Results 51 to 60 of about 2,816 (129)
Global Biogeochemical Cycles, Volume 40, Issue 6, June 2026.Abstract Variations in the elemental C:N:P ratios of organic matter (OM) influence the coupling of carbon and nutrient cycles in the ocean. In this study, we assess the relevance of OM C:N:P stoichiometry for regional carbon cycling in the northwest European shelf seas (NWES).
K. T. Demir +7 more
wiley +1 more source
Water Resources Research, Volume 62, Issue 6, June 2026.Abstract Precipitation and hydrological processes fundamentally reshape aquatic physicochemical properties and biological interactions, thereby regulating lake metabolism and carbon (C) dynamics. This study integrated 5 years of field data with machine learning to estimate 30 years of ecosystem metabolic rates (gross primary production [GPP], ecosystem
Junjie Jia +4 more
wiley +1 more source
Evolutionary Routes to Modern Metabolic Pathways
MacromolMetabolism, the network of biochemical reactions that powers life, arose under conditions radically different from those on Earth today. Investigating its origins reveals how initially simple chemical processes gradually integrated nucleic acid and then ...
Alberto Vázquez-Salazar +1 more
doaj +1 more source
Sponges are celebrated heterotrophs but also key primary producers on changing coral reefs
Functional Ecology, Volume 40, Issue 6, Page 1561-1577, June 2026.Read the free Plain Language Summary for this article on the Journal blog. Abstract Trophic interactions and nutrient cycling lay at the heart of ecosystem health and biodiversity. In recent years, our understanding of these drivers has been repeatedly challenged by rapid and unanticipated climatic effects, combined with an increasing awareness that ...
Michelle Achlatis +6 more
wiley +1 more source
In-service teachers’ expressions of TSPCK
LUMATThis study addresses the question of how teachers reason about teaching autotrophy and heterotrophy, and contributes to TSPCK research in biology. Topic-specific pedagogical content knowledge (TSPCK) is a knowledge base in the framework of PCK and is ...
Jessica Sundman +2 more
doaj +1 more source
Carbon fixation from mineral carbonates
Nature Communications, 2017 Evidence showing that carbonates can directly supply CO2 for autotrophy is lacking. Here, using stable isotope analyses and NanoSIMS imaging, the authors show that a model euendolith, Mastigocoleus testarum strain BC008, derives the majority of its ...
Brandon S. Guida +2 more
doaj +1 more source
Metagenomic insights into S(0) precipitation in a terrestrial subsurface lithoautotrophic ecosystem
Frontiers in Microbiology, 2015 The Frasassi and Acquasanta Terme cave systems in Italy host isolated lithoautotrophic ecosystems characterized by sulfur-oxidizing biofilms with up to 50% S(0) by mass.
Trinity eHamilton +6 more
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Desalination and Water TreatmentMicroalgae-based wastewater treatment is an alternative to physico-chemical and bacteria-based technologies. Microalgae-based wastewater treatment showed enormous potential, not only exhibiting excellent pollutant removal efficiencies but also unlimited ...
Setyo Budi Kurniawan +7 more
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Net community production of oxygen derived from in vitro and in situ 1-D modeling techniques in a cyclonic mesoscale eddy in the Sargasso Sea [PDF]
Biogeosciences, 2009 It has been proposed that the disagreement traditionally reported between in vitro incubation and in situ estimates of oxygen net community production (NCP) could be explained, at least partially, by undersampling episodic pulses of net autotrophy ...
B. Mouriño-Carballido, L. A. Anderson
doaj
Frontiers in Plant ScienceBackgroundThe green alga Chlamydomonas reinhardtii can grow photoautotrophically utilizing light and CO2, and heterotrophically utilizing acetate. The physiological and biochemical responses of autotrophy and heterotrophy are different in C. reinhardtii.
Jing Chen +20 more
doaj +1 more source