Several components of global change alter nitrifying and denitrifying activities in an annual grassland
نویسندگان
چکیده
‡Université Paris-Sud, Laboratoire d’Ecologie, Systématique et Evolution, UMR CNRS 8079, F-91405 Orsay, France, §Ecologie Microbienne, UMR 5557 (CNRS – Université Lyon 1 – USC 1193 INRA), 43 Bd du 11 Novembre 1918, F-69622 Villeurbanne, France, ¶Department of Biological Sciences and Merriam-Powell Center for Environmental Research, Box 5640, Northern Arizona University, Flagstaff, AZ 86011–5640, USA, and **Department of Global Ecology, Carnegie Institution of Washington, 260 Panama Street, Stanford, CA 94 305, USA
منابع مشابه
[Application of nitrifying and denitrifying processes to waste management of aquatic life support in space].
Since a biological filter with nitrifying bacteria was firstly applied to aquatic animal experiments in IML-2 mission, the reactor system has been further studied to combine both nitrifying and denitrifying reactions under aerobic environment allowing an efficient removal of inorganic nitrogen from animal wastes. The isolated denitrifying bacteria had an activity under aerobic condition with ri...
متن کاملSoil Environmental Conditions and Microbial Build-Up Mediate the Effect of Plant Diversity on Soil Nitrifying and Denitrifying Enzyme Activities in Temperate Grasslands
Random reductions in plant diversity can affect ecosystem functioning, but it is still unclear which components of plant diversity (species number - namely richness, presence of particular plant functional groups, or particular combinations of these) and associated biotic and abiotic drivers explain the observed relationships, particularly for soil processes. We assembled grassland communities ...
متن کاملEcology of Nitrogen Fixing, Nitrifying, and Denitrifying Microorganisms in Tropical Forest Soils
Soil microorganisms play important roles in nitrogen cycling within forest ecosystems. Current research has revealed that a wider variety of microorganisms, with unexpected diversity in their functions and phylogenies, are involved in the nitrogen cycle than previously thought, including nitrogen-fixing bacteria, ammonia-oxidizing bacteria and archaea, heterotrophic nitrifying microorganisms, a...
متن کاملResponse of soil microbiota to the addition of 3 , 3 ′ - diaminobenzidine
3,3′-Diaminobenzidine was applied at doses of 5, 10, 25, and 50 mg kg−1 of soil and their effects were evaluated on indigenous soil microbial communities (viable aerobic bacteria, fungal populations, aerobic N2-fixing bacteria, denitrifying, and nitrifying bacteria), and soil enzymatic activities (acid and alkaline phosphatases, arylsulfatase, and dehydrogenase). At doses of 5 or 10 mg kg−1, 3,...
متن کاملInfluence of operating parameters on the biodegradation of steroid estrogens and nonylphenolic compounds during biological wastewater treatment processes.
This study investigated operational factors influencing the removal of steroid estrogens and nonylphenolic compounds in two sewage treatment works, one a nitrifying/denitrifying activated sludge plant and the other a nitrifying/denitrifying activated sludge plant with phosphorus removal. Removal efficiencies of >90% for steroid estrogens and for longer chain nonylphenol ethoxylates (NP4-12EO) w...
متن کامل