Journal ArticleDOI
Characterization of an Inducible P450 Hydroxylase Involved in the Rice Diterpene Phytoalexin Biosynthetic Pathway
Hideki Kato,O Kodama,T Akatsuka +2 more
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TLDR
The lack of inhibitory activity of 1 for spore germination of Pyricularia oryzae indicates that the final cytochrome P450-dependent hydroxylation steps in converting 1 to oryzalexin D and E are essential for the production of rice phytoalexins with antifungal activities.About:
This article is published in Archives of Biochemistry and Biophysics.The article was published on 1995-02-01. It has received 31 citations till now. The article focuses on the topics: Cytochrome P-450 Enzyme Inhibitors & Spore germination.read more
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Journal ArticleDOI
An Overview of Gibberellin Metabolism Enzyme Genes and Their Related Mutants in Rice
Tomoaki Sakamoto,Koutarou Miura,Hironori Itoh,Tomoko Tatsumi,Miyako Ueguchi-Tanaka,Kanako Ishiyama,Masatomo Kobayashi,Ganesh Kumar Agrawal,Shin Takeda,Kiyomi Abe,Akio Miyao,Hirohiko Hirochika,Hidemi Kitano,Motoyuki Ashikari,Makoto Matsuoka +14 more
TL;DR: Based on the mutant and expression analyses, it is demonstrated that the enzymes catalyzing the early steps in the GA biosynthetic pathway are mainly encoded by single genes, while those for later steps are encoded by gene families.
Journal ArticleDOI
The biosynthesis of C5–C25 terpenoid compounds
TL;DR: This review covers recently-published experimental information on the biosynthesis of terpenoids in the range C5–C25 and considers in turn hemiterpenoids, polyprenyl diphosphate synthases, monoterpenoid, sesquiter penoids, diterPenoids, and sesterterpenoids.
Journal ArticleDOI
Identification of a Biosynthetic Gene Cluster in Rice for Momilactones
Kazuhiro Shimura,Atsushi Okada,Kazunori Okada,Yusuke Jikumaru,Kwang-Wook Ko,Tomonobu Toyomasu,Takeshi Sassa,Morifumi Hasegawa,Osamu Kodama,Naoto Shibuya,Jinichiro Koga,Hideaki Nojiri,Hisakazu Yamane +12 more
TL;DR: Functional analysis by heterologous expression in Escherichia coli followed by enzyme assays demonstrated that the AK103462 protein catalyzes the conversion of 3β-hydroxy-9βH-pimara-7,15-dien-19,6β-olide into momilactone A, providing strong evidence for the presence on chromosome 4 of a gene cluster involved in momILactone biosynthesis.
Journal ArticleDOI
A rice semi-dwarf gene, Tan-Ginbozu (D35), encodes the gibberellin biosynthesis enzyme, ent-kaurene oxidase
Hironori Itoh,Tomoko Tatsumi,Tomoaki Sakamoto,Kazuko Otomo,Tomonobu Toyomasu,Hidemi Kitano,Motoyuki Ashikari,Shigeyuki Ichihara,Makoto Matsuoka +8 more
TL;DR: Comparing d35Tan-Ginbozu with other high yielding cultivars, this work discusses strategies to produce culm architectures suitable for high crop yield by decreasing GA levels and identifies two likely candidates for phytoalexin biosynthesis.
Journal ArticleDOI
Biosynthesis, elicitation and roles of monocot terpenoid phytoalexins
Eric A. Schmelz,Alisa Huffaker,James Sims,Shawn A. Christensen,Xuan Lu,Kazunori Okada,Reuben J. Peters +6 more
TL;DR: Recent advances in the discovery, biosynthesis, elicitation and functional characterization of monocot terpenoid phytoalexins are discussed, including conclusive evidence now exists for multiple plant receptors of fungal-derived chitin elicitors, phosphorylation of membrane-associated signaling complexes, activation of mitogen-activated protein kinase, involvement of phytohormone signals, and the existence of transcription factors.