Nematode Synchronization: A Method to Obtain Populations of Worms in Identical Stages of Development
Published: April 30, 2023
Abstract
Source: Sarasija, S. and Norman, K. R. Measurement of Oxygen Consumption Rates in Intact Caenorhabditis elegans. J. Vis. Exp. (2019).
In this video, we show a method of producing a developmentally synchronized population of sterile adult C. elegans. The example protocol synchronizes worms to study oxygen consumption rates in live animals.
Protocol
This protocol is an excerpt from Sarasija and Norman, Measurement of Oxygen Consumption Rates in Intact Caenorhabditis elegans, J. Vis. Exp. (2019). 1. Growth and synchronization of nematode population These animals will reach the L4 larval stage after ~42 h. At this time, move the L4 larvae using a platinum pick to OP50 seeded NGM plates containing 0.5 mg/mL 5-fluoro-2’-deoxyuridine (FUdR) to prevent t…
Representative Results
Table 1: Recipes for NGM plates, M9 buffer, and bleach solution. M9 buffer (1 L) dH2O 1,000 mL NaCl 5 g KH2PO4 3 g <t…
Disclosures
The authors have nothing to disclose.
Materials
| 100 mm; 60 mm Petri dishes | Kord-Valmark Labware Products | 2900; 2901 | |
| 15 mL conical tubes | Corning | 430791 | |
| 50 mL conical tubes | Corning | 430829 | |
| Agar | Fisher Scientific | BP1423-2 | |
| Bacto peptone | BD; Bacto | 211677 | |
| Bacto tryptone | BD; Bacto | 211705 | |
| Bacto yeast extract | BD; Bacto | 212705 | |
| Bleach | Generic | ||
| Calcium chloride dihydrate (CaCl2·2H2O) | Fisher Scientific | C79-500 | |
| Cholesterol | Fisher Scientific | C314-500 | |
| Deionized water (dH2O) | |||
| Glass Pasteur pipettes | Krackeler Scientific | 6-72050-900 | |
| Magnesium sulfate heptahydrate (MgSO4·7H2O) | Fisher Scientific | BP213-1 | |
| Potassium phosphate dibasic (K2HPO4) | Fisher Scientific | BP363-1 | |
| Potassium phosphate monobasic (KH2PO4) | Fisher Scientific | P285-500 | |
| Sodium chloride | Fisher Scientific | BP358-10 | |
| Sodium hydroxide (NaOH) | Fisher Scientific | BP359-500 | |
| Sodium phosphate dibasic anhydrous (Na2HPO4) | Fisher Scientific | BP332-1 |
Cite This Article
Nematode Synchronization: A Method to Obtain Populations of Worms in Identical Stages of Development. J. Vis. Exp. (Pending Publication), e20045, doi: (2023).