UTEX LB 2658
Chaetoceros gracilis

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Algae Details

UTEX Number: 2658
Class: Bacillariophyceae
Strain: Chaetoceros gracilis
Medium: Erdschreiber's Medium (Erd)
Origin: Hawaii, USA
Description of Location: subculture of UTEX LB 2375
Type Culture: No
Isolation: Oceanic Institute
Isolator Number:
Deposition: P. Woodward (2/20/98)
Relatives: UTEX LB 2375 C. gracilis [dec.]; CCMP1316 C. muelleri aka CCMP CHGRA C. gracile; SERI S/CHAET-1
Also Known As: Chaetoceros gracile; Chaetoceros muelleri
Notes: previously treated with antibiotics to reduce contamination problem (P. Woodward 3/30/98, pers. comm.) [Curator's note: the strain known as UTEX LB 2375 [dec.] was deposited 5/84 by D. Drennan; Panama; to Drennan as tropical strain from Hawaii used in shrimp mariculture; 7/9/97 UTEX 2375 was withdrawn from distribution and eventually replaced by UTEX LB 2658]; optimum growth at 28-30 ¡C, lipid composition 20% (SERI 1984); light harvesting pigment proteins, monospecific antibodies (Friedman & Alberte 1987)

General Maintenance Conditions

Temperature: 20 °C
Light source: mix of warm-white & cool-white fluorescent lamps
Intensity: 3200 lux (maximum)
Periodicity: 12/12 h L/D

Those who receive cultures are encouraged to duplicate within reason the conditions used in the Collection, when handling newly acquired cultures, to reduce the chance of losing the culture. After a stock culture is established, subcultures may be used for testing other conditions. These general maintenance conditions are not our recommendations to achieve optimal growth rates and large quantities of algae. Information on the best growth conditions and media must be acquired in other literature or through careful experimentation. For additional details on the long-term culture maintenance conditions utilized at UTEX, visit the Culture Maintenance Guides page.

Preparation of Living Algal Strains For Orders

For liquid cultures, approximately 15 mL aliquots of the stock strain maintained as a liquid culture are transferred to screw-cap tubes on the day of shipment.

Agar and liquid cultures are packaged within a Styrofoam box and shipped the same day they are packaged.

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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