Nitrate Reductase Activity and Nitrite in Native Pyrenoids Purified from the Green Alga Bryopsis maxima
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概要
- 論文の詳細を見る
The native, starchless pyrenoids purified from Bryopsis maxima showed NADH-nitrate reductase [NR, EC 1.6.6.1] activity and contained nitrite. The specific activity of NR was 0.024 μmol NO_2 formed per min per mg of protein. The value was 80 times greater than that in the crude extract of chloroplasts. The amount of nitrite in the pyrenoids was 2.37 μmol per mg of protein, showing that nitrite was concentrated by a factor of 66 times. These results suggest a physiological role for pyrenoids in the assimilation of nitrate.
- 日本植物生理学会の論文
著者
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Okada Mitsumasa
Department Of Biomolecular Science Faculty Of Science Toho University
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Okabe Yasuyuki
Department Of Biomolecular Science Faculty Of Science Toho University
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Okabe Yasuyuki
Department Of Biology Faculty Of Science Toho University
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Okada Mitsumasa
Department Of Biochemistry Faculty Of Science University Of Tokyo
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