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Author Nemoto,T., Cho,E.M., Okada,A., Okada,K., Otomo,K., Kanno,Y., Toyomasu,T., Mitsuhashi,W., Sassa,T., Minami,E., Shibuya,N., Nishiyama,M., Nojiri,H. and Yamane,H.
Title Stemar-13-ene synthase, a diterpene cyclase involved in the biosynthesis of the phytoalexin oryzalexin S in rice.
Abstract:
In suspension-cultured rice cells, diterpenoid phytoalexins are produced in response to exogenously applied elicitors. We isolated a cDNA encoding a diterpene cyclase, OsDTC2, from suspension-cultured rice cells treated with a chitin elicitor. The OsDTC2 cDNA was overexpressed in Escherichia coli as a fusion protein with glutathione S-transferase, and the recombinant OsDTC2 was indicated to function as stemar-13-ene synthase that converted syn-copalyl diphosphate to stemar-13-ene, a putative diterpene hydrocarbon precursor of the phytoalexin oryzalexin S. The level of OsDTC2 mRNA in suspension-cultured rice cells began to increase 3 h after addition of the elicitor and reached the maximum after 8 h. The expression of OsDTC2 was also induced in UV-irradiated rice leaves. In addition, we indicated that stemar-13-ene accumulated in the chitin-elicited suspension-cultured rice cells and the UV-irradiated rice leaves.
Journal FEBS Lett.
Country Japan
Volume 571(1-3)
Pages 182-186
Year 2004
PubMed ID 15280039
PubMed Central ID -
DOI 10.1016/j.febslet.2004.07.002
URL -
Relation
Gene CPS2 CPS4 KS8
INSD AB118056
Strain Wild Core Collection -
Induced Mutation Lines(NIG Collection) -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
-
Stages in Each Organ
- Muant Lines (Gene)
-
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
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