UTEX LB 2706
Polyphysa exigua

Algae Details

UTEX Number: 2706
Class: Chlorophyceae
Strain: Polyphysa exigua
Medium: Enriched Seawater Medium (ES)
Origin: Madang, New Guinea
Description of Location:
Type Culture: No
Collection: H.G. Schweiger (1971)
Isolator Number:
Deposition: S. Berger (12/6/96)
Relatives: MPI-Zb
Also Known As: Acetabularia exigua (Solms-Laubach, Section Polyphysa); Parvocaulis exigua (Berger 2003)
Notes: (Berger & Kaever 1992); [Curator's note: Berger & Kaever 1992 follow Bailey et al. 1976 in separating Polyphysa and Acetabularia along morphological lines. Alternatively, Silva et al. 1996 (p. 890-4) acknowledge the separation but concomitantly interpret some of the supporting molecular data (Olsen et al. 1994) as reason to invalidate the genus Polyphysa. They conclude that these species represent a genus that cannot be called Polyphysa and suggest recognizing only one genus, i.e., Acetabularia, until the picture is clarified. UTEX has accepted these cultures from the Max-Planck Institute fur Zellbiologie, which adheres to Berger & Kaever 1992 and their identities as shown.]

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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