HSP90B2P and infection: One of the few published articles that discuss the presence of HSP in G. mellonella, by Wojda et al, indicates that injection of entomopathogenic Bacillus thuringiensis cells causes HSP90 levels in larval fat bodies to increase approximately two-fold 1.5 hours after infection, and this rise is followed by a fall to slightly below control levels three hours after infection [44].