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SMALL ACIDIC PROTEIN 1 (SMAP1) and SCFTIR1 ubiquitin proteasome pathway act in concert to regulate 2,4-dichlorophenoxyacetic acid-mediated alteration of actin in Arabidopsis root
https://repo.qst.go.jp/records/71955
https://repo.qst.go.jp/records/719559d4bbbcf-b6eb-4648-a9d9-94f67204e88d
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2016-07-05 | |||||
| タイトル | ||||||
| タイトル | SMALL ACIDIC PROTEIN 1 (SMAP1) and SCFTIR1 ubiquitin proteasome pathway act in concert to regulate 2,4-dichlorophenoxyacetic acid-mediated alteration of actin in Arabidopsis root | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Takahashi, Maho
× Takahashi, Maho× Umetsu, Kana× Higaki, Takumi× 大野, 豊× B., Blancaflor Elison× 大野 豊 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | 2,4-dichlorophanoxyacetic acid (2,4-D), a functional analogue of auxin, is used as an exogenous source of auxin as it evokes physiological responses like the endogenous auxin, indole-3-acetic acid (IAA).Using genetic and cellular approaches, here we demonstrate that the distinct effects of 2,4-D and IAA on actin filament organization partly dictate the differential responses of roots to these two auxin analogues. 2,4-D but not IAA altered the actin structure in long term and short term assays. Analysis of the 2,4-D specific mutant aar1-1 revealed that Small Acidic Protein 1 (SMAP1) acts as a positive regulator for the 2,4-D-induced alterations of actin. The ubiquitin proteasome mutants, tir1-1 and axr1-12, which show enhanced resistance to 2,4-D compared with IAA for root growth inhibition, were also found to have less disrupted actin filament networks after 2,4-D exposure. Collectively, these results suggest that the effects of 2,4-D on actin filament organization and root growth is mediated through synergistic interactions between SMAP1 and SCFTIR1 ubiquitin proteasome components. | |||||
| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | 22nd International Plant Growth Substances Association (IPGSA) conference | |||||
| 発表年月日 | ||||||
| 日付 | 2016-06-21 | |||||
| 日付タイプ | Issued | |||||
