So I decided to try and grow an onion I had at home by putting it in water. Not only did roots grow out of the onion, but something else also grew in the water...
On the outer onion peel, there were black specks of mold which actually began colonizing after being in water for a while! A mold sometimes seen on onions is Aspergillus niger which can present spoilage on the vegetable when infecting it.
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