Extracellular enzymatic activities in subsurface water of eutrophic Lake Chełmżyńskie, Poland
نویسندگان
چکیده
منابع مشابه
Treatment of Eutrophic-lake Water by Free Water Surface Wetland
In China, with the rapid urbanization and industrialization, and highly accelerated economic development have resulted in degradation of water resource. The water quality deterioration usual result from eutrophication in most cases, so how to dispose this type pollution water higher efficiently is an urgent task. Hower, different with traditional technology, constructed wetlands are effective t...
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Extracellular enzymatic activities initiate microbially-driven heterotrophic carbon cycling in subsurface sediments. While measurement of hydrolytic activities in sediments is fundamental to our understanding of carbon cycling, these measurements are often technically difficult due to sorption of organic substrates to the sediment matrix. Most methods that measure hydrolysis of organic substrat...
متن کاملActivity in Eutrophic Water
The aand l-glucosidase activity in natural samples can be readily measured during short incubation times (20 min) by using the artificial substrates 4-methylumbelliferyl-a-D-glucoside and 4-methylumbelliferyli--Dglucoside. The apparent Km of both aand ,I-glucosidase for these respective substrates is 0.01 ,uM. The homologous disaccharides maltose and cellobiose competitively inhibit aand I-gluc...
متن کاملOccurrence of Chitinolytic Bacteria in Water and Bottom Sediment of Eutrophic Lakes in Iławskie Lake District
A study was carried out on the occurrence of chitinolytic bacteria inhabiting surface water, water above the sediment and bottom sediments of lakes: Jeziorak, Jeziorak Maty and Tynwald. The greatest amounts of them were found in demersal water and in bottom sediment surface stratum. However, the percentage share of chitinolytic bacteria proved greater in deep water (9.35%) than in bottom sedime...
متن کاملPotential of constructed wetlands in treating the eutrophic water: evidence from Taihu Lake of China.
Three parallel units of pilot-scale constructed wetlands (CWs), i.e., vertical subsurface flow (VSF), horizontal subsurface flow (HSF) and free water surface flow (FWS) wetland were experimented to assess their capabilities in purifying eutrophic water of Taihu Lake, China. Lake water was continuously pumped into the CWs at a hydraulic loading rate of 0.64 m d(-1) for each treatment. One year's...
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ژورنال
عنوان ژورنال: Journal of Freshwater Ecology
سال: 2013
ISSN: 0270-5060,2156-6941
DOI: 10.1080/02705060.2013.793220