Drought stress delays photosynthetic induction and accelerates photoinhibition under short-term fluctuating light in tomato
文献类型：期刊论文
| 作者 | Sun,Hu; Shi,Qi; Liu,Ning-Yu; Zhang,Shi-Bao; Huang,Wei
|
| 刊名 | PLANT PHYSIOLOGY AND BIOCHEMISTRY
 |
| 出版日期 | 2023 |
| 卷号 | 196页码:152-161 |
| 关键词 | Drought Fluctuating light Mesophyll conductance Stomatal conductance Photoinhibition Photosynthesis CYCLIC ELECTRON FLOW PROTON MOTIVE FORCE PHOTOSYSTEM-I CO2 ASSIMILATION MESOPHYLL CONDUCTANCE GAS-EXCHANGE CHLOROPHYLL FLUORESCENCE TEMPERATURE RESPONSES LIMITATIONS |
| ISSN号 | 1873-2690 |
| DOI | 10.1016/j.plaphy.2023.01.044 |
| 英文摘要 | Fluctuating light (FL) and drought stress usually occur concomitantly. However, whether drought stress affects photosynthetic performance under FL remains unknown. Here, we measured gas exchange, chlorophyll fluo-rescence, and P700 redox state under FL in drought-stressed tomato (Solanum lycopersicum) seedlings. Drought stress significantly delayed the induction kinetics of stomatal and mesophyll conductances after transition from low to high light and thus delayed photosynthetic induction under FL. Therefore, drought stress exacerbated the loss of carbon gain under FL. Furthermore, restriction of CO2 fixation under drought stress aggravated the over-reduction of photosystem I (PSI) upon transition from low to high light. The resulting stronger FL-induced PSI photoinhibition significantly suppressed linear electron flow and PSI photoprotection. These results indicated that drought stress not only caused a larger loss of carbon gain under FL but also accelerated FL-induced pho-toinhibition of PSI. Furthermore, drought stress enhanced relative cyclic electron flow in FL, which partially compensated for restricted CO2 fixation and thus favored PSI photoprotection under FL. To our knowledge, we here show new insight into how drought stress affects photosynthetic performance under FL. |
| 学科主题 | Plant Sciences |
| WOS记录号 | WOS:000927478300001 |
| 源URL | [http://ir.kib.ac.cn/handle/151853/75395]  |
| 专题 | 中国科学院昆明植物研究所 |
| 推荐引用方式 GB/T 7714 | Sun,Hu,Shi,Qi,Liu,Ning-Yu,et al. Drought stress delays photosynthetic induction and accelerates photoinhibition under short-term fluctuating light in tomato[J]. PLANT PHYSIOLOGY AND BIOCHEMISTRY,2023,196:152-161. |
| APA | Sun,Hu,Shi,Qi,Liu,Ning-Yu,Zhang,Shi-Bao,&Huang,Wei.(2023).Drought stress delays photosynthetic induction and accelerates photoinhibition under short-term fluctuating light in tomato.PLANT PHYSIOLOGY AND BIOCHEMISTRY,196,152-161. |
| MLA | Sun,Hu,et al."Drought stress delays photosynthetic induction and accelerates photoinhibition under short-term fluctuating light in tomato".PLANT PHYSIOLOGY AND BIOCHEMISTRY 196(2023):152-161. |
入库方式： OAI收割
来源：昆明植物研究所
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