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Effect of Alachlor, Propachlor, and Prynachlor on GA3-induced Production of Protease and α-Amylase

Published online by Cambridge University Press:  12 June 2017

V. Sivaji Rao  and
William B. Duke
V. Sivaji Rao
Affiliation:
Dep. Seed and Veg. Sci., Cornell Univ., Geneva, NY 14456 Cornell Univ., Ithaca, NY 14853
William B. Duke
Affiliation:
Dep. Seed and Veg. Sci., Cornell Univ., Geneva, NY 14456
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Abstract

Alachlor [2-chloro-2′,6′-diethyl-N(methoxymethyl)-acetanilide], propachlor (2-chloro-N-isopropylacetanilide) and prynachlor [2-chloro-N-(1-methyl-2-propynyl)acetanilide], inhibited gibberellic acid (GA3),-induced production of protease and α-amylase in deembryonated barley (Hordeum vulgare L, ‘Schuyler’) seed. Production of protease was more sensitive to these herbicides than α-amylase. The degree of inhibition of protease and α-amylase production caused by alachlor was equivalent to that caused by cycloheximide, puromycin and actinomycin-D, known protein and nucleic acid synthesis inhibitors. Higher GA3 concentrations reversed the inhibition of protease and α-amylase synthesis caused by alachlor but did not reduce the effect of alachlor on barley seed germination and growth. It is concluded that the inhibition of protease and α-amylase production by alachlor is perhaps only one of several effects on early seed germination and seedling development.

Type
Research Article
Information
Weed Science , Volume 24 , Issue 6 , November 1976 , pp. 616 - 618
Copyright
Copyright © 1977 by the Weed Science Society of America 

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References

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