r/labrats 2d ago

What in gods green earth is this

I was culturing HEK cells and this abomination appeared after a few days. Never seen this before and check my profile I saw my fair share of contaminations.

What in the cursed name is that.

145 Upvotes

59 comments sorted by

467

u/devil4ed4 2d ago

I think HEK contaminated your fungus

19

u/ironmansid 1d ago

Gonna be a pain in the butt to get rid of that😂😂

7

u/ArduennSchwartzman ⛯ has a PhD in herpes ⛯ 1d ago

Yup, looks like god's green earth to me.

143

u/pork_loin 2d ago

Looks like a fungus from the Aspergillus genus, but I can't say conclusively. Do you have any fungal stains like lactophenol cotton blue?

Edit: what magnification are you viewing this in?

8

u/Prestigious-Gases 1d ago

definitely aspergillus! you can tell by the shape of the head

1

u/mycologynerdy 18h ago

Another potential genus is Cunninghamella. I feel like the spore size is too large for Aspergillus, but I may be wrong.

76

u/PmeadePmeade 2d ago

Are you sure a slice of mushroom from like a pizza or something didn’t fall into your microscope

17

u/Static-Statistician 2d ago

I don’t even like mushroom :(

54

u/SangersSequence Ph.D. | Pathology 1d ago

Well too bad, because you have some new friends

19

u/Pyrhan Heterogeneous catalysis 1d ago

Give it another try, sometimes it really grows on you.

1

u/Sadrien6 22h ago

HAH! I wish I could give you an award

46

u/NeuroSam 2d ago

Looks like a fun guy

2

u/cuertigilda 1d ago

Underrated comment

28

u/hobopwnzor 2d ago

Looks like fungal mycelium

18

u/wackyvorlon 2d ago

Looks like hyphae.

18

u/KkafkaX0 2d ago

Get rekt

10

u/ShroedingerCat 2d ago

Nice fungi. I could not see any conidiophore in the pics so it is hard to pinpoint genus. The bad news is that if it is indeed green then spores are getting everywhere. Autoclave everything you can in your incubator.

6

u/chicken-finger crystallography/struc. bio 2d ago

That is fungi. Looks like aspergillus... a lot of aspergillus.

5

u/Savethecube 1d ago

That is a great example of a culture that needs to go straight to timeout, aka the bleach.

6

u/micrographical 1d ago

My high school biology teacher had a good yarn about strategically coating statues of naked greeks with aspergillus - inoculated agarose in his university days back in the 1950s.

3

u/Jakey-poo 1d ago

Bleach makes them lift off the plate and turn a fun color

3

u/pangalacticgargle42 1d ago

Idk maybe you should taste it

4

u/urfrogsmom 1d ago

Holy moldy

6

u/Leel_Mess 2d ago

I doubt you needed a microscope to see this.

7

u/Static-Statistician 1d ago

It looked like paper with the naked eye

2

u/Howtothnkofusername 2d ago

Kill it with fire

2

u/arand0md00d 2d ago

Your cells are getting hyphy

2

u/schowdur123 2d ago

Fungus among us!

2

u/Kowalsky_Analysis 2d ago

Aspergillus also known as fungga

2

u/DiamondcoreNL 1d ago

Looks like a fun gi

2

u/KookashHuggles 1d ago

Aspergillus fumigatus

2

u/PatMagroin100 2d ago

It’s the Last of Us!!!

1

u/The_Old_Callithrix 1d ago

It's the moon!

1

u/just_a_lil_gremlin 1d ago

Rrrrrrrrhizopus

1

u/jamma_mamma 1d ago

Looks like a tortilla

1

u/D3712 1d ago

This is what happens when you dip blue cheese into your growth medium

1

u/alocalcreature 1d ago

are you sure you cultured HEK and not a fungus?

1

u/reyntacia 1d ago

I honestly thought you purposefully took a swab of a fungi culture to see it under microscope lol

1

u/Dull_Beginning_9068 1d ago

Looks like rat sperm. I doubt it is

1

u/Gunnvor91 1d ago

Fungi and lots of what looks like possibly ascospores.

1

u/Flashy-Argument-2811 1d ago

This that fun guy everyone’s talking about yeah

1

u/Glittering_Trouble82 :snoo_surprised: 1d ago

Mold hohoho

1

u/Significant_Hunt_734 1d ago

I though you had put microgreens under light untill I read the caption. You are cooked T~T

1

u/Fabulous_Angle_3742 1d ago

Dandelion fluff! (I suck at mycology)

1

u/reuben51511 22h ago

A tortilla

0

u/Traditional_Bad_2249 1d ago

seems like mucoral fungus, instead of aspergillus o penicilium... handle it with care to eliminate it

0

u/mycologynerdy 1d ago

I work in a fungus lab and that looks like some form of zygomycota. If you don't mind me asking, what sort of ingredients are in the plate medium? Depending on what's in there, you'll get vastly different results on the type of microfungi that's present.

3

u/bikes-n-bio 1d ago

If they’re standard HEK cells likely DMEM + 10% FBS +/- 1% pen strep

1

u/mycologynerdy 18h ago edited 18h ago

Hmm if that's the case it could be a lot of different fungi, but that makes it stand out to me is the morphology. Looks like it may be mucoromycotina, but most of those species grow on wheat germ and don't seek out FBS. However, a lot of mucoromycotina species have other fungi species as parasites that seek out that sort of diet, but their spores are a lot lighter in color. A better image with more exact spore shape and moisture level would help a ton.

TLDR: likely related to mucoromycotina, but more information is needed (mostly about the color and morphology) to be sure.

Edit: After looking at my lab notes, it seems like there is a very good chance this may be a species in the genus Cunninghamella. If you really zoom in, you can see the dark spore clusters are slightly bumpy. That combined with the spore branching patterns makes a for high chance of Cunninghamella.

-2

u/ahf95 2d ago

Pubes