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12. The Eukaryotes: Fungi, Algae, Protozoa, and Helminths. Domain Eukarya. Table 12.1. The Fungi. Eukaryotic Aerobic or facultatively anaerobic Chemoheterotrophic Most are decomposers Mycology is the study of fungi. Mycology: The Study of Fungi. Table 12.2. Molds. - PowerPoint PPT Presentation
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Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
PowerPoint® Lecture Slide Presentation prepared by Christine L. Case
M I C R O B I O L O G Ya n i n t r o d u c t i o n
ninth edition TORTORA FUNKE CASE
Part A12The Eukaryotes:
Fungi, Algae, Protozoa, and
Helminths
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Table 12.1
Domain Eukarya
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Eukaryotic Aerobic or facultatively anaerobic
Chemoheterotrophic
Most are decomposers
Mycology is the study of fungi
The Fungi
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Mycology: The Study of Fungi
Table 12.2
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Molds
The fungal thallus consists of hyphae; a mass of
hyphae is a mycelium.
Figure 12.2
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings Figure 12.1 - Overview
Copyright © 2006 Pearson Education, Inc., publishing as Benjamin Cummings
Yeasts
Unicellular fungi Fission yeasts divide symmetrically
Budding yeasts divide asymmetrically
Figure 12.3
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Dimorphism
Pathogenic
dimorphic fungi
are yeastlike at
37°C and moldlike
at 25°C
Figure 12.4
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Fungal Life Cycle
Figure 12.7
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Fungal Diseases (Mycoses)
Systemic mycoses: Deep within body
Subcutaneous mycoses: Beneath the skin
Cutaneous mycoses: Affect hair, skin, and nails
Opportunistic mycoses: Caused by normal
microbiota or environmental fungi
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Conidiospores – asexual spore production
Figure 12.5a–c
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Sexual Spores
Zygospore: Fusion of haploid cells produces one
zygospore.
Figure 12.6
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Sexual Spores
Ascospore: Formed in a sac (ascus).
Figure 12.7
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Sexual Spores
Basidiospore: Formed externally on a pedestal
(basidium).
Figure 12.8
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