| 摘要: |
| 海洋无脊椎动物广泛分布于海洋生态系统, 在海洋生物入侵与污损(藤壶、海鞘等)、海洋渔业或水产养殖(海参、牡蛎等)、海洋生态系统修复(珊瑚等)等海洋生态环境和海洋经济领域发挥着重要的生态功能。许多海洋无脊椎动物在浮游幼虫时期具备“感受态”阶段, 在感知外界诱导信号后进行附着变态。环境化学信号种类丰富且易于扩散, 在幼虫附着变态过程中发挥着关键作用。海洋无脊椎动物幼虫通过识别海水中的化学信号, 选择适宜的附着环境完成变态, 进而实现个体生长和种群扩张。本文主要综述了近年来多种海洋无脊椎动物幼虫附着变态过程中化学信号诱导作用的研究进展。从外界影响因素及内在生理过程层面, 阐述了幼虫化学感知系统的基本特征; 列举了多种生物学前沿技术在幼虫化学感知研究中的应用情况; 并对未来研究方向与应用前景进行了展望。本文深化了对化学信号诱导海洋无脊椎动物幼虫附着变态机制的理解, 为生物污损防治、水产养殖以及海洋环境保护提供了科学依据和实践指导。 |
| 关键词: 海洋无脊椎动物幼虫 附着变态 化学感知 环境适应 海洋生态系统 |
| DOI：10.11759/hykx20250210001 |
| 分类号:P735 |
| 基金项目:国家重点研发计划“海洋农业与淡水渔业科技创新”重点专项资助(2022YFD2401201); 国家自然科学基金青年科学基金项目(42206090) |
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| Chemical sensing during substrate attachment and metamorphosis in marine invertebrate larvae |
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QIN Qishu1, DONG Bo1,2, YANG Likun1,2
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1.College of Marine Life Sciences, Ocean University of China, Qingdao 266003, China;2.Institute of Evolution Marine Biodiversity, Ocean University of China, Qingdao 266003, China
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| Abstract: |
| Marine invertebrates are widely distributed throughout aquatic ecosystems and play crucial ecological roles regarding various aspects such as marine biological invasion and fouling (e.g., barnacles and Ascidians), marine fisheries or aquaculture (e.g., sea cucumbers and oysters), and marine ecosystem restoration (e.g., corals). The planktonic larvae of many marine invertebrates exhibit a “Metamorphic Competence” stage, in which they attach and metamorphose in response to external inducing signals. Environmental chemical signals are diverse and easily dispersible, playing a significant role during larval settlement and metamorphosis. By detecting chemical cues occurring in seawater, larvae locate suitable attachment sites to complete their metamorphosis, leading to individual and population growth. This paper mainly reviews the recent research progress on the role of chemical signal induction during the attachment and metamorphosis of various marine invertebrate larvae. It discusses the fundamental characteristics of chemical sensing systems in larvae from the perspectives of external environmental factors and internal physiological processes. It also summarizes the advanced biological technologies that can be applied to studying larval chemoperception and explores future research directions and potential applications. The article deepens our understanding of the mechanisms underlying chemical signal-induced substrate attachment and metamorphosis in marine invertebrate larvae, providing scientific evidence and practical guidance for biofouling control, aquaculture management, and marine environmental protection. |
| Key words: marine invertebrate larvae settlement and metamorphosis chemoperception environmental adaptation marine ecological systems |
