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Metabolism of Simazine and Atrazine by Wild Cane

Published online by Cambridge University Press:  12 June 2017

Lafayette Thompson Jr.
Lafayette Thompson Jr.*
Affiliation:
Dep. of Agron., Univ. of Kentucky, Lexington, Kentucky 40506
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Abstract

Wild cane (Sorghum bicolor (L.) Moench) absorbed equal amounts of 2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine (atrazine) and 2-chloro-4,6-bis(ethylamino)-s-triazine (simazine). The plants metabolized 70% of the atrazine and 30% of the simazine absorbed and translocated to the shoot during 24 hr. The major metabolites formed were hydroxyderivatives and very hydrophilic metabolites which were chromatographically identical to peptide conjugates of atrazine, e.g., S-(4-ethylamino-6-isopropylamino-s-triazinyl-2)-glutathione and S-γ-L-glutamyl-(4-ethylamino-6-isopropylamino-s-triazinyl-2)-L-cysteine. Wild cane formed peptide conjugates of atrazine more rapidly than of simazine, but hydroxylation of these s-triazines occurred at approximately the same rate.

Type
Research Article
Information
Weed Science , Volume 20 , Issue 2 , March 1972 , pp. 153 - 155
Copyright
Copyright © Weed Science Society of America 

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References

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