نتایج جستجو برای: nutrients uptake

تعداد نتایج: 167848  

Journal: :Journal of environmental sciences 2010
Xiaohong Zhou Guoxiang Wang

The ecological floating bed system is a natural alternative to technical methods of wastewater treatment and involves complex processes induced by plants or microorganisms in the wastewater. This study aimed to identify nutrient concentration variations during Oenanthe javanica (Blume) DC growth and decay in the ecological floating bed system. Results showed that the third-order polynomial equa...

Journal: :South African Journal of Enology & Viticulture 2017

Journal: :Journal of Soil Sciences and Agricultural Engineering 2017

2006
J. Denis Newbold Thomas L. Bott Louis A. Kaplan Charles L. Dow John K. Jackson Anthony K. Aufdenkampe Lara A. Martin David J. Van Horn Aaron A. de Long

Uptake of nutrients and organic C was measured once annually between 2000 and 2002 in each of 10 streams within the water-supply source areas for New York City. Nutrients (PO4 3– and NH4 þ) and organic C (glucose and arabinose) were injected into the streams for 1 to 2 h, and uptake lengths were estimated from the longitudinal declines in downstream concentration relative to that of a conservat...

2015
Heather E. Adams Byron C. Crump George W. Kling

Storm events can pulse nutrients and carbon from soils and provide an important subsidy to food webs in oligotrophic streams and lakes. Bacterial nutrient limitation and the potential response of stream aquatic bacteria to storm events was investigated in arctic tundra environments by manipulating both water temperature and inorganic nutrient concentrations in short (up to 4 days) and long dura...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2009
Mohan R Kaadige Ryan E Looper Sadhaasivam Kamalanaadhan Donald E Ayer

Glucose and glutamine are abundant nutrients required for cell growth, yet how cells sense and adapt to changes in their levels is not well understood. The MondoA transcription factor forms a heterocomplex with its obligate partner Mlx to regulate approximately 75% of glucose-dependent transcription. By mediating glucose-induced activation of thioredoxin-interacting protein (TXNIP), MondoA:Mlx ...

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