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Concept

Chrysophyceae

Publications associées (12)

Methods and devices for cultivating coenocytic algae

Christian Ludwig, Eya Nicodeme, Enio Daniel Zanchetta

The present invention concerns methods and devices for cultivating coenocytic algae and for producing cellulose, in particular microfibrillated cellulose (MFC). In one embodiment, the algae are grown on a solid substrate immersed in liquid culture medium. ...

2023

Photobiology and metabolic interactions in the symbiotic jellyfish Cassiopea

Niclas Heidelberg Lyndby

The symbiont-bearing jellyfish Cassiopea live a benthic lifestyle, positioning themselves upside-down on sediments in shallow waters to allow their endosymbiotic algae to photosynthesize in the sunlight. Over the last decades Cassiopea has become increasin ...

EPFL2023

A roadmap to understanding diversity and function of coral reef-associated fungi

Claudia Isabella Pogoreutz

Tropical coral reefs are hotspots of marine productivity, owing to the association of reef-building corals with endosymbiotic algae and metabolically diverse bacterial communities. However, the functional importance of fungi, well-known for their contribut ...

OXFORD UNIV PRESS2022

Nutrient pollution enhances productivity and framework dissolution in algae- but not in coral-dominated reef communities

Nils Rädecker

Ecosystem services provided by coral reefs may be susceptible to the combined effects of benthic species shifts and anthropogenic nutrient pollution, but related field studies are scarce. We thus investigated in situ how dissolved inorganic nutrient enrich ...

2021

Interaction of Fluorescent Single-Walled Carbon Nanotubes with Photosynthetic Microbes

Alessandra Antonucci

The discovery of carbon-based nanomaterials has impacted a variety of research areas in ways that could not be imagined three decades ago. Their unique combination of structural, optical, and electronic properties has made these nano-sized materials partic ...

EPFL2020

Chemical Aspects of Nanoparticle Ecotoxicology

Kristin Schirmer, Hannah Inka Schug, Yang Yue

Nanoecotoxicology strives to understand the processes and mechanisms by which engineered nanoparticles (ENP) may exert toxic effects on aquatic organisms. Detailed knowledge of the chemical reactions of nanoparticles in the media and of their interactions ...

Swiss Chemical Soc2014

Continuous catalytic hydrothermal gasification of algal biomass and case study on toxicity of aluminum as a step toward effluents recycling

Christian Ludwig, Frédéric Vogel, Mariluz Bagnoud, Martin Brandenberger

A novel process named SunCHem has been proposed to produce methane via catalytic hydrothermal gasification of microalgae [1-3]. The process is innovative because it is designed as a closed-cycle system with respect to water, nutrients and some of the CO2, ...

Elsevier2014

Integrated toxicity evaluation of a pulp deposit using organisms of different trophic levels

In order to assess possible adverse effects originating from pulp deposits in a Swiss lake, a sediment quality triad approach was applied with chemical, ecotoxicological and ecological assessment methods. To obtain an integrative picture of the potential e ...

Springer Heidelberg2013

Multiple-endpoint assay provides a detailed mechanistic view of responses to herbicide exposure in Chlamydomonas reinhardtii

Kristin Schirmer

The release of herbicides into the aquatic environment raises concerns about potential detrimental effects on ecologically important non-target species, such as unicellular algae, necessitating ecotoxicological risk assessment. Algal toxicity tests based o ...

2012

Catalytic gasification of algae in supercritical water for biofuel production and carbon capture

Christian Ludwig, Frédéric Vogel, Martin Brandenberger

There has been growing concern about the way cultivating biomass for the production of agro-biofuels competes with food production. To avoid this competition biomass production for biofuels will, in the long term, have to be completely decoupled from food ...

2009

No Evidence for the Induction of Brown Algal Chemical Defense by the Phytohormones Jasmonic Acid and Methyl Jasmonate

Induced chemical defense reactions are widespread in marine brown algae. Despite the evidence that the biosynthesis of defense metabolites can be up-regulated upon herbivory, we do not know how this regulation of biosynthetic pathways to secondary metaboli ...

Springer-Verlag2008

Diatom/copepod interactions in plankton: The indirect chemical defense of unicellular algae

Max-Planck-Institut fur Chemische Okologie, Hans-Knoll-Strasse 8, 07745 Jena, Germany. pohnert@ice.mpg.de Numerous coexisting species can be observed in the open oceans. This includes the complex community of the plankton, which comprises all free floating ...

2005