Comparison of picoeukaryote community structures and their environmental relationships between summer and autumn in the southern Chukchi Sea
| Autor: | Zhongyong Gao, Jianfeng He, Heng Sun, Qiang Hao, Fang Zhang, Haiyan Jin |
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| Rok vydání: | 2021 |
| Předmět: |
0303 health sciences
Water mass Biomass (ecology) Picoeukaryote biology 030306 microbiology Ecology Oceans and Seas Trebouxiophyceae High-Throughput Nucleotide Sequencing General Medicine biology.organism_classification Microbiology Bathycoccus Choricystis 03 medical and health sciences Chlorophyta Molecular Medicine Seawater Seasons 030304 developmental biology Micromonas Dinophyceae |
| Zdroj: | Extremophiles. 25:235-248 |
| ISSN: | 1433-4909 1431-0651 |
| Popis: | Picoeukaryotes constitute an important component of the living biomass of oceanic communities and play major roles in biogeochemical cycles. There are very few studies on picoeukaryotes found in the Chukchi Sea. This work shows the relationship between community distribution and composition of picoeukaryotes residing in water masses and physicochemical factors in the southern Chukchi Sea studied in both midsummer (July) and early autumn (September), 2012. Illumina 18S V4 rDNA metabarcoding were used as the main tool. In July, Mamiellophyceae, Dinophyceae, and Trebouxiophyceae were the main microbial classes, with Micromonas, Prasinoderma, Telonema, Amoebophrya, Bathycoccus, Picomonas, and Bolidomonas representing the main genera. In September, Trebouxiophyceae surpassed Dinophyceae and was the second main microbial class, with Micromonas, Prasinoderma, Bathycoccus, Bolidomonas, Telonema, Choricystis, and Diaphanoeca representing the main genera. Water mass was the primary factor determining the community composition and diversity of picoeukaryotes. Abundance of Bathycoccus was found to be highly correlated with Alaskan Coastal Water and that of Prasinoderma, Bolidomonas, and Diaphanoeca with Bering Seawater. Nitrate and phosphate content of water in midsummer and dissolved oxygen (DO) and temperature in early autumn were the main factors that shaped the abundance of the picoeukaryote community. |
| Databáze: | OpenAIRE |
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