This document provides information about the genus Aspergillus. It was first catalogued in 1729 by Pier Antonio Micheli, who observed fungi under a microscope and named the genus based on its resemblance to an aspergillum. Aspergillus reproduces asexually through spore-forming structures and about one-third of species also have a sexual stage. They are defined as conidial fungi in an asexual state and some have been proven to have a sexual teleomorph state. Aspergillus species can grow in a variety of oxygen-rich environments and substrates, making them common contaminants of foods and plants.

1. Aspergillus:
Genus of fungi
Presented By:
Khushbu’s Microbiology
plz like share and subscribe

2. INTRODUCTION
 First catalogued in 1729 by the italian
priest and biologist pier antonio
micheli.
 Viewing the fungi under a microscope,
micheli was reminded of the shape of
an aspergillum (holy water sprinkler),
from latin spargere (to sprinkle), &
named the genus accordingly.

3. REPRODUCTION
 Asexual spore-forming structure
common to all Aspergillus species;
 Around one-third of species are also
known to have a sexual stage.

4. Growth
 Aspergillus is defined as a group
of conidial :fungi in an asexual state.
 Some of them, however, are known to have
a teleomorph :sexual state
in the ASCOMYCOTA with DNA proof
Pic of phylum : ASCOMYCOTA

7. DISTRIBUTION
 Possess the ability to grow : a high osmotic pressure exists :high concentration of
sugar, salt, etc.
 Aspergillus species: highly aerobic
 Found in : almost all oxygen-rich environments, where they commonly grow
as molds on the surface of a substrate,
 Commonly, fungi grow on carbon-rich substrates
 Common contaminants of starchy foods : as bread and potatoes
 Grow in or on many plants and trees.
 In addition to growth on carbon sources,
 Many species of aspergillus demonstrate oligotrophy.
 Several species of aspergillus, : a. Niger and A.Fumigatus will readily colonise
buildings, favouring warm and damp or humid areas :bathrooms around window
frames.

8. Aspergillus

9. THANKS