Institutional Repository of Key Laboratory of Marine Ecology & Environmental Sciences, CAS
| Variation in biochemical composition during encystment of the planktonic dinoflagellate Akashiwo sanguinea in N-limited cultures | |
Liu, Yun1,2,3; Chen, Tiantian1,2,3 ; Song, Shuqun1,2,3; Li, Caiwen1,2,3,4
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| 2019-09-01 | |
| Source Publication | MARINE BIOLOGY
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| ISSN | 0025-3162 |
| Volume | 166Issue:9Pages:12 |
| Corresponding Author | Li, Caiwen(cwli@qdio.ac.cn) |
| Abstract | The planktonic dinoflagellate Akashiwo sanguinea is a commonly observed bloom-forming species in estuarine and coastal waters worldwide. Large scales of A. sanguinea bloom cause the mass mortality of fish, shellfish, and sea birds. The formation of resting cysts plays as a potential vector for its wide distribution and frequent recurrence of blooms; however, the biochemical characteristics of algal cells during their life cycle remain unclear. For the first time, the variations in cellular chlorophyll a (Chl a), protein, carbohydrate, and total lipid contents during encystment of A. sanguinea cultured in different nitrate concentrations, namely 0-, 25-, 50-, 100-, 200-, and 833-mu M N-added treatment, were studied in the present study. The results indicated that resting cysts were formed in all the N treatments, with the highest encystment ratio of 3.34 +/- 0.57% observed in the 100-mu M N-added treatment, and the lowest rate of 0.80 +/- 0.03% observed in the 883-mu M N-added treatment. The levels of the four biochemical components varied significantly during the encystment process. The Chl a and protein levels were significantly lower in newly formed cysts than in vegetative cells; however, continuous accumulation of carbohydrates and total lipids occurred with the algal growth, particularly of carbohydrates in the resting cysts, which was more than tenfold greater than those in the vegetative cells. Low initial N concentrations were more favorable for carbohydrate accumulation in cysts than high N concentrations. The accumulated components may play vital roles for the substance of A. sanguinea during resting stage. The results provided fundamental information for an improved understanding of the physiological response of A. sanguinea during encystment. |
| DOI | 10.1007/s00227-019-3569-2 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National Natural Science Foundation of China (NSFC)[41506141] ; National Key R&D Program of China[2017YFC1404300] ; Youth Talent Support Program of the Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao)[LMEES-YTSP-2018-01-06] ; NSFC-Shandong Joint Fund for Marine Science Research Center[U1606404] |
| WOS Research Area | Marine & Freshwater Biology |
| WOS Subject | Marine & Freshwater Biology |
| WOS ID | WOS:000483689700002 |
| Publisher | SPRINGER HEIDELBERG |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qdio.ac.cn/handle/337002/162832 |
| Collection | 海洋生态与环境科学重点实验室 |
| Corresponding Author | Li, Caiwen |
| Affiliation | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Shandong, Peoples R China 2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Ecol & Environm Sci, Qingdao 266237, Shandong, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Shandong, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| First Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Corresponding Author Affilication | Institute of Oceanology, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | Liu, Yun,Chen, Tiantian,Song, Shuqun,et al. Variation in biochemical composition during encystment of the planktonic dinoflagellate Akashiwo sanguinea in N-limited cultures[J]. MARINE BIOLOGY,2019,166(9):12. |
| APA | Liu, Yun,Chen, Tiantian,Song, Shuqun,&Li, Caiwen.(2019).Variation in biochemical composition during encystment of the planktonic dinoflagellate Akashiwo sanguinea in N-limited cultures.MARINE BIOLOGY,166(9),12. |
| MLA | Liu, Yun,et al."Variation in biochemical composition during encystment of the planktonic dinoflagellate Akashiwo sanguinea in N-limited cultures".MARINE BIOLOGY 166.9(2019):12. |
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