Results 41 to 50 of about 553 (154)
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
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
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
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
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
Differences in the percent cover of lipids and plastids based on area in TEMs of animals exhibiting transient and permanent kleptoplasty. [PDF]
, 2014 (A) Percent cover (mean ± SD) of lipids and plastids from micrographs (n = 3) of animals fed 5 d (transient kleptoplasty) and then starved for 1 or 7 d (grey bars) compared to same age control animals fed continuously (green bars).
Katrin L. Weber (564130) +3 more
core +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
The Importance of the Phytoplankton “Middle Class” to Ocean Net Community Production
Global Biogeochemical Cycles, Volume 34, Issue 12, December 2020., 2020 Abstract The net balance between photosynthesis and respiration in the surface ocean is a key regulator of ocean‐atmosphere carbon dioxide (CO2) partitioning, and by extension, Earth's climate. The slight excess of photosynthesis over community respiration in sunlit waters, known as net community production (NCP), sets the upper bound on the ...
Lauren W. Juranek +8 more
wiley +1 more source