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Effect of Dicamba on RNA and Protein

Published online by Cambridge University Press:  12 June 2017

W. E. Arnold and
John D. Nalewaja
W. E. Arnold
Affiliation:
Plant Science Department, South Dakota State University, Brookings
John D. Nalewaja
Affiliation:
Agronomy Department, North Dakota State University, Fargo
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Abstract

The effect of 3,6-dichloro-o-anisic acid (dicamba) was studied on wild buckwheat (Polygonum convolvulus L.) and wheat (Triticum aestivum L.) at two growth stages. Wild buckwheat, treated when 5 to 8 cm tall, was very susceptible to dicamba which caused rapid dehydration of the leaves and growth of callus tissue at stem internodes. Wild buckwheat, treated when flowering, increased in growth 2 days after treatment and then decreased after 4 days. Wheat growth tended to increase in all plant parts after treatment with dicamba at both the 2 to 3-leaf and the boot stages. Dicamba increased the RNA and protein content in wild buckwheat at both growth stages and in wheat at the boot stage. Dicamba affected the transition temperature and precipitation of reconstituted nucleohistone but not the uncombined nucleic acid or histone in vitro, indicating that a DNA-histone-dicamba complex had occurred. The binding of dicamba to protein varied with different proteins and reduced the UV absorbance of the bound proteins.

Information

Type
Research Article
Information
Weed Science , Volume 19 , Issue 3 , May 1971, pp. 301 - 305
Copyright
Copyright © Weed Science Society of America 

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References

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