Hostname: page-component-cd9895bd7-q99xh Total loading time: 0 Render date: 2024-12-22T20:43:55.531Z Has data issue: false hasContentIssue false

Incorporation of Atrazine Side-Chain into Amino Acids of Corn

Published online by Cambridge University Press:  12 June 2017

Donald P. Schultz
Affiliation:
U. S. Dep. Int., Fish-Pesticide Laboratory, R. D. 1, Columbia, Missouri
B. G. Tweedy
Affiliation:
Univ. of Missouri, Columbia, Missouri

Abstract

Seedlings of corn (Zea mays L., var. GT-112 RfRf and GT-112, resistant and susceptible, respectively) to 2-chloro-4-ethylamino-6-isopropylamino-s-triazine (atrazine) were grown 48 hr in sterile Hoagland's solution containing 14C-ethyl-labeled atrazine. More incorporation of the 14C-ethyl side-chain into free amino acids was found in the roots and shoots of GT-112 RfRf than GT-112, based on radioactivity. More radioactivity was found in roots of susceptible plants than in resistant plants; however, the trend was reversed in the shoots.

Type
Research Article
Copyright
Copyright © Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

1. Fowden, L. 1965. Origins of the amino acids, p. 361390. In: Bonner, J. and Varner, J. E., Ed. Plant Biochemistry. Academic Press.Google Scholar
2. Hamilton, R. H. 1964. Tolerance of several grass species to 2-chloro-s-triazine herbicides in relation to degradation and content of benzoxazinone derivatives. J. Agr. Food. Chem. 12:1227.CrossRefGoogle Scholar
3. Hamilton, R. H. and Moreland, D. E. 1962. Simazine: Degradation by corn seedlings. Science 135:373374.Google Scholar
4. Meister, A. 1965. Biochemistry of the Amino Acids, p. 5931084. Vol. 2. Academic Press.Google Scholar
5. Piez, K. A. and Morris, L. 1960. A modified procedure for automatic analysis of amino acids. Anal. Biochem. 1:187210.Google Scholar
6. Ries, S. K., Chmiel, H., Dilley, D. R., and Filner, P. 1967. The increase in nitrate reductase activity and protein content of plants treated with simazine. Proc. Nat. Acad. Sci. U. S. Am. 58:526532.Google Scholar
7. Roth, W. and Knüsli, E. 1961. Beitrag zur Kenntnis der Resistanz-phanomene einzelner Pflanzen gegenuber dem phytotoxischen Wirkstoff Simazin. Experientia 17:312313.CrossRefGoogle Scholar
8. Shimabukuro, R. H. 1967. Atrazine metabolism and herbicidal selectivity. Plant Physiol. 42:12691276.Google Scholar
9. Tweedy, J. A. and Ries, S. K. 1967. Effect of simazine on nitrate reductase activity in corn. Plant Physiol. 42:280282.Google Scholar