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ID 41175
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An Experiment on the Sulfate Reducing Activity of Sea Bottom Mud
著者
浅川 末三
NDC
水産業
抄録
古坂が水田土壌中の硫酸還元菌群の活性度をワールブルグ検圧計を用いて測定する方法を考案した.それを養殖場の海泥に応用した.即ち,
1. 海泥中に常在する呼吸基質を洗瀞除去する前処理を加えるならば,古坂の法が応用できることを知った.
2. 養殖場内外の海泥につき夏,秋および冬季について測定した結果,硫酸還元菌群の活性は2cmぐらいまでの表層部には全く認められず,10cmほどの深層部では夏季よりも秋季に強い傾向があり,冬季は全く認められなかった.
3. 硫酸還元菌群の活性の強弱と硫化物量とは必ずしも相関しないことを論じた.
抄録(英)
A method of the Warburg's manometry was reported by C. FURUSAKA for the evaluation of the activity of a sulfate reducer in paddy field soil. It was found that this method could be applied for sea bottom mud, if the mud were washed thrice in advance with a non-oxygen 3% sodium chloride solution in order to remove the sulfate present in the sample.

According to his definition, the activity of hydrogen uptake was designated as a hydrogenase activity of mud (HA value in Table 1). In addition of a sulfite solution to the mud a significant increase in the rate of hydrogen uptake was further observed, the increment caused by the addition of the sulfite solution was designated as a sulfate reducing activity of mud (SRA value in Table 2), which is caused by the action of sulfate reducing bacteria in the mud.

The mud samples collected from a fish farm bottom in the Seto Inland Sea were determined by a modified method. Considering the results in Table 2, there was no activity (SRA) at the layer from 0 to 2 cm mud depth, but considerable activity at the 10 cm mud depth. Moreover, it was suggested that the activities varied seasonally, rather higher in autumn than in summer and null in winter.
掲載誌名
広島大学水畜産学部紀要
11巻
1号
開始ページ
59
終了ページ
64
出版年月日
1972-07-31
出版者
広島大学水畜産学部
ISSN
0440-8756
NCID
NAID
言語
日本語
NII資源タイプ
紀要論文
広大資料タイプ
学内刊行物(紀要等)
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
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