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Plant Cell Rep. 1994 Jan;13(3-4):212-7. doi: 10.1007/BF00239895.

Biolistic transformation of tobacco and maize suspension cells using bacterial cells as microprojectiles.

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Department of Biological Sciences, SUNY Plattsburgh, 12901, Plttsburgh, New York, USA.


We have used both Escherichia coli cells and Agrobacterium tumefaciens cells as microprojectiles to deliver DNA into suspension-cultured tobacco (Nicotiana tabacum L. line NT1) cells using a helium powered biolistic device. In addition, E. coli cells were used as microprojectiles for the transformation of suspension-cultured maize (Zea mays cv. Black Mexican Sweet) cells. Pretreating the bacterial cells with phenol at a concentration of 1.0%, and combining the bacterial cells with tungsten particles increased the rates of transformation. In N. tabacum, we obtained hundreds of transient transformants per bombardment, but were unable to recover any stable transformants. In Z. mays we obtained thousands of transient transformants and an average of six stable transformants per bombardment. This difference is discussed.

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