Results 71 to 80 of about 9,517 (191)

Different Ribotypes of Akashiwo sanguinea Harbor Distinct Bacterial Communities in Their Phycospheres

Diversity
The unarmored dinoflagellate Akashiwo sanguinea is a cosmopolitan harmful algal species known for forming intense blooms leading to mass mortality of fish, shellfish, and seabirds. Globally distributed populations of A.
Hanying Zou, Fengting Li, Jiaqi Lu, Zhangxi Hu, Lixia Shang, Ying Zhong Tang, Yunyan Deng   +6 more
doaj   +1 more source

Evidence for Limited Atmospheric CO2 Rise at the Miocene Climatic Optimum

Paleoceanography and Paleoclimatology, Volume 41, Issue 6, June 2026.
Abstract The Miocene Climatic Optimum (MCO; 16.9–14.7 Ma) was a relatively warm period with atmospheric CO2 averaging ∼500 μatm but CO2 change across its onset is poorly documented. We present a record of algal 13C‐fractionation covering the Early to Middle Miocene (∼18.5–15 Ma), with a gap at the MCO onset, from Ocean Drilling Program Site 959 in the ...
Evi Wubben, Joost Frieling, Yannick F. Bats, Linda van Roij, Kirsten de Haan, Gert‐Jan Reichart, Francien Peterse, Francesca Sangiorgi, Marcel T. J. van der Meer, Appy Sluijs   +9 more
wiley   +1 more source

Insights into Nitrogen-Associated Protein 50 (NAP50) as a Tyrosyl–DNA Phosphodiesterase in Dinoflagellates

Microorganisms
Nitrogen-associated protein 50 (NAP50) is an abundant plastid protein with an unknown function identified in Alexandrium affine (Dinophyceae). No progress has been made in discovering the function of NAP50 since its first characterization in 2009.
Lu Tang, Nora Fung-Yee Tam, Winnie Lam, Thomas Chun-Hung Lee, Steven Jing-Liang Xu, Fred Wang-Fat Lee   +5 more
doaj   +1 more source

Late Jurassic Carbon Isotope Excursion (Middle Oxfordian Event) Paces With Astronomical Forcing in the Northwestern Tethys

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract Marine carbonate carbon isotopes (δ13C), over orbital to multi‐million‐year timescales, provide critical insight into the carbon cycle connecting Earth's atmosphere, lithosphere, hydrosphere and biosphere. However, the influence of astronomical forcing on deep time carbon cycle dynamics remains poorly constrained.
Deyan Zhang, Su Li, Xu Yao, Chuanlong Mou, Ulrich Heimhofer   +4 more
wiley   +1 more source

Sponges are celebrated heterotrophs but also key primary producers on changing coral reefs

Functional Ecology, Volume 40, Issue 6, Page 1561-1577, June 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Trophic interactions and nutrient cycling lay at the heart of ecosystem health and biodiversity. In recent years, our understanding of these drivers has been repeatedly challenged by rapid and unanticipated climatic effects, combined with an increasing awareness that ...
Michelle Achlatis, Rene M. van der Zande, Sam Arnold, Alphonsus C. Röttgering, Jeroen Schneider, Mathieu Pernice, Jasper M. de Goeij   +6 more
wiley   +1 more source

Invasion and establishment of Ceratium furcoides (Dinophyceae) in an urban lake in Porto Alegre, RS, Brazil

Acta Botânica Brasílica
Ceratium furcoides has received attention due its invasive behavior in South America and consequent alterations in local phytoplankton communities.
Luiza Nicoleite da Silva, Caroline Modena de Medeiros, Kaoli Pereira Cavalcante, Luciana de Souza Cardoso   +3 more
doaj   +1 more source

Genomic Survey of Carbon Monoxide Dehydrogenases Reveals Their Widespread Distribution in Marine Habitats

Environmental Microbiology Reports, Volume 18, Issue 3, June 2026.
Protein sequence surveys show that nickel‐ and molybdenum/copper‐containing carbon monoxide dehydrogenases (CODHs) are widespread in the ocean. Phylogenetic and genome context analyses reveal that marine CODHs are highly diverse in both evolutionary history and functional organisation.
Nipa Chongdar, Anand Goyal, Samir R. Damare   +2 more
wiley   +1 more source

Nucleomorph phylogenomics suggests a deep and ancient origin of cryptophyte plastids within Rhodophyta

New Phytologist, Volume 250, Issue 5, Page 3103-3113, June 2026.
Summary The evolutionary origin of red algae‐derived complex plastids remains obscure. Cryptophyta, one of four eukaryotic lineages harboring these plastids, still contains nucleomorphs, which are highly reduced remnants of red algal nuclei. The genes present on nucleomorph genomes can be used for phylogenomic reconstruction in order to unravel the ...
Lukáš V. F. Novák, Sergio A. Muñoz‐Gómez, Maria Ciobanu, Fabian van Beveren, Laura Eme, Purificación López‐García, David Moreira   +6 more
wiley   +1 more source

Microbial Controls on Dissolved Organic Nitrogen Cycling During Long‐Term Degradation Experiments

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Dissolved organic nitrogen (DON) is critical for marine microbial growth by providing carbon and nitrogen. Although DON is rapidly cycled, some compounds within this pool can persist for long‐periods of time. To better understand how DON is cycled by marine microorganisms, we conducted 548‐day incubations using surface‐derived dissolved ...
Richard LaBrie, Roxane Maranger, Luc Tremblay, Jennifer Cherrier, Jean‐Eric Tremblay, Nagissa Mahmoudi   +5 more
wiley   +1 more source

Specific growth rate and mitotic index in dinoflagellate Symbiodinium sp. isolateed from sea anemone Stichodactyla haddoni [PDF]

بوم‌شناسی آبزیان, 2017
The cultivation techniques of dinoflagellates is often problematic due to their sensitivity to hydrodynamic (shear) stress. For this study, sea anemone was collected from the east coast of Hormuz Island.
Hamideh Tahmasebi, Behrouz Zarei Darki
doaj