Toxicity of the blue-green alga Oscillatoria agardhii to the mosquito Aedes aegypti and the shrimp Artemia salina

Kiviranta, J.; Abdel-Hameed, A.

doi:10.1007/bf00367656

Cited by 38 publications

(18 citation statements)

References 7 publications

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“…Some antifungal molecules derived from cyanobacteria have been patented for agricultural use, but research on this topic has not been continued (14,21). The insecticidal and nematocidal activity of cyanobacteria is still largely unexplored and only a few studies of this subject have been published (15,28,32). This is true also for their phytotoxic and herbicidal properties (8,13,18); one herbicidal compound, cyanobacterin, from Scytonema hofmanni, has been patented (11) but not commercially developed.…”

mentioning

confidence: 99%

Evaluation ofNostocStrain ATCC 53789 as a Potential Source of Natural Pesticides

Biondi

Piccardi

Margheri

et al. 2004

Appl Environ Microbiol

104

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The cyanobacterium Nostoc strain ATCC 53789, a known cryptophycin producer, was tested for its potential as a source of natural pesticides. The antibacterial, antifungal, insecticidal, nematocidal, and cytotoxic activities of methanolic extracts of the cyanobacterium were evaluated. Among the target organisms, nine fungi (Armillaria sp., Fusarium oxysporum f. sp. melonis, Penicillium expansum, Phytophthora cambivora, P. cinnamomi, Rhizoctonia solani, Rosellinia, sp., Sclerotinia sclerotiorum, and Verticillium albo-atrum) were growth inhibited and one insect (Helicoverpa armigera) was killed by the extract, as well as the two model organisms for nematocidal (Caenorhabditis elegans) and cytotoxic (Artemia salina) activity. No antibacterial activity was detected. The antifungal activity against S. sclerotiorum was further studied with both extracts and biomass of the cyanobacterium in a system involving tomato as a host plant. Finally, the herbicidal activity of Nostoc strain ATCC 53789 was evaluated against a grass mixture. To fully exploit the potential of this cyanobacterium in agriculture as a source of pesticides, suitable application methods to overcome its toxicity toward plants and nontarget organisms must be developed.

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mentioning

confidence: 99%

Evaluation ofNostocStrain ATCC 53789 as a Potential Source of Natural Pesticides

Biondi

Piccardi

Margheri

et al. 2004

Appl Environ Microbiol

104

View full text Add to dashboard Cite

show abstract

“…However, Morohashi et al (1991) did not discuss mortality but Na+ /K+ -ATPase inhibition. The Artemia assays documenting mortality were conducted with crude extracts and likely contained a pool of fatty acids (Kiviranta et al, 1991;Kiviranta and Abdel-Hameed, 1994). Determining the quantity of palmitoleic acid and linoleic acid in these "pools" would be merely speculative.…”

Section: Brine Shrimp Assaymentioning

confidence: 99%

“…Toxicity to unsaturated fatty acids may be arthropod specific considering research done on crustaceans Artemia salina (Morohashi et al, 1991;Kiviranta and Abdel-Hameed, 1994) and Daphnia magna (Reinikainen et al, 2001). …”

Section: Potential Roles Of Unsaturated Fatty Acids In Cyanobacteriamentioning

confidence: 99%

“…Even though no activity occurred with Artemia using (2) and (3), other fatty acids could have been the culprit in the Artermia assays done by Kiviranta and Abdel-Hameed (1994) because they used extracts containing pools of fatty acids. These pools may work synergistically with each other and potentially to other compounds.…”

Section: Potential Roles Of Unsaturated Fatty Acids In Cyanobacteriamentioning

confidence: 99%

“…Harada et al (2000) noted the similarities between the inhibition of Artemia salina and Aedes albopictus by unsaturated fatty acids and had linked the activity with Na+ /K+ -ATPase inhibition referencing Morohashi et al (1991). However, the Artemia assays they discuss involved lyophilized cells and crude extracts as treatments (Kiviranta et al, 1991;Kiviranta and Abdel-Hameed, 1994). These treatments likely contained several fatty acids.…”

Section: Potential Roles Of Unsaturated Fatty Acids In Cyanobacteriamentioning

confidence: 99%

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Mosquito Larvicides from Cyanobacteria

Berry¹

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Insecticidal compounds against mosquito larvae fromOscillatoria agardhii strain 27

et al. 2000

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It was found that Oscillatoria agardhii strain 27 produced compounds toxic against mosquito larvae (Aedes albopictus), therefore, these compounds were extracted and separated for insecticide development. Structural characterization of the toxic fraction by 1H‐NMR and GC‐MS showed that these compounds are not the neurotoxins or hepatotoxins conventionally produced by Oscillatoria, but it contained a mixture of unsaturated fatty acids, oleic, linoleic, and γ‐linolenic acids, as well as saturated fatty acids, myristic, palmitic, and stearic acids. In a bioassay developed for these hydrophobic compounds using mosquito larvae, authentic unsaturated fatty acids were shown to be toxic, whereas saturated ones were not active. The results suggested that it might be possible to use unsaturated fatty acids as environmentally safe and effective insecticides without the side effects of the chemically synthesized insecticides. © 2000 John Wiley & Sons, Inc. Environ Toxicol 15: 114–119, 2000

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Toxicity of the blue-green alga Oscillatoria agardhii to the mosquito Aedes aegypti and the shrimp Artemia salina

Cited by 38 publications

References 7 publications

Evaluation ofNostocStrain ATCC 53789 as a Potential Source of Natural Pesticides

Evaluation ofNostocStrain ATCC 53789 as a Potential Source of Natural Pesticides

Mosquito Larvicides from Cyanobacteria

Insecticidal compounds against mosquito larvae fromOscillatoria agardhii strain 27

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