کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
680279 | 1459968 | 2015 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Assessment of the factors contributing to the variations in microcystins biodegradability of the biofilms on a practical biological treatment facility
ترجمه فارسی عنوان
ارزیابی عوامل موثر بر تغییرات بیولوژیکی میکروسستین ها در محیط بیولوژیکی
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کلمات کلیدی
MCsBTFMCLRf.c.mlrA geneCBSMicrocystinsWTPMicrocystin-RRqPCRmicrocystin-YRfinal concentrationdissolved oxygen - اکسیژن محلولBiofilm - بیوفیلمBiodegradation - تجزیه زیستیSeasonal variation - تنوع فصلیCyanobacterial blooms - شکوفه های CyanobacterialMicrocystin - میکروتیستینmicrocystin-LR - میکروسیستین LRquantitative polymerase chain reaction - واکنش زنجیره ای پلیمراز کمیWater treatment plant - کارخانه تصفیه آبhigh performance liquid chromatography - کروماتوگرافی مایع با کارایی بالاHPLC - کروماتوگرافی مایعی کارا
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
چکیده انگلیسی
This study revealed the biotic and abiotic parameters driving the variations in microcystins (MCs) biodegradability of a practical biological treatment facility (BTF). Results showed that similar trends of seasonal variation were seen for microcystin-LR (MCLR) biodegradability of biofilms on the BTF and indigenous MCLR-degrader population, where both peaks co-occurred in October, following the peaks of natural MCLR concentration and water temperature observed in August. The lag period might be required for accumulation of MCLR-degraders and MCLR-degrading enzyme activity. The MCLR-degrader population was correlated to temperature, MCLR and chlorophyll-a concentration in water where the biofilms submerged, indicating that these abiotic and biotic parameters exerted direct and/or indirect influences on seasonal variation in MCLR-biodegradability. In comparison, no effect of other co-existing MCs on biodegradation of one MC was observed. However, proliferation of MC-degraders along biodegradation processes positively responded to total amount of MCs, suggesting that multiple MCs contributed additively to MC-degrader proliferation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 175, January 2015, Pages 463-472
Journal: Bioresource Technology - Volume 175, January 2015, Pages 463-472
نویسندگان
Jieming Li, Kazuya Shimizu, Haruna Akasako, Zhijiang Lu, Shohei Akiyama, Masafumi Goto, Motoo Utsumi, Norio Sugiura,