| Comparison of the photo-acclimation potential of floating and benthic thalli of Sargassum horneri (Phaeophyta) during autumn and winter | |
Li, Jingjing1; Pang, Yunlong2,3; Qin, Song2,4 ; Liu, Zhengyi2,4; Zhong, Zhihai2,4; Song, Wanlin2,4; Zhuang, Longchuan2,4
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| Source Publication | JOURNAL OF OCEANOLOGY AND LIMNOLOGY
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| ISSN | 2096-5508 |
| 2021-09-16 | |
| Pages | 11 |
| Keyword | chlorophyll-a fluorescence growth photosynthesis photosynthetic pigments Sargassum horneri |
| DOI | 10.1007/s00343-021-0380-y |
| Corresponding Author | Liu, Zhengyi(zyliu@yic.ac.cn) |
| Abstract | Sargassum horneri is a foundational species and an important contributor to the floating seaweed stock along the northeastern coast of Asia. In this study, benthic and floating thalli of S. horneri were collected from Changdao Island (37 degrees 54 ' N, 120 degrees 43 ' E), Bohai Bay, China. We conducted an in-situ and an indoor experiment to study the acclimation potential in S. horneri to abiotic conditions at sea surface in autumn and winter. Both benthic and floating thalli were cultured in situ for two months (from October to December) at different depths: 0 m above sea level (masl) and 3 m below sea level (mbsl), and their growth rate, biochemical content, and photosynthetic performance were compared. During the first month of culture, the relative growth rate of floating thalli was 2-fold greater than that of benthic thalli at 0 masl. The photosynthetic rate of most thalli was significantly higher at 0 masl than at 3 mbsl. In the indoor experiments, floating and benthic thalli were exposed to high light intensity (400 mu mol photons/(m(2)center dot s) photosynthetically active radiation (PAR)) for 21 d, and their photo-acclimation capacities were compared. Under high light intensity, the two types of thalli showed low maximum quantum yield (F-v/F-m) and light utilisation efficiency (alpha) but high light saturation point (E-k). Floating thalli showed higher photosynthetic rate and photoprotective ability than benthic thalli at high light intensity. The effective quantum yield of photosystem II [Y(II)] of both types of thalli recovered after a 6-day treatment with low light intensity (40 mu mol photons/(m(2)center dot s)). These findings suggest that S. horneri is highly acclimated to the sea surface environment, which possibly contributes to its rapid accumulation and long free-floating periods at the sea surface. |
| Funding Organization | National Key Research and Development Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shandong Province ; Fundamental Research Funds for the Central Universities ; Key R&D Projects in Shandong Province (International Scientific and Technical Cooperation) |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | PHOTOSYNTHETIC ELECTRON-TRANSPORT ; MACROCYSTIS-PYRIFERA LAMINARIALES ; CHLOROPHYLL FLUORESCENCE ; XANTHOPHYLL CYCLE ; PIGMENT COMPOSITION ; TERM ACCLIMATION ; ULVA-PROLIFERA ; QUANTUM YIELD ; SEA-SURFACE ; REDOX STATE |
| WOS Research Area | Marine & Freshwater Biology ; Oceanography |
| WOS ID | WOS:000696496400007 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.yic.ac.cn/handle/133337/29768 |
| Collection | 海岸带生物学与生物资源利用重点实验室_海岸带生物学与生物资源保护实验室 |
| Corresponding Author | Liu, Zhengyi |
| Affiliation | 1.Hohai Univ, Key Lab Marine Hazards Forecasting, Minist Nat Resources, Nanjing 210098, Peoples R China 2.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China 3.Weihai Vocat Coll, Weihai 264200, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Megasci, Qingdao 266071, Peoples R China |
| Recommended Citation GB/T 7714 | Li, Jingjing,Pang, Yunlong,Qin, Song,et al. Comparison of the photo-acclimation potential of floating and benthic thalli of Sargassum horneri (Phaeophyta) during autumn and winter[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2021:11. |
| APA | Li, Jingjing.,Pang, Yunlong.,Qin, Song.,Liu, Zhengyi.,Zhong, Zhihai.,...&Zhuang, Longchuan.(2021).Comparison of the photo-acclimation potential of floating and benthic thalli of Sargassum horneri (Phaeophyta) during autumn and winter.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,11. |
| MLA | Li, Jingjing,et al."Comparison of the photo-acclimation potential of floating and benthic thalli of Sargassum horneri (Phaeophyta) during autumn and winter".JOURNAL OF OCEANOLOGY AND LIMNOLOGY (2021):11. |
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| Comparison of the ph（859KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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