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The Interactions of Cu++ and CN− with Paraquat Phytotoxicity to a Chlorella

Published online by Cambridge University Press:  12 June 2017

Sue-Fei Tsay ,
Jhy-Mei Lee  and
J. Q. Lynd
Sue-Fei Tsay
Affiliation:
Oklahoma State University, Stillwater
Jhy-Mei Lee
Affiliation:
Oklahoma State University, Stillwater
J. Q. Lynd
Affiliation:
Oklahoma State University, Stillwater
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Abstract

The interactions between copper (Cu++) and cyanide (CN−) with 1,1′-dimethyl-4,4′-bipyridinium ion (paraquat) on phytotoxicity to Chlorella pyrenoidosa Chick, IAC 251, were determined by measuring chlorophyll absorbance at 434 and 670 mμ. Cu++ inhibited phytotoxicity and CN− accelerated paraquat activity with highly significant mutually antagonistic interactions occurring between Cu++ (2 ppm) and CN− (16 ppm) at paraquat levels to 2 ppm.

Type
Research Article
Information
Weed Science , Volume 18 , Issue 5 , September 1970 , pp. 596 - 598
Copyright
Copyright © Weed Science Society of America 

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References

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