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Physiological Responses to Sethoxydim in Tissues of Corn (Zea mays) and Pea (Pisum sativum)

Published online by Cambridge University Press:  12 June 2017

Hideo Hosaka  and
Masae (Kubota) Takagi
Hideo Hosaka
Affiliation:
Odawara Res. Ctr., Nippon Soda Co., Ltd., 345 Takada, Odawara, Kanagawa, 250-02, Japan
Masae (Kubota) Takagi
Affiliation:
Odawara Res. Ctr., Nippon Soda Co., Ltd., 345 Takada, Odawara, Kanagawa, 250-02, Japan
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Abstract

The physiological responses of corn (Zea mays L. ‘Goldencrossbantam′) and pea (Pisum sativum L. ‘Alaska′) to sethoxydim {2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio) propyl]-3-hydroxy-2-cyclohexen-1-one} were investigated. Sethoxydim did not affect excised pea root growth at 1 × 10−4 M but inhibited excised corn root growth at concentrations of 1 × 10−8 M and above. Treating corn impeded root growth with 1 × 10−7 M sethoxydim within 4 h after treatment; however, little histological change of the roots was observed at 48 h. At 1 × 10−6 M, growth nearly stopped within 4 h after treatment, and clear cytological changes of the roots were observed at 24 and 48 h. Sethoxydim inhibited both mitosis and DNA synthesis of excised corn root tips between 4 and 48 h after treatment. Respiration of corn roots measured by oxygen uptake and the TTC (2,3,5-triphenyltetrazolium chloride) test was not affected by the herbicide directly. Sethoxydim (1 × 10−4 M) inhibited IAA-induced cell elongation of corn coleoptile and pea epicotyl by 37 and 12%, respectively. Sethoxydim selectively inhibited the growth of excised root tips of susceptible corn by affecting cell division rather than cell enlargement, and the inhibition mechanism of cell division (inhibition of mitosis) by the herbicide was not by direct inhibition of DNA synthesis or by effects on respiration.

Keywords

Mode of actioncell divisionrootcoleoptileepicotyl
Type
Physiology, Chemistry, and Biochemistry
Information
Weed Science , Volume 35 , Issue 5 , September 1987 , pp. 604 - 611
Copyright
Copyright © 1987 by the Weed Science Society of America 

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References

Literature Cited

1. Asare-Boamah, N. K. and Fletcher, R. A. 1983. Physiological and cytological effects of BAS 9052 OH on corn (Zea mays) seedlings. Weed Sci. 31:49–55.CrossRefGoogle Scholar
2. Erickson, R. O. and Sax, K. B. 1956. Rates of cell division and cell elongation in the growth of the primary root of Zea mays . Proc. Am. Phyl. Soc. 100(5):499–514.Google Scholar
3. Hess, F. D. 1982. Determining causes and categorizing types of growth inhibition induced by herbicides. ACS Symp. Ser. 181:207–230.CrossRefGoogle Scholar
4. Hosaka, H., Inaba, H., Satoh, A., and Ishikawa, H. 1984. Morphological and histological effects of sethoxydim on corn (Zea mays) seedlings. Weed Sci. 32:711–721.CrossRefGoogle Scholar
5. Hosaka, H. and (Kubota) Takagi, M. 1987. Biochemical effects of sethoxydim in excised root tips of corn (Zea mays). Weed Sci. 35:612–618.CrossRefGoogle Scholar
6. Howard, A. and Pelc, S. R. 1953. Synthesis of deoxyribonucleic acid in normal and irradiated cells and its relation to chromosome breakage. Heredity. 6 (Suppl.):261–273.Google Scholar
7. Ishikawa, H., Yamada, S., Hosaka, H., Kawana, T., Okunuki, S., and Kohara, K. 1985. Herbicidal properties of sethoxydim for the control of gramineous weeds. J. Pestic. Sci. 10:187–193.Google Scholar
8. Johnsey, P. S. and Harger, T. R. 1982. Visible and microscopic effects of BAS-9052 on johnsongrass [Sorghum halepense (L.) Pers.] and itchgrass (Rottboellia exaltata L.f.). Abstr. Weed Sci. Soc. Am. Pages 85–86.Google Scholar
9. Rost, T. L. 1977. Responses of the plant cell cycle to stress. Pages 111–143 in Rost, T. L. and Gifford, E. M. Jr., eds. Mechanisms and Control of Cell Division. Dowden, Hutchinson, and Ross, Inc., Stroudsburg, PA.Google Scholar
10. Swisher, B. A. and Corbin, F. T. 1982. Behavior of BAS 9052 OH in soybean (Glycine max) and johnsongrass (Sorghum halepense) plant and cell cultures. Weed Sci. 30:640–650.Google Scholar
11. White, P. R. 1943. A Handbook of Plant Tissue Culture. Jacques Cattel Press, Lancaster, PA. 277 pp.Google Scholar