Fungi, Yeast And Molds

Question 0

Superficial mycoses

Answer 0

• Tricophyton
• Microsporum
• Epidermophyton
• Pathogenic species of fungi that cause infections of skin, hair, or nails.
• Referred to as “dermatophytes

Question 1

Yeast

Answer 1

Saccharomyces cerevisiae

• Baker’s yeast
• Brewer’s yeast

Reproduce asexually by budding

Question 2

Tricophyton

Answer 2

T mentagrophytes
T rubrum
T tonsurans

Associated with ringworm infections of scalp, body nails, and feet

Athletes foot is the most common of these infections

Question 3

Microsporum

Answer 3

M. audouinii
M. canis
M. gypseum

These fungi cause ringworm infections of the hair, scalp, and body

Question 4

Epidermophyton

Answer 4

E. floccosum

Causes ringworm of the body, including athlete’s foot

Question 5

Opportunistic Mycoses

Answer 5

• Histoplasma capsulatam
• Candida albicans
• Aspergillus niger
• Rhizopus stolonifer
• Penicillium notatum

Question 6

Histoplasma capsulatam

Answer 6

Causes Histoplasmosis “Darling’s Disease”

Pulmonary infection
• Upon inhalation into the alveolar spaces, filaments transform into a budding yeast

Enters via the respiratory pathways

Question 7

Candida albicans

Answer 7

Candidiasis

Infects the nails (anychomycosis)

Skin (diaper rash)

Mucous membranes, especially the oropharynx
(thrush)

Vagina (moniliasis)

Esophagus, and GI tract

Question 8

Aspergillus niger

Answer 8

Disease : Aspergillosis

Respiratory origin

Causes black mold on fruits and vegetables

Ubiquitous in soil

Common food contaminant

Question 9

Rhizopus stolonifer

Answer 9

Disease : Zygomycosis

Respiratory

Bread mold fungus

Found in soil and decaying vegetation

In humans, is the most rapid spreading fungal infection

Question 10

Penicillium notatum

Answer 10

The source of penicillin

Rarely causes human disease

Widely distributed in nature