biologia plantarum

International journal on Plant Life established by Bohumil Nìmec in 1959

Biologia plantarum 44:631-634, 2001 | DOI: 10.1023/A:1013779712106

Response of Zea mays to the Inoculation with Azospirillum on Nitrogen Metabolism under Greenhouse Conditions

C.M. Ribaudo1, D.P. Rondanini1, J.A. Curá1, A.A. Fraschina1
1 Cátedra de Bioquímica, Facultad de Agronomía, Universidad de Buenos Aires, Buenos Aires, Argentina

The maize (Zea mays L.) plants inoculated by N2-fixing bacterium Azospirillum showed increased activity of glutamate dehydrogenase (GDH) and glutamine synthetase (GS) in root cells free extracts over uninoculated control plants. Maximum differences in NADH-GDH activity were observed during the second and third weeks after sowing. The specific activity of GS showed a greater increase at the end of the assay. The percentage of nitrogen in leaves, root and foliage length, total fresh mass and nitrogenase activity were higher in inoculated plants than in the control ones.

Keywords: glutamate dehydrogenase; glutamine synthetase; maize; nitrogen content
Subjects: Azospirillum inoculation; glutamate dehydrogenase, Azospirillum inoculation; glutamine synthetase, Azospirillum inoculation; maize; Zea mays

Published: December 1, 2001  Show citation

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Ribaudo, C.M., Rondanini, D.P., Curá, J.A., & Fraschina, A.A. (2001). Response of Zea mays to the Inoculation with Azospirillum on Nitrogen Metabolism under Greenhouse Conditions. Biologia plantarum, 44(4), 631-634. doi: 10.1023/A:1013779712106
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