Results 61 to 70 of about 5,070 (200)

Effect of Glycerol Concentration and Light Intensity on Growth and Biochemical Composition of Arthrospira (Spirulina) Platensis: A Study in Semi-Continuous Mode with Non-Aseptic Conditions

open access: yesApplied Sciences, 2019
In this study, Arthrospira platensis was grown in the presence of different glycerol concentrations (0.5−9 g/L) under three light intensities (5, 10 and 15 Klux) in semi-continuous mode and under non-axenic conditions.
Giorgos Markou   +5 more
doaj   +1 more source

Impact of two hot and dry summers on the community structure and functional diversity of testate amoebae in an artificial bog, illustrating their use as bioindicators of peatland health [PDF]

open access: yes, 2018
Ongoing climate warming threatens the survival of bogs at the warm/dry limit of their distribution (e.g. in central Europe), and jeopardises the restoration of damaged bogs even more.
Christinat, K   +3 more
core   +3 more sources

Revealing Seasonal Patterns and Metabolism of Microbial Plankton in a Productive Coastal Upwelling System

open access: yesJournal of Geophysical Research: Oceans, Volume 131, Issue 2, February 2026.
Abstract Increasing our knowledge about the structure and metabolism of the microbial plankton community in coastal upwelling systems is essential for efficiently managing the resources of these highly productive ecosystems. Here we explore seasonal variations of this community in the NW Iberian coastal upwelling system by measuring variables informing
María López‐Haslett   +6 more
wiley   +1 more source

Reduction in CO2 uptake rates of red tide dinoflagellates due to mixotrophy [PDF]

open access: yes
We investigated a possible reduction in CO2 uptake rate by phototrophic red tide dinoflagellates arising from mixotrophy. We measured the daily ingestion rates of Prorocentrum minimum by Prorocentrum micans over 5 days in 10 L experimentalbottles, and ...
Jeong, HJ   +7 more
core   +1 more source

An Explicit Test of Kill the Winner: Protistan Grazing and Phage Lysis Differentially Impact Fast‐Growing Bacterial Taxa in the Coastal Antarctic

open access: yesEnvironmental Microbiology, Volume 28, Issue 2, February 2026.
We evaluated whether predators ‘kill the winner’ wherein protists and phages preferentially impact the most abundant members of bacterial assemblages over an austral summer with weekly dilution experiments. Seawater from 10 m was divided into two serial dilutions with either 0.2 μm (to evaluate protist grazing) or 30 kDa (to evaluate protist grazing ...
Elizabeth Connors   +4 more
wiley   +1 more source

The genetic diversity of Mesodinium and associated cryptophytes

open access: yesFrontiers in Microbiology, 2016
Ciliates from the genus Mesodinium are globally distributed in marine and freshwater ecosystems and may possess either heterotrophic or mixotrophic nutritional modes. Members of the M.
Matthew David Johnson   +10 more
doaj   +1 more source

Protistan Plankton Responses to Variable Light and Upwelling in the Peruvian Humboldt Current System: Insights Into Community Dynamics Under Environmental Change

open access: yesEcology and Evolution, Volume 16, Issue 1, January 2026.
Our study reveals (based on experiments) the shifts in protistan plankton communities, serving as energy and organic matter source for higher trophic levels if the Humboldt Current System is affected by climate change as predicted by current models. This may have profound effects on fisheries in the Humboldt Current System.
Sven Katzenmeier   +2 more
wiley   +1 more source

Enhancing Biomass Production of Chlorella vulgaris in Anaerobically Digested Swine Wastewater Using Carbon Supplementation and Simultaneous Lipid Production

open access: yesApplied Sciences
This study investigated anaerobically digested swine wastewater (ADSW) as a nutrient source for Chlorella vulgaris FACHB-8 cultivation under mixotrophic conditions with carbon supplementation. The microalgal strain was grown in ADSW supplemented with six
Chenkai Zhou   +8 more
doaj   +1 more source

Phytoplankton Morpho-Functional Trait Variability along Coastal Environmental Gradients

open access: yesMicroorganisms, 2021
We utilized the trait-based approach in a novel way to examine how specific phytoplankton traits are related to physical features connected to global change, water quality features connected to catchment change, and nutrient availability connected to ...
Sirpa Lehtinen   +4 more
doaj   +1 more source

Detection and Enhancement of Ketocarotenoid Accumulation in the Newly Isolated Sarcinoid Green Microalga Chlorosarcinopsis PY02 [PDF]

open access: yes, 2018
The sarcinoid alga PY02 is a newly isolated soil alga native to western Thailand. In this study PY02 is described, the carotenoid profile of the green and red forms of the algal cells are compared, and the effect of nitrogen reduction and media volume on
Brocklehurst, TW   +3 more
core   +2 more sources

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