Hypothalamus releases corticotropin-releasing hormone (CRH) ---> Pituitary gland releases adrenocorticotropic hormone (ACTH) ---> ACTH stimulates the adrenal cortex ---> adrenal cortex releases cortisol into the blood stream ---> cortisol affects target cells, and ceases once homeostasis is reached.
A bacteria, which possesses capsule is a capsulated bacteria. The purpose of capsule staining is to observe bacterial capsule by distinguishing capsular material from the bacteria cell. Principle: In capsule staining, a smear of bacteria is made at the center of a slide.
A capsule is closely associated with cells and does not wash off easily, while a slime layer is more diffuse and is easily washed away. Figure 2-50 shows the capsule surrounding Klebsiella planticola. Figure 2.50 Capsule surrounding cells of Klebsiella planticola.