This type of penicillium needs oxygen in order to bloom into blue.

这种青霉需要氧气才能绽放成蓝色。

What's happening here is there is this one strain of mold called penicillium candidum.

这里有一种叫做白念珠菌的霉菌。

The penicillium mold constantly produces penicillin in order to defend itself from threats, such as nearby bacterial colonies that might consume its resources.

青霉霉菌不断产生青霉素，以抵御威胁，例如附近可能消耗其资源的细菌菌落。