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Effects of Triazines on Energy Relations of Mitochondria and Chloroplasts

Published online by Cambridge University Press:  12 June 2017

O. C. Thompson ,
B. Truelove  and
D. E. Davis
O. C. Thompson
Affiliation:
Dep. of Bot. and Microbiol., Auburn University, Auburn, AL 36830
B. Truelove
Affiliation:
Dep. of Bot. and Microbiol., Auburn University, Auburn, AL 36830
D. E. Davis
Affiliation:
Dep. of Bot. and Microbiol., Auburn University, Auburn, AL 36830
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Abstract

The effects of eight s-triazines on respiration of (Phaseolus vulgaris L. ‘Black Valentine’) bean and rat liver mitochondria and on cyclic photophosphorylation of pea (Pisum sativum L. ‘Thomas Laxton’) chloroplasts were determined. All triazines inhibited state 3 respiration and cyclic photophosphorylation. The degree of inhibition was similar in both rat liver and bean mitochondria. Prometryne [2,4-bis-(isopropylamino)-6-(methylthio)-s-triazine] was the most potent inhibitor of both respiration and cyclic photophosphorylation. Triazines with the methylthio group showed the most activity, followed by those with the methoxy and chloro substituents in that order.

Type
Research Article
Information
Weed Science , Volume 22 , Issue 2 , March 1974 , pp. 164 - 166
Copyright
Copyright © 1974 by the Weed Science Society of America 

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