Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-22T19:41:42.404Z Has data issue: false hasContentIssue false

Effect of Several Herbicides on Proteolytic Activity of Squash Seedlings

Published online by Cambridge University Press:  12 June 2017

Floyd M. Ashton
Affiliation:
Department of Botany, University of California, Davis
Donald Penner
Affiliation:
Department of Botany, University of California, Davis
Sigmar Hoffman
Affiliation:
Department of Botany, University of California, Davis

Abstract

The proteolytic activity of the cotyledons of squash (Cucurbita maxima Duchesne) increases several fold during germination. The different herbicides varied widely in their ability to inhibit this increase. An attempt was made to correlate this inhibition with inhibition of growth. A direct correlation was evident only when the inhibition of proteolytic activity was severe or very slight to nonexistent.

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. Anson, M. L. 1938. The estimation of pepsin, trypsin, papain, and cathepsin with hemoglobin. J. Gen. Physiol. 22:7989.Google Scholar
2. Foy, C. L. and Penner, D. 1965. Effect of inhibitors and herbicides on tricarboxylic acid cycle substrate oxidation by isolated cucumber mitochondria. Weeds 13:226231.Google Scholar
3. Key, J. L. 1964. Ribonucleic acid and protein synthesis as essential processes for cell elongation. Plant Physiol. 39:365370.Google Scholar
4. Kunitz, M. 1947. Crystalline soybean trypsin inhibitor. II. General properties. J. Gen. Physiol. 30:291310.Google Scholar
5. Mann, J. D., Jordan, L. S., and Day, B. E. 1965. A survey of herbicides for their effect upon protein synthesis. Plant Physiol. 40:840843.Google Scholar
6. Penner, D. and Ashton, F. M. 1966. Proteolytic enzyme control in squash cotyledons. Nature 212:935936.Google Scholar
7. Penner, D. and Ashton, F. M. 1967. Hormonal control of proteinase activity in squash cotyledons. Plant Physiol. 42:791796.Google Scholar
8. Switzer, C. M. 1957. Effects of herbicides and related chemicals on oxidation and phosphorylation by isolated soybean mitochondria. Plant Physiol. 32:4244.Google Scholar
9. Wain, R. L. 1963. 3:5-Dihalogeno-4-hydroxybenzonitrile: New herbicides with molluscicidal activity. Nature 200:28.Google Scholar
10. Warburg, D. 1948. Wasserstoffubertragende Fermente. Werner Saenger Press, Berlin. 369 p.Google Scholar
11. West, S. H., Hanson, J. B., and Key, J. L. 1960. Effect of 2,4-dichlorophenoxyacetic acid on the nucleic acid and protein content of seedling tissue. Weeds 8:333340.Google Scholar
12. Wiley, L. and Ashton, F. M. 1967. Influence of the embryonic axis on protein hydrolysis in cotyledons of Cucurbita maxima . Physiol. Plant. 20:688–686.Google Scholar