fungi mushrooms mycology the fifth kingdom

Pictorial Supplement to The Fifth Kingdom - Chapter 2b

Phyla Chytridiomycota (Kingdom Fungi)
and Oomycota (Kingdom Chromista)

(29 pictures)


Phylum Chytridiomycota (Kingdom Fungi)


chyzoo.jpg (4078 bytes)
Chytridiomycota - Blastocladiales - zoospore of Allomyces (phase contrast illumination)
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eucarpic.jpg (9135 bytes)
Chytridiomycota - Chytridiales - eucarpic thallus of Rhizophydium in culture
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pollen1.jpg (2511 bytes)
Chytridiomycota - Chytridiales - Chytridium lagenaria: sporangium developing on a pollen grain of Pinus. Time lapse sequence
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pollen2.jpg (3116 bytes)
Chytridiales - Chytridium releasing zoospores.
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pollen3.jpg (2730 bytes)
Chytridiales - Chytridium releasing uniflagellate zoospores
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pollen4.jpg (2643 bytes)
Chytridiales - Chytridium - empty sporangium on pine pollen grain.
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wart.jpg (7156 bytes)
Chytridiomycota - Chytridiales - wart of potato caused by Synchytrium endobioticum
X 1/3


spirogyr.jpg (6733 bytes)
Chytridiomycota - Chytridiales - sporangia of a eucarpic chytrid on the green alga, Spirogyra
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dinoflag.jpg (4677 bytes)
Chytridiomycota - Chytridiales - sporangia of a chytrid on Ceratium, a planktonic dinoflagellate
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Phylum Oomycota (Kingdom Chromista)


flagella1.jpg (11895 bytes)
Oomycota - the two flagella of a zoospore of Phytophthora palmivora (EM)


achlya.jpg (12789 bytes)
Oomycota - Saprolegniales - broad hyphae of Achlya growing from a hemp seed and producing, (1) long, white asexual zoosporangia and (2) round white sexual oogonia
X 8


saprolegnialean zoosporangia1.jpg (7873 bytes)
Oomycota - Saprolegniales - zoosporangium
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saprolegnialean zoosporangia2.jpg (10721 bytes)
Oomycota -Saprolegniales - zoosporangia.
X 400

This and the slide above were submitted by Correspondence students in course Biology 422 as part of an assignment.


oogonium.jpg (5735 bytes)
Oomycota - Saprolegniales - an oogonium containing several eggs. Note the basal septum, and the thin-walled zones that facilitate penetration by antheridia. (Nomarski interference-contrast illumination).
X 400


2 Albugo lo res.jpg (12890 bytes)
Oomycota - Peronosporales - white rust of crucifers caused by Albugo candida
X 1


albugo2.jpg (10286 bytes)
Oomycota - Peronosporales - vertical section through a sorus of Albugo producing chains of unicellular asexual sporangia from a basal layer of sporangiophores.
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perono1.jpg (5449 bytes)
Oomycota - Peronosporales - sporangiophore of Peronospora with attached sporangia
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dowmilgr.jpg (6302 bytes)
Oomycota - Peronosporales - downy mildew of grape caused by Plasmopara viticola
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plasmop1.jpg (4308 bytes)
Oomycota - Peronosporales - branched aerial sporangiophore of Plasmopara viticola
X 200


bordmix1.jpg (10189 bytes)
Oomycota - Peronosporales - vines near Beaune, France,  sprayed with a derivative of Bordeaux Mixture to prevent downy mildew


bordmix2.jpg (8612 bytes)
a billboard in Beaune for the fungicide


blight4.jpg (16612 bytes)
Oomycota - Peronosporales - late blight of potato caused by Phytophthora infestans


blight1.gif (10148 bytes)
Oomycota - Peronosporales - the aerial sporangiophores of Phytophthora emerging from the potato leaves - a drawing made in 1847


blight2.gif (7199 bytes)
Oomycota - Peronosporales - Phytophthora infestans - destitute Irish girls gleaning for food at the height of the potato famine - 1847


blight3.jpg (14181 bytes)
Oomycota - Peronosporales - Phytophthora infestans - people preparing to leave Ireland forever dueing the potato famine.


blight5.jpg (5925 bytes) blight6.jpg (5137 bytes)
Oomycota - Peronosporales - Phytophthora infestans. Monument to 187 Irish would-be immigrants to Canada, fleeing from the potato famine, who drowned just off the Gaspe Peninsula in 1847.


bluemol1.jpg (5754 bytes)
Oomycota - Peronosporales - blue mould of tobacco caused by Peronospora tabacina
X 1/4


bluemol2.jpg (3891 bytes)
Oomycota - Peronosporales - a branched aerial sporangiophore of Peronospora tabacina.
X 200


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