Toxic Algae in Inland Waters of the Conterminous United States—A Review and Synthesis

Patiño, Reynaldo; Christensen, Victoria G.; Graham, Jennifer L.; Rogosch, Jane S.; Rosen, Barry H.

doi:10.3390/w15152808

Cited by 9 publications

(5 citation statements)

References 276 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Leachate, on the other hand, is easier and less costly to prepare. It should be mentioned that giant reed leachate impairs growth of not only P. parvum (present study) but also the cyanobacterium M. aeruginosa [16], two of the most important HAB species found in inland waters [6]. Growth of the harmful marine dinoflagellate K. brevis can be suppressed with a pyrolytic extract of giant reed [19], but the effects of leachate on this species are unknown.…”

Section: Discussionmentioning

confidence: 73%

“…A major driver of these trends is the cultural eutrophication of aquatic habitats caused by inputs of nutrients from agricultural and developed lands [4,5]. Prymnesium parvum is an HAB-forming member of the phylum Haptophyta that is found in brackish waters worldwide and whose toxins can be lethal to aquatic organisms including fishes, amphibians, crustaceans, shellfish, and other algae [6]. Although P. parvum is responsible for some of the worst HAB-associated ecological catastrophes in inland waters [6], field methods to control its blooms are presently unavailable.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Plant-Derived Products Selectively Suppress Growth of the Harmful Alga Prymnesium parvum

Mary,

Tábora-Sarmiento,

Nash

et al. 2024

Water

Self Cite

View full text Add to dashboard Cite

Prymnesium parvum is a harmful alga found in brackish waters worldwide whose toxins can be lethal to aquatic organisms. Established field methods to control blooms of this species, however, are unavailable. Earlier studies showed that various extracts of giant reed (Arundo donax) can suppress P. parvum growth and that ellipticine, an allelochemical present in giant reed, is a potent algicide against this species. The unintended effects of giant reed products on nontarget organisms, however, are not fully understood. This study determined the effects of giant reed leachate (aqueous extract of dried chips) and ellipticine on growth of P. parvum and the green microalga Chlorella sorokiniana; survival and reproduction of the planktonic crustacean Daphnia pulex; and hatching success, larval survival, and larval swimming behavior of the teleost fish Danio rerio. Leachate made with 3 g chips L−1 was lethally toxic to P. parvum and D. pulex, stimulated C. sorokiniana growth, and impaired D. rerio behavior. Leachate at 1 g L−1 fully suppressed P. parvum growth, had moderate effects on D. pulex reproductive output, and had no effects on D. rerio. Ellipticine at 0.01 mg L−1 irreversibly inhibited P. parvum growth, acutely but reversibly inhibited C. sorokiniana growth, slightly delayed D. pulex reproduction, and had no effects on D. rerio. These observations suggest that when applied at appropriate concentrations, natural products derived from giant reed can be used as tools to specifically control P. parvum growth with minimal effects on nontarget species.

show abstract

Section: Discussionmentioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Plant-Derived Products Selectively Suppress Growth of the Harmful Alga Prymnesium parvum

Mary,

Tábora-Sarmiento,

Nash

et al. 2024

Water

Self Cite

View full text Add to dashboard Cite

show abstract

“…In this study, HCBs caused by STX-producing cyanobacteria in urban lakes, employing the qPCR assay based on the sxtA gene, were assessed. It is important to highlight that concentrations of MC observed during HCB are generally high, ranging from 1 µg/L to over 100 µg/L, in contrast to the comparatively lower concentrations of STX [ 33 , 34 ]. Despite this discrepancy, a strong correlation between qPCR and STX concentration was observed in Big 11 Lake, which recorded the highest concentration of 0.85 µg/L.…”

Section: Discussionmentioning

confidence: 99%

Spatial and Temporal Variability of Saxitoxin-Producing Cyanobacteria in U.S. Urban Lakes

