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Summary practical report, describing fungi and their importance
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how fungi is important and their classification
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Test Item File- Practice Test Bank - Prescott_s Microbiology,Willey,10e
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COMPLETE TEST BANK FOR Prescott's Microbiology 10th Edition by Joanne Willey (Author) LATEST UPDATE
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Prescotts Microbiology 10th Edition Willey Test Bank With Questions And Correct Answers ( 2022-2023)
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MYCOLOGY MYCL201 Practical Report 1Saccharomyces cerevisiae and Candida albicans
1 Taxonomic classification
SACCHAROMYCES CEREVISIAE
MSG ERC (2020) Saccharomyces cerevisiae is in Kingdom Fungi, the reason
for this is because it has cell wall made of chitin, it has no peptidodglycan in
its cell wall.
Phylum: Ascomycota
Class: Saccharomycetes
Order: Saccharomycetales
Family: Saccharomycetaceae
Genus: Saccharomyces
CANDIDA ALBICANS: They belong to Kingdom fungi under division
ascomycota the class is saccharomyces and order saccharomycetales, their
family is saccharomycetaceae, genus Candida.
2 HABITAT
SACCHAROMYCES CEREVISIAE MSG ERC (2020) cells are found on moist and
warm environment with a sufficient amount of simple and soluble nutrients to support
their growth and multiplication. They can also be isolated on mammals like humans
especially in intestinal tract, beverages such as beer and wine, plants, olives.
Saccharomyces cerevisiae are also found growing wild on the skin of grapes and
other grapes (Before maturation, grapes are almost free from yeast.). Sugar-rich
environment is one of their habitats.
Sagar (2020) CANDIDA ALBICANS are found in mucosal membranes of human
and other warm-blooded animals, and also in the guts, vagina on the surface of the
skin. They also found in the digestive tract of birds and you can isolate them from
environment particularly on leaves flowers water, soil animal, hospitals, in-animate
objects and food, they are cosmopolitan since they are distributed worldwide.
3 MORPHOLOGY
Macroscopic
SACCHAROMYCES CEREVISIAE cells are flat, smooth, moist, glistening or full
and cream in colour.
Page 2 of 6
Bachelor of Applied Science in Food Science and Technology (BSFST1)
, MYCOLOGY MYCL201 Practical Report 1
Form: elongated
Margin: entire
CANDIDA ALBICANS- Scott (2016) in one form the microbe is white around cells is
small colonies, the other form is opaque, elongated shape in flat grey colonies
Microscopic
SACCHAROMYCES CEREVISIAE cells are unicellular, globose, and ellipsoid to
elongate in shape. Multilateral (multipolar) budding is typical. Saccharomyces
cerevisiae general have a diameter of 2-8 micrometres and length of 3-25
micrometres. They appear in clusters showing parent and daughter.
CANDIDA ALBICAN species produce blastoconidia stingly or in small clusters
daughter cells attached to parent cells. They are yeast form human cell, Yeast form,
unicellular, and reproduce by budding.
4 REPRODUCTION ( sexual and asexual)
SACCHAROMYCES CEREVISIAE- Health Jade (2019) Sexual reproduction of
this cells can also be called sporulation. Saccharomyces cerevisiae exists as either a
diploid or a haploid cell. Both haploid and diploid Saccharomyces cerevisiae cells
can reproduce by mitosis under favourable environmental conditions.
In sexual reproduction somatic cell of Saccharomyces cerevisiae yeast exists
in two form (Haploid dwarf cell and Diploid large cell)
Haploid cell contains two mating types “a” and “α” (alpha) the Haploid cells
are capable of mating with other haploid cells, but of the opposite mating type
(an a cell can only mate with an α (alpha) cell, and vice versa) to produce a
diploid cell.
During favourable condition each of the haploid cell multiply by budding only
If these mating types comes in contact with each other, they form gametangia
and starts sexual reproduction
Fusion of these two haploid cell form large fusion cell called Plasmogamy
Nucleus also fused by karyogamy to form zygote multiply by budding and
forms several diploid cells
these diploid cells are larger than haploid cells
Page 3 of 6
Bachelor of Applied Science in Food Science and Technology (BSFST1)
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