Distribution and biosynthesis of 20-hydroxyecdysone in plants of Achyranthes japonica nakai

Kyung Hwan Boo; Doseung Lee; Gyeong Lyong Jeon; Seung Hee Ko; Somi K. Cho; Jae Hoon Kim; Se Pill Park; Quanchun Hong; Sang Han Lee; Dong Sun Lee; Key Zung Riu

doi:10.1271/bbb.100410

Distribution and biosynthesis of 20-hydroxyecdysone in plants of Achyranthes japonica nakai

Kyung Hwan Boo, Doseung Lee, Gyeong Lyong Jeon, Seung Hee Ko, Somi K. Cho, Jae Hoon Kim, Se Pill Park, Quanchun Hong, Sang Han Lee, Dong Sun Lee, Key Zung Riu

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

There is increasing interest in phytoecdysteroids (PEs) because of their potential role in plant defense against insects. To understand the mechanism regulating their levels in plants, the fluctuation, distribution, and biosynthesis of PE 20-hydroxyecdysone (20E) examined in Achyranthes japonica. The total amount of 20E per individual plant initially remained at a constant level, and increased markedly after the first leaf pair (LP) stage, while the concentration of 20E in a given plant decreased rapidly during vegetative growth. In addition, the incorporation of [2-¹⁴C]-mevalonic acid into 20E did not differ significantly depending on plant organs and developmental stages, suggesting that biosynthesis of 20E is not restricted to particular organs or growth stages.

Original language	English
Pages (from-to)	2226-2231
Number of pages	6
Journal	Bioscience, Biotechnology and Biochemistry
Volume	74
Issue number	11
DOIs	https://doi.org/10.1271/bbb.100410
State	Published - 2010

Keywords

20-hydroxyecdysone
Achyranthes japonica
Biosynthesis
Distribution
Plant defense

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10.1271/bbb.100410

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title = "Distribution and biosynthesis of 20-hydroxyecdysone in plants of Achyranthes japonica nakai",

abstract = "There is increasing interest in phytoecdysteroids (PEs) because of their potential role in plant defense against insects. To understand the mechanism regulating their levels in plants, the fluctuation, distribution, and biosynthesis of PE 20-hydroxyecdysone (20E) examined in Achyranthes japonica. The total amount of 20E per individual plant initially remained at a constant level, and increased markedly after the first leaf pair (LP) stage, while the concentration of 20E in a given plant decreased rapidly during vegetative growth. In addition, the incorporation of [2-14C]-mevalonic acid into 20E did not differ significantly depending on plant organs and developmental stages, suggesting that biosynthesis of 20E is not restricted to particular organs or growth stages.",

keywords = "20-hydroxyecdysone, Achyranthes japonica, Biosynthesis, Distribution, Plant defense",

author = "Boo, {Kyung Hwan} and Doseung Lee and Jeon, {Gyeong Lyong} and Ko, {Seung Hee} and Cho, {Somi K.} and Kim, {Jae Hoon} and Park, {Se Pill} and Quanchun Hong and Lee, {Sang Han} and Lee, {Dong Sun} and Riu, {Key Zung}",

year = "2010",

doi = "10.1271/bbb.100410",

language = "English",

volume = "74",

pages = "2226--2231",

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AU - Boo, Kyung Hwan

AU - Lee, Doseung

AU - Jeon, Gyeong Lyong

AU - Ko, Seung Hee

AU - Cho, Somi K.

AU - Kim, Jae Hoon

AU - Park, Se Pill

AU - Hong, Quanchun

AU - Lee, Sang Han

AU - Lee, Dong Sun

AU - Riu, Key Zung

PY - 2010

Y1 - 2010

N2 - There is increasing interest in phytoecdysteroids (PEs) because of their potential role in plant defense against insects. To understand the mechanism regulating their levels in plants, the fluctuation, distribution, and biosynthesis of PE 20-hydroxyecdysone (20E) examined in Achyranthes japonica. The total amount of 20E per individual plant initially remained at a constant level, and increased markedly after the first leaf pair (LP) stage, while the concentration of 20E in a given plant decreased rapidly during vegetative growth. In addition, the incorporation of [2-14C]-mevalonic acid into 20E did not differ significantly depending on plant organs and developmental stages, suggesting that biosynthesis of 20E is not restricted to particular organs or growth stages.

AB - There is increasing interest in phytoecdysteroids (PEs) because of their potential role in plant defense against insects. To understand the mechanism regulating their levels in plants, the fluctuation, distribution, and biosynthesis of PE 20-hydroxyecdysone (20E) examined in Achyranthes japonica. The total amount of 20E per individual plant initially remained at a constant level, and increased markedly after the first leaf pair (LP) stage, while the concentration of 20E in a given plant decreased rapidly during vegetative growth. In addition, the incorporation of [2-14C]-mevalonic acid into 20E did not differ significantly depending on plant organs and developmental stages, suggesting that biosynthesis of 20E is not restricted to particular organs or growth stages.

KW - 20-hydroxyecdysone

KW - Achyranthes japonica

KW - Biosynthesis

KW - Distribution

KW - Plant defense

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IS - 11

ER -

Distribution and biosynthesis of 20-hydroxyecdysone in plants of Achyranthes japonica nakai

Abstract

Keywords

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