Jeon,

Struewing,

McIntosh

et al. 2024

Toxins

View full text Add to dashboard Cite

Harmful cyanobacterial blooms (HCBs) are of growing global concern due to their production of toxic compounds, which threaten ecosystems and human health. Saxitoxins (STXs), commonly known as paralytic shellfish poison, are a neurotoxic alkaloid produced by some cyanobacteria. Although many field studies indicate a widespread distribution of STX, it is understudied relative to other cyanotoxins such as microcystins (MCs). In this study, we assessed eleven U.S. urban lakes using qPCR, sxtA gene-targeting sequencing, and 16S rRNA gene sequencing to understand the spatio-temporal variations in cyanobacteria and their potential role in STX production. During the blooms, qPCR analysis confirmed the presence of the STX-encoding gene sxtA at all lakes. In particular, the abundance of the sxtA gene had a strong positive correlation with STX concentrations in Big 11 Lake in Kansas City, which was also the site with the highest quantified STX concentration. Sequencing analysis revealed that potential STX producers, such as Aphanizomenon, Dolichospermum, and Raphidiopsis, were present. Further analysis targeting amplicons of the sxtA gene identified that Aphanizomenon and/or Dolichospermum are the primary STX producer, showing a significant correlation with sxtA gene abundances and STX concentrations. In addition, Aphanizomenon was associated with environmental factors, such as conductivity, sulfate, and orthophosphate, whereas Dolichospermum was correlated with temperature and pH. Overall, the results herein enhance our understanding of the STX-producing cyanobacteria and aid in developing strategies to control HCBs.

show abstract

“…Most interestingly, less common algal groups, such as the haptophyte Prymnesium parvum and the euglenoid Euglena sanguinea, are also capable of producing harmful algal blooms (HABs), whose toxins dangerously affect aquatic biota but do not show effects on human health. The species Prymnesium parvum was described as being responsible for some of the worst HAB-related ecological disasters occurring in inland waters [87]. Also, avian wildlife in both freshwater and marine ecosystems is heavily affected by HABs and related toxins.…”

Section: Ecotoxicity Of Algal Blooms and Related Toxinsmentioning

confidence: 99%

Algae in Recreational Waters: An Overview within a One Health Perspective

Valeriani,

Carraturo,

Lofrano

et al. 2024

Water

View full text Add to dashboard Cite

Recreational water activities are widely recognized to have a positive impact on our physical and mental well-being. However, recreational water sources and their management are also a risk factor for human health due to different agents, including the overgrowth of cyanobacteria and algae. The presence of cyanobacteria and algae in recreational waters represents a One Health threat because of their potential release and the overuse of biocides. These organisms have the potential to metabolize organic matter and produce thermophilic and thermotolerant toxins. Moreover, different species of algae are involved in biofilm formation processes, thus impacting water quality and safety and also posing risks to the environment and animal and human health. Different species of algae participate in biofilm formation and have an impact on managing water and equipment maintenance. By searching literature databases, e.g., PubMed, we reviewed the state of the art, providing basic definitions, taxonomy, and epidemiological or medical issues related to the recreational uses of water. Methods of treatments and monitoring were summarized, considering both traditional and innovative strategies. Public health and surveillance approaches focus on the detection of toxins, the formation of biofilms, and the understanding of the benthonic and planktonic components as part of the larger microbial biodiversity. The review process allowed us to acknowledge that this is the first comprehensive overview of algae in recreational waters carried out within a wider One Health outlook.

show abstract

Toxic Algae in Inland Waters of the Conterminous United States—A Review and Synthesis

Cited by 9 publications

References 276 publications

Plant-Derived Products Selectively Suppress Growth of the Harmful Alga Prymnesium parvum

Plant-Derived Products Selectively Suppress Growth of the Harmful Alga Prymnesium parvum

Spatial and Temporal Variability of Saxitoxin-Producing Cyanobacteria in U.S. Urban Lakes

Algae in Recreational Waters: An Overview within a One Health Perspective

Contact Info

Product

Resources

About