GMU:Flagelates, Nematodes, and I/Nino Schmidt

Nematodes, do they prefer sugar or salt?

In My Project i am trying to find out how nematode Heterorhabditis bacteriophora are reacting to salt and sugar. I'm trying to find out if they prefer one environment more or even die in one. The nematodes stay in petri dishes with water, as we have found out that this is where they have the best chance of survival

General informations about nematodes:

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-> tiny, threadlike, colorless, unsegmented roundworms -> over 40.000 species (many are not yet figured out) -> not related to earthworms -> plant-feeding nematodes live in soil -> most of them are to small the be seen with naked eye but the longest known nematode is thirteen meters long and it resides in the sperm whale

first attempts to cook a medium in the laboratory:

Project implementation idea:

I try to find nematodes in soil by dissolving the earth in water I am going to try to divide the namdeaths found in the earth into 4 petri dishes. the petri dishes contain the following:

first petri dish: Nematodes in water (as a control, as they should survive here for a while)

second petri dish: Nematodes and salt which is dissolved in water

third petri dish: Nematodes and sugar which is dissolved in water

fourth petri dish: Nematodes and sugar on the on and salt on the other side of the petri dish with a little bit of water (to see if they prefer and move to one side)