Cyanobacterial harmful algal blooms are a biological disturbance to Western Lake Erie bacterial communities

Berry, Michelle A.; Davis, Timothy W.; Cory, Rose M.; Duhaime, Melissa B.; Johengen, Thomas H.; Kling, George W.; Marino, John A.; Uyl, Paul A. Den; Gossiaux, Duane C.; Dick, Gregory J.; Denef, Vincent J.

doi:10.1111/1462-2920.13640

Cited by 168 publications

(140 citation statements)

References 69 publications

(84 reference statements)

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“…Despite these limitations, phycosphere community composition remained representative of heterotrophic bacteria associated with blooms of M. aeruginosa . For example, two of the three most abundant heterotrophic taxa across our isolate collection, P. bacilliformis and Cytophagaceae (Table ), are strongly associated with blooms of M. aeruginosa (Tanabe et al, ; Berry, Davis, et al, ). We had hypothesized that the phycosphere could facilitate survival of a streamlined host with atypical nutrient requirements caused by gene loss, for example the loss of key genes for amino acid biosynthesis in LL/LG isolates.…”

Section: Discussionmentioning

confidence: 99%

Genome evolution and host‐microbiome shifts correspond with intraspecific niche divergence within harmful algal bloom‐forming Microcystis aeruginosa

et al. 2019

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Intraspecific niche divergence is an important driver of species range, population abundance and impacts on ecosystem functions. Genetic changes are the primary focus when studying intraspecific divergence; however, the role of ecological interactions, particularly host‐microbiome symbioses, is receiving increased attention. The relative importance of these evolutionary and ecological mechanisms has seen only limited evaluation. To address this question, we used Microcystis aeruginosa, the globally distributed cyanobacterium that dominates freshwater harmful algal blooms. These blooms have been increasing in occurrence and intensity worldwide, causing major economic and ecological damages. We evaluated 46 isolates of M. aeruginosa and their microbiomes, collected from 14 lakes in Michigan, USA, that vary over 20‐fold in phosphorus levels, the primary limiting nutrient in freshwater systems. Genomes of M. aeruginosa diverged along this phosphorus gradient in genomic architecture and protein functions. Fitness in low‐phosphorus lakes corresponded with additional shifts within M. aeruginosa including genome‐wide reductions in nitrogen use, an expansion of phosphorus assimilation genes and an alternative life history strategy of nonclonal colony formation. In addition to host shifts, despite culturing in common‐garden conditions, host‐microbiomes diverged along the gradient in taxonomy, but converged in function with evidence of metabolic interdependence between the host and its microbiome. Divergence corresponded with a physiological trade‐off between fitness in low‐phosphorus environments and growth rate in phosphorus‐rich conditions. Co‐occurrence of genotypes adapted to different nutrient environments in phosphorus‐rich lakes may have critical implications for understanding how M. aeruginosa blooms persist after initial nutrient depletion. Ultimately, we demonstrate that the intertwined effects of genome evolution, host life history strategy and ecological interactions between a host and its microbiome correspond with an intraspecific niche shift with important implications for whole ecosystem function.

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Section: Discussionmentioning

confidence: 99%

Genome evolution and host‐microbiome shifts correspond with intraspecific niche divergence within harmful algal bloom‐forming Microcystis aeruginosa

et al. 2019

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“…Further analyses were carried out in R version 3.2.1 using phyloseq (61), vegan (62), and custom functions written by Michelle Berry (63). All figures were generated using the ggplot2 R package (64).…”

Section: Methodsmentioning

confidence: 99%

Lake Bacterial Assemblage Composition Is Sensitive to Biological Disturbance Caused by an Invasive Filter Feeder

Denef

Carrick

Cavaletto

et al. 2017

mSphere

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Freshwater bacteria play fundamental roles in global elemental cycling and are an intrinsic part of local food webs. Human activities are altering freshwater environments, and much has been learned regarding the sensitivity of bacterial assemblages to a variety of these disturbances. Yet, relatively few studies have focused on how species invasion, which is one of the most important aspects of anthropogenic global change, affects freshwater bacterial assemblages. This study focuses on the impact of invasive dreissenid mussels (IDMs), a globally distributed group of invasive species with large impacts on freshwater phyto- and zooplankton assemblages. We show that IDMs have direct effects on lake bacterioplankton abundance, taxonomic composition, and inferred bacterial functional group representation.

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“…Actinobacteria and Bacteroidetes were induced a sharp decrease and increase crossing the change point along the gradient of the agricultural area. how the cyanobacterial community varied over space and time, and whether the bloom affected non-cyanobacterial (nc-bacterial) diversity and composition [24]. In the study, extracted DNA was amplified using primer set 515f/806r, which targets the V4 hypervariable regions of the 16S rRNA gene.…”

Section: Environmental Variables and The Microbial Community Structuresmentioning

confidence: 99%

“…The most of the lakes examined in this section 4 were associated with this genus. Lake Taihu has experienced Microcystis bloom events for decade, Xie et al [10] and Steffen et al [21] focused their studies on this lake; Cao et al [14] reported that analysis at the genus level of Cyanobacteria identified that Microcystis was among the most abundant genus in the 21 plateau lakes in Yunnan, China; Steffen et al [21] stated that Microcystis-dominated blooms had been observed in the western basin of Lake Erie annually since the 1990s; the study by Berry et al [24] in western Lake Erie also showed that Cyanobacterial community composition fluctuated dynamically during the bloom, but was dominated by Microcystis and Synechococcus OTUs; Tromas et al [25] reported that blooms in their study site (Lake Champlain, North America) tended to be dominated by one or two genera of cyanobacteria: Microcystis or Dolichospermum; in the study of Touzet [19] …”

Section: Microcystis Appears In Most Of the Studies Lakesmentioning

confidence: 99%

Current Trend of Metagenomic Data Analytics for Cyanobacteria Blooms

Huang¹,

Zheng²,

Wang³

2017

GEP

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Cyanobacterial harmful algal blooms are a major threat to freshwater ecosystems globally. To deal with this threat, researches into the cyanobacteria bloom in fresh water lakes and rivers have been carried out all over the world. This review presents an overlook of studies on cyanobacteria blooms. Conventional studies mainly focus on investigating the environmental factors influencing the blooms, with their limitation in lack of viewing the microbial community structures. Metagenomics study provides insight into the internal community structure of the cyanobacteria at the blooming, and there are researchers reported that sequence data was a better predictor than environmental factors. This further manifests the significance of the metagenomic study. However, large number of the latter appears to be confined only to present snapshoot of the microbial community diversity and structure. This type of investigation has been valuable and important, whilst an effort to integrate and coordinate the conventional approaches that largely focus on the environmental factors control, and the Metagenomics approaches that reveals the microbial community structure and diversity, implemented through machine learning techniques, for a holistic and more comprehensive insight into the cause and control of Cyanobacteria blooms, appear to be a trend and challenge of the study of this field.

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Cyanobacterial harmful algal blooms are a biological disturbance to Western Lake Erie bacterial communities

Cited by 168 publications

References 69 publications

Genome evolution and host‐microbiome shifts correspond with intraspecific niche divergence within harmful algal bloom‐forming Microcystis aeruginosa

Genome evolution and host‐microbiome shifts correspond with intraspecific niche divergence within harmful algal bloom‐forming Microcystis aeruginosa

Lake Bacterial Assemblage Composition Is Sensitive to Biological Disturbance Caused by an Invasive Filter Feeder

Current Trend of Metagenomic Data Analytics for Cyanobacteria Blooms

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