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Picloram Sensitivity and Nucleic Acids in Plants

Published online by Cambridge University Press:  12 June 2017

S. S. Malhotra  and
J. B. Hanson
S. S. Malhotra
Affiliation:
Agronomy Department, University of Illinois, Urbana
J. B. Hanson
Affiliation:
Agronomy Department, University of Illinois, Urbana
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Abstract

The changes in the nucleic acid metabolism were studied in plants susceptible and resistant to 4-amino-3,5,6-trichloropicolinic acid (picloram). The total RNA and DNA content of the tissue correlated inversely with the herbicide resistance; the resistant plants were low in nucleic acids, whereas sensitive plants were high. The increase in the nucleic acids of the sensitive species 24 hr after picloram treatment appeared to be associated with lower levels of ribonuclease and deoxyribonuclease. The inability of the resistant species to make more RNA may be associated with high levels of nucleases in the tissue.

Type
Research Article
Information
Weed Science , Volume 18 , Issue 1 , January 1970 , pp. 1 - 4
Copyright
Copyright © 1970 Weed Science Society of America 

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References

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