Reading_BacterialDevelopment_1

Reading_BacterialDevelopment_1 - Bacterial Development The...

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1 Bacterial Development The following two readings from the textbook are examples of developmental processes that occur in bacteria that we will talk about in lecture. Textbook Reading Page 658 “ The Cyanobacterial Heterocyst The points to be remembered from this text: Know that cynobacteria form heterocysts. Know that heterocysts differ in form and function from be vegetative cells. Know that heterocysts fix dinitrogen and provide a reduced form of nitrogen to the vegetative cells and that the vegetative cells fix carbon dioxide and provide a reduced form of carbon to the heterocysts. To study cell specific gene expression or protein function (e.g. in the forespore versus the mother cell or the heterocyst versus the vegetative cell), fluorescent microscopy and a fluorescent reporter is used. For example, by creating a transcription fusion of a gene required for sporulation to the gene for the green fluorescent protein (GFP), one can determine whether that gene is expressed in the mother cell, the forespore or both.
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