2 - Bacterial Morphology and Structure Bacterial Morphology...

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Unformatted text preview: Bacterial Morphology and Structure Bacterial Morphology and Structure Xiao-Kui Guo PhD http://basic.shsmu.edu.cn/passw/micro2/index.asp SIZE OF BACTERIA SIZE OF BACTERIA Unit for measurement : Micron or micrometer,m: 1m=10-3mm Size: Varies with kinds of bacteria, and also related to their age and external environment. Cocci: sphere, 1m Bacilli: rods , 0.5-1 m in width -3 m in length Spiral bacteria: 1~3 m in length and 0.3-0.6 m in width Structure of Bacteria Structure of Bacteria Particular structures capsule flagella pili spore Essential structures Essential structures cell wall cell wall cell membrane cell membrane Cytoplasm Cytoplasm nuclear material nuclear material Gram + Gram - Cell wall Cell (inner) membrane Outer membrane Ribosomes Granule Cell wall Nucleoid Cell membrane Capsule Flagellum Pili Gram, C. 1884. Ueber die isolirte Gram, C. 1884. Ueber die isolirte Farbung der Schizomyceten in Farbung der Schizomyceten in Schnittund Trockenpraparaten. Schnittund Trockenpraparaten. Fortschritte der Medicin Fortschritte der Medicin , Vol. 2, pages , Vol. 2, pages 1884: 1884: Christian Gram Christian Gram : First publication for the Gram stain method) : First publication for the Gram stain method) Editor's note: I would like to testify that I have found the Gram method to be one of Editor's note: I would like to testify that I have found the Gram method to be one of the best and for many cases the best method which I have ever used for staining the best and for many cases the best method which I have ever used for staining Schizomycetes....
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This note was uploaded on 01/13/2012 for the course MMBIO 361 taught by Professor Bernard during the Fall '11 term at BYU.

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2 - Bacterial Morphology and Structure Bacterial Morphology...

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