• Planktothrix agardhii
References [ 7 ]
Christiansen G, Kurmayer R, Liu Q & Börner T (2006) Transposons inactivate biosynthesis of the nonribosomal peptide microcystin in naturally occurring Planktothrix spp. Applied and Environmental Microbiology 72: 1-7.
Kurmayer R, Christiansen G, Fastner J & Börner T (2004) Abundance of active and inactive microcystin genotypes in populations of the toxic cyanobacterium Planktothrix spp. Environmental Microbiology 6: 831-841.
Suda S, Watanabe MM, Otsuka S, Mahakahant A, Yongmanitchai W, Nopartnaraporn N, Liu YD & Day JG (2002) Taxonomic revision of water-bloom-forming species of oscillatorioid cyanobacteria. International Journal of Systematic and Evolutionary Microbiology 52: 1577-1595.
Kosol S, Schmidt J & Kurmayer R (2009) Variation in peptide net production and growth among strains of the toxic cyanobacterium Planktothrix spp. European Journal of Phycology 44(1): 49-62.
Christiansen G, Molitor C, Philmus B & Kurmayer R (2008) Nontoxic strains of cyanobacteria are the result of major gene deletion events induced by a transposable element. Molecular Biology and Evolution 25: 1695-1704.
Griffiths AE, Walsby AE & Hayes PK (1992) The homologies of gas vesicle proteins Journal of General Microbiology 138: 1243-1250.
Beard SJ, Davis PA, Iglesias-Rodriguez D, Skulberg OM & Walsby AE (2000) Gas vesicle genes in Planktothrix spp. from Nordic lakes: Strains with weak gas vesicles possess a longer variant of gvpC. Microbiology 146: 2009-2018.
DOI: none
Sequences [ 7 ]
EMBL/Genbank Links
(Bold text = submission by CCAP staff or collaborators)
Division/Phylum: Cyanophyta Class: Cyanophyceae Order: Oscillatoriales

Note: for strains where we have DNA barcodes we can be reasonably confident of identity, however for those not yet sequenced we rely on morphology and the original identification, usually made by the depositor. Although CCAP makes every effort to ensure the correct taxonomic identity of strains, we cannot guarantee that a strain is correctly identified at the species, genus or class levels. On this basis users are responsible for confirming the identity of the strain(s) they receive from us on arrival before starting experiments.
For strain taxonomy we generally use AlgaeBase for algae and Adl et al. (2019) for protists.

Culture media, purity and growth conditions:
Medium: BG11; Bacteria present; maintained by serial subculture;
Attributes
Authority(Gomont) Anagnostidis & Komarek 1988
IsolatorO.M.Skulberg
Collection Site Lake Gjersjøen, Norway
Notes uniseriate filament (one cell wide); This is a slow growing strain, it forms aggregations of filaments. For faster growth or/and a more planktonic form, try CCAP 1459/16 or CCAP 1459/17; LC-MS analysis by RGU in 2021 for cylindrospermopsins, microcystins and anatoxins: None Detected.
Axenicity Status Bacteria present
Area Europe
Country Norway
Environment Freshwater
GMO No
Group Cyanobacteria
Original Designation CYA 29
Pathogen Not pathogenic: Hazard Class 1
Strain Maintenance Sheet SM_FreshwaterCyanobacteria.pdf
Toxin Producer Not Toxic / No Data
Type Culture No
Taxonomy WoRMS ID 146552
Formerly Listed in CCAP asOscillatoria agardhii (Jurgens) Gomont 1892

CCAP 1459/36

Planktothrix agardhii


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