Menu
Algae Research Supply
0
  • How to Grow
    • Choose your culture
    • Supplies
    • Start your project
    • Harvesting
    • Troubleshooting
  • Organisms
  • Lesson
  • Resources
    • Encyclopedia Aquatica
    • Interviews
    • Videos
    • Glossary
    • Phenomenon
    • FAQ
  • Shop
  • About Us
  • Reef Ecosystems
  • Porphose
  • Sign in
  • United States (USD $)
  • Your Cart is Empty
Algae Research Supply
  • How to Grow
    • Choose your culture
    • Supplies
    • Start your project
    • Harvesting
    • Troubleshooting
  • Organisms
  • Lesson
  • Resources
    • Encyclopedia Aquatica
    • Interviews
    • Videos
    • Glossary
    • Phenomenon
    • FAQ
  • Shop
  • About Us
  • Reef Ecosystems
  • Porphose
  • Translation missing: en.general.country.dropdown_label

  • 0 0

Student Experiment: P-Limitation for lipid accumulation (Is this a good experiment to perform?)

November 27, 2017

I recently had a student write to ask about phosphorus limitation for nutrient limitation.

The questions were:

  • Which strains to use?
  • Which media to use?
  • How do I do it?

 

I'm going to be a giant bucket of cold water on you, in multiple ways. 
First, P-limitation does not really have a large effect on lipid accumulation.  The last time I did these tests with a former client with 20 or so strains the N-limitation effect was 10-20x more potent than the P-limitation.   Keep in mind, you are considering limiting a phosphate a key element in phospholipids
phospholipid.  
Second, they are incredibly difficult experiments to pull off (measuring lipids is technically challenging- need a mass spectrometer)  and isolating p-limitation in a algae culture is difficult as bacteria (ubiquitous) will recycle P from the water.  And one more bucket,  just do it with ONE algae strain with a larger number of replicates (n).  
But I have to choose; Chlorella or Nannochloropsis.
Media:  You may want to make your own.  Check out our media recipes.  You are are looking at REPLETE and DEPLETE conditions.  Watch your P-ions from other salts being added.  All medias used with the weed algae strains can tolerate >10x normal nutrients.  Use this to your advantage when you limit P.   
To limit, give them a fraction of the P as they would normally need to grow the culture.  They will still require some.  
Probability of success:  If I were to do this myself, in my lab, with a 20-hour per week technician, I would give myself 10 weeks and a 80% chance of failure.  
A good project:  As a former resident of HB.  I suggest going around to the little bits of waterway and seeing if they are ripe for algae blooms.  Try this kit. 
Good luck!
Matthew
  • Share:


Also in News

Announcing ARS Office Hours
Announcing ARS Office Hours

April 09, 2025

Read More

Algae Making a Difference!!! Noriware: Scaling Red Algae into a Viable Alternative to Single-Use Plastics
Algae Making a Difference!!! Noriware: Scaling Red Algae into a Viable Alternative to Single-Use Plastics

April 09, 2025

Read More

Aquarium Keepers:  Introducing Micro Marine Maintenance, A Live Trophic Boost for Your Reef Tank’s Foundation
Aquarium Keepers: Introducing Micro Marine Maintenance, A Live Trophic Boost for Your Reef Tank’s Foundation

April 09, 2025

Read More

Follow
  • Products
  • FAQ
  • Home
  • Contact
  • About us
  • Search
  • Blog
  • Algae Culture Media
  • Product Support
  • Request Quotation
  • Employment

Translation missing: en.general.country.dropdown_label

© 2025 Algae Research Supply.
Powered by Shopify

Amazon American Express Apple Pay Diners Club Discover Google Pay Mastercard PayPal Shop Pay Visa