Help ID fungal rhizomorph (?)

General Fruit Growing
1

I have these neon orange “roots” pretty much everywhere, at least in areas that I’ve been mulching with arborist wood chips for years.
They’re much brighter-colored than the pics suggest.

I think they’re fungal because they tear very easily and are kinda rubbery.
They’re under the surface of the mulch and/or in the soil of course, not on top.

ID?
Friend or foe?
IMG_5821
IMG_5822

2

you got any mulberry nearby? they have those bright yellow fine roots.

3

Hmm yes, I reckon I do.

Are their roots rubbery?

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4

https://www.reddit.com/r/plants/comments/tka8g6/harmful_i_found_these_bright_orange_roots_about/?rdt=48939

5

yes. i have 4in. of mulch around my white mulberry. these roots are all through it.

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6

Thanks!
Yeah they certainly look like roots but the texture is so weird!

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