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Fungi
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Title : Aspergillus Magnification : 100x Keywords : Aspergillus, fungi, conidia
Text :
Aspergillus is a fungus that reproduces asexually by producing spores
called conidia. The black circle in the center of the slide is a mass of
conidia. The blue lines are hyphae, that would normally grow through the soil.
The higher magnification view shows a more detailed view of conidia. Aspergillus
is used in Asia to make soy sauce. A different species in the same genus grows
on peanuts and produces aflatoxins that cause liver cancer. Click here to see higher
magnification. (450X) Title: Coprinus Magnification : 50x Text: This slide shows a section through the cap of a mushroom. The blue areas are the gills, the pink dots are the spores. The higher magnification shows the basidiospores: these are produced in groups of 4 by club-shaped basidia. Title: Penicillium Magnification: 200x Keywords: Penicillium, fungi, antibiotic, cheese Text: The pink lines are hyphae of the Penicillium fungus, the circular dots are spores. Penicillium was the original source of the first antibiotic Penicillin. It is also used in producing blue cheese, like Brie and Camembert. Title: Peziza Magnification : 50x Text: Peziza is an ascomycete, which means that it produces 8 ascospores in a long sac-like ascus. The pink lines on the left of the slide are rows of asci, the blue area on the right is the base of the fruiting body, which is shaped like a small cup. The high magnification view shows the ascospores lined up inside each ascus. Title : Sordaria Magnification : 100x Image : sord100.jpg
Text : This fungus produces a fruiting body called a perithecium (the purple area in the image). Inside the perithecium the cells divide by meiosis and then mitosis to produce 8 spores inside a single ascus. Click here to see higher magnification (400x)
Title : Puccinia graminis (Wheat rust) Magnification : 100x Image : rust100.jpg Keywords : fungus, uredia, aecium, barberry Text :
One of the main fungal parasites of wheat is Puccinia graminis.
This image shows the urediospores of the fungus bursting out of the top
surface of a wheat leaf. This spreads the infection to other wheat plants. Click here to see higher magnification (400x) This fungus overwinters in a different host plant, barberry, where it produces a cup-shaped aecium. Click here to see the aecium (100x)
Title : Saccharomyces (yeast) Magnification : 400x Image : yeast400.jpg Keywords : Fungi Text : A
large group of single celled yeast are shown here. Yeast is an ascomycete,
but it reproduces almost exclusively by asexual reproduction (budding). Each
cell just divides in two. This genus of yeast is used for baking (it makes the
carbon dioxide that helps dough to rise) and also beer and wine making (in
anaerobic conditions yeast produces alcohol). The genome of yeast was recently
sequenced. Click here for higher magnification (1000x)
Title: Rhizopus
Magnification : 40x Image : rhizopus.jpg Keywords : fungi, mold, zygospore, zygomycete, hyphae
Text: Rhizopus is a common bread mold. The pink lines are
the hyphae, the dark pink ovals are individual zygosporangia, that are produced
when two individuals (a positive and negative mating type) meet. This is shown
in more detail under high magnification. Click here to see higher
magnification. (400x)
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