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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Influences of iron and humic acid on the growth of the cyanobacterium Anabaena circinalis
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 10−8 to 10−7 M was the threshold for growth of the cyanobacterium. HA may have toxic effects (at [HA] > 0.01 mg C l−1) and may reduce Fe bioavailability (at [HA] ≥ 0.1 mg C l−1), 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
نویسندگان
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