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. 1988 Jan;86(1):266–269. doi: 10.1104/pp.86.1.266

Allyl Alcohol Selection for Lower Alcohol Dehydrogenase Activity in Nicotiana plumbaginifolia Cultured Cells 1

Jack M Widholm 1, Isao Kishinami 1,2
PMCID: PMC1054465  PMID: 16665878

Abstract

One cell strain with stable tolerance to allyl alcohol (AAr) was selected from 6 × 108 suspension cultured Nicotiana plumbaginifolia Viviani cells. The selected strain contained one-half the alcohol dehydrogenase (ADH) activity of the wild type (NP) due to the loss of two of three bands of ADH activity seen on starch gels following electrophoresis of wild-type cell extracts. Anaerobic conditions, simulated by not shaking the suspension cultures, increased the ADH specific activity to more than 3-fold the initial level in both strains but did not change the number of activity bands or the relative levels of activity. The cell strain with decreased ADH activity lost viability more rapidly than the wild type under the anaerobic conditions. The AAr cells were 10 times more tolerant to ethanol than the NP cells and were also somewhat more tolerant to acetaldehyde and antimycin A. The substrate specificities of the ADH enzymes from both strains were very similar. Further selection of AAr cells with allyl alcohol produced strains with even lower ADH activity and selection under anaerobic conditions produced strains with increased ADH activity. Genetic studies indicate that the N. plumbaginifolia ADH activity bands arise from subunits produced by two nonallelic genes. This is the first example of the use of allyl alcohol to select for decreased ADH using cultured plant cells.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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