首页|Dynamics of Haptophytes(Eukaryota,Hacrobia)Revealed via Short-Term Sampling in the South China Sea

Dynamics of Haptophytes(Eukaryota,Hacrobia)Revealed via Short-Term Sampling in the South China Sea

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
Haptophytes(Eukaryota,Hacrobia)play a crucial role in the energy budget and element cycling of diverse aquatic eco-systems due to their ability to engage in both phototrophic and mixotrophic nutritional modes.Nevertheless,there is a significant lack of knowledge regarding the short-term variations,such as diel dynamics,of their ecological features.During a short time frame in the summer of 2018,samples were collected from three distinct water layers in the South China Sea,including surface water,the deep chlorophyll maximum(DCM)layer,and 200 m depth.Fluorescence in situ hybridization coupled with tyramide signal amplification was used to quantify haptophyte cell abundance.Most haptophyte communities in all three water layers were composed of cells 2-5 µm in size,while the proportion of cells<2 µm increased with water depth.High-throughput sequencing of the V4 hypervariable regions of the SSU rRNA revealed that Chrysochromulina and Phaeocystis predominated the community,and the former was more abundant in the surface water and 200 m depth and the latter was more abundant in the DCM layer.Higher abundance of small cells(<2 µm and 2-5 µm)during the night was found compared to the day time,whereas large cells(5-10 µm and 10-20 µm)were more prevalent du-ring the day time.The results of correlation analyses showed that haptophyte abundance was possibly impacted by both environmen-tal biotic(heterotrophic nanoflagellates,heterotrophic bacteria,and viruses)and abiotic(temperature,salinity,and nutrients)factors.

eukaryotic phytoplanktonFISH-TSAhigh-throughput sequencingmicrobial eukaryotessize fraction

ZHANG Haoyue、LI Ran、GU Bowei、KONG Hejun、XU Jie、ZHANG Rui、LI Xiaolin、JIAO Nianzhi、XU Dapeng

展开 >

College of Ocean and Earth Sciences,State Key Laboratory of Marine Environmental Science,Xiamen University,Xiamen 361102,China

Institute of Marine Microbes and Ecospheres,Fujian Key Laboratory of Marine Carbon Sequestration,Xiamen University,Xiamen 361102,China

Centre for Regional Oceans,Department of Ocean Science and Technology,Faculty of Science and Technology,Uni-versity of Macau,Macau 999078,China

Institute for Advanced Study,Shenzhen University,Shenzhen 518060,China

展开 >

2024

10.1007/s11802-024-5984-3

中国海洋大学学报(自然科学英文版)
中国海洋大学

中国海洋大学学报(自然科学英文版)

CSTPCD
影响因子：0.268
ISSN：1672-5182
年,卷(期)：2024.23(6)