Results 51 to 60 of about 12,002 (245)

Comparison of ecosystem processes in a woodland and prairie pond with different hydroperiods [PDF]

open access: yes, 2017
Shallow lakes and ponds constitute a significant number of water bodies worldwide. Many are heterotrophic, indicating that they are likely net contributors to global carbon cycling. Climate change is likely to have important impacts on these waterbodies.
Ensley-Field, Mira W.   +10 more
core   +2 more sources

Ammonium and organic carbon co-removal under feammox-coupled-with-heterotrophy condition as an efficient approach for nitrogen treatment

open access: yesScientific Reports, 2021
Nitrification is the rate limiting step in the nitrogen removal processes since nitrifiers have high oxygen demand, but poorly compete with aerobic heterotrophs.
Chung P. Le   +5 more
semanticscholar   +1 more source

Position-Specific Metabolic Probing and Metagenomics of Microbial Communities Reveal Conserved Central Carbon Metabolic Network Activities at High Temperatures

open access: yesFrontiers in Microbiology, 2019
Temperature is a primary driver of microbial community composition and taxonomic diversity; however, it is unclear to what extent temperature affects characteristics of central carbon metabolic pathways (CCMPs) at the community level.
Scott C. Thomas   +9 more
doaj   +1 more source

The response of the Mediterranean gorgonian Eunicella singularis to thermal stress is independent of its nutritional regime. [PDF]

open access: yesPLoS ONE, 2013
Over the last few decades, sessile benthic organisms from the Mediterranean Sea have suffered from the global warming of the world's oceans, and several mass mortality events were observed during warm summers.
Leïla Ezzat   +4 more
doaj   +1 more source

Estuarine Nitrifiers: New Players, Patterns and Processes [PDF]

open access: yes, 2010
Ever since the first descriptions of ammonia-oxidizing Bacteria by Winogradsky in the late 1800s, the metabolic capability of aerobic ammonia oxidation has been restricted to a phylogenetically narrow group of bacteria.
Bernhard, Anne E, Bollmann, Annette
core   +2 more sources

Heterotrophic Extracellular Enzymatic Activities in the Atlantic Ocean Follow Patterns Across Spatial and Depth Regimes

open access: yesFrontiers in Marine Science, 2017
Heterotrophic microbial communities use extracellular enzymes to initialize degradation of high molecular weight organic matter in the ocean. The potential of microbial communities to access organic matter, and the resultant rates of hydrolysis, affect ...
Adrienne Hoarfrost, Carol Arnosti
doaj   +1 more source

Acetate and bicarbonate assimilation and metabolite formation in Chlamydomonas reinhardtii: a 13C-NMR study. [PDF]

open access: yesPLoS ONE, 2014
Cellular metabolite analyses by (13)C-NMR showed that C. reinhardtii cells assimilate acetate at a faster rate in heterotrophy than in mixotrophy. While heterotrophic cells produced bicarbonate and CO2aq, mixotrophy cells produced bicarbonate alone as ...
Himanshu Singh   +3 more
doaj   +1 more source

Scenedesmus rubescens Heterotrophic Production Strategies for Added Value Biomass

open access: yesMarine Drugs, 2023
Microalgae attract interest worldwide due to their potential for several applications. Scenedesmus is one of the first in vitro cultured algae due to their rapid growth and handling easiness.
Gonçalo Espírito Santo   +11 more
doaj   +1 more source

Stable isotope labeling confirms mixotrophic nature of streamer biofilm communities at alkaline hot springs

open access: yesFrontiers in Microbiology, 2015
Streamer biofilm communities (SBC) are often observed within chemosynthetic zones of Yellowstone hot spring outflow channels, where temperatures exceed those conducive to photosynthesis. Nearest the hydrothermal source (75-88°C) SBC comprise thermophilic
Florence eSchubotz   +8 more
doaj   +1 more source

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