I had the EXACT same thought. If the fungi eats plastic, what eats the fungi? I find this a veri legitimate question.
I assume/hope that it doesn't turn/get converted to a plasticofungi that cannot be eaten by fish/etc. This would only reshape the pollution, not eliminate it.
I didn't find an answer to this in this specific article; I hope it will be covered somewhere else.
Well, the fungi "breaks down plastic", which means that it converts it into other types of molecules. Just plants use C02 + H20 + sunlight in photosynthesis to convert it into O2 + glucose.
If we could break down the molecules ourselves we would have done it already, but it's not easy to do that. That is why we benefit from these natural occurring organisms that break them down and leave a more useful byproduct (to us). Although nano technology can eventually give us the ability to do this in a controlled way.
I assume/hope that it doesn't turn/get converted to a plasticofungi that cannot be eaten by fish/etc. This would only reshape the pollution, not eliminate it.
I didn't find an answer to this in this specific article; I hope it will be covered somewhere else.