Zooming in microbiome dynamics for short and intensive observation (replace) during Akashiwo sanguinea (Dinophyta) blooms

Title
Zooming in microbiome dynamics for short and intensive observation (replace) during Akashiwo sanguinea (Dinophyta) blooms
Author(s)
강준수; 김현정; 이택견; 정승원
KIOST Author(s)
Kang, Junsu(강준수)Kim, Hyun Jung(김현정)Lee, Taek Kyun(이택견)Jung, Seung Won(정승원)
Publication Year
2019-10-24
Abstract
To understand micro-ecosystem changes during harmful algal blooms (HABs), we examined the variability of micro-environments and microbiome (virus to plankton) through short and intensive investigation during Akashiwo sanguinea blooms in Jangmok coastal waters of South Korea by metagenomics. The exudation of extracellular polymeric substances (EPS) by A. sanguinea markedly changed bio-geochemical cycles (in particular phosphorus and carbon sources). In A. sanguinea-associatedbacteria communities, Rickettsia rhipicephali and Polaribacter marinivivus positively affect the HABs, while Amylibacter ulvae, Mesonia algae, and Luminiphilus syltensis negatively affect the HABs. An endoparasitic Amoebophrya sp., may importantly control bloom dynamics, as increase in their abundance lagged the HABs decline. In the dsDNA viruses, Pandoraviridae increased following increases in the HABs peaks, but Phycodnaviridae might not infect A. sanguinea. Thus, A. sanguinea blooms dramatically change the micro-ecosystem through their efficient autotrophic processes and exudation of EPS, followed by changes in the microbiome involving species-specific viruses, bacteria, and parasitoids
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/22216
Bibliographic Citation
PICES, pp.73, 2019
Publisher
The North Pacific Marine Science Organization(PICES)
Type
Conference
Language
English
Publisher
The North Pacific Marine Science Organization(PICES)
Related Researcher
Research Interests

Phytoplatnkon taxonomy,Phytoplatnkon physiology,Phycosphere,식물플랑크톤 분류,식물플랑크톤 생리,식물플랑크톤, 바이러스, 박테리아 관계

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