Results 151 to 160 of about 44,810 (260)
Abstract Purple sulfur bacteria (PSB) of the family Chromatiaceae (Gammaproteobacteria) can perform chemo‐ and photo‐lithoautotrophy (through anoxygenic photosynthesis) in anoxic layers of freshwater stratified (including meromictic) lakes. This group has been extensively studied via physiological and ecological approaches, albeit their genomics has ...
Pedro J. Cabello‐Yeves+7 more
wiley +1 more source
Oxidative stress and nitric oxide metabolism responses during prolonged high-altitude exposure in preterm born adults. [PDF]
Chambion-Diaz M+6 more
europepmc +1 more source
Abstract Nutrient dynamics in headwater streams are governed by benthic and hyporheic biofilms, with carbon (C) : nitrogen (N) : phosphorus (P) ratios driving the heterotrophic microbial biofilm development through nutrient limitation. Furthermore, heterotrophic responses to changes in C : N : P ratios are probably modulated by autotrophic responses to
Anika Große+8 more
wiley +1 more source
Investigation of nitrate and nitrite in commercially available infant formulas and baby foods in Iran and estimation of human health risks. [PDF]
Taghavi M+4 more
europepmc +1 more source
Impact of copper and iron on growth and silicic acid uptake in two Southern Ocean diatoms
Abstract Copper (Cu) and iron (Fe) are vital micronutrients that influence diatom physiology, growth rate, and nutrient stoichiometry. This study examines the interactive effects of Cu and Fe on two Southern Ocean diatoms, Proboscia inermis and Chaetoceros flexuosus, cultured under varying Fe and Cu conditions.
Prayna P. P. Maharaj, Michael J. Ellwood
wiley +1 more source
Effects of individual and combined doses of added nitrite and nitrate on the quality of dry-fermented sausage. [PDF]
Kang SN, Yim D.
europepmc +1 more source
Abstract Islands in the tropical Pacific supply elevated nutrients to nearshore waters that enhance phytoplankton biomass and create hotspots of productivity in otherwise nutrient‐poor oceans. Despite the importance of these hotspots in supporting nearshore food webs, the spatial and temporal variability of phytoplankton enhancement and changes in the ...
Sarah J. Tucker+6 more
wiley +1 more source
Evaluating refrigeration and antibiotic treatment for maintaining urine electrophysiology. [PDF]
Hoque R+3 more
europepmc +1 more source
Pteropods as early‐warning indicators of ocean acidification
Abstract Aragonite undersaturation (Ωar$$ {\Omega}_{\mathrm{ar}} $$ <$$ < $$ 1) events are projected to rapidly increase in frequency and duration in the Antarctic Weddell Sea by 2050. Thecosome pteropods (pelagic snails) are bioindicators of ocean acidification (OA) because their aragonite shell dissolves easily at low Ωar$$ {\Omega}_{\mathrm{ar ...
Silke Lischka+5 more
wiley +1 more source