Proliferation and anatoxin production of benthic cyanobacteria associated with canine mortalities along a stream-lake continuum

Johnston, Lindsay H.; Huang, Yannan; Bermarija, Tessa D.; Rafuse, Cheryl; Zamlynny, Lydia; Bruce, Meghann R.; Graham, Catherine; Comeau, André M.; Valadez-Cano, Cecilio; Lawrence, Janice E.; Beach, Daniel G.; Jamieson, Rob C.

doi:10.1016/j.scitotenv.2024.170476

Science of The Total Environment

2024

DOI: 10.1016/j.scitotenv.2024.170476

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Proliferation and anatoxin production of benthic cyanobacteria associated with canine mortalities along a stream-lake continuum

Lindsay H. Johnston,

Yannan Huang,

Tessa D. Bermarija

et al.

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Cited by 3 publications

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Multi–class cyanobacterial toxin analysis using hydrophilic interaction liquid chromatography–mass spectrometry

Thomas,

Wright,

Beach

et al. 2024

Journal of Chromatography A

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Multi–class cyanobacterial toxin analysis using hydrophilic interaction liquid chromatography–mass spectrometry

Thomas,

Wright,

Beach

et al. 2024

Journal of Chromatography A

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Early Detection Methods for Toxic Cyanobacteria Blooms

Grant,

Botelho,

Rehman

2024

Pathogens

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Harmful cyanobacterial blooms produce cyanotoxins which can adversely affect humans and animals. Without proper monitoring and detection programs, tragedies such as the loss of pets or worse are possible. Multiple factors including rising temperatures and human influence contribute to the increased likelihood of harmful cyanobacteria blooms. Current approaches to monitoring cyanobacteria and their toxins include microscopic methods, immunoassays, liquid chromatography coupled with mass spectrometry (LCMS), molecular methods such as qPCR, satellite monitoring, and, more recently, machine learning models. This review highlights current research into early detection methods for harmful cyanobacterial blooms and the pros and cons of these methods.

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Benthic Microbes on the Shore of Southern Lake Taihu Exhibit Ecological Significance and Toxin-Producing Potential Through Comparison with Planktonic Microbes

Zhao,

Wu,

Zuo

et al. 2024

Water

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Water quality and aquatic ecosystems along lakeshores are vital for ecological balance and human well-being. However, research has primarily focused on plankton, with benthic niches being largely overlooked. To enhance understanding of benthic microbial communities, we utilized 16S and 18S rRNA sequencing alongside multivariate statistical methods to analyze samples from the shoreline of Lake Taihu in Huzhou City, Zhejiang Province. Our results reveal a marked difference in species composition between benthic and planktonic microorganisms, with benthic cyanobacteria predominantly comprising filamentous genera like Tychonema, while 95% of planktonic cyanobacteria were Cyanobium. The β-diversity of benthic microorganisms was notably higher than that of planktonic counterparts. The neutral community model indicated that stochastic processes dominated planktonic microbial assembly, while deterministic processes prevailed in benthic communities. Null models showed that homogeneous selection influenced benthic community assembly, whereas planktonic communities were affected by undominated processes and dispersal limitation. Network analysis indicated that planktonic networks were more stable than benthic networks. Importantly, dominant benthic cyanobacterial genera posed potential toxin risks, highlighting the need for enhanced monitoring and ecological risk assessment. Overall, these findings enhance our understanding of benthic and planktonic microbial communities in lakeshores and offer valuable insights for aquatic assessment and management in eutrophicated environments.

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Proliferation and anatoxin production of benthic cyanobacteria associated with canine mortalities along a stream-lake continuum

Cited by 3 publications

References 59 publications

Multi–class cyanobacterial toxin analysis using hydrophilic interaction liquid chromatography–mass spectrometry

Multi–class cyanobacterial toxin analysis using hydrophilic interaction liquid chromatography–mass spectrometry

Early Detection Methods for Toxic Cyanobacteria Blooms

Benthic Microbes on the Shore of Southern Lake Taihu Exhibit Ecological Significance and Toxin-Producing Potential Through Comparison with Planktonic Microbes

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