Abstract: Disclosed herein are spore compositions and methods of producing such compositions. Additionally disclosed herein are plant protection products benefiting from such spore compositions and methods of using such compositions for the benefit of plants, for the reduction of pathogen emissions to nearby areas and for the benefit of animals or humans. Further disclosed herein are methods of efficient fermentation.

Abstract: Described herein is a fermentation medium for production of a plant health promoting microorganism. The fermentation medium includes nicotinic acid and biotin. A concentration of nicotinic acid in the fermentation medium is at least 0.1 mg/l, and a concentration of biotin in the fermentation medium is at least 0.01 mg/l. The fermentation medium also includes methionine. A concentration of methionine in the fermentation medium is at least 0.01 g/l.