Results 1 to 10 of about 4,009 (131)

Effect of micronutrient iron on bioactive compounds isolated from cryptophytes

Frontiers in Plant Science, 2023
Iron is one of the important micronutrients affecting algal growth due to its fundamental role in the physiological processes, including photosynthetic electron transport, respiration, and nitrogen fixation.
Elina Peltomaa
exaly   +3 more sources

Structural analysis of PSI-ACPI and PSII-ACPII supercomplexes from a cryptophyte alga Rhodomonas sp. NIES-2332 [PDF]

Frontiers in Plant Science
Light energy is converted to chemical energy by two photosystems (PSI and PSII) in complex with their light-harvesting complex proteins (LHCI and LHCII) in photosynthesis. Rhodomonas is a member of cryptophyte alga whose LHCs contain unique chlorophyll a/
Wenyue Zhang, Nozomi Yonehara, Mizuki Ishii, Haowei Jiang, Romain La Rocca, Pi-Cheng Tsai, Hongjie Li, Hongjie Li, Koji Kato, Fusamichi Akita, Jian-Ren Shen   +10 more
doaj   +2 more sources

Dinoflagellate responses to nutrients and mangrove leaf organic matter in the bioluminescent Mangrove Lagoon, St. Croix, U.S. Virgin Islands. [PDF]

J Phycol
Abstract Bioluminescent bays (biobays) are uncommon coastal ecosystems featuring dense populations of dinoflagellates, often found in mangrove‐ringed lagoons with long water retention times and high organic matter (OM) levels. Although mangroves are associated with high dinoflagellate abundance, it remains uncertain how inorganic nutrients compare with
Pinckney JL, Zimberlin M, Greenfield DI.
europepmc   +2 more sources

Ultrafast exciton energy transfer dynamics in the cryptophyte light-harvesting antenna phycoerythrin 566 [PDF]

Frontiers in Plant Science
IntroductionCryptophytes obtain energy through photosynthetic pigments and transfer it to the photosynthetic center on an ultrafast timescale. The mechanisms of such ultrafast excitation energy transfer (EET) in light-trapping complexes are a major focus
Na Guo, Zidong Liang, Xinyu Guo, Zhencheng Huang, Lei Zhang, Mingyuan Xie, Yang Pu, Yang Pu, Wenjun Li, Min Chen, Song Qin, Fuli Zhao   +11 more
doaj   +2 more sources

Cryptophytes as potential source of natural antimicrobials for food preservation [PDF]

Frontiers in Microbiology
Cryptophytes are a promising source of bioactive compounds that have not been fully explored. This research investigated the antimicrobial activity of total phenolic compounds (TPC) and exopolysaccharides (EPS) extracted from several cryptophytes against
Maryam Abidizadegan, Elina Peltomaa, Polina Ilina, Päivi Tammela, Jaanika Blomster   +4 more
doaj   +2 more sources

Stable Bacterial Cores and Patchy Eukaryotic Communities Shape the Summer Microbiomes of Patagonian Fjord Ecosystems Across Spatial, Functional and Temporal Gradients [PDF]

Environ Microbiol Rep
Our study shows that microbial community diversity in Patagonian fjords varies with glacial influence and salinity, with a widespread bacterial core but a patchier eukaryotic core. Distinct co‐occurrence networks and marked short‐term community shifts occur in water‑ versus land‐terminating glacier fjords, underscoring meltwater influence in this ...
Trefault N, Rodríguez‐Marconi S, Manrique‐de‐la‐Cuba M, Flores‐Herrera P, Rodríguez‐Flórez C, Krock B.   +5 more
europepmc   +2 more sources

Lineage-specific expansions of polinton-like viruses in photosynthetic cryptophytes [PDF]

Microbiome
Background Polinton-like viruses (PLVs) are diverse eukaryotic DNA viral elements (14–40 kb) that often undergo significant expansion within protist genomes through repeated insertion events. Emerging evidence indicates they function as antiviral defense
Paul-Adrian Bulzu, Helena Henriques Vieira, Rohit Ghai   +2 more
doaj   +2 more sources

Variability in the Relationship Between Ocean Phytoplankton Diversity and Carbon Biomass Across Methods and Scales. [PDF]

Environ Microbiol
The relationship between global surface ocean phytoplankton diversity and carbon biomass was broadly similar and unimodal for a paired dataset of three different metrics for phytoplankton diversity: pigment concentrations modelled from hyperspectral ocean colour data, pigment concentrations measured by high performance liquid chromatography, and 18S ...
Kramer SJ.
europepmc   +2 more sources

Vertical distribution of aldehydes and phytoplankton structure: a case study of urban lake [PDF]

Archives of Environmental Protection, 2020
In water systems, both biologically and chemically synthesized molecules may reduce environmental quality and influence essential ecosystems structure and function.
Elżbieta Szeląg-Wasielewska, Agata Dąbrowska   +1 more
doaj   +1 more source

Unraveling the role of thermal fluctuations on the exciton structure of the cryptophyte PC612 and PC645 photosynthetic antenna complexes

Frontiers in Molecular Biosciences, 2023
Protein scaffolds play a crucial role in tuning the light harvesting properties of photosynthetic pigment-protein complexes, influencing pigment-protein and pigment-pigment excitonic interactions.
Beste Ozaydin, Beste Ozaydin, Carles Curutchet, Carles Curutchet   +3 more
doaj   +1 more source