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Effect of Various Herbicides on Glucose Metabolism in Root Tissue of Garden Peas. II. Plant Growth Regulators and other Herbicides

Published online by Cambridge University Press:  12 June 2017

John B. Bourke ,
J. S. Butts  and
S. C. Fang
John B. Bourke
Affiliation:
Department of Agricultural Chemistry, Oregon Agricultural Experiment Station and Department of Chemistry, Oregon State University, Corvallis
J. S. Butts
Affiliation:
Department of Agricultural Chemistry, Oregon Agricultural Experiment Station and Department of Chemistry, Oregon State University, Corvallis
S. C. Fang
Affiliation:
Department of Agricultural Chemistry, Oregon Agricultural Experiment Station and Department of Chemistry, Oregon State University, Corvallis
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Abstract

The effects of thirteen plant growth regulators and herbicides on glucose absorption, metabolism, and incorporation in pea root tissues were studied. Both indoleacetic acid (IAA) and gibberellic acid (GA) caused no effects, while α-naphthalene-acetic acid (α-NAA) and β-naphthaleneacetic acid (β-NAA) caused an increase in catabolic and a decrease in anabolic processes, with the C-1 carbon undergoing the largest change. The absorption of glucose was also inhibited considerably by the synthetic auxins. The carbamates, isopropyl N-phenylcarbamate (IPC), n-Ethyl-N,N-di-n-propylthiolcarbamate (EPTC), and 3-(p-chlorophenyl)-1,1-dimethylurea (monuron) inhibited slightly the glucose absorption. All affected the catabolic process to a certain extent while only IPC caused a change in the anabolic process. Both 2,3,6-trichlorobenzoic acid (TBA) and 2,3,5-triiodobenzoic acid (TIBA) decreased glucose absorption and increased glucose-1-C14 catabolism. TIBA also affected the anabolic process. Other herbicides, 3-amino-1,2,4-triazole (amitrole), maleic hydrazide (MH), 2-chloro-4,6-bis(ethylamino)-s-triazine (simazine), and 2,2-dichloropropionic acid (dalapon) caused varied degrees of inhibition to glucose absorption. Both simazine and dalapon increased C-1 catabolism and exerted no effect on the anabolic process. Only dalapon altered the catabolism of glucose-6-C14. Amitrole and MH decreased the over-all catabolic process with no effect on the pathway; both chemicals increased the anabolic process.

Type
Research Article
Information
Weeds , Volume 12 , Issue 4 , October 1964 , pp. 272 - 276
Copyright
Copyright © 1964 Weed Science Society of America 

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References

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