The development of drug resistance as well as appearance of undesirable side effects of certain antibiotics has led to the search for new antimicrobial agents mainly from natural source with the goal to discover new chemical structures. Mushrooms are useful, delicious and mysterious members of the biosphere. Because of their taste and fleshy construction, they have been paid the attention by mankind for ages. Today, mushrooms are considered as an alternative food source to provide adequate nutrition to the world's increasing populations. Mushrooms have become attractive as a functional food...