Fig. 3: Endospore Formation, Step 6

A thick protective layer of peptidoglycan called the cortex is synthesized between the inner and outer forespore membranes. Calcium dipicolinate is synthesized and incorporated in the forming endospore.

Illustration of Endospore Formation, Step 6.jpg by Gary E. Kaiser, Ph.D.
Professor of Microbiology, The Community College of Baltimore County, Catonsville Campus
This work is licensed under a Creative Commons Attribution 4.0 International License.
Based on a work at

Last updated: August, 2018
Please send comments and inquiries to Dr. Gary Kaiser