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Anatoxin-a, a toxic alkaloid from Anabaena flos-aquae NRC-44h
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A toxic alkaloid, anatoxin-a, has been isolated from mass cultures of a unialgal clone, NRC-44h, of the freshwater blue-green algae Anabaena flos-aquae (Lyngb.) de Bréb., and its structure determined.
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“The latter toxin may pose a health risk because it is an acetylcholine receptor agonist causing paralysis, muscle contractions, and respiratory failure [36].”
From Application of Arthrospira platensis for Medicinal Purposes and the Food Industry: A Review of the Literature (2023) · cites this paper as [36]
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“…(Sasner et al., 1984; Chorus, 2001), 30–50 for hepatotoxic nodularins (Main et al., 1977; Eriksson et al., 1988), 20–200 for neurotoxic anatoxins (Devlin et al., 1977; Matsunaga et al., 1989; Carmichael, 1997), 50–300 for hepatotoxicmicrocystins (Botes et al., 1982; Dawson, 1998; Chorus,…”
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“These compounds are potent neurotoxins, which cause rapid death due to respiratory arrest (the mouse LD50 is approximately 250 µg/kg) (Devlin et al., 1977).”
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“Anatoxin-a is produced by Anabaena flos-aquae , Aphanizomenon flos-aquae , and Planktothrix ( Oscillatoria ) ( Devlin et al, 1977 ; Sivonen et al, 1989 ; Edwards et al, 1992 ), whereas anatoxin-a(s) is produced by Anabaena flos-aquae and A.”
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“2) was first being described in the 1970s (Devlin et al., 1977).”
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Isolation of cylindrospermopsin from a cyanobacterium Umezakia natans and its screening method
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“Anatoxin-a, wellknown as a “Very Fast Death Factor,” can cause contraction, muscular paralysis, and respiratory arrest leading to death of mice in a very short time after intraperitoneal injection (i.p. mouse LD50: 250 to 375 μg/kg; Devlin et al., 1977).”
BackgroundToxicology and Risk Assessment of Freshwater Cyanobacterial (Blue-Green Algal) Toxins in Water
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“The production of neurotoxins like anatoxin-a has been known for a long time (Gorham, 1964; Devlin et al., 1977 ; Carmichael & Gorham, 1978) but the hepatotoxin producing capacity of A.flos-aquae has been proved only recently by isolation of the toxin (Krishnamurthy et al., 1986).”
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“1) and its methylene homologue homoanatoxin-a (2-(propan-1-oxo-1-yl)-9-azabicyclo[4.2.1]non-2-ene; UV lmax at 230 nm; C11H18NO; EI-MS m/z [M]þ179; Fig.1), are low molecular weight bicyclic secondary amines exclusively produced by cyanobacteria (Devlin et al., 1977; Skulberg et al., 1992).”
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“In addition, anatoxin-a-producing Anabaena strains have commonly been encountered in fresh waters in the United States and Canada (6, 14, 23, 51).”
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“Anatoxin-a was originally found in an isolate of Anabaena Jlos-aquae from Canada (Devlin et al. 1977).”
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“Anatoxin, isolated from a fresh water algae, is a very toxic alkaloid (Devlin et al., 1977).”
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“ATX-a was the first cyanotoxin to be structurally resolved by X-ray crystallography and confirmed by 1H-NMR [72].”
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“mouse) of the pure toxin is 250 #g kg- ' body weight with a survival time of a few minutes (Devlin et al., 1977).”
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“The best-studied examples of cyanobacterial toxins are the neurotoxins; anatoxin-a/saxitoxin (Anabaena flos aquae) [20,21] and the potent hepatotoxin microcystins (Microcystis sp.”
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“Anatoxin-a is an alkaloid compound with potent postsynaptic and depolarizing neuromuscular blockers [32].”
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“In agriculture, the implementation of buffer strips, 50-foot wide strips of grass, reduces nutrient runoff from croplands.(28) A reduction in nutrient runoff may also be achieved by maintaining proper manure storage areas and reducing liquid manure spreading and spreading of manure on hard or frozen soils.”
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“1]non-2-ene [131,132].”
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“Anatoxin–a was originally isolated from Anabaena flos–aquae (Devlin et al. 1977), but is also reported in A.”
