| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2026-02-17 |
| タイトル |
|
|
タイトル |
Comprehensive transcriptome analysis reveals coordinated multi-organ carbon metabolism responses in Medicago truncatula under water deficit stress |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
carbon metabolism |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
drought stress |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
legumes |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
root metabolism |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
transcriptome |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 著者 |
Echeverria, Andres
Calleja-Satrustegui, Aitziber
Chu, Ha Duc
Signorelli, Santiago
Buezo, Javier
Li, Weiqiang
Watanabe, Yasuko
Uehara-Yamaguchi, Yukiko
Inoue, Komaki
Asaka, Kanatani
Shimizu, Minami
Kouzai, Yusuke
Tran, Lam-Son Phan
Mochida, Keiichi
Gonzalez, Esther M.
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Medicago truncatula (Mt) is a relatively drought-tolerant model legume widely cultivated in Australia. Unlike previous studies that focus on specific plant components, this work reanalyses the metabolite pattern along with transcriptome data to understand the integrated response of the entire plant system to water deficit stress. Physiological and transcriptomic analyses of the leaves, taproots, and fibrous roots were performed in response to moderate and severe drought conditions. Our findings revealed that plants prioritize water supply to aboveground organs, leading to a significant decline in the root system water content during active growth. At the whole plant level, a coordinated upregulation involving LEA proteins, proline, and ABA metabolism was observed. Furthermore, carbohydrate metabolism, essential for sustaining tissue growth, was significantly altered by drought stress. Despite the well-established link between water deficit and reduced photosynthesis, which compromises carbon availability within the plant, the activation of a complete set of sucrose- and starch-degrading and -synthesising enzymes was detected. These enzymes act in concert with hexose and sucrose transporters to remobilise carbon throughout the plant system. In addition to enhanced carbon remobilisation, a notable root-specific downregulation of ethylene synthesis was observed, shedding light on the mechanism regulating plant growth under drought stress. In conclusion, our findings reveal a strong organ-specific and coordinated molecular response across progressive drought stress levels. |
|
言語 |
en |
| 書誌情報 |
en : Current Plant Biology
巻 46,
p. art. no. 100585,
発行日 2026-02-05
|
| 出版者 |
|
|
出版者 |
Elsevier B.V. |
|
言語 |
en |
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
22146628 |
| DOI |
|
|
関連タイプ |
isIdenticalTo |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1016/j.cpb.2026.100585 |
| 権利 |
|
|
権利情報 |
© 2026 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by- nc-nd/4.0/). |
|
言語 |
en |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 引用 |
|
|
内容記述タイプ |
Other |
|
内容記述 |
Current Plant Biology, 46, art. no. 100585; 2026 |
|
言語 |
en |
CPB46_100585.pdf (4.1 MB)
