Hemitrichia serpula
Shannon Miller

Hello, my name is Hemitrichia serpula.  I belong to the Kingdom Protista, the Order Trichiales, and the Class Myxomycetes.  I would like to tell you all about myself.  I am an elongated, mummy-shaped diatom, which means I grow a silica shell around myself.  This silica shell is an absolute requirement for me for metabolism.  I'm an acellular "true" slime mold and form conspicuous, yellow, reticulate plasmodiocarps on humus.  I prefer marine environments and am currently in an endosymbiotic relationship with a duckweed plant in a pond, which is going pretty good for me.  My plasmodiocarps are derived from phaneroplasmodium veins and can be up to several centimeters across.  My major vegetative state is multinucleate and I have migratory plasmodium, which have rapid flow.  To tell you a little about my plasmodium-it's thick, has granular protoplasm, and sporangia form on it.  I like to feed often by moving my plasmodium over and digesting things such as bacteria, yeasts, microalgae, protozoa, particles of organic detritus, and sometimes others of my own species, (lots of nutrition).  I am also multi-spored and very brightly colored.  I can also form macroscopic fruiting bodies, which develop from my plasmodium.  As for reproduction, it is oogamous sexual reproduction with alternate haploid and diploid phases.  The male gametes have a single flagellum.  When I find a cell that is compatible with me, I fuse with it and a zygote develops in the vegetative stage called phaneroplasmodium.  Well, enough about myself.  I hope you thought I was a very interesting microorganism.


1.  A.I. Laskin and H.A. Lechevalier.  Handbook of Microbiology: Fungi, Algae, Protozoa, and Viruses vol.2  Copyright 1978, CRC Press.

2.  Sainsbury, Diana and Singleton, Paul.  Dictionary of Microbiology and Molecular Biology ed.2  Copyright 1978, John Wiley and Sons.

3.  The Microbe Zoo web site:

Picture scanned from The Microbe Zoo web site



*Disclaimer - This report was written by a student participaring in a microbiology course at the Missouri University of Science and Technology. The accuracy of the contents of this report is not guaranteed and it is recommended that you seek additional sources of information to verify the contents.


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