To know a plant, grow a plant!
Happy to hear that your trichome selection is producing your expected results!
You have shared some interesting thoughts with us. It would be very interesting to learn whether the variability in phytoalexin production can be heritable, and I think your suggestions provide a reasonable method to investigate this possibility.
The Rapid Cycling Brassica Collection (RCBC) has a number of Pathogen/Pest Interaction stocks. While I am not wholly familiar with these stocks myself, Dr. Paul Williams developed these stocks and may be able to weigh in on both the heritability of phytoalexins and an appropriate fungus for making such a selection experiment. I believe Paul plans to add his input to this discussion soon, if not we shall discuss this with him and follow up with you.
Hello again, Mattia,
At this time we have not ourselves conducted any testing on phytoalexin production in Fast Plants and cannot comment on the variability or heritability of phytoalexins. However, as I mentioned in the previous post, our seed collection, the Rapid Cycling Brassica Collection, does contain a number of Pathogen Interaction stocks that were selected for resistance/susceptibility to White Rust, an infection caused by the oomycete Albugo candida.
Paul Williams would recommend caution in attempting a study on Fast Plants and Albugo candida, as the process can be quite involved, but we'd like to provide you with information on White Rust and Albugo candida so that you may decide if this is a direction you'd like to move in. Attached to this post is a PDF about White rust and A. candida, hopefully it can be useful to you.