accumulation in infected rice leaves, antifungal activity and detoxification by fungus (2014), Molecules, 19, 11404-11418.
    View publication on PubMedView publication on EuropePMC
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Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
S-adenosyl-L-methionine + (2S)-naringenin Oryza sativa
-
 S-adenosyl-L-homocysteine + (2S)-sakuranetin
-
 ?

Organism

Organism UniProt Comment Textmining
Oryza sativa Q0IP69 susceptible N and resistant IL7 rice cultivars, from Nipponbare, gene OsNOMT
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
 Oryza sativa
-
seedling
-
 Oryza sativa
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
S-adenosyl-L-methionine + (2S)-naringenin
-
 Oryza sativa S-adenosyl-L-homocysteine + (2S)-sakuranetin
-
 ?

Cofactor

Cofactor Comment Organism Structure
S-adenosyl-L-methionine
-
 Oryza sativa

Expression

Organism Comment Expression
Oryza sativa blast fungus infection induces the enzyme and phytoalexin sakuranetin production in rice, overview up

General Information

General Information Comment Organism
metabolism the enzyme catalyzes the last step in sakuranetin biosynthesis, induced expression of a phytoalexin biosynthesis gene OsNOMT for naringenin 7-O-methyltransferase is found before accumulation of sakuranetin in both cultivars Oryza sativa
physiological function the key enzyme produces the rice flavonoid phytoalexin sakuranetin for resistance against blast fungus infection. The concentration of sakuranetin accumulated in infected regions in the resistant rice line is effective enough to restrict the fungus, while that in susceptible rice is too low for it. Blast fungus converts sakuranetin to less toxic compounds Oryza sativa