Erratum: Amazoninema gen. nov., (Synechococcales, Pseudanabaenaceae) a novel cyanobacteria genus from Brazilian Amazonian rivers

Genuário, Diego Bonaldo; Souza, Wallace Rafael de; Anna, Célia Leite Sant'; Monteiro, Regina Teresa Rosim; Melo, I. S. de

doi:10.1099/ijsem.0.003849

Cited by 5 publications

(2 citation statements)

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“…Since the cyanobacterial strains in the sampled material were not abundant, this first step stimulated their growth. Cycloheximide inhibits eukaryote growth, such as green algae, diatoms, or fungi (Genuario et al, 2018). Successive streaking onto fresh BG11 solid medium, direct manual isolation by micro‐pipetting and microscopic observations was applied until a monospecific culture was established and identified.…”

Section: Methodsmentioning

confidence: 99%

Assessment of nitrogen interaction with temperature on the growth and toxin production of mat-forming toxin-producing Anagnostidinema carotinosum

Anam

Govarthanan

Ahn

2022

Journal of Applied Microbiology

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Aims: Global warming and eutrophication contribute to the severity of cyanobacteria blooms. However, it is unclear how these factors influence the growth and toxin production of Anagnostidinema carotinosum. Methods and Results:Based on morphological and molecular analysis, this is the first time A. carotinosum was identified in South Korea. The interactive effect of temperature (25, 30 or 34°C) and nitrogen (2.5, 3.5 or 4.5 mg NO 3 -N l −1 ) on A. carotinosum growth and toxin production was studied. Increasing nitrogen limitation reflects reduced growth and chlorophyll-a content at all temperatures. However, the growth was effective under nitrogen limitation when temperatures exceeded 25°C. The maximum growth was found at 30°C, followed by 34°C under higher nitrate levels (3.5 and 4.5 mg l −1 ). In addition, the cell microcystin and anatoxin-a quota increased significantly at 25°C with increasing nitrate limitation, decreasing considerably at 30°C in the same nitrate gradient. Conclusion:These results suggested temperatures stimulate A. carotinosum growth at 30 and 34°C and cellular toxin quota at 25 and 34°C with increasing NO 3 -N levels.Significance and Impact of the Study: These findings imply that limiting nitrogen input alone can effectively reduce biomass; however, controlling A. carotinosum and its toxins at higher temperatures under nitrate limitation is necessary for water quality.

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Section: Methodsmentioning

confidence: 99%

Assessment of nitrogen interaction with temperature on the growth and toxin production of mat-forming toxin-producing Anagnostidinema carotinosum

Anam

Govarthanan

Ahn

2022

Journal of Applied Microbiology

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“…2018, Genuario et al. 2020). Besides the phylogeny based on molecular markers (mainly 16S rRNA gene sequences), environmental, morphological, and physiological data should be applied together targeting autapomorphies to define genera and to describe novel species (Casamatta et al.…”

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confidence: 98%

Monilinema gen. nov., a homocytous genus (Cyanobacteria, Leptolyngbyaceae) from saline–alkaline lakes of Pantanal wetlands, Brazil

Malone

Genuário

Vaz

et al. 2020

Journal of Phycology

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Cyanobacteria morphotypes with simple morphology, mainly thin filamentous homocytous strains, comprise a taxonomically complex group and represent a challenge in systematic studies. However, the polyphasic approach applied nowadays to investigate the cyanobacterial diversity has emerged as a powerful tool to undercover cryptic taxa and to set up a more natural classification system. Yet, studies exploring the cultured diversity of cyanobacteria from extreme tropical environments have paved the way to the discovery of new cyanobacteria taxa, enabling the description of Pantanalinema, Alkalinema, and Cephalothrix as novel genera from saline–alkaline lakes in Pantanal wetlands (Brazil). The present study investigated a set of cyanobacterial strains resembling Leptolyngbya morphotypes by means of its morphology, 16S ribosomal RNA (16S rRNA) phylogeny, and ITS secondary structures. Based on the shape and structure of their trichomes, the low levels of 16S rRNA identity coupled with the distinct phylogenetic position with regard to well establish genera, and their divergent ecological feature, these strains must be accommodated into a novel genus, named as Monilinema gen. nov., described under the provisions of the International Code of Nomenclature for algae, fungi, and plants. Accordingly, based on the singularity of the D1–D1′ and V3 helixes, these strains should be considered as a single species, Monilinema alkalinum.

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Recent trends of polyphasic approach in taxonomy and cyanobacterial diversity

Perona

Muñoz-Martín

Gómez

2022

Expanding Horizon of Cyanobacterial Biology

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Erratum: Amazoninema gen. nov., (Synechococcales, Pseudanabaenaceae) a novel cyanobacteria genus from Brazilian Amazonian rivers

Cited by 5 publications

References 0 publications

Assessment of nitrogen interaction with temperature on the growth and toxin production of mat-forming toxin-producing Anagnostidinema carotinosum

Assessment of nitrogen interaction with temperature on the growth and toxin production of mat-forming toxin-producing Anagnostidinema carotinosum

Monilinema gen. nov., a homocytous genus (Cyanobacteria, Leptolyngbyaceae) from saline–alkaline lakes of Pantanal wetlands, Brazil

Recent trends of polyphasic approach in taxonomy and cyanobacterial diversity

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