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2. CHAPTER 4MycologyNabeel Al-Mawajdeh RN.MCS. 3. Mycology. Mycology is The study of fungi.Mycoses means the diseases caused by fungi.Fungi are eukaryotic no photosynthetic organisms. Mostly they, are nonmotile. Fungi play a key factor in recycling the dead vegetation matter. They also can destroy food, fabrics, and leather. They can produce animal toxins; and some are parasites of plants. About 100 fungal species infect humans and cause disease.Nabeel Al-Mawajdeh RN.MCS.
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1. 1 MEDICAL MICROBIOLOGY (MMIC 201) Prepared by Nabeel Al-Mawajdeh RN,MSC.King Saud University-Aflaj College
2. 2 CHAPTER 4
Mycology
Nabeel Al-Mawajdeh RN.MCS
3. 3 Mycology Mycology is The study of fungi.
Mycoses means the diseases caused by fungi.
Fungi are eukaryotic no photosynthetic organisms. Mostly they, are nonmotile. Fungi play a key factor in recycling the dead vegetation matter. They also can destroy food, fabrics, and leather. They can produce animal toxins; and some are parasites of plants. About 100 fungal species infect humans and cause disease.
Nabeel Al-Mawajdeh RN.MCS
4. 4 Mycology (Cont’d) A fungus is actually a primitive plant that is found in air, in soil, on plants and in water. Some common fungi include mushrooms, yeast, mold and mildew.
Nabeel Al-Mawajdeh RN.MCS
5. 5 Morphological Classification Yeast: these are oval or round cells that reproduce by budding e.g. candida and cryptococcus neoformans.
Filamentous fungi: these are branching filaments (hyphae) which may be separate or non-separate e.g. dermatophytes; and Aspergillus.
Dimorphic fungi: these occur in 2 forms; a yeast form in tissues or when grown at 37°C ; and a filamentous form when grown at 22°C, e.g. Histoplasma, Blastomyces, Coccidioides.
Nabeel Al-Mawajdeh RN.MCS
6. 6 Clinical Classification Superficial mycoses: like oral thrush and vaginitis that caused by Candida albicans.
Cutaneous mycoses: involve the skin, nail or hair.
e.g. dermatophtes, cutaneous candidiasis.
Systemic mycoses: like lung infection that caused be Aspergillus fumigates.
Nabeel Al-Mawajdeh RN.MCS
7. 7 Reproduction of Fungi All fungi reproduce asexually by budding, asexual spores, fission. Most fungi can reproduce sexually by gametes; haploid gametes fused to form the zygote which give rise to a mature individual.
Nabeel Al-Mawajdeh RN.MCS
8. 8 The End
Nabeel Al-Mawajdeh RN.MCS