Thanks, It's good to have someone around here with your professional knowledge of microbiology. I'm an amateur
But I do understand what you are saying from what I've read.
In the case of Bacillus subtilis which reproduces by both binary fission and by producing endospores, if you want spore production, you would lower the nutrient inputs, basically starving Bacillus subtilis. Bacillus subtilis is triggered into producing endospores when under nutrient stress, kind of insurance for species survival if things get hostile. Is that basically the same reaction as would happen with Streptomyces lydicus though it only reproduces by spores?