Staphylococcus aureus secretes penicillinase?

[goal270]

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Hi, this might be really nitpicky but it is important for me to understand.
In FA, first page of microbiology, it says the periplasmic space in gram neg. bac. contains beta lactamase. I thought this meant only gram neg. bac. can secrete beta lactamase. But we also know that staphylococcus aureus secretes beta lactamases as well. Being a gram pos. bac, where does it store it?

 

[chromuffin]

Hi, this might be really nitpicky but it is important for me to understand.
In FA, first page of microbiology, it says the periplasmic space in gram neg. bac. contains beta lactamase. I thought this meant only gram neg. bac. can secrete beta lactamase. But we also know that staphylococcus aureus secretes beta lactamases as well. Being a gram pos. bac, where does it store it?

I guess I wasn't aware it secretes beta lactamase. I've always understood it as altering penicillin binding proteins so that beta lactams were just incapable of acting on the bacteria. So I'm not sure.