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870806_36

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Image #   870806-36
Name:   Penicillin (antibiotic) crystals
Copyright:   Copyright 1985 Dennis Kunkel Microscopy, Inc.
Description:   Caption: Penicillin (antibiotic) crystals. Penicillin is the first antibiotic developed from Penicillium spp. mold, a soil-inhabiting fungus, which has anti-microbial properties against a number of bacteria. Penicillin is a beta-lactam antibiotic used in the treatment of bacterial infections caused by usually Gram-positive, organisms. Penicillin and other beta-lactam antibiotics work by inhibiting the formation of peptidoglycan cross links in the bacterial cell wall. The beta-lactam of penicillin binds to the enzyme that links the peptidoglycan molecules in bacteria and prevents the bacteria from dividing. The name ""penicillin"" can either refer to several variants of penicillin available, or to the group of antibiotics derived from the penicillins. Penicillin was originally isolated from the Penicillium chrysogenum (formerly known as Penicillium notatum). It is now commercial synthesized and has become the most widely used antibiotic to date for many Gram-positive bacterial infections.
Magnification*: x20
Type: LM
    *(Magnifications are based on a 35mm slide image of 24mm in the narrow dimension.)
Keywords:   870806-36 12.01.04 antibiotic antibiotics anti-microbioal antimicrobial Ŗ-lactam antibiotic bacteria cell wall bacteria division bacteria infection bacteria infections bacterial infections beta-lactam antibiotic crystal crystals Gram positive infection Gram-positive infection Penicillium penicillin peptidogylcan soil fungus LM

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