| A dark-tolerant diatom (Chaetoceros) cultured from the deep sea | |
Mou, Shanli1,2; Zhang, Zenghu1,2; Zhao, Hanshuang1,2; Nair, Shailesh1,2; Li, Yuhang3 ; Xu, Kuidong3; Tian, Jiwei4; Zhang, Yongyu1,2
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| 2022-02-28 | |
| 发表期刊 | JOURNAL OF PHYCOLOGY
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| ISSN | 0022-3646 |
| 页码 | 11 |
| 通讯作者 | Zhang, Yongyu(zhangyy@qibebt.ac.cn) |
| 摘要 | Although the extreme conditions of the deep sea are typically not suitable for the growth of photosynthetic algae, accumulating evidence indicates that there are diverse healthy phytoplankton living in this environment. However, living phytoplankton from the deep sea have rarely been isolated and cultivated, and so our understanding of where they come from and how they adapt to (or tolerate) the extreme deep-sea environment is limited. Here, under long-term dark stress and subsequent light treatment, we successfully isolated a diatom from a depth of 1,000 m in the Western Pacific Ocean. Morphological observations and molecular phylogenetic analysis revealed that it is affiliated to the genus Chaetoceros, and thus, we tentatively named it Chaetoceros sp. DS1. We observed that the chloroplast genome of this species, is most closely related to that of Chaetoceros simplex. It was shown to have a strong tolerance to darkness in that it maintained its morphological integrity and vitality for up to 3 months in complete darkness at room temperature. We also demonstrated that Chaetoceros sp. DS1 presented a facultative heterotrophic function. Its growth was promoted by many organic carbon sources (e.g., glycerine, ethanol, and sodium acetate) under low light conditions. However, under dark and high light conditions, the growth promotion effect of organic carbon was not obvious. Indeed, Chaetoceros sp. DS1 grew best under low light conditions, indicating that it likely came from the deeper layer of the euphotic zone. The facultative heterotrophic function of this diatom and tolerance to darkness may help it survive in these conditions or enter a dormant period in the deep sea. |
| 关键词 | deep-sea phytoplankton dark-tolerant diatom Chaetoceros chloroplast facultative heterotrophy |
| DOI | 10.1111/jpy.13240 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 资助项目 | National Natural Science Foundation of China[41806172] ; National Natural Science Foundation of China[31700104] ; Center for Ocean Mega-Science, CAS[KEXUE2019GZ03] ; key lab of marine bio-active substance and modern analytical technique, SOA[MBSMAT-2018-05] ; DICPQIBEBT[DICPQIBEBT UN201803] ; Dalian National Laboratory For Clean Energy (DNL), CAS |
| WOS研究方向 | Plant Sciences ; Marine & Freshwater Biology |
| WOS类目 | Plant Sciences ; Marine & Freshwater Biology |
| WOS记录号 | WOS:000761817300001 |
| 出版者 | WILEY |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/178060 |
| 专题 | 海洋生物分类与系统演化实验室 |
| 通讯作者 | Zhang, Yongyu |
| 作者单位 | 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biofuels, Shandong Prov Key Lab Energy Genet, Qingdao 266101, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Megasci, Inst Oceanol,Shandong Prov Key Lab Expt Marine Bi, Lab Marine Organism Taxon & Phylogeny, Qingdao 266071, Peoples R China 4.Ocean Univ China, Phys Oceanog Lab, Key Lab Marine Chem Theory & Engn, Qingdao Collaborat Innovat Ctr Marine Sci & Techn, Qingdao 266101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Mou, Shanli,Zhang, Zenghu,Zhao, Hanshuang,et al. A dark-tolerant diatom (Chaetoceros) cultured from the deep sea[J]. JOURNAL OF PHYCOLOGY,2022:11. |
| APA | Mou, Shanli.,Zhang, Zenghu.,Zhao, Hanshuang.,Nair, Shailesh.,Li, Yuhang.,...&Zhang, Yongyu.(2022).A dark-tolerant diatom (Chaetoceros) cultured from the deep sea.JOURNAL OF PHYCOLOGY,11. |
| MLA | Mou, Shanli,et al."A dark-tolerant diatom (Chaetoceros) cultured from the deep sea".JOURNAL OF PHYCOLOGY (2022):11. |
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| Journal of Phycology（783KB） | 期刊论文 | 出版稿 | 限制开放 | CC BY-NC-SA | 浏览 | |
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