Effects of temperature, salinity, and irradiance on the growth of harmful algal bloom species Phaeocystis globosa Scherffel (Prymnesiophyceae) isolated from the South China Sea

Xu, Nianjun; Huang, Bo; Hu, Zhangxi; Tang, Yingzhong; Duan, Shunshan; Zhang, Chengwu

doi:10.1007/s00343-017-5352-x

Cited by 29 publications

(14 citation statements)

References 33 publications

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“…The field investigation was conducted in the north Beibu Gulf, where blooms of P. globosa have occurred frequently during both winter and summer in the last decades (Wang et al ., 2010; Xu et al ., 2017). Samples were collected from four sites, ZN1‐2 (N 20.1692, E 108.6187), ZN2‐2 (N 20.5006, E 108.6244), ZN3‐4 (N 20.8183, E 109.3290) and ZN4‐5 (N 21.1744, E 109.6005) (Fig.…”

Section: Methodsmentioning

confidence: 99%

Spatiotemporal dynamics of marine microbial communities following a Phaeocystis bloom: biogeography and co‐occurrence patterns

Song

et al. 2021

Environ Microbiol Rep

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Marine microbes play important roles in the development of phytoplankton blooms. The diversity and composition of free living (FL) and particle attached (PA) microbial communities have been well studied, while little is known about their geographic and cooccurrence patterns, especially during the subsiding process of Phaeocystis globosa blooms. Herein, the beta-diversity of FL and PA microbial communities in both the surface and bottom layers of different habitats were comprehensively examined during succession of a P. globosa bloom event. The results showed that microbial communities from bloom and nonbloom sites exhibited distinct community compositions. Among the different sampling sites, the community similarities decreased with spatial distance, in which the FL communities' similarity in bottom waters was more influenced by spatial variation. The variation of microbial communities was mostly attributed to environmental selection, spatial distance, and the abundance of P. globosa successively. The cooccurrence networks of microbial communities in bloom and non-bloom waters differed in terms of structure and composition, and the bloom network had more links and closer relationships between genera than the non-bloom network. The correlation among genera and modules suggested that the bloom microbes were likely driven by high environmental selection and low competitive effect between each other.

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Section: Methodsmentioning

confidence: 99%

Spatiotemporal dynamics of marine microbial communities following a Phaeocystis bloom: biogeography and co‐occurrence patterns

Song

et al. 2021

Environ Microbiol Rep

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“…Cao et al found that MC could effectively flocculate and settle P. globosa solitary cells and colonies [ 20 ], but the effects of MC on P. globosa cell growth and colony formation remained unclear. As previously mentioned, P. globosa tends to form colonies in resistance to environmental stresses [ 34 , 35 ], and MC presented indirect effects in controlling the growth of HABs [ 29 , 30 , 31 ]. Therefore, we assumed that the growth and colony formation of the remaining cells might be inhibited after MC treatment, which could potentially prevent the P. globosa blooms.…”

Section: Introductionmentioning

confidence: 99%

Effects of Modified Clay on Phaeocystis globosa Growth and Colony Formation

Ren

Qiu

et al. 2021

IJERPH

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Phaeocystis globosa is a globally distributed harmful algal blooms (HABs) species dominated by the colonial morphotype, which presents dramatic environmental hazards and poses a threat to human health. Modified clay (MC) can effectively flocculate HAB organisms and prevent their subsequent growth, but the effects of MC on colony-dominated P. globosa blooms remain uncertain. In this paper, a series of removal and incubation experiments were conducted to investigate the growth, colony formation and colony development of P. globosa cells after treatment with MC. The results show that the density of colonies was higher at MC concentrations below 0.2 g/L compared to those in the control, indicating the role of P. globosa colonies in resistance to environmental stress. Concentrations of MC greater than 0.2 g/L could reduce the density of solitary cells and colonies, and the colony diameter and extracellular polysaccharide (EPS) content were also decreased. The adsorption of MC to dissolved inorganic phosphorus (DIP) and the cell damage caused by collision may be the main mechanisms underlying this phenomenon. These results elucidate that the treatment with an appropriate concentration of MC may provide an effective mitigation strategy for P. globosa blooms by preventing their growth and colony formation.

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“…For decades, blooms of P. globosa have occurred frequently in coastal regions of southern China during both winter and summer, greatly impacting local fishing, farming, and environmental health ( Wang et al, 2006 , 2010 ). Recently, P. globosa blooms have occurred frequently along the Beibu Gulf coast ( Liu et al, 2015 ; Qin et al, 2016 ; Xu et al, 2017 ), a historically important region for the economies of China and Vietnam because of the abundant and diverse marine resources ( Zheng et al, 2012 ). As such, there is a need to understand the impact of algal blooms and the mechanisms of their impact on ecosystem health.…”

Section: Introductionmentioning

confidence: 99%

Phylogenetic Responses of Marine Free-Living Bacterial Community to Phaeocystis globosa Bloom in Beibu Gulf, China

Zhao

Jiang

et al. 2020

Front. Microbiol.

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Phaeocystis globosa blooms are recognized as playing an essential role in shaping the structure of the marine community and its functions in marine ecosystems. In this study, we observed variation in the alpha diversity and composition of marine free-living bacteria during P. globosa blooms and identified key microbial community assembly patterns during the blooms. The results showed that the Shannon index was higher before the blooming of P. globosa in the subtropical bay. Marinobacterium (γ-proteobacteria), Erythrobacter (α-proteobacteria), and Persicobacter (Cytophagales) were defined as the most important genera, and they were more correlated with environmental factors at the terminal stage of P. globosa blooms. Furthermore, different community assembly processes were observed. Both the mean nearest relatedness index (NRI) and nearest taxon index (NTI) revealed the dominance of deterministic factors in the non-blooming and blooming periods of P. globosa, while the bacterial communities in marine waters after the blooms tended to be controlled by stochastic factors. Our findings revealed that the assembly of the bacterial community in marine P. globosa blooms is a complex process with mixture effects of marine microbiomes and environmental parameters.

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Effects of temperature, salinity, and irradiance on the growth of harmful algal bloom species Phaeocystis globosa Scherffel (Prymnesiophyceae) isolated from the South China Sea

Cited by 29 publications

References 33 publications

Spatiotemporal dynamics of marine microbial communities following a Phaeocystis bloom: biogeography and co‐occurrence patterns

Spatiotemporal dynamics of marine microbial communities following a Phaeocystis bloom: biogeography and co‐occurrence patterns

Effects of Modified Clay on Phaeocystis globosa Growth and Colony Formation

Phylogenetic Responses of Marine Free-Living Bacterial Community to Phaeocystis globosa Bloom in Beibu Gulf, China

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