Results 31 to 40 of about 440 (139)
Eco-Evolutionary Perspectives on Mixoplankton
Frontiers in Marine Science, 2021 Mixotrophy, i.e., the capability of both phototrophy and phagotrophy within a single organism, is a prominent trophic mode in aquatic ecosystems. Mixotrophic strategies can be highly advantageous when feeding or photosynthesis alone does not sustain ...
Joost Samir Mansour +2 more
doaj +1 more source
Environmental Microbiology, Volume 25, Issue 11, Page 2321-2337, November 2023., 2023 This study reports for the first‐time the application of a digital PCR (dPCR) assay to target an alien species of a free‐living unicellular non‐pathogenic Eukaryote belonging to Foraminifera (Rhizaria). The number of DNA copies from our species‐specific dPCR assay highly correlates with morphospecies counts thus picking up the DNA signal from organisms
Filip Morin +7 more
wiley +1 more source
Retention of Prey Genetic Material by the Kleptoplastidic Ciliate Strombidium cf. basimorphum
Frontiers in Microbiology, 2021 Many marine ciliate species retain functional chloroplasts from their photosynthetic prey. In some species, the functionality of the acquired plastids is connected to the simultaneous retention of prey nuclei.
Maira Maselli +5 more
doaj +1 more source
Benthic Foraminiferal Mn/Ca as Low‐Oxygen Proxy in Fjord Sediments
Global Biogeochemical Cycles, Volume 37, Issue 5, May 2023., 2023 Abstract Fjord systems are typically affected by low‐oxygen conditions, which are increasing in extent and severity, forced by ongoing global changes. Fjord sedimentary records can provide high temporal resolution archives to aid our understanding of the underlying mechanisms and impacts of current deoxygenation.
Inda Brinkmann +8 more
wiley +1 more source
phytoclass: A pigment‐based chemotaxonomic method to determine the biomass of phytoplankton classes
Limnology and Oceanography: Methods, Volume 21, Issue 4, Page 220-241, April 2023., 2023 Abstract Pigment‐based chemotaxonomy is a widely utilized tool to determine the biomass of phytoplankton classes from pigment biomarkers. The CHEMTAX approach is sensitive to the initial estimates of pigment‐to‐chlorophyll a (Chl a) ratios for the phytoplankton classes required, even though these are modified by the CHEMTAX process.
Alexander Hayward +2 more
wiley +1 more source
Endosymbiosis and kleptoplasty in the evolution of complex algae [PDF]
, 2023 Complex algae form a network of photosynthetic organisms scattered across the eukaryotic tree. However, the exact mechanisms by which their plastids were acquired remain unclear.
Baurain, Denis, Van Vlierberghe, Mick
core +1 more source
Frontiers in Marine Science, 2020 Kleptoplasty or acquisition of chloroplasts from ingested photosynthetic organisms, is thought to be a key factor in determining the trophic requirements and carbon mineralization of foraminifera, consequently influencing their ecology, evolution, and ...
Masashi Tsuchiya +13 more
doaj +1 more source
Functional chloroplasts in metazoan cells - a unique evolutionary strategy in animal life
Frontiers in Zoology, 2009 Background Among metazoans, retention of functional diet-derived chloroplasts (kleptoplasty) is known only from the sea slug taxon Sacoglossa (Gastropoda: Opisthobranchia). Intracellular maintenance of plastids in the slug's digestive epithelium has long
Krug Patrick J +3 more
doaj +1 more source
Benthic foraminifera and gromiids from oxygen-depleted environments – survival strategies, biogeochemistry and trophic interactions [PDF]
Biogeosciences, 2023 The oceans are losing oxygen (O2), and oxygen minimum zones are expanding due to climate warming (lower O2 solubility) and eutrophication related to agriculture.
N. Glock
doaj +1 more source
Frontiers in Microbiology, 2012 Simultaneous use of both heterotrophic and autotrophic metabolism (mixotrophy) is common among protists. Strombidium rassoulzadegani is a planktonic mixotrophic marine ciliate that saves chloroplasts from its algal food and obtains a nutritional subsidy
George B Mcmanus +2 more
doaj +1 more source