Algae Express
UTEX 646
Phaeodactylum tricornutum
$ 185.00
Deadline to place an order for Algae Express UTEX 646 Phaeodactylum tricornutum with a 2024 shipment date has passed. New orders will not ship until the 2025 new year—see announcement or order confirmation email for the expected ship date.
Algae Detail
Class: Bacillariophyceae
Strain: Phaeodactylum tricornutum
Media: F/2 Medium
Origin: Segelskär, Finland
Description of Location: no data available
Type Culture: No
Collection: no data available
Isolation: M.R. Droop (1951)
Isolator Number: no data available
Deposition: CCAP (3/55)
Relatives: UTEX 2089; CCAP 1052/6 aka SMBA 14 [Millport 14]; SAG 1090-6; NIBB 3009 aka ORI-B15N, NIBB 3010
Also Known As: Nitzschia closterium f. minutissima aka T-form
Notes: 1974 renamed by J.C. Lewin (pers. Comm.); light harvesting pigment proteins, monospecific antibodies (Friedman & Alberte 1987); guanine metabolism (Allison & Syrett 1987); urea metabolism/nickel & nitrogen deprivation effect (Syrett & Peplinska 1988); antifungal activity (Kellam et al. 1989); lipid content (Yongmanitchae & Ward 1991); (Lewin 1958); In 1974, J.C. Lewin (pers. Comm.) identified some of our Nitzchia cultures as Phaeodactylum [see UTEX 640, 642, 646 & 2089] with the following explanation: "Oval cells of Phaeodactylum occur in cultures kept on agar. There is a gradual transformation back to the fusiform state, after oval cells are inoculated into liquid medium. Sometimes, people who don't know about this unusual life style may end up being fooled."
View the Non-Algae Express version ($125 USD) here.
☰Algae Express Service
Algae Express orders are only available to ship within the continental United States via UPS Next Day Air. Ordering deadlines for this service are Monday-Thursday (excluding U.S. Holidays) between 8:00 AM - 12:00 PM (Noon) CST. Orders placed on Fridays will not ship out until the next available business day. Algae Express is currently not available for international orders and U.S. customers outside of the contiguous United States. UTEX continues to look into expanding the availability of this service to our customers outside of the continental United States. Sign up for our newsletter to stay informed on any new products, services, and educational opportunities.
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.
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