Influence of Nitrate, Phosphate and Herbicide Stresses on Nitrogenase Activity and Growth of Cyanobacteria Isolated from Paddy Fields

Gulten OKMEN (kurucuoglu); Gonul Donmez; Sedat Donmez

Influence of Nitrate, Phosphate and Herbicide Stresses on Nitrogenase Activity and Growth of Cyanobacteria Isolated from Paddy Fields

Year 2007, Volume: 1 Issue: 1, 57 - 62, 01.02.2007

Gulten OKMEN (kurucuoglu) Gonul Donmez Sedat Donmez

Abstract

Samples were collected from paddy fields in Corum-TURKIYE. Nitrogen-free BG-11 medium was used for isolation of nitrogen fixing cyanobacteria. Acetylene reduction technique was used to determine the effects of different chemical agents on the nitrog enase activities of t he cyanobacteria, which wer e identified at the genus level. Nodularia showed the highest nitrogenase activity (0.006 ethylene µl/ mg.h) at 10mM nitrate concentration. At 25mM phosphate concentration, Nodularia showed the highest nitrogenase activity (0.006 ethylene µl/ mg.h ). The highest tolerances for the herbicides were present in Nodularia (0.06 ethylene µl/ mg.h) for bensulphuron (50µg /ml) and Nostoc 6 ethylene µl/ mg.h (for molinate 100µg / ml)

Keywords

Cyanobacteria, nitrogenase activity, isolation, environmental factors

Year 2007, Volume: 1 Issue: 1, 57 - 62, 01.02.2007

Gulten OKMEN (kurucuoglu) Gonul Donmez Sedat Donmez

Abstract

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Details

Other ID	JA53NF42VK
Journal Section	Research Article
Authors	Gulten OKMEN (kurucuoglu) This is me Gonul Donmez This is me Sedat Donmez This is me
Publication Date	February 1, 2007
Published in Issue	Year 2007 Volume: 1 Issue: 1

Cite

APA	(kurucuoglu), G. O., Donmez, G., & Donmez, S. (2007). Influence of Nitrate, Phosphate and Herbicide Stresses on Nitrogenase Activity and Growth of Cyanobacteria Isolated from Paddy Fields. Journal of Applied Biological Sciences, 1(1), 57-62.
AMA	(kurucuoglu) GO, Donmez G, Donmez S. Influence of Nitrate, Phosphate and Herbicide Stresses on Nitrogenase Activity and Growth of Cyanobacteria Isolated from Paddy Fields. J.appl.biol.sci. February 2007;1(1):57-62.
Chicago	(kurucuoglu), Gulten OKMEN, Gonul Donmez, and Sedat Donmez. “Influence of Nitrate, Phosphate and Herbicide Stresses on Nitrogenase Activity and Growth of Cyanobacteria Isolated from Paddy Fields”. Journal of Applied Biological Sciences 1, no. 1 (February 2007): 57-62.
EndNote	(kurucuoglu) GO, Donmez G, Donmez S (February 1, 2007) Influence of Nitrate, Phosphate and Herbicide Stresses on Nitrogenase Activity and Growth of Cyanobacteria Isolated from Paddy Fields. Journal of Applied Biological Sciences 1 1 57–62.
IEEE	G. O. (kurucuoglu), G. Donmez, and S. Donmez, “Influence of Nitrate, Phosphate and Herbicide Stresses on Nitrogenase Activity and Growth of Cyanobacteria Isolated from Paddy Fields”, J.appl.biol.sci., vol. 1, no. 1, pp. 57–62, 2007.
ISNAD	(kurucuoglu), Gulten OKMEN et al. “Influence of Nitrate, Phosphate and Herbicide Stresses on Nitrogenase Activity and Growth of Cyanobacteria Isolated from Paddy Fields”. Journal of Applied Biological Sciences 1/1 (February 2007), 57-62.
JAMA	(kurucuoglu) GO, Donmez G, Donmez S. Influence of Nitrate, Phosphate and Herbicide Stresses on Nitrogenase Activity and Growth of Cyanobacteria Isolated from Paddy Fields. J.appl.biol.sci. 2007;1:57–62.
MLA	(kurucuoglu), Gulten OKMEN et al. “Influence of Nitrate, Phosphate and Herbicide Stresses on Nitrogenase Activity and Growth of Cyanobacteria Isolated from Paddy Fields”. Journal of Applied Biological Sciences, vol. 1, no. 1, 2007, pp. 57-62.
Vancouver	(kurucuoglu) GO, Donmez G, Donmez S. Influence of Nitrate, Phosphate and Herbicide Stresses on Nitrogenase Activity and Growth of Cyanobacteria Isolated from Paddy Fields. J.appl.biol.sci. 2007;1(1):57-62.