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Effects of Herbicides on ATP Levels in Excised Soybean Hypocotyls

Published online by Cambridge University Press:  12 June 2017

R. D. Gruenhagen  and
D. E. Moreland
R. D. Gruenhagen
Affiliation:
Departments of Crop Science and Botany, North Carolina State Univ., Raleigh, North Carolina Union Carbide Corp., Clayton, North Carolina
D. E. Moreland
Affiliation:
Crops Res. Div., Agr. Res. Serv., U. S. Dep. of Agr., Crop Science Dep., North Carolina State Univ., Raleigh, North Carolina
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Abstract

Effects of 22 herbicides on the ATP content of excised soybean [Glycine max (L.) Merr., var. Lee] hypocotyls were determined and compared with interferences reported previously on RNA and protein syntheses. Herbicides that reduced ATP levels and inhibited RNA and protein syntheses were 2-sec-butyl-4,6-dinitrophenol (dinoseb), 4-hydroxy-3,5-diiodobenzonitrile (ioxynil), 3′,4′-dichloropropionanilide (propanil), isopropyl m-chlorocarbanilate (chlorpropham), 2,3,5-trichloro-4-pyridinol (pyriclor), 2-chloro-N-isopropylacetanilide (propachlor), (2,4,5-trichlorophenoxy)acetic acid (2,4,5-T), and (2,3,6-trichlorophenyl)acetic acid (fenac). No herbicide was found which reduced tissue ATP levels, but did not inhibit RNA and protein syntheses. The correlations established between tissue ATP levels and inhibition of RNA and protein syntheses suggested that interference with the production of energy, required to drive the biosynthetic reactions, could be the mechanism through which these herbicides expressed their effects.

Type
Research Article
Information
Weed Science , Volume 19 , Issue 4 , July 1971 , pp. 319 - 323
Copyright
Copyright © Weed Science Society of America 

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References

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