Nitrogenase Activity of Soybean Root Nodules Inhibited After Heat Stress
Abstract:
High temperature in general was found to be the major factor affecting symbiotic nitrogen fixation. High temperature of 35EC when applied to the roots only didn’t effect nitrogen fixation. However, small variances were recorded at 40EC in all cultivars. Fixation was severely inhibited at 45EC in all cultivars. The cultivar sable was found to be the most tolerant to high temperatures and it also recovered from heat stress better than the other cultivars. Although, cultivar bragg was not as heat tolerant as other but this recover better then other cultivars studied. Which were very similar in their sensitivities to heat stress.
How to cite this article
Mohammad Ibrahim Keerio , 2001. Nitrogenase Activity of Soybean Root Nodules Inhibited After Heat Stress. Journal of Applied Sciences, 1: 297-300.
REFERENCES
Brun, W.A., 1978. Assimilation, Soybean Physiology, Agronomy and Utilization. Academic Press, New York, pp: 45-73
Dart, P.J., J.M. Day, R. Islam and J. Dobereiner, 1976. Symbiosis in Tropical Grain Legumes-Some Effects of Temperature and the Composition of the Rooting Medium. In: Nitrogen Fixation in Plants, Nutman, P.S. (Ed.). Cambridge University Press, Cambridge, pp: 361-384
Dart, P.J. and J.M. Day, 1971. Effects of incubation temperature and oxygen tension on nitrogenase activity of legume root nodule. Plant Soil, 35: 167-184.
Direct Link
Neves, M.C.P., A.D. Didonet, F.F. Duque and J. Dobereiner, 1985. Rhizobium strain effects on nitrogen transport and distribution in soybeans. J. Exp. Bot., 36: 1179-1192.
CrossRef Direct Link
Gibson, A.H., 1977. The Influence of the Environment and Managerial Practices on the Legume-Rhizobium Symbiosis. In: A Treatise on Dinitrogen Fixation Section IV: Agronomy and Ecology, Hardy, W.F. and A.M. Gibson (Eds.). John Wiley and Sons, New York, pp: 393-450
Granfiali, U., 1981. Biological nitrogen fixation in relation to environmental factors and functioning of natural ecosystems. Ecol. Bull., 33: 131-144.
Habte, M., 1983. Short communication. Apparatus for the nitrogenase (C2 H2-C2 H4) assay of intact whole plant-soil systems. Soil Biol. Biochem., 15: 719-720.
Hardy, R.W.F., R.D. Holsten, E.K. Jackson and R.C. Burns, 1968. The acetylene-ethylene assay for N2 fixation: Laboratory and field evaluation. Plant Physiol., 43: 1185-1207.
CrossRef PubMed Direct Link
Hartwig, U., B. Boller and J. Nosberger, 1987. Oxygen supply limits nitrogenase activity of clover nodules after defoliation. Ann. Bot., 59: 285-291.
Direct Link
Keerio, M.I. and J.M. Wilson, 1998. Effects of high temperatures on nitrogen fixation in soybean cultivars. Dev. Plant Soil Sci., 79: 99-102.
Kuzma, M.M. and D.B. Layzell, 1994. Acclimation of soybean nodules to changes in temperature. Plant Physiol., 106: 263-270.
Direct Link
Masterson, C.L. and P.M. Murphy, 1980. The Acetylene Reduction Technique Recent Advances in Biological Nitrogen Fixation. Edward Arnold, India, pp: 8-33
Pulver, E.L., F. Brockman and H.C. Wien, 1982. Nodulation of soybean cultivars with Rhizobium spp. and their response to inoculation with R. japonicum. Crop Sci., 22: 1065-1070.
Direct Link
Rosendahl, L., 1984. Rhizobium strain effects on yield and bleeding sap amino compounds in Pisum sativum. Physiol. Plant., 60: 215-220.
CrossRef
Sinclair, T.R. and P.R. Weisz, 1985. Response to soil temperature of dinitrogen fixation (acetylene reduction) rates by field-grown soybeans. Agron. J., 77: 685-688.
Direct Link
Sprent, J.I., F.R. Minchin and R.J. Thomas, 1983. Environmental effects on the physiology of nodulation and nitrogen fixation. Genet. Nodulat., 16: 269-317.
Steward, W.D., 1966. Nitrogen Fixation in Plants. Athlone Press, London, pp: 186
Vessey, J.K., K.B. Walsh and D.B. Layzell, 1988. Oxygen limitation of N2 fixation in stem-girdled and nitrate treated soybean. Physiol. Plant., 73: 113-121.
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