Chapter 18, Problem 4RQ

Summary Introduction

To review:

The following:

1. The name and description of three genera of Firmicutes that are able to form endospores.

2. The difference between single and multiple spore formers.

3. The existence of non-spore-forming species of Firmicutes.

Introduction:

The bacteria belonging to the phylum Firmicutes are Gram-positive bacteria having a thick peptidoglycan cell wall. They have low GC (guanine-cytosine) content. Their cell walls are strengthened by teichoic acids and cross-linking phosphodiester chains of ribitol and glycerol. Endospores are formed by many species that give them survival advantage under unfavorable conditions.