The board of directors of Applied Microbiology Inc. said that ithas extended the deadline for the exercise of the New Yorkcompany's redeemable warrants to Feb. 28, 1993 from Feb. 28,1992. Each warrant entitles the holder to purchase 1.222shares of common stock (NASDAQ:AMBI) for $6, resulting in aprice per share of $4.91. Applied Micro shares closed unchagedat $4.63 on Wednesday.

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