Academic Journal
Skotomorphogenesis exploits threonine to promote hypocotyl elongation
| العنوان: | Skotomorphogenesis exploits threonine to promote hypocotyl elongation |
|---|---|
| المؤلفون: | Hiromitsu Tabeta, Yasuhiro Higashi, Yozo Okazaki, Kiminori Toyooka, Mayumi Wakazaki, Mayuko Sato, Kazuki Saito, Masami Y Hirai, Ali Ferjani |
| المصدر: | Quantitative Plant Biology, Vol 3 (2022) |
| بيانات النشر: | Cambridge University Press, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Plant culture LCC:Botany |
| مصطلحات موضوعية: | Arabidopsis thaliana, hypocotyl length, peroxisome, IBR10, metabolomics, threonine, Plant culture, SB1-1110, Botany, QK1-989 |
| الوصف: | Mobilisation of seed storage reserves is important for seedling establishment in Arabidopsis. In this process, sucrose is synthesised from triacylglycerol via core metabolic processes. Mutants with defects in triacylglycerol-to-sucrose conversion display short etiolated seedlings. We found that whereas sucrose content in the indole-3-butyric acid response 10 (ibr10) mutant was significantly reduced, hypocotyl elongation in the dark was unaffected, questioning the role of IBR10 in this process. To dissect the metabolic complexity behind cell elongation, a quantitative-based phenotypic analysis combined with a multi-platform metabolomics approach was applied. We revealed that triacylglycerol and diacylglycerol breakdown were disrupted in ibr10, resulting in low sugar content and poor photosynthetic ability. Importantly, batch-learning self-organised map clustering revealed that threonine level was correlated with hypocotyl length. Consistently, exogenous threonine supply stimulated hypocotyl elongation, indicating that sucrose levels are not always correlated with etiolated seedling length, suggesting the contribution of amino acids in this process. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2632-8828 |
| Relation: | https://www.cambridge.org/core/product/identifier/S2632882822000194/type/journal_article; https://doaj.org/toc/2632-8828 |
| DOI: | 10.1017/qpb.2022.19 |
| URL الوصول: | https://doaj.org/article/03265369010940f8847a93eb07c73b5d |
| رقم الانضمام: | edsdoj.03265369010940f8847a93eb07c73b5d |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 26328828 |
|---|---|
| DOI: | 10.1017/qpb.2022.19 |