کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10160830 | 268 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influences of iron and humic acid on the growth of the cyanobacterium Anabaena circinalis
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
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چکیده انگلیسی
Fe may play a key role in the growth of cyanobacteria, which sometimes cause water blooms in eutrophic water environments. Humic acid (HA) is also considered to be a controlling factor in algal growth, as HA is abundant around water basins and has a variety of chemical functions, including Fe-chelation and catalysis. To evaluate the influence of iron depletion and the presence of HA on the growth of Anabaena circinalis, a water bloom-forming cyanobacterium, ex situ cultivation experiments were performed using chemically defined media. The data were analyzed to characterize the effects of Fe and HA on cell growth. A Fe concentration of 10â8 to 10â7 M was the threshold for growth of the cyanobacterium. HA may have toxic effects (at [HA] > 0.01 mg C lâ1) and may reduce Fe bioavailability (at [HA] â¥Â 0.1 mg C lâ1), which delays and/or decreases the growth of the cyanobacterium.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical Engineering Journal - Volume 24, Issue 3, July 2005, Pages 195-201
Journal: Biochemical Engineering Journal - Volume 24, Issue 3, July 2005, Pages 195-201
نویسندگان
Bing-kun Sun, Yasunori Tanji, Hajime Unno,