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ID 30149
本文ファイル
別タイトル
Effects of temperature on the uptake kinetics of ammonia-N and nitrate-N by Porphyra yezoensis thalli.
著者
高尾 允英
キーワード
ammonia
nitrate
Porphyra
temperature
uptake
NDC
植物学
抄録(英)
The uptake kinetics for ammonia-N and nitrate-N by Porphyra yezoensis thalli were examined under various temperatures (4-18°C). The carbon and nitrogen contents of the frond were 341.9±24.8 and 52.5±10.4 mg•g dry wt-1, respectively, and the C/N ratio was 6.80±1.58. The uptake parameter, Ks, for ammonia-N varied from 48.3 to 182.7 µgN•l-1, and Vm was from 0.0033 to 0.0082 h-1. The Ks for nitrate-N varied from 10.1 to 53.9 µgN•l-1, and the Vm was from 0.0005 to 0.0013 h-1. These parameters both for ammonia-N and nitrate-N showed the maxima at 14°C. Comparing the Vm of ammonia-N with that of nitrate-N under the same temperature, ammonia-N was taken 6.3-9.4 times faster than nitrate-N by the frond. These parameters expressed in common logarithms were converted by the quadratic equations to absolute temperatures; for ammonia-N, VA=S × 10-29.642(103/T)2+206.93(103/T)-363.23/(S+10-39.556(103/T)2+ 276.17(103/ T)-479.77) and for nitrate-N, VN = S × 10-32.464(103/T)2+227.45(103/T)-401.36/(S+10-37.051(103/T)2+257.50(103/T)-445.69). These equations consisting of the major factors such as ammonia-N and nitrate-N concentrations and temperature which are controlling the growth of Nori frond are considered to be useful in estimating the production capacity of Nori cultural ground.
掲載誌名
藻類
36巻
1号
開始ページ
37
終了ページ
42
出版年月日
1988-03-10
出版者
日本藻類学会
ISSN
0038-1578
NCID
言語
日本語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
部局名
生物圏科学研究科