Biochemistry Questions / Describe the role of OPG (osmoregulated periplasmic glucans) in protecting spores during sporulation and how it differs from endospores.

Osmoregulated periplasmic glucans, OPG, are fibres found in endospores to protect the spore from turgor forces. If these were not present, the spore could be damaged during the dehydration process in the core, disturbing the integrity of the cortex and exosporangium.