What is NGM Lite?
David Craig
Updated on April 02, 2026
A modified preparation of NGM for use in Nematode growth studies. Intended for use with Nematode Growth Medium, Lite (NGM Lite, Catalog No: N1005) Appearance. Light tan, homogeneous, free flowing powder. Solubility without autoclaving.
How long do NGM plates last?
To seed plates, dispense 100-120 μl of the OP50 onto the 60 mm diameter NGM Petri plate and swirl to spread it. Incubate these seeded plates overnight at room temperature for the lawn to grow. These seeded plates can now be stored at 4° C for up to 3 weeks.
What is typically added to NGM plates after autoclaving?
NGM-Agar plates (1 L) After autoclaving, add 1 mL of cholesterol (5 mg/mL in 95% EtOH stock), 1 mL of 1 M MgSO4, 1 mL of 1 M CaCl2, 25 mL of 1 M K2PO4, and 1 mL of amphotericin B (2.5 mg/mL stock).
How do you dispose of C elegans?
Dispose of autoclaved bag as your school recommends. C. elegans • You can safely use one of the following disposal methods: • Use a 20% bleach solution for 10 minutes (make sure the culture does not open until it is submerged in solution in order to the organisms are not released into the environment).
Why is the OP50 strain of E coli used to feed the C elegans?
elegans feeds on bacterial lawns growing on agar plates. E. coli strains that have been commonly used by C. elegans researchers include OP50, a strain chosen by Sydney Brenner because it forms a thin lawn that allows for optimal visualization of C.
What is NGM plates?
NGM stands for Nematode Growth Media, these plates are made so that nematodes like C. elegans will reproduce and also facilitate harvesting the worms.
What is in NGM agar?
1. For solid NGM, mix 3 g of NaCl, 2.5 g of peptone, and 20 g of agar and bring to 1 L with H2O.
How do you make a NGM agar plate?
Nematode Growth Medium (NGM)
- For solid NGM, mix 3 g of NaCl, 2.5 g of peptone, and 20 g of agar and bring to 1 L with H2O.
- Autoclave for 1 h.
- Let cool for 1 h in a 55°C water bath.
What are NGM plates?
NGM stands for Nematode Growth Media, these plates are made so that nematodes like C.
Why is OP50 used for C. elegans?
E. coli strains that have been commonly used by C. elegans researchers include OP50, a strain chosen by Sydney Brenner because it forms a thin lawn that allows for optimal visualization of C.
Can C. elegans be frozen?
Caenorhabditis elegans can be frozen and stored indefinitely in liquid nitrogen (−196 °C) (Brenner, 1974). The keys to a successful freeze are using animals at the correct stage of development, the addition of glycerol to the freezing media, and a gradual cooling to −80°C.
