Abstract

Purified Bacillus subtilis DNA taken up by one-day-old barley embryos and permanently fixed within the barley cell is shown to have maintained its biological activity in B. subtilis transformation. Cesuim chloride density gradient centrifugation of DNA isolated from the roots of barley embryos after the uptake and incorporation of radioactive, bromouracil-labelled B. subtilis DNA indicates the presence of the bacterial DNA in several discreet bands of well-defined density, whose density is changed by sonication. These preliminary findings concerning the fate of bacterial DNA taken up by barley roots are discussed in terms of the recombination model of Ledoux and Huart and further experiments are suggested.

Degree

MS

College and Department

Chemistry and Biochemistry

Rights

http://lib.byu.edu/about/copyright/

Date Submitted

1973-04-01

Document Type

Thesis

Handle

http://hdl.lib.byu.edu/1877/Letd554

Keywords

DNA, Bacillus subtilis, Barley

Language

English

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