Photosynthetic acclimation during low-light-induced leaf senescence in post-anthesis maize plants
文献类型：期刊论文
| 作者 | Wu, Han-Yu; Liu, Li-An; Shi, Lei; Zhang, Wang-Feng; Jiang, Chuang-Dao |
| 刊名 | PHOTOSYNTHESIS RESEARCH
 |
| 出版日期 | 2021 |
| 卷号 | 150期号:1-3页码:313-326 |
| ISSN号 | 0166-8595 |
| 关键词 | Low light Senescence Acclimation Photosynthesis Reproductive growth period |
| DOI | 10.1007/s11120-021-00851-1 |
| 文献子类 | Article |
| 英文摘要 | Low light conditions not only induce leaf senescence, but also photosynthetic acclimation. This study aimed to determine whether plants exhibit photosynthetic acclimation during low-light-induced leaf senescence. The influences of shading on leaf senescence and photosynthetic acclimation were explored in post-anthesis maize plants. The results showed that whole shading (WS) of maize plants accelerated leaf senescence, whereas partial shading (PS) slowed leaf senescence. WS led to larger decreases in the photosynthetic rate (P-n) and stomatal conductance (G(s)) compared to those of the PS treatment. Interestingly, chlorophyll a fluorescence (ChlF) demonstrated that the absorption flux (ABS/CSo) and trapped energy flux (TRo/CSo) per cross section in leaves remained relatively stable under WS, whereas significant decreases in the active PSII reaction centers (RC/CSo) resulted in considerable increases in absorption (ABS/RC) and trapped energy flux (TRo/RC) per reaction center. ABS/CSo, TRo/CSo, ABS/RC, and TRo/RC increased markedly under PS, whereas there were slight decreases in RC/CSo and electron transport activity. These results suggest that the PS treatment resulted in obvious improvements in the absorption and capture of light energy in shaded leaves. Further analysis demonstrated that both the WS and PS treatments resulted in a greater decrease in the activity of Rubisco compared to that of phosphoenolpyruvate carboxylase (PEPC). Moreover, PEPC activity in PS was maintained at a high level. Consequently, the current study proposed that the improvement of the absorption and capture of light energy and the maintenance of PEPC activity of mesophyll cells were due to photosynthetic acclimation of low-light-induced leaf senescence in maize plants. In addition, the rate of senescence of vascular bundle cells in maize leaves exceeded that of mesophyll cells under low light, showing obvious tissue specificity. |
| 学科主题 | Plant Sciences |
| 电子版国际标准刊号 | 1573-5079 |
| 出版地 | DORDRECHT |
| WOS关键词 | CHLOROPHYLL-A FLUORESCENCE ; DARK-INDUCED SENESCENCE ; SPINACH LEAVES ; STRESS ; DEGRADATION ; PHYTOCHROME ; TEMPERATURE ; TOLERANCE ; GRADIENTS ; GROWTH |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000658073400001 |
| 资助机构 | National Natural Science Foundation of China [31571576, 31970350] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/26422]  |
| 专题 | 中科院北方资源植物重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, Key Lab Plant Resources, Beijing 100093, Peoples R China 2.[Wu, Han-Yu 3.Shihezi Univ, Key Lab Oasis Ecoagr, Xinjiang Prod & Construct Corps, Coll Agron, Shihezi 832003, Peoples R China 4.Liu, Li-An 5.Shi, Lei |
| 推荐引用方式 GB/T 7714 | Wu, Han-Yu,Liu, Li-An,Shi, Lei,et al. Photosynthetic acclimation during low-light-induced leaf senescence in post-anthesis maize plants[J]. PHOTOSYNTHESIS RESEARCH,2021,150(1-3):313-326. |
| APA | Wu, Han-Yu,Liu, Li-An,Shi, Lei,Zhang, Wang-Feng,&Jiang, Chuang-Dao.(2021).Photosynthetic acclimation during low-light-induced leaf senescence in post-anthesis maize plants.PHOTOSYNTHESIS RESEARCH,150(1-3),313-326. |
| MLA | Wu, Han-Yu,et al."Photosynthetic acclimation during low-light-induced leaf senescence in post-anthesis maize plants".PHOTOSYNTHESIS RESEARCH 150.1-3(2021):313-326. |
入库方式： OAI收割
来源：植物研究所
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