UTEX B 2677.
Microcystis flos-aquae

Algae Details

UTEX Number: 2677.
Class: Cyanophyceae
Strain: Microcystis flos-aquae
Medium: J Medium (J)
Description of Location:
Type Culture: No
Collection: L.C. Dempsey
Isolation: D. Parker
Isolator Number: UWOCC C3- 40
Deposition: (11/19/97)
Relatives: UTCC 461
Also Known As:
Notes: o Parker from L.C. Dempsey; (D. Parker 6/15/98, pers. Comm.) 38 mol % G+C; polysaccharide slime layer containing (by weight) 83% galacturonic acid and lesser amounts of galactose, glucose, xylose, mannose, and rhamnose, but not detectable protein; coccoid cells; cell diameter = 6-8µm; gas vacuoles; colonies in a copious slime layer with indistinct boundaries and with cells close to the slime boundary; slime layer binds several metal ions; (Dempsey 1977, Fahrenkrug et al. 1992, Parker 1982, Parker et al. 1996, Plude et al. 1991)

Strains that are maintained only in cryopreservation (designated 'cryo only') require a minimum of 4-weeks to grow out before shipment.

Cryopreservation Conditions

Temperature: -190 °C
Storage: Vapor phase of liquid nitrogen dewars

Cryopreservation stabilizes genomic integrity, preserves culture quality, minimizes maintenance costs and reduces the risk of catastrophic loss. A broad variety of techniques employed at the CCAP, at UTEX, and elsewhere, can be found in Day, J.G. and Brand, J.J. Cryopreservation Methods for Maintaining Microalgal Cultures, in Algal Culturing Techniques, ed. R. A. Andersen, Elsevier, Amsterdam, 2006. A relatively simple method that uses a minimum of specialized equipment, yet allows a large variety of microalgae to be cryopreserved with high viability, can be found on the Cryopreservation of Microalgae page.

Preparation of Strains Maintained Only In Cryopreservation For Orders

Strains that are maintained only in cryopreservation (cryo only) require a minimum of 4-weeks to thaw, grow out, and check viability before shipment. An estimated shipping date will be emailed when purchased. Updates via email will be sent if the strain is ready sooner or needs to be delayed further.

One tube of agar or liquid culture constitutes an order for a single culture of a single strain of living algae. UTEX makes no attempt to quantify the number of organisms or other characteristics of the culture. UTEX only guarantees the identity of the organism as specified in the strain history.

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