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“Anatoxins are not degraded by cholinesterase and consequently continually stimulate muscle cells, causing muscular twitching, fatigue, paralysis and eventually respiratory arrest (Carmichael et al., 1977; Devlin et al., 1977; Stevens and Krieger, 1991).”
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“The latter toxin may pose a health risk because it is an acetylcholine receptor agonist causing paralysis, muscle contractions, and respiratory failure [36].”
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“ene) and its methylene homologue homoanatoxin-a (HANTX) (2-(propan-1-oxo-1-yl)-9-azabicyclo[4.2.1]non- 2-ene) ( Devlin et al., 1977; Skulberg et al., 1992), are lowmolecular-mass bicyclic secondary amines synthesized by some planktonic and benthic strains of the genera Anabaena, Oscillatoria, Aphanizomenon and Cylindr…”
BackgroundInfluentialAnatoxins from clones of Anabaena flos-aquae isolated from lakes of western Canada
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“…flos-aquae, Ana. spiroides, Ana. planctonica, Aphanizomenon flos-aquae, Microcystis aeruginosa, Cylindrospermum sp., Planktothrix agardhii and P. rubescens (Huber 1972, Devlin et al. 1977, Sivonen et al. 1989, Edwards et al. 1992, Skulberg et al. 1992, Park et al. 1993, Rapala et al. 1993).”
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“Anatoxin-a is a neurotoxic alkaloid that inhibits neuromuscular nicotinic acetylcholine receptors by disrupting cellular ion channels, which causes muscle failure and can lead to death [32, 33].”
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Recent advances in the intramolecular Mannich reaction in natural products total synthesis
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“The two pharmacologically most important naturally-occurring homotropane nicotinic agonists are anatoxin-a 1 [9,18] and homoanatoxin 2 [19,20,21] (Figure 1), and these alkaloids, together with their derivatives, form the primary focus of this review.”
BackgroundLiquid chromatography/mass spectrometric detection of anatoxin-a, a neurotoxin from cyanobacteria
Harada, K., Nagai, H., Kimura, Y., Suzuki, M., Park, H.-D., Watanabe, M. F., Luukkainen, R., Sivonen, K., & Carmichael, W. W. (1993) · Tetrahedron · doi:10.1016/0040-4020(93)80011-h · Cited by 81
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Biogenetic Diversity of Cyanobacterial Metabolites
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Synthetic approaches to anatoxin-a
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Widespread anatoxin-a detection in benthic cyanobacterial mats throughout a river network
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Acute effects of an anatoxin-a producing cyanobacterium on juvenile fish—Cyprinus carpio L.
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“Among the neurotoxins, anatoxin-a is one of the most common worldwide, being reported in countries such as Canada (Devlin et al., 1977), USA (Stevens and Krieger, 1991), Scotland (Edwards et al.”
BackgroundEnantioselective synthesis of (+)-anatoxin-a via enyne metathesis
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Metadata
- Authors
- Devlin, J. P., Edwards, O. E., Gorham, P. R., Hunter, N. R., Pike, R. K., & Stavric, B.
- ORCID
- Devlin, J. P.
- Venue
- Canadian Journal of Chemistry
- Publisher
- Canadian Science Publishing
- Published
- 1977-04-15
- Volume
- 55
- Issue
- 8
- Pages
- 1367-1371
- ISSN
- 0008-4042 (ISSN-L)
- 1480-3291
- OpenAlex
- W2015312835
- Cited by
- 378
- References
- 1
- Citations by year
- 2026: 4 · 2025: 7 · 2024: 13 · 2023: 13 · 2022: 11 · 2021: 16 · 2020: 18 · 2019: 14 · 2018: 9 · 2017: 11 · 2016: 19 · 2015: 12 · 2014: 17 · 2013: 12 · 2012: 14
- FWCI
- 3.77
- Type
- journal article
- Language
- en
- Open access
- bronze
- doi.org
- Locations
- Canadian Journal of Chemistry (publishedVersion)
- Topics
- Physical Sciences › Environmental Science › Environmental Chemistry › Aquatic Ecosystems and Phytoplankton Dynamics
- Life Sciences › Immunology and Microbiology › Applied Microbiology and Biotechnology › Microbial Natural Products and Biosynthesis
- Physical Sciences › Environmental Science › Environmental Chemistry › Marine Toxins and Detection Methods
- Keywords
- anatoxin-a, toxic alkaloids, Anabaena flos-aquae, cyanobacteria, structure elucidation, natural product isolation, mass culture
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