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Journal of Chemical Ecology

, Volume 12, Issue 10, pp 2011–2020 | Cite as

Dynamics of 6-methoxybenzoxazolinone in winter wheat

Effects of photoperiod and temperature
  • William W. Epstein
  • Carol N. Rowsemitt
  • Patricia J. Berger
  • Norman C. Negus
Article

Abstract

6-Methoxybenzoxazolinone (6-MBOA), a compound derivable from some freshly growing plants, is known to stimulate reproduction in some mammals and birds. Winter wheat was studied under controlled laboratory conditions to determine the effects of photoperiod and temperature on derivable 6-MBOA content. Longer photoperiods decrease the amount of derivable 6-MBOA per gram of fresh material in 4-day-old wheat seedlings. Higher temperatures also decrease the amount of derivable 6-MBOA in 4-day-old wheat. 6-MBOA content decreases as the plant ages. Comparisons of only the first centimeter above the seed produced the same age-related result. 6-MBOA is concentrated in the meristematic region with decreasing amounts found in higher portions of the plant. Roots from 9-day-old plants contain 6-MBOA. Unsprouted wheat seeds contain negligible amounts of 6-MBOA. These results demonstrate that environmental variables have a significant effect on derivable 6-MBOA levels, but that under all the regimes studied, 6-MBOA is present in freshly sprouted wheat.

Key words

6-Methoxybenzoxazolinone hydroxamic acids wheat photoperiod temperature 

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References

  1. Argandona, V.H., Luza, J.G., Niemeyer, H.M., andCorcuera, L.J. 1980. Role of hydroxamic acids in the resistance of cereals to aphids.Phytochemistry 19:1665–1668.Google Scholar
  2. Argandona, V.H., Niemeyer, H.M., andCorcuera, L.J. 1981. Effect of content and distribution of hydroxamic acids in wheat on infestation by the aphidSchizaphis graminum.Phytochemistry 20:673–676.Google Scholar
  3. Berger, P.J., Negus, N.C., Sanders, E.H., andGardner, P.D. 1981. Chemical triggering of reproduction inMicrotus montanus.Science 214:69–70.Google Scholar
  4. Berger, P.J.,Negus, N.C. andRowsemitt, C.N. 1986a. Effect of 6-methoxybenzoxazolinone on sex ratio and breeding performance inMicrotus montanus. Biol. Reprod. In press.Google Scholar
  5. Berger, P.J.,Negus, N.C., andRowsemitt, C.N. 1986b. 6-Methoxybenzoxazolinone increases egg-laying rates in bobwhite quail. In preparation.Google Scholar
  6. Butterstein, G.M., Schadler, M.H., Lysogorski, E., Robin, L., andSipperly, S. 1985. A naturally occurring plant compound, 6-methoxybenzoxazolinone, stimulates reproductive responses in rats.Biol. Reprod. 32:1018–1023.Google Scholar
  7. Klun, J.A., andBrindley, T.A. 1966. Role of 6-methoxybenzoxazolinone in inbred resistance of host plant (maize) to first-brood larvae of European corn borer.J. Econ. Entomol. 59:711–718.Google Scholar
  8. Klun, J.A., andRobinson, J.F. 1969. Concentration of two 1,4-benzoxazinones in dent corn at various stages of development of the plant and its relation to resistance of the host plant to the European corn borer.J. Econ. Entomol. 62:214–220.Google Scholar
  9. Loomis, R.S., Beck, S.D., andStauffer, J.F. 1957. The European corn borerPyrausta nubilalis (Hubn), and its principal host plant V. A chemical study of host plant resistance.Plant Physiol. 32:379–389.Google Scholar
  10. Negus, N.C., Berger, P.J., andForslund, L.G. 1977. Reproductive strategy ofMicrotus montanus.J. Mammal. 58:347–353.Google Scholar
  11. Reichman, O.J., andVan De Graaff, K.M. 1975. Association between ingestion of green vegetation and desert rodent reproduction.J. Mammal. 26:503–506.Google Scholar
  12. Reynolds, H.G. 1960. Life history notes on Merriam's kangaroo rat in southern Arizona.J. Mammal. 41:48–58.Google Scholar
  13. Rothstein, B.E., andTamarin, R.H. 1977. Feeding behavior of the insular beach vole,Microtus breweri.J. Mammal. 58:84–85.Google Scholar
  14. Rowsemitt, C.N. 1984. 6-Methoxybenzoxazolinone in plants: The reproductive trigger in a desert rodent? Program and Abstracts, The Australian Mammal Society and The American Society of Mammalogists Joint Meeting. Sydney, 9–13 July, 1984.Google Scholar
  15. Sanders, E.H., Gardner, P.D., Berger, P.J., andNegus, N.C. 1981. 6-Methoxybenzoxazolinone: A plant derivative that stimulates reproduction inMicrotus montanus.Science 214:67–69.Google Scholar
  16. Tang, C.-S., Chang, S.H., Hoo, D., andYanagihara, K.H. 1975. Gas chromatographic determination of 2(3)-benzoxazolinones from cereal plants.Phytochemistry 14:2077–2079.Google Scholar
  17. Virtanen, A.I., andHietala, P.K. 1960. Precursors of benzoxazolinone in rye plants. I. Precursor II, The aglycone.Acta Chem. Scand. 14:499–502.Google Scholar

Copyright information

© Plenum Publishing Corporation 1986

Authors and Affiliations

  • William W. Epstein
    • 1
  • Carol N. Rowsemitt
    • 2
  • Patricia J. Berger
    • 2
  • Norman C. Negus
    • 2
  1. 1.Department of ChemistryUniversity of UtahSalt Lake City
  2. 2.Department of BiologyUniversity of UtahSalt Lake City

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