The Harmful Cyanobacterium Microcystis aeruginosa Differently Affects the Growth Rate and Photosynthetic Efficiency of Several Species of Marine Phytoplankton

IF 3.6 4区生物学 Q2 ENVIRONMENTAL SCIENCES

Environmental Microbiology Reports Pub Date : 2025-03-28 DOI:10.1111/1758-2229.70091

Na Yun Park, Hyun Soo Choi, Sang Uk Kang, An Suk Lim

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Abstract

Microcystis aeruginosa is a major cyanobacterium that can secrete toxins, such as microcystin, and causes harmful algal blooms. Despite extensive research on the effects of microcystins on other organisms, research on how introduced M. aeruginosa into estuaries affects marine phytoplankton is scarce. In this study, the effect of M. aeruginosa on the growth of seven representative marine phytoplankton species that inhabit estuaries was determined. The marine phytoplankton species differed in their responses to M. aeruginosa; of the seven species, the growth rate of Akashiwo sanguinea was the most affected by M. aeruginosa cells and filtrate. Moreover, our results revealed that M. aeruginosa affected the growth rate and photosynthetic efficiency of A. sanguinea in a density- and time-dependent manner. Our findings suggest that M. aeruginosa may alter the phytoplankton community structure in estuarine ecosystems.

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铜绿微囊藻是一种主要的蓝藻细菌，能分泌毒素（如微囊藻毒素），导致有害藻类大量繁殖。尽管有关微囊藻毒素对其他生物影响的研究非常广泛，但有关引入河口的铜绿微囊藻如何影响海洋浮游植物的研究却很少。本研究确定了铜绿微囊藻对栖息于河口的七种代表性海洋浮游植物生长的影响。这些海洋浮游植物物种对铜绿微囊藻的反应各不相同；在七个物种中，赤小豆的生长速度受铜绿微囊藻细胞和滤液的影响最大。此外，我们的研究结果表明，铜绿微囊藻以密度和时间依赖性的方式影响了赤尾天牛的生长速率和光合效率。我们的研究结果表明，铜绿微囊藻可能会改变河口生态系统的浮游植物群落结构。

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来源期刊

Environmental Microbiology Reports ENVIRONMENTAL SCIENCES-MICROBIOLOGY

CiteScore

6.00

自引率

3.00%

发文量

审稿时长

3.0 months

期刊介绍： The journal is identical in scope to Environmental Microbiology, shares the same editorial team and submission site, and will apply the same high level acceptance criteria. The two journals will be mutually supportive and evolve side-by-side. Environmental Microbiology Reports provides a high profile vehicle for publication of the most innovative, original and rigorous research in the field. The scope of the Journal encompasses the diversity of current research on microbial processes in the environment, microbial communities, interactions and evolution and includes, but is not limited to, the following: the structure, activities and communal behaviour of microbial communities microbial community genetics and evolutionary processes microbial symbioses, microbial interactions and interactions with plants, animals and abiotic factors microbes in the tree of life, microbial diversification and evolution population biology and clonal structure microbial metabolic and structural diversity microbial physiology, growth and survival microbes and surfaces, adhesion and biofouling responses to environmental signals and stress factors modelling and theory development pollution microbiology extremophiles and life in extreme and unusual little-explored habitats element cycles and biogeochemical processes, primary and secondary production microbes in a changing world, microbially-influenced global changes evolution and diversity of archaeal and bacterial viruses new technological developments in microbial ecology and evolution, in particular for the study of activities of microbial communities, non-culturable microorganisms and emerging pathogens.