Characterizing photosymbiosis in modern planktonic foraminifera

H Takagi, K Kimoto, T Fujiki, H Saito, C Schmidt… - …, 2019 - bg.copernicus.org
Photosymbiosis has played a key role in the diversification of foraminifera and their
carbonate production throughout geologic history. However, identification of photosymbiosis …

Genetic and morphological divergence in the warm-water planktonic foraminifera genus Globigerinoides

R Morard, A Füllberg, GJA Brummer, M Greco… - PloS one, 2019 - journals.plos.org
The planktonic foraminifera genus Globigerinoides provides a prime example of a species-
rich genus in which genetic and morphological divergence are uncorrelated. To shed light …

The nitrogen isotopic composition of tissue and shell‐bound organic matter of planktic foraminifera in Southern Ocean surface waters

SM Smart, SE Fawcett, H Ren… - Geochemistry …, 2020 - Wiley Online Library
We present the first nitrogen isotope (δ15N) measurements of planktic foraminifera,
paleoceanographically important zooplankton, from the nutrient‐rich waters of the modern …

Inorganic carbon and nitrogen assimilation in cellular compartments of a benthic kleptoplastic foraminifer

C LeKieffre, T Jauffrais, E Geslin, B Jesus… - Scientific Reports, 2018 - nature.com
Haynesina germanica, an ubiquitous benthic foraminifer in intertidal mudflats, has the
remarkable ability to isolate, sequester, and use chloroplasts from microalgae. The …

Copepods and mixotrophic Rhizaria dominate zooplankton abundances in the oligotrophic Indian Ocean

CH Davies, LE Beckley, AJ Richardson - Deep Sea Research Part II …, 2022 - Elsevier
The large, tropical oligotrophic gyres of the world's oceans are understood to be relatively
unproductive, with low phytoplankton and zooplankton biomass, and inefficient food webs …

Multifaceted Dinoflagellates and the Marine Model Prorocentrum cordatum

J Kalvelage, R Rabus - Microbial Physiology, 2024 - karger.com
Background: Dinoflagellates are a monophyletic group within the taxon Alveolata, which
comprises unicellular eukaryotes. Dinoflagellates have long been studied for their …

Ammonium is the preferred source of nitrogen for planktonic foraminifer and their dinoflagellate symbionts

C LeKieffre, HJ Spero… - … of the Royal …, 2020 - royalsocietypublishing.org
The symbiotic planktonic foraminifera Orbulina universa inhabits open ocean oligotrophic
ecosystems where dissolved nutrients are scarce and often limit biological productivity. It …

Functional kleptoplasts intermediate incorporation of carbon and nitrogen in cells of the Sacoglossa sea slug Elysia viridis

S Cruz, C LeKieffre, P Cartaxana, C Hubas, N Thiney… - Scientific reports, 2020 - nature.com
Some sacoglossan sea slugs incorporate intracellular functional algal chloroplasts, a
process termed kleptoplasty.“Stolen” chloroplasts (kleptoplasts) can remain …

Past foraminiferal acclimatization capacity is limited during future warming

R Ying, FM Monteiro, JD Wilson, M Ödalen… - Nature, 2024 - nature.com
Climate change affects marine organisms, causing migrations, biomass reduction and
extinctions,. However, the abilities of marine species to adapt to these changes remain …

Two waves of photosymbiosis acquisition in extant planktonic foraminifera explained by ecological incumbency

H Takagi, Y Nakamura, C Schmidt, M Kucera… - The ISME …, 2024 - academic.oup.com
Photosymbiosis, a mode of mixotrophy by algal endosymbiosis, provides key advantage to
pelagic life in oligotrophic oceans. Despite its ecological importance, mechanisms …