Myxogastria

2

“Chocolate Tube Slime” (Stemonitis fusca)

…although it may look like a fungus S.fusca is actually a amoebozoan protist that is found worldwide. Like some other slime molds they typically grow in clusters on rotting wood and are characterized by their tall brown sporangia (spores) which are supported by slender stalks.

Classification

Ameobozoa-Mycetozoa-Myxogastria-Stemonitida-Stemonitidae-Stemonitis-S. fusca

Images: bdunc photos and 6el

Myxomycete - Badhamia utricularis

A group of yellow sporangia of the cosmopolitan slime mold Badhamia utricularis with its pedicels attached, giving them the appearance of bunches of grapes hanging from the substrate (dead wood and bark).

[Amoebozoa - Mycetozoa - Myxogastria - Physarales - Physaraceae - Badhamia - B. utricularis]

References: [1] - [2]

Photo credit: ©Iñigo Gómez de Segura | Locality: Basque Country

When we found some fresh myxogastria (german: Schleimpilze) in one of our hermetospheres – our biologist friend “Dr. Bob” told us how fast they can grow and we shoud make some pictures as proof - so we did. The animation is made from pics of a periode of only 2 and a quater hours. The last pic we made the next morning: the plasmodium turned into fruit bodies
Specimen: C-13
Time of hermetical insularity: 1 month

Stemonitis sp. “Brown Plasmodial Slime Mold” Myxogastria

Point Defiance Park, Tacoma, WA
July 8, 2013
Robert Niese

Slime molds are colonial unicellular organisms that are distantly related to animals and fungi. They are active predators of bacteria, protists, and fungi, and are most often observed in their fruiting phase (as seen above). These beautiful fruiting structures (check out these crazy colors!) then release spores which get distributed by the wind or small animals.

Slime mold 

These are the fruiting bodies (sporocarps) of the slime mold identified as Arcyria cinerea (Trichiida - Arcyriaceae), a cosmopolitan and common species of myxomycete, that grows on dead wood, logs and branches, barks of living trees, or plant debris.

Although the usual color of this species is gray to light ochraceous buff, or olive buff, the coloration and shape is quite variable as these ones that are very dark.

References: [1] - [2]

Photo credit: ©Kim Fleming | Locality: Abbeville County, South Carolina, US

Made with Flickr
Slime Molds: Our Beautiful Granddaddies

External image


You can read all about slime mold yourself, but I’ll just show you its sexy bits: that it spreads the same way amoebas do, making it kind of animal-y (note that they’re right next to animals in the phylogenetic tree—-> Slime molds are our ancestors!!! 

Their cells also find each other when seperated, just like that golden retriever, and can predict poor conditions, leading some scientists to conclude that they have “simple brains”.

Which explains mine. Behold the beauty:

Ernst Haeckel’s beautiful drawing of mycetozoa 

Little lamb slime mold.

English toffee slime mold.

Shiny pink carpeting slime mold. 

Curious diaper slime mold.

“Can you cultivate slime mold?" 

…Was the first question I asked in my biology lecture. The answer:
”……Well.     Are you asking if anyone does? Because nobody does.

But you could.“

But I could*~*~*~*!*!! 

Happy Wednesday.
Love,

Hilary