School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, China.
School of Marine Sciences, Sun Yat-sen University, Zhuhai, 519082, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, 519000, China; Guangdong Provincial Key Laboratory of Marine Resources and Coastal Engineering, Zhuhai, 519082, China; Pearl River Estuary Marine Ecosystem Research Station, Ministry of Education, Zhuhai, 519082, China.
Mar Environ Res. 2023 Oct;191:106177. doi: 10.1016/j.marenvres.2023.106177. Epub 2023 Sep 18.
Oceans cover over 71% of the Earth's surface and play crucial roles in regulating the global climate. In the marine boundary layer, the levels of volatile organic compounds (VOCs) have been shown to have positive relations with the marine algal biomass, indicating that the marine biological activities can be an important biogenic VOCs (BVOCs) source. The emitted BVOCs will enhance the formation of secondary organic aerosols, and perturb the radiative forcing, which ultimately affects the climate. To date, knowledge on the emission processes (i.e., synthesis processes and emission rates) of BVOCs from marine phytoplankton is still lacking compared to the more well-known BVOCs released from terrestrial plants. In this review, we focus on the BVOCs emissions from the marine phytoplankton. Based on the available literature from field and laboratory studies, we listed the types of BVOCs being emitted by different marine phytoplankton species, summarized the diversity of BVOCs related to phytoplankton taxonomy and physiology and abiotic factors affecting their emissions in various marine environments, and discussed the biosynthesis and ecological function of important marine VOCs such as DMS, terpenoids and VHCs from phytoplankton. Finally, we highlighted the existing gaps in the current knowledge and the needs of future study for better understanding the physiological and ecological roles of BVOCs emission from marine phytoplankton.
海洋覆盖了地球表面的 71%以上，在调节全球气候方面发挥着关键作用。在海洋边界层中，挥发性有机化合物 (VOCs) 的水平与海洋藻类生物量呈正相关，这表明海洋生物活动可能是重要的生物源挥发性有机化合物 (BVOCs) 源。排放的 BVOCs 将增强二次有机气溶胶的形成，并扰乱辐射强迫，最终影响气候。迄今为止，与更为人熟知的陆地植物释放的 BVOCs 相比，人们对海洋浮游植物释放的 BVOCs 的排放过程（即合成过程和排放速率）的了解仍然不足。在这篇综述中，我们重点介绍了海洋浮游植物的 BVOCs 排放。根据来自野外和实验室研究的现有文献，我们列出了不同海洋浮游植物物种排放的 BVOCs 类型，总结了与浮游植物分类学和生理学以及影响它们在各种海洋环境中排放的非生物因素有关的 BVOCs 的多样性，并讨论了重要海洋 VOCs 的生物合成和生态功能，如 DMS、萜类化合物和 VHCs 从浮游植物中。最后，我们强调了当前知识中的现有差距以及未来研究的需求，以更好地了解海洋浮游植物 BVOCs 排放的生理和生态作用。
