Melatonin promotes dinoflagellate cyst germination by crosstalk with abscisic acid and gibberellin
文献类型：期刊论文
| 作者 | Yue, Caixia1,5; Deng, Yunyan1,4,6; Li, Fengting1,4,6; Chai, Zhaoyang1,4,6; Tao, Zhe1,2,3; Shang, Lixia1,4,6; Tang, Ying Zhong1,4,6 |
| 刊名 | HARMFUL ALGAE
 |
| 出版日期 | 2026 |
| 卷号 | 151页码:10 |
| 关键词 | Abscisic acid (ABA) Cyst germination Dinoflagellate Gibberellic acid 3 (GA3) melatonin (MEL) resting cyst |
| ISSN号 | 1568-9883 |
| DOI | 10.1016/j.hal.2025.103030 |
| 通讯作者 | Deng, Yunyan(yunyandeng@qdio.ac.cn) ; Tang, Ying Zhong() |
| 英文摘要 | Dinoflagellates play pivotal roles in marine ecosystems, particularly as major contributors to marine harmful algal blooms (HABs). Their resting cysts, analogous to higher plant seeds, directly regulate seasonal population dynamics and initiate HABs through germination. The phytohormone Melatonin (MEL) has been widely documented to regulate seed germination in higher plants. This study investigated the effect of exogenously-added MEL on the germination of dinoflagellate resting cyst assemblage isolated from marine sediment and its possible interplay with two other dormancy-related phytohormones (abscisic acid, ABA, and gibberellic acid, GA3) in regulating germination of cysts both from sediment and the representative cyst-producing dinoflagellate Scrippsiella acuminata. Exogenous addition assays revealed that while MEL significantly inhibited cyst germination when concentrations >100 mu M, it enhanced cyst germination dose-dependently within 1.0-8.0 mu M. MEL antagonized ABA in regulating cyst germination and repressing ABA biosynthesis genes but up-regulating ABA catabolic genes. However, MEL synergized with GA3 in promoting germination by enhancing GA biosynthesis and via induction of GA receptor. All results collectively suggest MEL promotes dinoflagellate cyst germination by crosstalk with ABA and GA3, and these phytohormones in protists play roles similar to that in higher plants. Our study provides novel evidences for the regulating roles and mechanisms of MEL. |
| WOS关键词 | SEED DORMANCY ; ARABIDOPSIS ; IDENTIFICATION ; BIOSYNTHESIS ; INDOLEAMINES ; STIMULATION ; DINOPHYCEAE ; EXPRESSION ; ENCYSTMENT ; COMPLEX |
| 资助项目 | National Science Foundation of China[42176207] ; National Science Foundation of China[42376138] ; National Science Foundation of China[42406214] ; Key Deployment Project of the Centre for Ocean Mega-Research of Science, Chinese Academy of Sciences[COMS2019Q09] |
| WOS研究方向 | Marine & Freshwater Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:001626891200002 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/204298]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 通讯作者 | Deng, Yunyan; Tang, Ying Zhong |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, CAS Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China 2.Shandong Marine Resource & Environm Res Inst, Shandong Key Lab Marine Ecol Restorat, Yantai 264006, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Ctr Ocean Mega Sci, Qingdao 266071, Peoples R China 5.Anim Plant & Food Inspection Ctr Nanjing Customs, Nanjing 210000, Peoples R China 6.Qingdao Marine Sci & Technol Ctr, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yue, Caixia,Deng, Yunyan,Li, Fengting,et al. Melatonin promotes dinoflagellate cyst germination by crosstalk with abscisic acid and gibberellin[J]. HARMFUL ALGAE,2026,151:10. |
| APA | Yue, Caixia.,Deng, Yunyan.,Li, Fengting.,Chai, Zhaoyang.,Tao, Zhe.,...&Tang, Ying Zhong.(2026).Melatonin promotes dinoflagellate cyst germination by crosstalk with abscisic acid and gibberellin.HARMFUL ALGAE,151,10. |
| MLA | Yue, Caixia,et al."Melatonin promotes dinoflagellate cyst germination by crosstalk with abscisic acid and gibberellin".HARMFUL ALGAE 151(2026):10. |
入库方式： OAI收割
来源：海洋研究所
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