書誌事項
- タイトル別名
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- Effects of Aquatic Humic Substances on the Growth of the Cyanobacterium Microcystis aeruginosa.
- ヨウゾン フミン ブッシツ ノ ランソウ Microcystis aeruginosa ノ ゾウショク ニ オヨボス エイキョウ
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Aquatic humic substances (AHSs) from the eutrophic Lake Kasumigaura were isolated using XAD-8 resin. The effects of these isolated AHSs on the growth of Microcystis aeruginosa cultures were evaluated. M. aeruginosa was isolated from algal blooms in Lake Kasumigaura and grown in a chmically defined medium under iron limitation. The production of siderophores, iron-specific complexing agents, by M. aeruginosa was also examined.<br> Under iron limitation, M. aeruginosa was confirmed to produce hydroxamate-type siderophores; however, they were not effective to enable substantial recovery of the growth rate. The fulvic acid (lower molecular-size fraction of AHSs) isolated from Lake Kasumigaura was found to significantly inhibit the growth of M. aeruginosa. The fulvic acid at 2 mg dry weight l-1, the same level as in the lake, significantely inhibited the growth of M. aeruginosa even though siderophores were produced. This inhibition was probably due to a deficiency of iron caused by iron complexation with the fulvic acid. These results suggest that AHSs, through their iron complexation reactions, may play an important role in formation of M. aeruginosa algal blooms.
収録刊行物
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- 水環境学会誌
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水環境学会誌 22 (7), 555-560, 1999
公益社団法人 日本水環境学会
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キーワード
詳細情報 詳細情報について
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- CRID
- 1390001205080120064
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- NII論文ID
- 10007661817
- 10004452795
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- NII書誌ID
- AN10372439
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- COI
- 1:CAS:528:DyaK1MXlslGmur4%3D
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- ISSN
- 18813690
- 09168958
- http://id.crossref.org/issn/09168958
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- NDL書誌ID
- 4802393
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可