Results 131 to 140 of about 12,002 (245)

Characterizing Chemoautotrophy and Heterotrophy in Marine Archaea and Bacteria With Single-Cell Multi-isotope NanoSIP

open access: yesFrontiers in Microbiology, 2019
Characterizing and quantifying in situ metabolisms remains both a central goal and challenge for environmental microbiology. Here, we used a single-cell, multi-isotope approach to investigate the anabolic activity of marine microorganisms, with an ...
A. Dekas   +6 more
semanticscholar   +1 more source

Ocean acidification reduces demersal zooplankton that reside in tropical coral reefs [PDF]

open access: yes, 2016
The in situ effects of ocean acidification on zooplankton communities remain largely unexplored. Using natural volcanic CO2 seep sites around tropical coral communities, we show a threefold reduction in the biomass of demersal zooplankton in high-CO2 ...
A Bucklin   +48 more
core   +2 more sources

Ediacara biota flourished in oligotrophic and bacterially dominated marine environments across Baltica. [PDF]

open access: yes, 2018
Middle-to-late Ediacaran (575-541 Ma) marine sedimentary rocks record the first appearance of macroscopic, multicellular body fossils, yet little is known about the environments and food sources that sustained this enigmatic fauna.
Bekker, Andrey   +7 more
core   +3 more sources

Spontaneous evolution of heterotrophy in cultured dinoflagellate algae

open access: yesCurrent Biology
Acquisition of chloroplasts by an early eukaryote and their subsequent spread across eukaryotes is well understood. However, evolution can be undone, and many important lineages (especially in the Apicomplexa) have lost photosynthesis, returning to heterotrophy.
Barbrook, Adrian C   +5 more
openaire   +2 more sources

The effects of intense fire on headwater streams of the Colville National Forest, WA [PDF]

open access: yes, 2006
Thesis (M.S.) University of Alaska Fairbanks, 2006Forest fires play an important role in shaping ecosystems, and there has been growing concern on the effects of high intensity fires on forest and aquatic ecosystems.
Mellon, Cassie Danielle
core  

Net heterotrophy and carbonate dissolution in two subtropical seagrass meadows

open access: yesBiogeosciences, 2019
. The net ecosystem productivity (NEP) of two seagrass meadows within one of the largest seagrass ecosystems in the world, Florida Bay, was assessed using direct measurements over consecutive diel cycles during a short study in the fall of 2018.
B. V. Van Dam   +3 more
semanticscholar   +1 more source

Evolution of heterotrophy in chrysophytes as reflected by comparative transcriptomics

open access: yesFEMS Microbiology Ecology, 2018
Shifts in the nutritional mode between phototrophy, mixotrophy and heterotrophy are a widespread phenomenon in the evolution of eukaryotic diversity.
N. Graupner   +6 more
semanticscholar   +1 more source

Thirteen New Plastid Genomes from Mixotrophic and Autotrophic Species Provide Insights into Heterotrophy Evolution in Neottieae Orchids

open access: yesGenome Biology and Evolution, 2019
Mixotrophic species use both organic and mineral carbon sources. Some mixotrophic plants combine photosynthesis and a nutrition called mycoheterotrophy, where carbon is obtained from fungi forming mycorrhizal symbiosis with their roots. These species can
F. Lallemand   +9 more
semanticscholar   +1 more source

Nitrogen Fixation Aligns with nifH Abundance and Expression in Two Coral Trophic Functional Groups

open access: yesFrontiers in Microbiology, 2017
Microbial nitrogen fixation (diazotrophy) is a functional trait widely associated with tropical reef-building (scleractinian) corals. While the integral role of nitrogen fixation in coral nutrient dynamics is recognized, its ecological significance ...
Claudia Pogoreutz   +9 more
doaj   +1 more source

On the measurement of heterotrophic activity in the aquatic environment using labelled substrates [PDF]

open access: yes, 1984
Vesistöjen bakteeriplanktonin aktiivisuuden mittauksesta radioaktiivisten merkkiaineiden ...
Kuparinen, Jorma, Tamminen, Timo
core  

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