Results 11 to 20 of about 1,521 (177)

Microplastics in the menu of Mediterranean zooplankton: Insights from the feeding response of the calanoid copepod Centropages typicus

open access: yesMarine Ecology, EarlyView., 2023
Abstract Microplastic input into the ocean represents an increasing threat to marine biota and may endanger the functioning of marine ecosystems, especially in semi‐enclosed basins, such as the Mediterranean Sea. The size spectrum of microplastics overlaps with that of nano‐microplankton (2–200 μm), thus potentially misleading suspension‐feeding ...
Claudia Traboni   +3 more
wiley   +1 more source

Comparative Genomics on Cultivated and Uncultivated Freshwater and Marine “Candidatus Manganitrophaceae” Species Implies Their Worldwide Reach in Manganese Chemolithoautotrophy

open access: yesmBio, 2022
Chemolithoautotrophic manganese oxidation has long been theorized but only recently demonstrated in a bacterial coculture. The majority member of the coculture, “Candidatus Manganitrophus noduliformans,” is a distinct but not yet isolated lineage in the ...
Hang Yu   +3 more
doaj   +1 more source

Continuous Supply of Non-Combustible Gas Mixture for Safe Autotrophic Culture to Produce Polyhydroxyalkanoate by Hydrogen-Oxidizing Bacteria

open access: yesBioengineering, 2022
Polyhydroxyalkanoates (PHAs) are eco-friendly plastics that are thermoplastic and biodegradable in nature. The hydrogen-oxidizing bacterium Ralstonia eutropha can biosynthesize poly[(R)-3-hydroxybutyrate] [P(3HB)], the most common PHA, from carbon ...
Yuki Miyahara   +3 more
doaj   +1 more source

Meta‐analysis of primary producer amino acid δ15N values and their influence on trophic position estimation

open access: yesMethods in Ecology and Evolution, 2021
Compound‐specific stable isotope analysis of individual amino acids (CSIA‐AA) has emerged as a transformative approach to estimate consumer trophic positions (TPCSIA) that are internally indexed to primary producer nitrogen isotope baselines.
Matthew D. Ramirez   +3 more
doaj   +1 more source

Dynamics of autotroph–mixotroph interactions with the intraguild predation structure

open access: yesJournal of Biological Dynamics, 2022
A mathematical model with the intraguild predation structure is proposed to describe the interactions of autotrophs and mixotrophs containing light and nutrients in a well-mixed aquatic ecosystem. The dissipation, existence and stability of equilibria of
Ming Chen, Jimin Zhang, Satlykova Ejegul
doaj   +1 more source

Interaction of Organisms in Abandoned Tin Mining Pits: Perspective of Life in Acid Mine Drainage Environment

open access: yesJurnal Ilmu Lingkungan, 2023
Acid Mine Drainage (AMD) occured after mining activity exposes metal sulphides to oxidizing conditions that impact acidic condition with low pH value in the waters and heavy metals contamination. These conditions are also occurred in abandoned tin mining
Andri Kurniawan   +2 more
doaj   +1 more source

Isobutanol Production by Autotrophic Acetogenic Bacteria [PDF]

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Two different isobutanol synthesis pathways were cloned into and expressed in the two model acetogenic bacteria Acetobacterium woodii and Clostridium ljungdahlii. A. woodii is specialized on using CO2 + H2 gas mixtures for growth and depends on sodium ions for ATP generation by a respective ATPase and Rnf system. On the other hand, C. ljungdahlii grows
Weitz, Sandra   +5 more
openaire   +4 more sources

Predominant Non-additive Effects of Multiple Stressors on Autotroph C:N:P Ratios Propagate in Freshwater and Marine Food Webs

open access: yesFrontiers in Microbiology, 2018
A continuing challenge for scientists is to understand how multiple interactive stressor factors affect biological interactions, and subsequently, ecosystems–in ways not easily predicted by single factor studies.
Manuel Villar-Argaiz   +3 more
doaj   +1 more source

Investigation of the microbial diversity of an extremely acidic, metal-rich water body (Lake Robule, Bor, Serbia) [PDF]

open access: yesJournal of the Serbian Chemical Society, 2014
An investigation of the microbial diversity of the extremely acidic, metal-rich Lake Robule was carried out using culture-dependant and culture-independent (T-RFLP) methods, and the ability of indigenous bacteria from the lake water to leach ...
Stanković Srđan   +5 more
doaj   +1 more source

Iron Corrosion via Direct Metal-Microbe Electron Transfer

open access: yesmBio, 2019
The concept that anaerobic microorganisms can directly accept electrons from Fe(0) has been controversial because direct metal-microbe electron transfer has previously only been indirectly inferred.
Hai-Yan Tang   +4 more
doaj   +1 more source

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