Systemic Induction of Photosynthesis via Illumination of the Shoot Apex Is Mediated Sequentially by Phytochrome B, Auxin and Hydrogen Peroxide in Tomato
| Autor: | Zhixin, Guo, Feng, Wang, Xun, Xiang, Golam Jalal, Ahammed, Mengmeng, Wang, Eugen, Onac, Jie, Zhou, Xiaojian, Xia, Kai, Shi, Xueren, Yin, Kunsong, Chen, Jingquan, Yu, Christine H, Foyer, Yanhong, Zhou |
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| Rok vydání: | 2016 |
| Předmět: |
animal structures
Indoleacetic Acids Light Reverse Transcriptase Polymerase Chain Reaction fungi NADPH Dehydrogenase food and beverages NADPH Oxidases Hydrogen Peroxide Articles Plants Genetically Modified Electron Transport Plant Leaves Adenosine Triphosphate Solanum lycopersicum Gene Expression Regulation Plant Phytochrome B Mutation RNA Interference Photosynthesis Plant Shoots Plant Proteins |
| Zdroj: | Plant physiology. 172(2) |
| ISSN: | 1532-2548 |
| Popis: | Systemic signaling of upper leaves promotes the induction of photosynthesis in lower leaves, allowing more efficient use of light flecks. However, the nature of the systemic signals has remained elusive. Here, we show that preillumination of the tomato (Solanum lycopersicum) shoot apex alone can accelerate photosynthetic induction in distal leaves and that this process is light quality dependent, where red light promotes and far-red light delays photosynthetic induction. Grafting the wild-type rootstock with a phytochome B (phyB) mutant scion compromised light-induced photosynthetic induction as well as auxin biosynthesis in the shoot apex, auxin signaling, and RESPIRATORY BURST OXIDASE HOMOLOG1 (RBOH1)-dependent hydrogen peroxide (H |
| Databáze: | OpenAIRE |
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